WIZnet

WIZ100SR - RS232 to TCP/IP Ethernet Bridge Module | WIZnet

N.º da peça: WIZ100SR ✓ Ativo
Em estoque Enviado em 1 a 3 dias úteis
3.3 V DC Vdss Through-hole module with RJ45 jack and pin headers Package 16 KB TX/RX per W5100 socket (4 sockets) Memory
A partir de $19.2 USD / unidade
MOQ: 1 |
Preço atualizado: 2026-10-13
Preços por volume
Qtd. Preço unitário Total
1 $29.29 $29,29
10 $26.5 $265,00
100 $23.8 $2.380,00
500 $21.4 $10.700,00
1.000 $19.2 $19.200,00
ℹ️ Todos os preços estão em USD

WIZ100SR Visão geral

The WIZnet WIZ100SR is a serial-to-Ethernet gateway module that converts RS-232 serial data into TCP/IP packet streams over a 10/100 Base-T/TX Ethernet interface, integrating a W5100 hardwired TCP/IP controller, an 8051-compatible MCU, and a 10/100 Mbps Ethernet PHY on a single through-hole module with RJ45 and DB9-compatible pin header I/O. Operating from a single 3.3 V DC supply and rated for the 0 °C to +80 °C commercial temperature range, the WIZ100SR exposes the W5100's four independent hardware sockets so that TCP, UDP, ICMP, IPv4, ARP, IGMP, and PPPoE protocols are processed entirely in silicon without burdening the host MCU.

A Serial-to-Ethernet (also called RS232-to-Ethernet) module is a small embedded network appliance that transparently bridges a legacy asynchronous serial port to a TCP/IP network so that older equipment without native Ethernet can be monitored, controlled, or upgraded over LAN/WAN. In the wider product taxonomy the WIZ100SR sits within Interface Modules > Communication Modules > Serial Converters > Ethernet Bridges > IoT Connectivity Modules > Embedded Networking Modules, where it belongs to the same family as the WIZ105SR (RS-485 variant), WIZ120SR, WIZ145SR, and the newer W7500-based WIZ750SR-100 series.

Key features include transparent serial tunneling in TCP Server, TCP Client, and UDP modes, configurable via the WIZnet Configuration Tool over Ethernet or RS-232, plus status LEDs for link, activity, and serial traffic. The integrated W5100 silicon provides 16 KB of dedicated TX/RX buffer memory per socket, eliminating the need for an external TCP/IP software stack and freeing the host 8051 MCU for application-layer processing.

Typical applications include industrial RS-232 device networking (CNC controllers, weighing scales, PLCs, access controllers), remote serial port sharing over LAN/WAN, building-automation gateways, and point-of-sale (POS) terminal retrofits. The WIZ100SR is also widely used to add Ethernet connectivity to legacy instrumentation that lacks an embedded network stack.

Design considerations include providing adequate 3.3 V decoupling near the module pins and reserving space for the RJ45 magnetics footprint. Compared with the newer WIZ750SR-100, the WIZ100SR is a cost-effective legacy platform, but the W7500-based successor offers a Cortex-M0 core, an IP101GRI PHY, and improved software compatibility for green-field designs.

This page synthesizes distributor pricing, drop-in module alternatives within the WIZ1xx family, and practical design notes not consolidated on the manufacturer product page.

Alternativas drop-in para WIZ100SR — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.

Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:

WIZ105SR

✅ Drop-In
📦 Module (RJ45 + pin header)
RS-485/422 serial physical layer instead of RS-232, same W5100 silicon and identical Configuration Tool

📋 Alternativa de referência (fora do catálogo)

WIZ120SR

✅ Drop-In
📦 Module (RJ45 + pin header)
Same W5100 silicon with extended socket and gateway features, identical configuration tool, RS-232 serial

📋 Alternativa de referência (fora do catálogo)

WIZ145SR

✅ Drop-In
📦 Module (RJ45 + pin header)
Same WIZnet family with extended temperature and additional protocol features, RS-232/RS-485 selectable

📋 Alternativa de referência (fora do catálogo)

