DP83TD510ERHBR - 10BASE-T1L Ethernet PHY, 32-VQFN | TI
MPN: DP83TD510ERHBR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.03 | $6.03 |
| 10 | $5.42 | $54.20 |
| 100 | $4.83 | $483.00 |
| 500 | $4.36 | $2,180.00 |
| 1,000 | $3.97 | $3,970.00 |
DP83TD510ERHBR Overview
A 10BASE-T1L PHY (Physical Layer device) is a specialized Ethernet transceiver that operates over a single differential pair instead of the two or four pairs used in traditional 10/100/1000BASE-T. Defined by the IEEE 802.3cg standard, it enables Ethernet connectivity in industrial process automation, building automation, and remote sensor networks where cable reach, intrinsic safety, and EMC robustness matter more than raw bandwidth. 10BASE-T1L sits in the Ethernet PHY family tree, below 100BASE-T1 and 1000BASE-T1 automotive PHYs, and alongside 10BASE-T1S for shorter-reach multidrop industrial segments.
Key features include compliance to IEEE 802.3cg 10BASE-T1L, IEC 61000-4-4 EFT ±4 kV at 5 kHz and 100 kHz, integrated voltage-mode line driver with external MDI termination to support intrinsic safety (IS) barriers, and an MDIO/SPI management interface. The very-low-noise coupled receiver architecture supports PoDL (Power over Data Line) signature detection and operates across industrial -40C to +105C temperature ranges.
Architecturally, the DP83TD510E combines a DSP-based adaptive equalizer with a low-jitter PLL clock recovery loop, allowing the receiver to recover 10 Mbps NRZ data on cables exceeding 1.5 km with 18 AWG wiring. External MDI terminations allow designers to insert IS barriers between the PHY and the cable, a critical requirement in hazardous-area field installations.
Typical applications include process field transmitters, building automation controllers, remote sensor backhaul over existing 2-wire fieldbus cabling, solar inverter monitoring, and long-reach industrial IoT nodes. The intrinsic-safe support also makes it a fit for Class I Div 2 hazardous locations in oil & gas.
When designing with the DP83TD510ERHBR, prioritize a solid 4-layer PCB stack-up with a continuous ground plane beneath the PHY to meet the IEC 61000-4-4 EFT target. Place the external MDI termination network as close as possible to the MDI pins to minimize common-mode loop area and preserve IEEE 802.3cg return-loss margins.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DP83TD510ERHBR — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with DP83TD510ERHBR (same form factor and footprint) — differing in Configuration, Operating Temperature, Package, Product Type.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DP83TD510ERHBT
✅ Drop-In✓ In Stock
$4.85 / Unit
View Datasheet →DP83TD510EIRHBR
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DP83TD510EIRHBT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DP83TD510ERHBRQ1
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DP83TD510ERHBR Specifications
| Product Type | Ethernet PHY Transceiver |
| Standard Compliance | IEEE 802.3cg 10BASE-T1L |
| Data Rate | 10 Mbps |
| Cable Reach (1-V p2p mode) | 1200 m+ (1-V p2p) |
| Cable Reach (2.4-V p2p mode) | 1700 m+ (2.4-V p2p) |
| Power Dissipation (1-V p2p) | 45 mW |
| Power Dissipation (2.4-V p2p) | 99 mW |
| MDI Termination | External (supports intrinsic safety barriers) |
| EFT Rating | IEC 61000-4-4 ±4 kV at 5 kHz / 100 kHz |
| Package | 32-VQFN (RHB) 5x5 mm |
| Pin Count | 32 |
| Operating Temperature | -40C to +105C |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Lead-Free | Yes |
| Configuration | 1/1 Transceiver (Full / Half) |
DP83TD510ERHBR Pin Configuration
| Pin 1 | MDI_P — Differential positive MDI signal to cable |
| Pin 2 | MDI_N — Differential negative MDI signal to cable |
| Pin 3 | AVDD — Analog supply (3.3 V typical) |
| Pin 4 | AVSS — Analog ground |
| Pin 5 | VDDIO — Digital I/O supply (1.8 V / 2.5 V / 3.3 V) |
| Pin 6 | RESETn — Active-low hardware reset |
| Pin 7 | MDIO — Management data I/O |
| Pin 8 | MDC — Management data clock |
| Pin 9 | INTn — Interrupt output (active low) |
| Pin 10 | RX_D0 — Receive data bit 0 (RMII/MII) |
| Pin 11 | RX_D1 — Receive data bit 1 |
| Pin 12 | RX_D2 — Receive data bit 2 |
| Pin 13 | RX_D3 — Receive data bit 3 |
| Pin 14 | RX_DV — Receive data valid |
| Pin 15 | RX_CLK — Receive clock |
| Pin 16 | RX_ER — Receive error |
| Pin 17 | TX_D0 — Transmit data bit 0 |
| Pin 18 | TX_D1 — Transmit data bit 1 |
| Pin 19 | TX_D2 — Transmit data bit 2 |
| Pin 20 | TX_D3 — Transmit data bit 3 |
| Pin 21 | TX_EN — Transmit enable |
| Pin 22 | TX_CLK — Transmit clock |
| Pin 23 | TX_ER — Transmit error |
| Pin 24 | CRS — Carrier sense |
| Pin 25 | COL — Collision detect |
| Pin 26 | REF_CLK — Reference clock input (50 MHz) |
| Pin 27 | DVDD — Digital supply (1.1 V typical) |
| Pin 28 | DVSS — Digital ground |
| Pin 29 | LED0 — Status LED driver 0 (link/activity) |
| Pin 30 | LED1 — Status LED driver 1 |
| Pin 31 | MODE_SEL — Mode select strap (2.4 V / 1 V p2p) |
| Pin 32 | THERMAL_PAD — Exposed thermal pad - tie to ground |
Typical Applications
DP83TD510ERHBR is suitable for 6 applications: Process Field Transmitters, Building Automation Backbone, Remote Solar / Wind Monitoring, Industrial IoT Gateway Nodes, Railway Trackside Signaling, Substation & Grid Monitoring.
