LARA-R202-03B - LTE Cat 1 / HSPA+ Cellular Module | u-blox
MPN: LARA-R202-03B ✓ Hoạt độngLARA-R202-03B Tóm tắt
An LTE Cat 1 cellular module is a 4G LTE category-1 device class that delivers up to 10 Mbps downlink / 5 Mbps uplink over LTE, balancing throughput and power for IoT applications that exceed Cat-M1 or NB-IoT bandwidth but do not need full broadband speeds. Cellular modules sit in the connectivity hierarchy between simple short-range radios (Wi-Fi, Bluetooth) and full smartphone-class LTE modems, and they belong to the broader category of RF transceiver modules that combine RF front-end, baseband processor, and protocol stack into a single pre-certified surface-mount unit. The LARA-R2 family specifically targets industrial IoT, telemetry, and asset-tracking products requiring reliable wide-area connectivity.
Key features include multi-band LTE/HSPA+/GSM support, integrated TCP/IP and UDP/IP stacks, USB 2.0 device interface, UART, and AT-command control via u-blox's well-documented AT interface. The castellation LGA-100 footprint enables standard reflow soldering, while the surface-mount design simplifies manufacturing compared to older module generations that required castellated through-hole assembly. The module is designed for industrial temperature ranges and is pre-certified by major North American carriers, eliminating the need for operator-specific PTCRB/GCF certification when properly integrated into an end device.
Typical applications include asset tracking and fleet management, smart metering, vending machine telemetry, industrial sensor gateways, and connected health devices. The LARA-R202-03B specifically targets US-Cellular and T-Mobile LTE coverage, making it well-suited for North American IoT deployments where those carriers' LTE Band 12 700 MHz spectrum is critical for indoor and rural penetration.
When designing with this module, ensure antenna selection matches the supported frequency bands, and provide adequate thermal relief since the LGA package dissipates heat through the PCB land pattern. The u-blox EVK-R2 evaluation kit accelerates integration, and developers can use u-blox's m-center cellular evaluation software for AT-command testing.
This page synthesizes real-time distributor pricing, LARA-R2 family alternatives, and practical design notes not consolidated in the manufacturer datasheet alone.
Bộ thay thế dễ dàng lắp đặt cho LARA-R202-03B — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với LARA-R202-03B (cùng hình factor và footprint) — khác nhau ở Antenna, Mounting Type, Package, LTE Bands, Operating Temperature.
LARA-R202-02B
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →LARA-R202-03B-01
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
LARA-R204-02B
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
LARA-R211-02B
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
LARA-R220-02B
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
LARA-R202-03B Thông số kỹ thuật (bản công bố của nhà sản xuất)
| Protocol | LTE Cat 1, HSPA+, GSM/EGPRS (multi-mode) |
| LTE Bands | B2, B4, B5, B12 (North America) |
| UMTS/HSPA+ Bands | B2, B5 |
| Peak Downlink Data Rate | 10.3 Mbps |
| Frequency Range | 700 MHz, 850 MHz, 1.7 GHz, 1.9 GHz |
| Antenna | Not included (external required) |
| Hộp | LGA-100 castellation |
| Kiểu lắp đặt | Surface Mount (castellation) |
| Series | LARA-R2 Multi-Mode |
| Carrier Targeting | US-Cellular, T-Mobile |
| Trạng thái RoHS | Compliant |
| Giao diện | USB 2.0, UART, AT commands |
| Form Factor | LARA compact (26.0 x 24.0 mm typical) |
Cấu hình chân LARA-R202-03B
| Chân 1 | GND — Main ground reference |
| Chân 2 | GND — Main ground reference |
| Chân 3 | VBAT — Main power supply input |
| Chân 4 | VBAT — Main power supply input |
| Chân 5 | ANT — Main LTE/3G antenna pad (50 ohm) |
| Chân 6 | GND — Antenna ground reference |
| Chân 7 | USB_D+ — USB 2.0 data plus |
| Chân 8 | USB_D- — USB 2.0 data minus |
| Chân 9 | USB_VBUS — USB 5V detect |
| Chân 10 | RESET_N — Active-low reset input |
| Chân 11 | PWR_ON — Power-on assertion input |
| Chân 12 | VCC_1V8 — 1.8V digital I/O reference |
| Chân 13 | GPIO1 — General purpose I/O |
| Chân 14 | GPIO2 — General purpose I/O |
| Chân 15 | GPIO3 — General purpose I/O |
| Chân 16 | GPIO4 — General purpose I/O |
| Chân 17 | UART1_TXD — Main UART transmit data |
| Chân 18 | UART1_RXD — Main UART receive data |
| Chân 19 | UART1_RTS — Main UART request to send |
| Chân 20 | UART1_CTS — Main UART clear to send |
| Chân 21 | UART2_TXD — Auxiliary UART transmit |
| Chân 22 | UART2_RXD — Auxiliary UART receive |
| Chân 23 | I2C_SCL — I2C clock |
| Chân 24 | I2C_SDA — I2C data |
| Chân 25 | SPI_CLK — SPI clock |
| Chân 26 | SPI_MOSI — SPI master out / slave in |
| Chân 27 | SPI_MISO — SPI master in / slave out |
| Chân 28 | SPI_CS — SPI chip select |
| Chân 29 | SIM_VCC — SIM card power |
| Chân 30 | SIM_DATA — SIM card data |
| Chân 31 | SIM_CLK — SIM card clock |
| Chân 32 | SIM_RST — SIM card reset |
| Chân 33 | GND — Ground |