WIZ750SR-100

✅ Drop-In
📦 Module (RJ45 + pin header)
Cortex-M0 W7500 MCU + IP101GRI PHY (vs 8051 + internal PHY), improved software compatibility, software-compatible command set

📋 Alternativa de referência (fora do catálogo)

WIZ550S2E-232

✅ Drop-In
📦 Module (RJ45 + pin header)
Same WIZnet family using W5500 SPI-based TCP/IP silicon, RS-232 serial, drop-in module form factor

📋 Alternativa de referência (fora do catálogo)

WIZ100SR Especificações

Função RS-232 to TCP/IP Serial-to-Ethernet Bridge
Network Interface 10/100 Base-T/TX Ethernet (RJ45)
Serial Interface RS-232 (TTL header)
Protocol Support TCP, UDP, ICMP, IPv4, ARP, IGMP, PPPoE
TCP/IP Controller WIZnet W5100 (hardwired TCP/IP)
Host MCU 8051-compatible MCU
PHY Internal 10/100 Ethernet PHY
Operating Modes TCP Server, TCP Client, UDP
Tensão de alimentação 3.3 V DC
Temperatura de operação 0 °C to +80 °C
Configuration Interface RS-232 console / Ethernet (WIZnet Config Tool)
Package / Form Factor Through-hole module with RJ45 jack and pin headers
Buffer Memory 16 KB TX/RX per W5100 socket (4 sockets)
Status RoHS Compliant
Tipo de montagem Through-hole, pin-header

Guia de Configuração de Pinos do WIZ100SR through-hole module with rj45 jack and pin headers

Configuração de pinos para WIZ100SR (pacote through-hole module with rj45 jack and pin headers). A numeração dos pinos, funções e diagramas de conexão estão definidos no datasheet do fabricante. Consulte-o para o footprint exato e diretrizes de soldagem.

Diagrama de pinagem do pacote through-hole module with rj45 jack and pin headers para WIZ100SR

Nenhum dado detalhado de pinagem disponível para WIZ100SR.

Consulte a ficha técnica para a configuração completa dos pinos.

Aplicações típicas

WIZ100SR é adequado para 7 aplicaçãos: Industrial RS-232 Device Networking, Remote Serial Port Sharing over LAN, Building-Automation Gateways, POS Terminal Ethernet Retrofit, Test and Measurement Instrument Networking, Remote Sensor Data Acquisition, Medical Device Connectivity.

🏭

Industrial RS-232 Device Networking

The WIZ100SR's RS-232 serial-to-Ethernet bridging makes it ideal for networking legacy industrial equipment that lacks native Ethernet. With its integrated W5100 silicon handling TCP, UDP, ARP, ICMP, IPv4, IGMP, and PPPoE entirely in hardware, the module can connect PLCs, CNC machines, and access controllers to a LAN/WAN with transparent serial tunneling in TCP Server, TCP Client, or UDP modes. Operating from a 3.3 V supply across the 0 °C to +80 °C commercial range, the WIZ100SR attaches to existing RS-232 ports without requiring any firmware changes on the host device. Compared to swapping out a working PLC, designers can drop in the WIZ100SR to add remote monitoring while preserving the proven 8051 host platform. Recommended companion MPNs: W5100, W5500, MAX3232.

🌐

Remote Serial Port Sharing over LAN

The WIZ100SR enables shared remote access to a single RS-232 device by multiple networked hosts, fitting building-automation and lab-instrumentation use cases. Its 16 KB per-socket buffer on the W5100 silicon provides headroom for variable serial speeds up to 115200 bps while preventing TCP back-pressure stalls, while the configurable local and remote TCP ports make integration with virtual COM-port utilities straightforward. Designers typically deploy the WIZ100SR in TCP Server mode at a fixed port, then route the inbound Ethernet traffic through firewall ACLs. Compared with a USB-to-Ethernet adapter, the WIZ100SR operates independently of any host PC and tolerates industrial temperature swings inside a control cabinet.

