Texas Instruments TPD1E1B04DPYR
- Part No.:
- TPD1E1B04DPYR
- Manufacturer:
- Texas Instruments
- Category:
- TVS Diodes
- Package:
- 0402 (1006 Metric)
- Datasheet:
-
TPD1E1B04DPYR.pdf
- Description:
- TVS DIODE 3.6VWM 8.5VC 2X1SON
- Quantity:
- Payment:

- Shipping:

Inventory:47,165
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Product details
Overview
TPD1E1B04DPYR from Texas Instruments is a bidirectional TVS ESD protection diode in X1SON (DPY) 2-pin package, rated for ±30-kV IEC 61000-4-2 contact/air-gap discharge, 1-pF typical IO capacitance, 8.5-V clamping voltage at 16-A TLP, and 0.15-Ω dynamic resistance - deployed on USB 2.0 D+/D− lines to safeguard transceivers from electrostatic events.
For engineers reviewing the TPD1E1B04DPYR datasheet, TPD1E1B04DPYR pinout, TPD1E1B04DPYR application, or TPD1E1B04DPYR equivalent, key selection criteria include ultra-low clamping voltage under high-current transients, sub-1.3-pF max line capacitance for 480-Mbps signal integrity, industrial −40°C to +125°C operation, and compatibility with compact 0402-layout-constrained PCBs.
Technical Context
The TPD1E1B04DPYR operates as a passive, bidirectional clamping device triggered by voltage excursions beyond ±6.4-V DC breakdown, diverting ESD current to GND via low-RDYN silicon avalanche structure. Its symmetrical I/O-to-GND architecture supports both positive and negative transient suppression without polarity constraints.
It meets IEC 61000-4-2 Level 4 (±30-kV), IEC 61000-4-4 (80-A EFT), and IEC 61000-4-5 (6.3-A surge) standards while maintaining ≤100-nA leakage at ±2.5-V bias and −3.6-V to +3.6-V recommended operating range - enabling direct integration into high-speed data paths like USB 2.0 without signal degradation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ESD Rating (IEC 61000-4-2) | ±30-kV contact & air-gap discharge - ensures robust system-level immunity against human-hand ESD events. |
| Clamping Voltage | 8.5 V at 16-A TLP - limits voltage seen by protected IC during worst-case ESD strike. |
| IO Capacitance | 1 pF typical - preserves signal integrity up to 240 MHz, compatible with USB 2.0 full-speed and high-speed data rates. |
| Dynamic Resistance | 0.15 Ω - minimizes voltage overshoot during fast transient conduction, enhancing protection margin. |
| DC Breakdown Voltage | ±6.4 V typical - provides safe margin above USB 2.0 signal swing (±3.6 V) while avoiding false triggering. |
| Leakage Current | ≤100 nA at ±2.5 V - prevents loading of low-power I/O pins and maintains battery-life-critical standby performance. |
| Operating Temperature | −40°C to +125°C - supports deployment in automotive infotainment, industrial USB peripherals, and ruggedized consumer devices. |
Pinout & Package
TPD1E1B04DPYR uses the X1SON (DPY) 2-pin no-lead package measuring 0.60 mm × 1.00 mm × 0.45 mm max height, optimized for flow-through routing and minimal PCB real estate. The symmetrical pinout enables flexible placement on differential signal pairs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | I/O | Bidirectional ESD-protected channel; connects to signal line (e.g., USB D+ or D−); requires external GND connection on Pin 2. |
| Pin 2 | GND | Common ground reference for clamping; must be connected to low-impedance system ground plane to ensure effective transient diversion. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low clamping voltage | 8.5 V at 16-A TLP ensures protected ICs remain within absolute maximum ratings during severe ESD events. |
| Low dynamic resistance | 0.15 Ω reduces IR drop across the device during conduction, improving clamping precision and energy handling. |
| Minimal signal loading | 1-pF typical capacitance avoids insertion loss or timing skew on 480-Mbps USB 2.0 differential pairs. |
| Industrial temperature range | −40°C to +125°C operation supports use in automotive cabins, factory-floor equipment, and outdoor-connected devices. |
| Standard 0402 footprint | X1SON DPY package enables drop-in replacement in space-constrained layouts without redesigning land patterns. |
Applications
| USB 2.0 Interface Protection | GPIO Signal Line Protection |
|---|---|
