TPD1E04U04DPYR - 0.5pF ESD TVS Diode 3.6V | Texas Instruments
MPN: TPD1E04U04DPYR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0.1894 | $0.19 |
| 10 | $0.17 | $1.70 |
| 100 | $0.15 | $15.00 |
| 500 | $0.13 | $65.00 |
| 1,000 | $0.11 | $110.00 |
TPD1E04U04DPYR Overview
An ESD protection diode, also called a TVS (transient voltage suppressor) diode, is a semiconductor device within the broader family of circuit protection components that shunts electrostatic discharge events away from sensitive integrated circuits. In the system hierarchy, ESD protection sits between external connectors and internal SoCs, providing a low-impedance path to ground when a transient voltage exceeds the diode trigger threshold, then returning to a high-impedance state.
Key features include the ultra-low 0.5 pF channel capacitance, which preserves signal integrity on high-speed interfaces up to 6 Gbps such as HDMI 2.0 and USB 3.0; a low dynamic resistance (RDYN) that yields an ultra-low clamping voltage during strikes; and a compact 2-X1SON footprint that fits directly at the connector. According to the TI datasheet, the device is rated for ESD strikes above the maximum level specified in IEC 61000-4-2 (Level 4).
Architecturally, the TPD1E04U04 uses a unidirectional steering-diode topology with a precision internal trigger structure, so it normally presents only 0.5 pF of loading to the protected line. The low RDYN is the critical parameter: during a discharge, clamping voltage equals breakdown voltage plus strike current multiplied by dynamic resistance, so minimizing RDYN directly reduces residual voltage at the protected SoC.
Typical applications include HDMI 2.0 port protection, USB 3.0/3.1 connector protection, and other high-speed differential or single-ended lines such as eMMC or MIPI interfaces where capacitance budget is under 1 pF. Operating range is -40C to +125C, suiting automotive-adjacent and industrial designs.
Design tip: place the TPD1E04U04 within a few millimeters of the connector, before any series elements, and route the ground path with low-inductance vias to the ground plane; excessive series inductance raises effective clamping voltage.
This page synthesizes distributor pricing, drop-in alternatives, comparison tables, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for TPD1E04U04DPYR — 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 TPD1E04U04DPYR (same form factor and footprint) — differing in Clamping Voltage, Package, Peak Pulse Current (Ipp), Reverse Standoff Voltage.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ESD321DPYR
✅ Drop-In📋 Reference alternative (not in catalog)
ESD351DPYR
✅ Drop-In✓ In Stock
$0.0727 / Unit
View Datasheet →TPD1E0B04DPYR
✅ Drop-In📋 Reference alternative (not in catalog)
PESD5V0S1UL
✅ Drop-In📋 Reference alternative (not in catalog)
ESD5Z2.5T1G
✅ Drop-In📋 Reference alternative (not in catalog)
TPD1E04U04DPYR Maximum Ratings & Electrical Characteristics
| Protection Type | Unidirectional ESD / TVS diode |
| Channels | 1 |
| Reverse Standoff Voltage | 3.6 V |
| Clamping Voltage | 8.9 V |
| Peak Pulse Current (Ipp) | 2.5 A (8/20 us) |
| IO Capacitance | 0.5 pF |
| ESD Rating | +/-16 kV (IEC 61000-4-2 Level 4) |
| Maximum Data Rate | 6 Gbps |
| Operating Temperature | -40C to +125C |
| Package | 2-X1SON (1 x 0.60 mm) |
| Mounting Type | Surface Mount |
| Typical Applications | HDMI 2.0, USB 3.0 |
| RoHS Status | Compliant |
TPD1E04U04DPYR Pin Configuration
| Pin 1 | I/O — Cathode node connected to the protected signal line |
| Pin 2 | GND — Anode node connected to ground plane |
Typical Applications
TPD1E04U04DPYR is suitable for 6 applications: HDMI 2.0 Port Protection, USB 3.0 / 3.1 Connector Protection, Consumer Electronics External Interfaces, Industrial Communication Ports, Networking and Router Equipment, Automotive-Adjacent Infotainment Interfaces.
HDMI 2.0 Port Protection
The TPD1E04U04DPYR is purpose-built for HDMI 2.0 line protection, where its 0.5 pF IO capacitance keeps the TMDS channel within the eye-diagram budget for 6 Gbps operation. Placed directly at the HDMI receptacle, one device per TMDS/CEC/HPD line, it shunts IEC 61000-4-2 Level 4 (±16 kV) contact strikes to ground before they reach the HDMI transmitter SoC. Its low dynamic resistance and 8.9 V clamping voltage limit residual voltage below typical HDMI transceiver absolute-maximum ratings. The 2-X1SON 1.0 x 0.60 mm footprint fits under or beside the connector shell, and the -40C to +125C range covers consumer through industrial displays.
Recommended
USB 3.0 / 3.1 Connector Protection
USB 3.0 SuperSpeed pairs run at 5 Gbps, which demands ESD protection with sub-1-pF capacitance; the TPD1E04U04DPYR's 0.5 pF loading preserves the compliance eye mask while providing ±16 kV IEC 61000-4-2 strikes protection at the user-touchable connector. Each SS RX/TX and D+/D- line receives one diode to ground. The 8.9 V clamp and 2.5 A (8/20 us) Ipp absorb discharge energy from cables and human contact. Because the device presents a simple diode-to-ground topology, it introduces no series insertion loss - an advantage over steering-diode arrays that add trace stubs. Layout requires short ground vias to prevent inductance from raising clamp voltage.