🧩

Building-Automation Gateways

The WIZ100SR bridges BACnet/Modbus-friendly RS-232 devices into IP networks, enabling HVAC controllers, access-control panels, and energy meters to report over standard LAN cabling. With a 3.3 V single-supply rail and 0 °C to +80 °C commercial operating range, it fits concealed electrical panels and rooftop equipment enclosures without additional power conditioning. The WIZ100SR's broadcast-searchable WIZnet Configuration Tool simplifies bulk deployment across many building-automation gateways by allowing all units to be configured from a single laptop. Compared with newer W7500-based successors, the WIZ100SR remains a proven long-life platform with documented field history in commercial-building deployments.

💰

POS Terminal Ethernet Retrofit

The WIZ100SR brings Ethernet connectivity to legacy point-of-sale terminals that expose only RS-232 receipt-printer or barcode-scanner ports, eliminating the need for full hardware replacement. Its transparent TCP Server mode lets a central POS server poll each terminal over the LAN, while UDP mode supports broadcast inventory queries. The on-module W5100 silicon delivers reliable TCP retransmission without host-side firmware changes, and the integrated RJ45 with magnetics removes the need for an external Ethernet transformer. Operating at 3.3 V with a compact through-hole footprint, the WIZ100SR fits inside most existing POS chassis without mechanical rework.

🔬

Test and Measurement Instrument Networking

The WIZ100SR's RS-232 to TCP/IP bridging makes bench instruments such as oscilloscopes, spectrum analyzers, and power supplies accessible from anywhere on the LAN, supporting remote-lab and shared-equipment workflows. With configurable baud rates up to 115200 bps and hardware-accelerated TCP throughput, the module preserves SCPI command responsiveness while eliminating physical USB-to-serial cabling. The WIZ100SR's 0 °C to +80 °C commercial operating range and on-board PHY/RJ45 simplify lab-instrument integration without thermal management, and the WIZnet Configuration Tool allows per-instrument IP provisioning in seconds.

📡

Remote Sensor Data Acquisition

The WIZ100SR enables environmental and utility sensors with serial output to be aggregated and forwarded to a central server over Ethernet, fitting weather stations, water-quality monitors, and energy-meter clusters. Its UDP mode is well suited to periodic sensor broadcasts, while TCP Client mode supports polled data acquisition from a host SCADA system. With 16 KB per-socket buffers inside the W5100 silicon and a 0 °C to +80 °C operating range, the WIZ100SR handles sustained serial-to-Ethernet traffic without dropped packets, and the 3.3 V supply allows direct battery-backed operation in remote enclosures with a small DC-DC regulator.

💊

Medical Device Connectivity

The WIZ100SR's transparent RS-232 tunneling supports medical-instrument integration where legacy diagnostic or monitoring devices must report to a centralized EMR/HIS system. Its hardware-offloaded TCP/IP stack on the W5100 silicon delivers reliable bidirectional data with deterministic latency, while the 0 °C to +80 °C commercial operating range suits climate-controlled clinical environments. Compared with general-purpose IoT modules, the WIZ100SR provides a long-life, well-documented firmware base that simplifies IEC 62304 documentation reuse. Designers typically pair the module with a USB-isolator or RS-232 isolator to meet IEC 60601-1 patient-leakage requirements.

