Texas Instruments TPD4E002DRL2
- Part No.:
- TPD4E002DRL2
- Manufacturer:
- Texas Instruments
- Category:
- TVS Diodes
- Package:
- SOT-553
- Datasheet:
-
TPD4E002DRL2.pdf
- Description:
- TVS DIODE 3VWM SOT5
- Quantity:
- Payment:

- Shipping:

Inventory:3,930
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Product details
Overview
TPD4E002DRL2 from Texas Instruments is a quad-channel unidirectional TVS diode array designed for ESD protection of high-speed data I/O lines. It delivers ±15-kV IEC 61000-4-2 contact discharge protection, 11-pF typical I/O capacitance per channel, and 6.1-V minimum breakdown voltage - enabling reliable safeguarding of USB, HDMI, and other sub-100-MHz interfaces without signal integrity degradation.
For engineers reviewing the TPD4E002DRL2 datasheet, TPD4E002DRL2 pinout, TPD4E002DRL2 application, or TPD4E002DRL2 equivalent, key selection criteria include low capacitance matching across all four channels, SOT-5X3 (DRL) package footprint under 2.6 mm², ±15-kV ESD rating, and compatibility with 0–5-V operating voltage rails in space-constrained portable electronics designs.
Technical Context
The TPD4E002DRL2 integrates four matched unidirectional clamping diodes in a monolithic silicon structure, ensuring tight capacitance uniformity (<±0.5 pF variation between channels) and minimal inter-channel crosstalk. Its trigger behavior is defined by a 6.1-V minimum reverse breakdown voltage and ~0.5-V forward conduction threshold, enabling fast clamping response within tens of nanoseconds during ESD transients.
It operates passively with no power supply required and functions exclusively as a voltage-triggered shunt path to GND. During an IEC 61000-4-2 ±15-kV contact discharge event, it limits clamp voltage to ≤12 V (typical at 8-A TLP), while sustaining 2.5-A peak pulse current per IEC 61000-4-5 (8/20-µs waveform) with 25-W peak pulse power dissipation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ESD Protection | ±15-kV IEC 61000-4-2 contact discharge - exceeds Level 4 immunity for handheld and peripheral interfaces |
| I/O Capacitance | 11 pF (typical per channel) - preserves signal integrity up to 100 MHz on USB 2.0, SDIO, and UART lines |
| Breakdown Voltage | 6.1 V (min) - ensures safe operation above 5-V logic rails while triggering before downstream IC damage thresholds |
| Leakage Current | <100 nA at 3 V - negligible loading on battery-powered or high-impedance sensor interfaces |
| Peak Pulse Current | 2.5 A (IEC 61000-4-5, 8/20-µs) - handles surge events from cable discharge or lightning-induced coupling |
| Package Size | SOT-5X3 (DRL), 1.60 mm × 1.20 mm - occupies <2.6 mm² PCB area, ideal for ultra-compact mobile PCB layouts |
| Operating Temperature | –40°C to +125°C - supports industrial and automotive infotainment applications with extended thermal range |
Pinout & Package
SOT-5X3 (DRL) package: 5-pin plastic small outline transistor with 1.60 mm × 1.20 mm body size, 0.6-mm max height, and single-row lead configuration. Designed for surface-mount assembly with moisture sensitivity level (MSL) 1 and lead finish NiPdAu.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IO1) | Protected I/O channel | Unidirectional ESD clamp input/output node tied to first data line (e.g., USB D+) |
| 2 (GND) | Common reference | Dedicated low-inductance ground return path for all four clamping diodes |
| 3 (IO2) | Protected I/O channel | Unidirectional ESD clamp input/output node tied to second data line (e.g., USB D–) |
| 4 (IO3) | Protected I/O channel | Unidirectional ESD clamp input/output node tied to third data line (e.g., UART TX) |
| 5 (IO4) | Protected I/O channel | Unidirectional ESD clamp input/output node tied to fourth data line (e.g., UART RX) |
Key Features
| Feature | Design Value |
|---|---|
| Capacitance matching | Monolithic construction ensures <0.5-pF variation between IO1–IO4 - critical for differential pair symmetry in USB/HDMI |
| Board space efficiency | 2.6 mm² total footprint - replaces four discrete 0402 TVS diodes, saving >60% PCB area |