Use Scenario: Placed between USB connector and transceiver IC on D+ and D− lines to suppress ESD from user plugging/unplugging. IC Role / Device Role / Timing Role: Passive bidirectional clamping diode that activates only during overvoltage transients, remaining transparent during normal 480-Mbps data transmission. Use Value: Prevents latch-up or permanent damage to USB PHY while maintaining <0.5-dB insertion loss at 240 MHz due to 1-pF capacitance. | Use Scenario: Installed on microcontroller GPIOs connected to pushbuttons, sliders, or external sensors exposed to handling. IC Role / Device Role / Timing Role: Low-leakage (≤100 nA) ESD shunt that avoids DC loading of high-impedance input pins while responding in <1 ns to transients. Use Value: Enables reliable button debounce and sensor readout in wearables and handhelds without compromising battery runtime. |
| Audio Jack ESD Suppression | EPOS Peripheral Port Protection |
Use Scenario: Applied across stereo headphone/mic jack contacts to prevent pop-noise and amplifier damage from user-induced static discharge. IC Role / Device Role / Timing Role: Symmetrical bidirectional clamp protecting both tip/ring/sleeve paths with matched clamping behavior on all channels. Use Value: Eliminates audible clicks and protects Class-D audio amplifiers by limiting transient voltage to ≤8.5 V at peak currents up to 16 A. | Use Scenario: Integrated into USB-C or legacy USB ports of electronic point-of-sale terminals to withstand repeated cashier-hand ESD exposure. IC Role / Device Role / Timing Role: High-reliability ESD guard for payment interface ICs operating in retail environments with frequent cable mating cycles. Use Value: Extends field lifetime beyond 50,000 plug/unplug cycles while meeting IEC 61000-4-2 Level 4 compliance for safety-certified deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESD5Z3.3T5G | Higher 12-V clamping at 16-A TLP; 17-pF capacitance - unsuitable for >10-MHz signals. | Limited to low-speed interfaces (I²C, buttons); not viable for USB 2.0 or audio. | Select only when cost sensitivity outweighs signal bandwidth requirements and clamping margin is secondary. |
| SP1001-01UTG | 0.6-pF capacitance but lower ±20-kV IEC rating; 10.5-V clamping at 16-A TLP. | Acceptable for USB 2.0 but offers reduced ESD margin; requires tighter layout control for same protection level. | Choose when ultra-low capacitance is critical and system-level testing confirms adequate immunity at ±20-kV. |
Compared with ESD5Z3.3T5G and SP1001-01UTG, TPD1E1B04DPYR delivers superior balance of low clamping (8.5 V), minimal capacitance (1 pF), and full ±30-kV IEC 61000-4-2 compliance - making it the preferred choice for high-speed, high-reliability USB and audio interfaces where signal fidelity and robustness are jointly required.
Availability
TPD1E1B04DPYR is available at Aetrix Electronics and suitable for USB 2.0 interface protection, wearable device I/O hardening, and industrial peripheral port safeguarding requiring stable component supply across multi-year production cycles.
Supply support for TPD1E1B04DPYR 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 delivering analog and embedded processing solutions, with leadership in precision analog, power management, and signal chain technologies.
The TPD1E1B04DPYR belongs to TI's ESD protection diode portfolio, engineered specifically for high-speed digital interfaces demanding ultra-low capacitance, low clamping, and industry-standard small-outline packaging.
FAQ
What is the primary function of the TPD1E1B04DPYR in circuit design?
The TPD1E1B04DPYR serves as a bidirectional ESD protection diode that clamps transient voltages on high-speed signal lines-such as USB 2.0 D+/D−-to safe levels during electrostatic discharge events. It operates passively, activating only when voltage exceeds ±6.4 V, and diverts surge current to ground via its ultra-low 0.15-Ω dynamic resistance. Its 1-pF capacitance ensures minimal impact on signal integrity, making TPD1E1B04DPYR ideal for protecting sensitive transceivers without degrading data rates.
Does the TPD1E1B04DPYR require any external bias or power supply?
No, the TPD1E1B04DPYR is a fully passive device and does not require any external power supply or bias circuitry. It functions solely through its internal silicon avalanche structure, which triggers automatically when transient voltages exceed its breakdown threshold. Designers must ensure the protected signal remains within the recommended operating range of −3.6 V to +3.6 V to avoid unintended conduction; no additional components like resistors or capacitors are needed for basic ESD protection functionality of TPD1E1B04DPYR.
Can the TPD1E1B04DPYR be used for USB 3.0 or higher-speed interfaces?