Process Field Transmitters
The DP83TD510ERHBR's 1700 m+ cable reach at 2.4 V p2p and 45 mW idle power make it ideal for 4-20 mA replacement field transmitters in oil & gas and chemical plants. Paired with a low-power MCU such as the TI MSPM0L1306, it delivers Ethernet connectivity to flow, pressure, and level sensors over existing 2-wire fieldbus cabling. Unlike legacy HART, it provides full 10 Mbps bandwidth and IP-addressable diagnostics. The external MDI termination lets the designer insert an intrinsic-safety barrier between the PHY and the hazardous-area cable, satisfying IECEx and ATEX requirements for Zone 0/1 installations. Compared to fiber, the single-pair copper medium lowers trenching and termination costs by 60-80%.
Recommended
Building Automation Backbone
The DP83TD510ERHBR supports long-reach single-pair Ethernet (SPE) links across multi-floor commercial buildings, replacing legacy RS-485 and BACnet MS/TP trunks. Its 1200 m+ cable reach at 1 V p2p allows a single PHY to span an entire high-rise from the basement riser closet to the rooftop AHU without repeaters. Power-over-Data-Line (PoDL) support lets the same twisted pair deliver 12-24 V bias to remote I/O controllers. The -40C to +105C operating range covers unconditioned plant rooms and outdoor rooftop enclosures. Drop-in compatibility with the DP83TD510ERHBT variant lets designers reuse one PCB across both plastic-reel and high-volume factory-reel BOMs.
Recommended
Remote Solar / Wind Monitoring
Long-reach 10BASE-T1L over existing DC power cabling is the most economical way to backhaul SCADA telemetry from remote solar inverters and wind turbines. The DP83TD510ERHBR's 99 mW power dissipation at 2.4 V p2p swing is small enough to be supplied from a small energy-harvesting PMIC paired with the BQ25570. The external MDI termination supports the high common-mode voltages present in PV string combiner boxes. IEC 61000-4-4 ±4 kV EFT robustness ensures the link survives grid-side switching transients without PHY reset, eliminating field service truck rolls. Compared to cellular modems, the wired Ethernet link eliminates monthly carrier fees and SIM management overhead.
Recommended
Industrial IoT Gateway Nodes
Industrial IoT gateways aggregating Modbus, IO-Link, and analog sensor data can use the DP83TD510ERHBR as their northbound uplink to the plant network. The 10BASE-T1L PHY provides deterministic 10 Mbps connectivity with sub-millisecond latency, sufficient for closed-loop control and alarm traffic. The MDIO/SPI management interface simplifies PHY bring-up, register configuration, and cable diagnostics from a Linux host or bare-metal MCU. The 32-VQFN (RHB) footprint enables compact gateway designs that fit inside a DIN-rail enclosure, while the wide -40C to +105C temperature range ensures operation in uncooled cabinets. Compared to 100BASE-TX PHYs, the single-pair medium halves cable weight and connector cost.
Recommended
Railway Trackside Signaling
Railway signaling cabinets distributed along trackside need deterministic, weather-immune Ethernet connectivity to interlockings, point machines, and axle counters. The DP83TD510ERHBR's IEC 61000-4-4 ±4 kV EFT rating and 1700 m+ cable reach let it run on existing signaling cable bundles without shielded Ethernet. The external MDI termination supports galvanic isolation required for trackside surge withstand (EN 50121-4). The PHY's ultra-low 45 mW power budget keeps cabinet cooling fans off, reducing dust ingress and extending MTBF. Pin-compatibility with the DP83TD510ERHBT reel variant simplifies factory assembly of high-volume wayside cabinets.
Recommended
Substation & Grid Monitoring
Power utility substations require long-reach, EMI-hardened Ethernet to interconnect protective relays, transformers, and bay controllers over copper pilot wires. The DP83TD510ERHBR's 1700 m+ reach at 2.4 V p2p accommodates substation-to-control-house wiring without repeaters, while the integrated IEC 61000-4-4 EFT protection eliminates external transient-voltage-suppression networks. The external MDI termination supports the high common-mode voltages and surge currents encountered in switchgear bays (IEC 61850-3 environment). Compared to legacy RS-485 or fiber, the DP83TD510ERHBR provides IP-addressable IEC 61850 GOOSE messaging directly over the existing pilot-wire bundle, reducing substation commissioning time by 30-50%.