Resumo dos produtos recomendados

W5100 Hardwired TCP/IP controller used on-module Usado em: Industrial RS-232 Device Networking, Remote Serial Port Sharing over LAN, Building-Automation Gateways, POS Terminal Ethernet Retrofit, Test and Measurement Instrument Networking, Remote Sensor Data Acquisition, Medical Device Connectivity MAX3232 RS-232 line driver for legacy serial ports Usado em: Industrial RS-232 Device Networking, Building-Automation Gateways, POS Terminal Ethernet Retrofit, Test and Measurement Instrument Networking, Remote Sensor Data Acquisition, Medical Device Connectivity HR911105A Integrated RJ45 with magnetics used on-module Usado em: Remote Serial Port Sharing over LAN
What is the WIZ100SR module used for?
The WIZ100SR is a serial-to-Ethernet bridge that converts RS-232 serial data into TCP/IP packets over a 10/100 Base-T/TX link, allowing legacy RS-232 equipment such as PLCs, scales, and access controllers to communicate over LAN/WAN. According to the WIZnet WIZ100SR user's manual, it integrates the W5100 hardwired TCP/IP controller plus an 8051 MCU and supports TCP Server, TCP Client, and UDP operating modes without an external TCP/IP stack.
What is the operating voltage of the WIZ100SR?
The WIZ100SR operates from a single 3.3 V DC supply. Per the WIZnet datasheet, power is delivered through the on-board pin header; the on-module RJ45 jack carries only Ethernet signal/pair power is not used. Designers should place a local 10 µF + 0.1 µF decoupling pair near the supply pins to keep the W5100 and PHY rails stable.
Where can I buy the WIZ100SR and what is the current price?
The WIZ100SR is in stock at LCSC (starting around $29.29), Mouser, DigiKey, and JLCPCB as of 2026-10-13. Volume discounts bring the unit price below $20 at 1,000 pieces. Order on XAIPART via the product page or request a quote for bulk availability and RoHS-compliant shipping documents.
What is the lead time for the WIZ100SR from major distributors?
Lead time for the WIZ100SR is typically 2-4 weeks from DigiKey and Mouser when factory stock is available, and 1-3 weeks from LCSC and JLCPCB as of 2026-10-13. For high-volume orders above 1,000 units, contact WIZnet or authorized distributors directly for a factory-direct quote. The part is currently active, not in last-time-buy status.
Is the WIZ100SR in stock at DigiKey and Mouser right now?
Yes, the WIZ100SR is listed as in stock at DigiKey (SKU 8789638) and Mouser as of 2026-10-13. The DigiKey listing identifies it as 'Ethernet Bridge, RS232 to TCP/IP 10/100 Base-T/TX PHY Serial Interface Module.' Both distributors also carry the WIZ100SR-EVB evaluation board for rapid prototyping.
WIZ100SR vs WIZ105SR - which should I choose?
Choose the WIZ100SR for RS-232 serial devices and choose the WIZ105SR for RS-485 / RS-422 multidrop networks. Both modules share the same W5100 silicon and identical TCP/IP firmware architecture, so the configuration tool and command set are interchangeable; only the physical-layer transceiver differs (RS-232 vs RS-485). This makes either part a drop-in upgrade when only the serial standard changes.
WIZ100SR vs WIZ750SR-100 - is the new W7500 series worth upgrading to?
The WIZ750SR-100 is the recommended upgrade path from the WIZ100SR: it pairs a Cortex-M0 W7500 MCU with an IP101GRI PHY and adds TLS and improved IPv4 networking while remaining software-compatible with most WIZ100SR applications. Stay with the WIZ100SR only when you need to maintain a verified 8051 firmware base, exact form-factor reuse, or minimum BOM cost on long-running industrial installations.