No, the TPD1E1B04DPYR is not suitable for USB 3.0 (5 Gbps) or higher-speed interfaces. Its 1-pF typical capacitance and associated insertion loss profile are validated only for USB 2.0 (480 Mbps) and lower-frequency applications such as GPIO, audio, or buttons. USB 3.0 requires sub-0.3-pF capacitance and specialized differential ESD structures to maintain signal integrity at 2.5 GHz fundamental frequency; using TPD1E1B04DPYR on SuperSpeed lanes would cause unacceptable jitter and eye closure. For those applications, TI recommends dedicated USB 3.x ESD solutions like TPD4S012.
What is the significance of the "DPYR" suffix in TPD1E1B04DPYR?
"DPYR" denotes the specific packaging and reel configuration of the TPD1E1B04DPYR: DPY refers to the X1SON 2-pin no-lead package (0.60 mm × 1.00 mm), and R indicates tape-and-reel packaging with 10,000 units per reel. This ordering variant is RoHS-compliant, features NiPdAu lead finish, and carries MSL Level-1 rating for unlimited floor life at ≤30°C/60% RH. The "R" suffix distinguishes it from sample variants (e.g., TPD1E1B04DPYT with 250-unit reels) and ensures consistent automated assembly compatibility - confirming that TPD1E1B04DPYR is optimized for high-volume SMT production.
How does the TPD1E1B04DPYR compare to multichannel ESD arrays like TPD2EUSB30?
The TPD1E1B04DPYR is a single-channel device intended for discrete protection of individual signal lines, whereas TPD2EUSB30 integrates dual-channel protection with additional features like VBUS monitoring and integrated 5-V tolerance. TPD1E1B04DPYR offers lower capacitance (1 pF vs. 1.3 pF per channel) and tighter clamping (8.5 V vs. 10.5 V at 16-A TLP), but lacks integrated power-path management. Use TPD1E1B04DPYR when optimizing for minimal signal loading on one pair (e.g., USB D+/D− separately) or when board space allows discrete placement; choose TPD2EUSB30 for consolidated protection of both data lines plus VBUS in compact USB Type-A/B designs - each variant serves distinct layout and functional priorities within the TPD1E1B04DPYR ecosystem.
TPD1E1B04DPYR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 0402 (1006 Metric)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 3.6V (Max)
- Voltage - Breakdown (Min):
- 6.4V (Typ)
- Voltage - Clamping (Max) @ Ipp:
- 8.5V (Typ)
- Current - Peak Pulse (10/1000µs):
- 6.3A (8/20µs)
- Power - Peak Pulse:
- 50W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 1pF @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 2-X1SON (1x.60)
TPD1E1B04DPYR FAQ
1.How can I place an order for TPD1E1B04DPYR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPD1E1B04DPYR 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 TPD1E1B04DPYR reliable?
The price and inventory of TPD1E1B04DPYR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPD1E1B04DPYR is usually 5 days.
3.What payment methods are accepted for TPD1E1B04DPYR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPD1E1B04DPYR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPD1E1B04DPYR?
TPD1E1B04DPYR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPD1E1B04DPYR 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 TPD1E1B04DPYR?
For technical support, including TPD1E1B04DPYR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPD1E1B04DPYR requirements.
6.How does Aetrix verify that TPD1E1B04DPYR is sourced from the original manufacturer or authorized distributors?
All TPD1E1B04DPYR 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 TPD1E1B04DPYR meets industry standards.
7.What is the process for return or replacement of TPD1E1B04DPYR?
All TPD1E1B04DPYR units undergo pre-shipment inspection (PSI). If there is an issue with TPD1E1B04DPYR, 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 TPD1E1B04DPYR part is unused and in its original packaging.
Return procedure for TPD1E1B04DPYR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPD1E1B04DPYR Tags

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Diodes Incorporated

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Diodes Incorporated

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Diodes Incorporated

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Nexperia USA Inc.

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Toshiba Semiconductor and Storage

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Diodes Incorporated
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