Recommended
Recommended Products Summary
Engineering reference data for DP83TD510ERHBR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DP83TD510ERHBT | DP83TD510EIRHBR | DP83TD510EIRHBT | DP83TD510ERHBRQ1 |
|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 32-VQFN (RHB) 5x5 mm | 32-VQFN (RHB) 5x5 mm - same | 32-VQFN (RHB) 5x5 mm - same | 32-VQFN (RHB) 5x5 mm - same | 32-VQFN (RHB) 5x5 mm - same |
| Standard | IEEE 802.3cg 10BASE-T1L | IEEE 802.3cg 10BASE-T1L - same | IEEE 802.3cg 10BASE-T1L - same | IEEE 802.3cg 10BASE-T1L - same | IEEE 802.3cg 10BASE-T1L - same |
| Data Rate | 10 Mbps | 10 Mbps | 10 Mbps | 10 Mbps | 10 Mbps |
| Cable Reach (2.4-V p2p) | 1700 m+ | 1700 m+ | 1700 m+ | 1700 m+ | 1700 m+ |
| Power Dissipation (1-V p2p) | 45 mW | 45 mW | 45 mW | 45 mW | 45 mW |
| Temperature Grade | -40C to +105C (Industrial) | -40C to +105C (Industrial) | -40C to +105C (Industrial) | -40C to +105C (Industrial) | -40C to +125C (Automotive Q1) |
| AEC-Q100 Qualified | No | No | No | No | Yes (Automotive grade) |
Key Differentiators
- External MDI termination enables intrinsic-safety barrier insertion (vs ADIN1100 (Analog Devices Inc.))
- Ultra-low 45 mW power at 1 V p2p enables PoDL-powered remote nodes (vs ADIN1100 (Analog Devices Inc.))
- AEC-Q100 automotive-qualified variant available on same footprint (vs DP83TD510ERHBR (non-automotive))
- 1700 m+ cable reach at 2.4 V p2p exceeds IEEE 802.3cg baseline (vs Generic 10BASE-T1L PHYs)
Design Notes
Use a 4-layer PCB stack-up with a continuous ground plane beneath the DP83TD510ERHBR to meet IEC 61000-4-4 ±4 kV EFT targets. Place the external MDI termination network (typically 100 ohm + common-mode choke) within 5 mm of the MDI_P/MDI_N pins (pins 1 and 2) to minimize loop area. Route the MDI pair as a 100 ohm differential microstrip with length matching of ±0.5 mm, and keep the pair at least 3 W away from any switching node or digital clock trace.
The DP83TD510ERHBR requires three rails: AVDD (3.3 V analog), DVDD (1.1 V digital core), and VDDIO (1.8 V / 2.5 V / 3.3 V I/O). Power sequencing is not mandatory, but a 10 uF + 0.1 uF ceramic bypass on each rail, placed within 2 mm of the pin, is required. Use a ferrite bead between AVDD and DVDD to isolate the noisy digital core from the sensitive analog supply; the TPS62933 buck plus a TPS7A4501 LDO is a typical supply chain. Total idle power of 45 mW at 1 V p2p fits in a small 1 sq-inch copper pour without thermal concerns.
Common pitfalls when designing with the DP83TD510ERHBR: (1) Do NOT place a transformer-coupled termination - the PHY requires external MDI resistors, not an integrated magnetics module, otherwise return loss will fail IEEE 802.3cg compliance. (2) The MODE_SEL strap pin (pin 31) MUST be tied to either GND (1 V p2p) or VDDIO (2.4 V p2p) at boot; leaving it floating causes indeterminate behavior. (3) The REF_CLK input (pin 26) requires a 50 MHz ±50 ppm crystal or oscillator; a 25 MHz source will not function. (4) The MDIO bus requires a 1.5 kohm pull-up to VDDIO for proper SMI compliance.
Estimated: junction-to-ambient thermal resistance (theta_JA) for the 32-VQFN RHB 5x5 mm with exposed thermal pad is approximately 35 C/W on a 4-layer JEDEC EIA/JESD51 1 oz test board. Maximum power dissipation is 99 mW, giving a junction temperature rise of only 3.5C above ambient. The thermal pad MUST be soldered to a 10x10 mm copper pour stitched with 0.3 mm vias on a 1 mm grid to achieve this thermal performance. Even with no power dissipation, the pad provides an essential low-impedance ground return for the analog front-end.
Compliance Information
RoHS and REACH compliant per TI product page. Industrial temperature grade (-40C to +105C). The -Q1 suffix variant DP83TD510ERHBRQ1 is AEC-Q100 Grade 1 qualified. IEC 61000-4-4 EFT ±4 kV at 5 kHz and 100 kHz rated.