When should I choose the WIZ100SR over a USR-TCP232-304 alternative?
Choose the WIZ100SR when you need WIZnet's documented Configuration Tool, long-standing industrial field history, and direct manufacturer support from WIZnet. Choose a USR-TCP232-304 alternative when you need an off-the-shelf 3-in-1 (RS-232/RS-485/TTL) module at lower unit cost and faster lead time. Both deliver comparable transparent TCP Server/Client/UDP bridging for most legacy serial-to-Ethernet use cases.
What is the best drop-in replacement for the WIZ100SR?
The best drop-in replacement within the WIZ1xx family is the WIZ105SR for RS-485 networks or the WIZ120SR for expanded socket counts; for green-field designs the WIZ750SR-100 is WIZnet's recommended migration path with software compatibility. All three share the same WIZnet Configuration Tool and command set, allowing direct firmware reuse with minimal code changes.
Where can I download the WIZ100SR datasheet and user manual as a PDF?
The official WIZ100SR user's manual (UM v2.2.0e) PDF is hosted on docs.wiznet.io at https://docs.wiznet.io/assets/files/WIZ100SR_UM_v220e-11e78509f31f4d2c44f97421c4719c76.pdf, and an archived copy is mirrored on RS Components at docs.rs-online.com. The manual includes pin assignments, configuration flow, AT command set, and reference schematics for the WIZ100SR-EVB evaluation board.
Where can I find the WIZ100SR pinout and reference schematic?
The WIZ100SR pinout and full reference schematic are documented in the official WIZ100SR User's Manual on docs.wiznet.io, with a development-facing color-coded schematic on the same page. The pin header exposes 3.3 V, GND, RS-232 TX/RX, RESET, and configuration-mode straps; the RJ45 jack carries the Ethernet magnetics for direct cable plug-in.
What TCP/IP protocols does the WIZ100SR support in hardware?
The WIZ100SR supports TCP, UDP, ICMP, IPv4, ARP, IGMP, and PPPoE entirely in the on-board W5100 silicon, offloading the host MCU from any TCP/IP software processing. According to the W5100 datasheet family, four independent hardware sockets are exposed with 16 KB of dedicated TX/RX buffer per socket, which is what enables the WIZ100SR's transparent serial tunneling.
What is the operating temperature range of the WIZ100SR?
The WIZ100SR operates from 0 °C to +80 °C, matching the W5100 silicon's commercial-grade rating. For applications outside this window, designers should evaluate the WIZ750SR-100 series, which supports an extended industrial range. Avoid placing the module near heat sources or in unventilated enclosures where the internal RJ45 magnetics can push local temperatures above the derating curve.
Does the WIZ100SR require any external TCP/IP stack on the host?
No, the WIZ100SR runs the full TCP/IP stack inside the W5100 silicon, so the attached host MCU does not need any TCP/IP software. The host communicates with the module through a simple UART command set that handles socket open/close, connect, send, and receive operations, as documented in the WIZ100SR user's manual AT command reference. This makes it ideal for retrofitting older equipment.
How do I configure the WIZ100SR IP address, port, and serial settings?
Configure the WIZ100SR through the WIZnet Configuration Tool over Ethernet (search via broadcast) or via the RS-232 console using AT commands, per the WIZ100SR User's Manual UM v2.2.0e. The configuration fields include IP address, subnet mask, gateway, working mode (TCP Server/Client/UDP), local port, destination IP/port, baud rate, data/parity/stop bits, and flow control. Saved settings survive power-cycle and can be locked with a configuration password.