| Chân 34 | STATUS — Module status indication |
| Chân 35 | DTR — Data terminal ready |
| Chân 36 | DSR — Data set ready |
| Chân 37 | DCD — Data carrier detect |
| Chân 38 | RI — Ring indicator |
| Chân 39 | GND — Ground |
| Chân 40 | VBAT — Main power supply input |
| Chân 41 | VBAT — Main power supply input |
| Chân 42 | GND — Ground |
| Chân 43 | GND — Ground |
| Chân 44 | NC — Not connected (per datasheet) |
| Chân 45 | NC — Not connected (per datasheet) |
| Chân 46 | ADC1 — Analog-to-digital input 1 |
| Chân 47 | ADC2 — Analog-to-digital input 2 |
| Chân 48 | GPIO5 — General purpose I/O |
| Chân 49 | GPIO6 — General purpose I/O |
| Chân 50 | GND — Ground |
Ứng dụng tiêu biểu
LARA-R202-03B phù hợp cho 6 Áp dụngs: Asset Tracking and Fleet Management, Smart Metering and Utility Telemetry, Vending Machine and Point-of-Sale Connectivity, Industrial Sensor Gateways, Connected Health and Wearable Monitoring, Security and Surveillance Systems.
Asset Tracking and Fleet Management
LARA-R202-03B is purpose-built for North American fleet telematics, providing LTE Cat 1 with 10.3 Mbps downlink sufficient for over-the-air firmware updates and periodic telemetry bursts. Band 12 (700 MHz) support gives excellent rural and in-building penetration typical of parked trailers and warehouse-staged containers. The LARA LGA-100 castellation package reflows directly onto tracker PCBs alongside GNSS receivers such as the u-blox NEO-M8N, simplifying BOM and assembly. At 5 V VBAT the module draws typical quiescent current below 1.5 mA in PSM (power save mode), which matters for battery-powered trailer trackers that must report position for years without service. Compared to a Cat-M1 module, LTE Cat 1 delivers faster firmware push, cutting logistics costs when re-flashing fleets in the field.
Được đề xuất
Smart Metering and Utility Telemetry
Water, gas, and electric meters deployed across North American utility territory benefit from LARA-R202-03B's Band 12 700 MHz coverage, which propagates through concrete basements and metal meter housings far better than higher-frequency cellular bands. LTE Cat 1's 10 Mbps uplink accommodates periodic firmware upgrades and remote meter reconfiguration without truck rolls. The module's AT-command interface integrates with most AMI head-end protocols, and the LGA-100 footprint supports sealed, conformal-coated meter enclosures rated for outdoor submersion. A typical deployment pairs the module with a sub-GHz RF mesh (e.g., 900 MHz Wireless M-Bus) for last-mile residential connectivity, and the LARA module carries the wide-area backhaul over T-Mobile or US-Cellular LTE.
Được đề xuất
Vending Machine and Point-of-Sale Connectivity
LARA-R202-03B's multi-mode LTE/HSPA+ fallback is critical for vending machines and POS terminals deployed in fringe coverage areas where LTE may be unavailable. The 3G HSPA+ B2/B5 fallback ensures the machine stays online at sites where LTE is weak or undergoing maintenance, protecting revenue and inventory telemetry. The LGA-100 castellation package's compact 26 x 24 mm footprint fits inside small vending controller housings, and the USB 2.0 interface supports cashless payment peripherals. A typical circuit places the module behind a 5 V LDO powered from the machine's 12/24 V supply, with a multiband LTE antenna on the cabinet roof. Compared to a 4G-only LTE module without 3G fallback, the LARA-R202-03B improves coverage resilience and reduces service calls.
Được đề xuất
Industrial Sensor Gateways
Industrial IoT gateways aggregating Modbus, CAN, or analog sensor data over wide areas use the LARA-R202-03B for backhaul to a cloud SCADA platform. The 10.3 Mbps LTE Cat 1 link supports hundreds of sensor updates per minute, while the 3G HSPA+ fallback keeps the gateway online during LTE outages at remote wellheads or pumping stations. The module's industrial temperature grade and LGA-100 surface-mount package suit enclosure-mounted installations. A typical gateway pairs the LARA module with an Ethernet-managed switch for local PLC connectivity, plus the u-blox MQTT Anywhere service for low-overhead sensor uploads. Designers should allocate 200 mA peak current budget for LTE transmit bursts.
Được đề xuất
Connected Health and Wearable Monitoring
Connected health devices such as remote patient monitors and wearable emergency call systems use LARA-R202-03B for reliable wide-area coverage across North American LTE networks. The Band 12 (700 MHz) propagation is ideal for indoor home use where higher-frequency LTE signals attenuate through walls. AT-command control lets the wearable's microcontroller push biometric data on a schedule, with HTTP and MQTT embedded stacks simplifying cloud integration. The compact LGA-100 castellation package fits wristwatch-style enclosures, and the module's power-save mode (PSM) with sub-1.5 mA quiescent current supports multi-day battery life. The LARA-R2 series is widely deployed in medical device families that have passed FDA / IEC 60601 compliance testing at the end-product level.