| Low dynamic resistance | 2 Ω (typical) - minimizes voltage overshoot during fast ESD transients, reducing stress on protected ICs |
| High integration density | Four independent unidirectional clamps in one die - eliminates routing complexity and component count for multi-line ports |
| Thermal robustness | Junction-to-board thermal resistance of 42.9°C/W - enables reliable operation under sustained surge conditions on standard FR-4 |
Applications
| USB 2.0 Interface Protection | HDMI Data Lane Protection |
|---|---|
Use Scenario: Protecting USB 2.0 D+/D– lines on smartphones, tablets, and docking stations against user-handling ESD. IC Role / Device Role / Timing Role: Passive shunt TVS array clamping transient overvoltage to GND before it reaches the USB transceiver IC. Use Value: Maintains 480-Mbps data rate integrity via 11-pF per-channel capacitance and prevents latch-up or gate oxide damage in host/peripheral PHYs. |
Use Scenario: Safeguarding HDMI TMDS clock and data channels in set-top boxes and monitors exposed to frequent cable insertion/removal. IC Role / Device Role / Timing Role: Unidirectional voltage suppressor placed at connector side to divert ESD energy away from HDMI controller and serializer ICs. Use Value: Matches differential impedance due to symmetrical capacitance across IO1–IO4, avoiding skew-induced jitter or bit errors. |
| Industrial Serial Port Protection | Consumer Audio Interface Protection |
Use Scenario: Shielding RS-232/RS-485 transceivers in factory automation equipment from ESD generated by operator interaction with control panels. IC Role / Device Role / Timing Role: Four-channel ESD clamp deployed on TX/RX/RTS/CTS lines to maintain signal fidelity in noisy industrial environments. Use Value: Withstands –40°C to +125°C ambient and provides 2.5-A surge current handling - suitable for uncontrolled cabinet installations. |
Use Scenario: Securing analog audio I/O (line-in, mic-in, headphone-out) on smart speakers and soundbars against static discharge from user touch or cable handling. IC Role / Device Role / Timing Role: Low-leakage (≤100 nA) TVS array preventing DC offset shift or noise injection into audio amplifier inputs. Use Value: 6.1-V breakdown avoids false triggering on 3.3-V or 5-V bias rails while delivering ±15-kV system-level ESD immunity per IEC 61000-4-2. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPD4E001DQAR | Lower capacitance (0.8 pF vs. 11 pF), but only ±8-kV IEC 61000-4-2 rating and higher cost | Better suited for >500-MHz RF or MIPI interfaces; insufficient for USB 2.0 surge margin | Select only when ultra-low capacitance is mandatory and ESD threat level is ≤±8 kV |
| SMAJ4.5A | Discrete SMA package, 4.5-V standoff, 100-pF capacitance, no multi-channel integration | Requires four separate devices and larger PCB area; unsuitable for high-density layout | Use only for legacy redesigns where SOT-5X3 footprint is unavailable or thermal constraints favor larger packages |
Compared with TPD4E002DRL2, TPD4E001DQAR trades ESD robustness for bandwidth, while SMAJ4.5A sacrifices integration and board space efficiency for higher surge energy handling - making TPD4E002DRL2 the optimal balance of compactness, ±15-kV immunity, and 100-MHz signal compatibility in modern portable electronics.
Availability
TPD4E002DRL2 is available at Aetrix Electronics and suitable for USB interface protection, HDMI data lane safeguarding, and industrial serial port hardening requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for TPD4E002DRL2 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor company specializing in analog, embedded processing, and connectivity technologies, with decades of leadership in ESD protection device innovation.
The TPD4E002DRL2 belongs to TI's transient voltage suppressor (TVS) diode array product line, engineered specifically for high-density, high-speed digital interface protection in consumer, computing, and industrial systems.
FAQ
What is the primary function of the TPD4E002DRL2 in a circuit?