Recommended
Consumer Electronics External Interfaces
Smartphones, tablets, set-top boxes, and wearables expose user-accessible connectors that routinely see ESD events in daily handling. The TPD1E04U04DPYR's 1.0 x 0.60 mm 2-X1SON package minimizes board area on dense consumer PCBs, and its 0.5 pF capacitance supports eMMC, MIPI, and high-speed data lines alike. The -40C to +125C operating range and RoHS compliance fit consumer environmental requirements. Its low 8.9 V clamping voltage protects sensitive application processors whose I/O often tolerate only limited transient voltage, improving field-failure rates from static discharge during docking, charging, or accessory connection.
Recommended
Industrial Communication Ports
Industrial equipment such as PLCs, motor drives, and factory sensors exposes RS-485, CAN, and Ethernet service ports to harsh handling and charged-operator discharge. The TPD1E04U04DPYR protects each exposed line with ±16 kV IEC 61000-4-2 Level 4 capability while its 0.5 pF capacitance is negligible on lower-speed buses and acceptable on 100 Mbit Ethernet pairs. The -40C to +125C range matches industrial ambient requirements, and the robust 2.5 A (8/20 us) Ipp rating handles repeated transients. Deploying it ahead of transceiver ICs such as isolated RS-485 or Ethernet PHYs measurably reduces field returns from ESD damage.
Recommended
Networking and Router Equipment
Routers, switches, and access points expose RJ45, USB, and console ports to cable-insertion ESD. The TPD1E04U04DPYR's 6 Gbps rating covers gigabit Ethernet magnetics secondary-side lines and USB service ports, while 0.5 pF capacitance preserves 1000BASE-T signal margins. Its small 2-X1SON package fits the tight clearance zones near connectors on high-density switching boards, and operation to +125C accommodates constrained airflow in fanless designs. Because each channel is independent, designers scale protection line-by-line, matching the device count to exposed pins and cost targets without over-specifying capacitance budget on legacy-speed lines.
Recommended
Automotive-Adjacent Infotainment Interfaces
Although the TPD1E04U04DPYR is not AEC-Q100 qualified, its -40C to +125C range and robust ±16 kV performance are used in infotainment-adjacent and commercial-vehicle applications such as HDMI display links, USB charging/data ports, and rear-seat entertainment lines. The 0.5 pF capacitance keeps 6 Gbps video and 5 Gbps USB links compliant, while the 8.9 V clamp protects display SoCs. For designs requiring formal automotive qualification, TI offers the same 3.6 V class in AEC-Q100 variants; for aftermarket and non-qualified platforms, this device delivers datasheet-level ESD performance at consumer-tier pricing.
Recommended
Recommended Products Summary
Engineering reference data for TPD1E04U04DPYR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ESD321DPYR | ESD351DPYR | TPD1E0B04DPYR | PESD5V0S1UL | ESD5Z2.5T1G |
|---|---|---|---|---|---|---|
| Package | 2-X1SON (1 x 0.60 mm) | 2-X1SON (DPY) - same | 2-X1SON (DPY) - same | 2-X1SON (DPY) - same | 2-X1SON class - same footprint | SOD-523 - footprint differs |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Nexperia | STMicroelectronics |
| Reverse Standoff Voltage | 3.6 V | 3.6 V | 3.6 V | 3.6 V | 5.0 V | 2.5 V |
| P2P Compatibility | Reference part | Yes (per TI E2E forum) | Yes (per TI E2E forum) | Yes (same DPY footprint) | Verify pin mapping | No - SOD-523 footprint |
Key Differentiators
- Ultra-low 0.5 pF capacitance for 6 Gbps links (vs PESD5V0S1UL)
- Lower clamping performance available in same footprint (vs ESD321DPYR)
- Availability advantage within TI single-channel family (vs ESD321DPYR)
Design Notes
Place the TPD1E04U04DPYR within a few millimeters of the connector pin being protected, before any series resistors or common-mode chokes. Connect pin 2 (GND) to the ground plane with at least two vias placed immediately adjacent to the pad; a long, thin ground return adds series inductance that can add tens of volts of overshoot to the 8.9 V clamp during a fast ±16 kV IEC 61000-4-2 strike, defeating the protection at the SoC.
Although 0.5 pF is very low, on 6 Gbps HDMI 2.0 or 5 Gbps USB 3.0 lines every picofarad matters. Keep stub lengths to the ESD pad under 2-3 mm and avoid placing the diode on a branch trace; inline placement minimizes the reflection contribution. Run IBIS/S-parameter simulation with the TI-provided ESD model when designing near the eye-mask limit - the 0.5 pF plus via capacitance can consume a measurable share of the compliance margin.
Do not use TPD1E04U04DPYR on lines with signals exceeding the 3.6 V reverse standoff voltage, or the diode will begin conducting and distort the signal or dissipate power. For 5 V-tolerant lines choose a 5 V standoff device such as Nexperia PESD5V0S1UL instead. Also note the ordering-code difference: DPYR is reel packaging, DPYT is cut tape - TI E2E forum posts show that during some periods only the tape option was in stock, which matters for automated assembly planning.
Compliance Information
RoHS compliant per Mouser/DigiKey listings. Not an AEC-Q100 qualified automotive part (no Q1 suffix). REACH and halogen-free status not stated in provided data.