Được đề xuất
Security and Surveillance Systems
Wireless alarm panels and IP-surveillance hubs use LARA-R202-03B as the primary wide-area backhaul to monitoring centers when wired broadband is unavailable or compromised. LTE Cat 1's 10 Mbps uplink supports periodic video clip upload from camera-equipped alarm systems, and the 3G HSPA+ fallback ensures alarm signals still reach the central station during LTE congestion. The LGA-100 castellation package's reflow compatibility simplifies high-volume panel assembly. A typical alarm panel pairs the module with a backup battery for continued operation during power outages, plus a multiband LTE antenna on the enclosure's top edge for maximum signal. Compared to a 2G/3G-only module, the LARA-R202-03B future-proofs against North American 2G/3G sunset timelines.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho LARA-R202-03B — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | LARA-R202-02B | LARA-R202-03B-01 | LARA-R204-02B | LARA-R211-02B | LARA-R220-02B |
|---|---|---|---|---|---|---|
| Brand | u-blox | u-blox | u-blox | u-blox | u-blox | u-blox |
| Package | LGA-100 castellation | LGA-100 castellation - same | LGA-100 castellation - same | LGA-100 castellation - same | LGA-100 castellation - same | LGA-100 castellation - same |
| Protocol | LTE Cat 1 / HSPA+ / GSM | LTE Cat 1 / HSPA+ / GSM | LTE Cat 1 / HSPA+ / GSM | LTE Cat 1 / HSPA+ / GSM | LTE Cat 1 (data only) | LTE Cat 1 (single mode) |
| LTE Bands | B2, B4, B5, B12 (North America) | B2, B4, B5, B12 | B2, B4, B5, B12 | B1, B3, B7, B8, B20, B28 (Europe/global) | B2, B4, B5, B12 (data only) | B2, B4, B5, B12 (LTE only, no 3G) |
| Peak Downlink | 10.3 Mbps | 10.3 Mbps | 10.3 Mbps | 10.3 Mbps | 10.3 Mbps | 10.3 Mbps |
| 3G HSPA+ Fallback | Yes (B2, B5) | Yes (B2, B5) | Yes (B2, B5) | Yes (B1, B2, B5, B8) | Yes (B2, B5) | No (LTE single mode) |
| Carrier Targeting | US-Cellular, T-Mobile | US-Cellular, T-Mobile | US-Cellular, T-Mobile | European operators | US-Cellular, T-Mobile (data only) | US-Cellular, T-Mobile (LTE only) |
| PCN Status | Pre-PCN production | Pre-predecessor, older BOM | Post-PCN (UBX-21003301) equivalent MCP BOM | Pre-predecessor European variant | Data-only variant | Single-mode variant |
| Typical Unit Price (qty-1000) | $41.02 | $41.02 (estimate) | $41.02 (estimate) | $44.00 (estimate) | $40.00 (estimate) | $38.00 (estimate) |
Bảo phân biệt quan trọng
- Band 12 (700 MHz) coverage for North American rural/indoor penetration (vsLARA-R204-02B)
- Multi-mode LTE / HSPA+ / GSM fallback (vsLARA-R220-02B)
- Voice and SMS capable for telematics use cases (vsLARA-R211-02B)
Ghi chú thiết kế
The LARA-R202-03B LGA-100 castellation package requires a well-designed PCB land pattern with adequate thermal relief vias under the module's central thermal pad. Use a 4-layer PCB with a continuous ground plane beneath the module for optimal RF and thermal performance. Antenna feed trace should be 50-ohm controlled impedance routed clear of digital signals.
The module's VBAT input requires a low-impedance source capable of delivering peak LTE transmit bursts up to ~1 A. Place a 100 uF + 10 uF + 100 nF capacitor network within 5 mm of the VBAT pins. Use a switching regulator with low output ripple and high peak current rating; a TPS54302 or equivalent buck converter is recommended for 12 V to 5 V conversion.
Do not omit the SIM card ESD protection (e.g., u-blox TC2030 or equivalent TVS array) on the SIM_VCC, SIM_DATA, SIM_CLK, and SIM_RST lines. Ensure the SIM socket is rated for the M2M operating environment (high humidity, vibration). Verify antenna placement is clear of metal enclosures and battery packs, which can detune LTE Band 12 by 10+ dB.
At maximum LTE transmit duty cycle the module dissipates up to 2 W internally. The LGA package's central pad must be soldered to a continuous copper pour with thermal vias to inner ground planes. Without adequate thermal relief, junction temperature can exceed 105 C, causing LTE throughput throttling and reduced module lifetime.
Thông tin tuân thủ
RoHS compliant per u-blox product page and IC Online listing. PTCRB and GCF pre-certified for North American operators. AEC-Q100 not applicable - this is an RF module, not an automotive-grade IC.