The TPD4E002DRL2 serves as a quad-channel unidirectional ESD protection device that clamps transient overvoltages on up to four I/O lines to ground. It activates during electrostatic discharge events - such as ±15-kV IEC 61000-4-2 contact strikes - by providing a low-impedance path to GND, thereby limiting voltage seen by downstream ICs to safe levels. The TPD4E002DRL2 requires no external power and operates entirely passively based on its diode junction characteristics.
Does the TPD4E002DRL2 support bidirectional signal lines like USB D+ and D–?
Yes, the TPD4E002DRL2 supports bidirectional data lines including USB D+ and D– because each of its four channels is configured as a unidirectional TVS diode from I/O to GND. This architecture allows normal signal swing in both directions (0–5 V) while clamping positive transients above ~6.1 V and negative transients below ~–0.5 V. Its 11-pF capacitance per channel ensures minimal impact on USB 2.0 signal integrity up to 480 Mbps.
What is the maximum operating frequency supported by the TPD4E002DRL2?
The TPD4E002DRL2 is characterized for use with signals up to 100 MHz, as confirmed by its 11-pF typical I/O capacitance and verified performance in USB 2.0, HDMI, and high-speed UART applications. Its monolithic design ensures consistent capacitance matching across all four channels, minimizing skew and maintaining signal fidelity. Frequency response is validated in the datasheet's "I/O Capacitance vs Frequency" plot (Figure 2), showing stable capacitance up to 10 MHz and gradual roll-off beyond - supporting reliable operation through the fundamental and lower harmonics of 100-MHz digital waveforms.
Can the TPD4E002DRL2 be used in automotive applications?
The TPD4E002DRL2 is rated for operation from –40°C to +125°C and meets AEC-Q200 stress test recommendations for passive components, though it is not officially AEC-Q100 qualified as an integrated circuit. It has been widely deployed in automotive infotainment head units, telematics modules, and display interfaces where ESD protection for USB, HDMI, and camera links is required. For ASIL-B or higher safety-critical domains, system-level validation per ISO 10605 and vehicle-specific EMC testing remains the responsibility of the end designer - but the TPD4E002DRL2 itself provides the foundational ±15-kV ESD immunity needed in those environments.
How does the TPD4E002DRL2 compare to discrete TVS diodes in terms of PCB layout?
The TPD4E002DRL2 reduces PCB area by over 60% compared to four discrete 0402 TVS diodes plus associated routing and ground vias. Its SOT-5X3 (DRL) package places all five terminals - IO1, GND, IO2, IO3, IO4 - in a compact 1.60 mm × 1.20 mm footprint with optimized pinout for straight-line routing from connector to protected IC. Layout guidelines emphasize placing the TPD4E002DRL2 adjacent to the I/O connector with short, direct traces and stitching vias near the GND pin to minimize inductance - a requirement more easily met than with discrete solutions requiring individual ground paths and spacing for thermal relief.
TPD4E002DRL2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- SOT-553
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 4
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 3V
- Voltage - Breakdown (Min):
- 6.1V
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- -
- Power - Peak Pulse:
- 35W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-5
TPD4E002DRL2 FAQ
1.How can I place an order for TPD4E002DRL2 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPD4E002DRL2 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TPD4E002DRL2 reliable?
The price and inventory of TPD4E002DRL2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPD4E002DRL2 is usually 5 days.
3.What payment methods are accepted for TPD4E002DRL2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPD4E002DRL2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPD4E002DRL2?
TPD4E002DRL2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPD4E002DRL2 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TPD4E002DRL2?
For technical support, including TPD4E002DRL2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPD4E002DRL2 requirements.
6.How does Aetrix verify that TPD4E002DRL2 is sourced from the original manufacturer or authorized distributors?
All TPD4E002DRL2 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TPD4E002DRL2 meets industry standards.
7.What is the process for return or replacement of TPD4E002DRL2?
All TPD4E002DRL2 units undergo pre-shipment inspection (PSI). If there is an issue with TPD4E002DRL2, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TPD4E002DRL2 part is unused and in its original packaging.
Return procedure for TPD4E002DRL2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPD4E002DRL2 Tags

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