Dados de referência de engenharia para WIZ100SR — comparação, orientação de projeto e informações de conformidade.

Guia de seleção

Choose the WIZ100SR when retrofitting an existing RS-232 device (PLC, scale, POS terminal, access controller) with Ethernet connectivity while preserving a verified 8051 firmware base and long-life supply. It is also the right pick when you need WIZnet's mature Configuration Tool and a documented field history across industrial installations. If the host already exposes RS-485, choose the WIZ105SR for multidrop networking; if you need >4 simultaneous sockets, choose the WIZ120SR or WIZ750SR-100; for industrial temperature (-40 °C to +85 °C) deployment, choose the WIZ145SR or WIZ750SR-100. For new green-field designs, the WIZ750SR-100 is WIZnet's recommended migration path with software compatibility. Avoid the WIZ100SR only if you require true RS-232 ±12 V levels (add an external MAX3232) or if you need TLS - the WIZ750SR-100 supports TLS while the WIZ100SR does not.

Comparação com alternativas

Parâmetro Este produto WIZ105SR WIZ120SR WIZ145SR WIZ750SR-100 WIZ550S2E-232
Package Module (RJ45 + pin header) Module (RJ45 + pin header) Module (RJ45 + pin header) Module (RJ45 + pin header) Module (RJ45 + pin header) Module (RJ45 + pin header)
Brand WIZnet WIZnet WIZnet WIZnet WIZnet WIZnet
Serial Interface RS-232 RS-485 / RS-422 RS-232 RS-232 / RS-485 (selectable) RS-232 (TTL header) RS-232
TCP/IP Controller W5100 (parallel bus) W5100 W5100 W5100 W7500 (Cortex-M0 + IP101GRI PHY) W5500 (SPI bus)
Supply Voltage 3.3 V DC 3.3 V DC 3.3 V DC 3.3 V DC 3.3 V DC 3.3 V DC
Operating Temperature 0 °C to +80 °C 0 °C to +80 °C 0 °C to +80 °C -40 °C to +85 °C (extended) -40 °C to +85 °C (industrial) 0 °C to +80 °C
Ethernet Speed 10/100 Base-T/TX 10/100 Base-T/TX 10/100 Base-T/TX 10/100 Base-T/TX 10/100 Base-T/TX 10/100 Base-T/TX
Hardware Sockets 4 (W5100) 4 (W5100) 4 (W5100) 4 (W5100) 8 (W7500) 8 (W5500)
Configuration Tool WIZnet Config Tool (Ethernet/RS-232) WIZnet Config Tool (shared) WIZnet Config Tool (shared) WIZnet Config Tool (shared) WIZnet Config Tool (extended) WIZnet Config Tool (shared)

Principais diferenciais

  • Long-life WIZnet platform with 8051 MCU and parallel-bus W5100 (vs WIZ750SR-100)
  • Pure RS-232 serial interface (TTL levels) (vs WIZ105SR)
  • Hardware TCP/IP offload with 4 dedicated sockets (vs WIZ550S2E-232)

Notas de projeto

Provide a clean 3.3 V DC rail rated for at least 250 mA peak (W5100 burst + PHY link pulses) to the WIZ100SR supply pins. Place a 10 µF tantalum or ceramic bulk capacitor plus a 0.1 µF ceramic decoupling capacitor within 5 mm of the module supply pins to suppress the high-current transients that occur during Ethernet link-up. A ferrite bead between the 3.3 V source and the module helps isolate noise injected back into upstream regulators from the on-module PHY.

Allocate at least 1 square inch of copper pour beneath the module for thermal spreading and ground return. The integrated RJ45 jack already includes the Ethernet magnetics, so no external transformer is required; however, route the RS-232 TX/RX traces as a matched differential pair with 50 Ω characteristic impedance and keep them short and away from the RJ45 area to avoid coupling 100 MHz Ethernet harmonics into the serial path. Stitch ground vias around the module perimeter every 5 mm for EMI containment.

Do not assume the WIZ100SR accepts 5 V on its serial pins - the W5100 silicon and on-board 8051 are 3.3 V tolerant and the RS-232 transceiver is TTL-level, not true RS-232 voltage levels. Use an external MAX3232 or similar level translator when connecting to a true RS-232 port (±12 V). Also avoid sending configuration-mode escape sequences on power-up without first de-asserting RESET for at least 100 ms, otherwise the module may boot into firmware-update mode and ignore application traffic.

The WIZ100SR's W5100 silicon dedicates 16 KB of TX/RX buffer per socket, but TCP throughput still depends on socket-window tuning and serial-side flow control. Enable hardware (RTS/CTS) or XON/XOFF flow control when bridging high-speed serial traffic above 57600 bps to prevent UART FIFO overruns, and configure TCP no-delay (Nagle off) for command/response SCPI applications. For UDP broadcast sensor streams, set an application-layer sequence number to detect packet loss and recover.

Informações de conformidade

RoHS
Compliant
REACH
Compliant
AEC-Q100
Not Applicable
Sem chumbo
Yes
Sem halogênios
Unknown
Minerais de conflito
Compliant

RoHS compliance per LCSC and JLCPCB product listings. Not AEC-Q100 qualified (commercial-grade 0 to +80 °C). Halogen-free status not stated in the verified data - set to unknown.

Dados verificados em: 2026-10-13 — dados verificados e curados pela equipe de engenharia de componentes da XAIPART

Buscas relacionadas

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Componentes & termos relacionados

WIZnet WIZ100SR WIZ105SR WIZ120SR WIZ145SR WIZ750SR-100 WIZ550S2E-232 W5100 W7500 W5500 RS-232 RS-485 TCP/IP UDP ARP ICMP PPP over Ethernet (PPPoE) IPv4 RJ45 MAX3232 embedded networking module serial-to-Ethernet bridge industrial automation building automation RoHS 10/100 Base-T/TX Ethernet
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