Texas Instruments TPD4E1U06DCKR
- Part No.:
- TPD4E1U06DCKR
- Manufacturer:
- Texas Instruments
- Category:
- TVS Diodes
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
TPD4E1U06DCKR.pdf
- Description:
- TVS DIODE 5.5VWM 15VC SC70-6
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
TPD4E1U06DCKR from Texas Instruments is a quad-channel unidirectional TVS diode array for high-speed data line ESD protection, featuring 0.8 pF typical I/O capacitance, ±15-kV IEC 61000-4-2 contact/air-gap ESD rating, and 6.5 V minimum DC breakdown voltage - deployed in USB 2.0 port protection at the connector interface.
For engineers reviewing the TPD4E1U06DCKR datasheet, TPD4E1U06DCKR pinout, TPD4E1U06DCKR application, or TPD4E1U06DCKR equivalent, key selection criteria include ultra-low capacitance for signal integrity, industrial temperature range (–40°C to +125°C), IEC-compliant surge/EFT/ESD immunity, and SC70 package compatibility with high-density USB layout constraints.
Technical Context
The TPD4E1U06DCKR implements four independent unidirectional TVS clamps between I/O pins and GND, each with 6.5 V minimum breakdown and dynamic resistance of 1.0 Ω (I/O-to-GND) / 0.6 Ω (GND-to-I/O). It operates passively without bias, triggering only during overvoltage transients above VBR or below forward diode drop.
Its architecture supports simultaneous protection of differential pairs (e.g., D+/D−) with channel-to-channel crosstalk capacitance as low as 0.006 pF (DCK package), enabling use on 480-Mbps USB 2.0 signals while maintaining <0.5 dB insertion loss up to 240 MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ESD Rating (IEC 61000-4-2) | ±15 kV contact & air-gap - meets Level 4 immunity for handheld interface ports |
| I/O Capacitance | 0.8 pF typical - preserves USB 2.0 signal integrity with minimal rise-time degradation |
| DC Breakdown Voltage | 6.5 V min - ensures robust protection margin above 5.5 V USB VBUS and signal swing |
| Clamp Voltage (1 A) | 11 V max - limits transient stress on downstream PHY ICs during ESD events |
| Leakage Current | 10 nA max at 2.5 V - avoids loading of high-impedance data lines or pull-up resistors |
| Surge Rating (IEC 61000-4-5) | 3 A (8/20 μs) - withstands lightning-induced surges in industrial USB host applications |
| EFT Rating (IEC 61000-4-4) | 80 A (5/50 ns) - suppresses fast bursts from switching noise in embedded systems |
Pinout & Package
TPD4E1U06DCKR uses the 6-pin SC70 (DCK) package (2.00 mm × 1.25 mm, 1.1 mm max height), optimized for compact routing near USB connectors. Pin 1 (D1+) and Pin 6 (D1−) form one protected differential pair; Pin 3 (D2+) and Pin 4 (D2−) form the second. Pin 2 is GND; Pin 5 is NC (no connect).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| D1+ | I/O protection channel 1 anode | Connect directly to USB D+ trace adjacent to connector; clamps positive transients to GND |
| GND | Common reference terminal | Must be low-inductance connection to system ground plane; serves as return path for all clamping currents |
| D2+ | I/O protection channel 2 anode | Used for second USB port or auxiliary high-speed line (e.g., HDMI DDC); identical electrical behavior to D1+ |
| D1− | I/O protection channel 1 cathode | Connect to USB D−; handles negative ESD strikes via forward conduction to GND |
| NC | No-connect terminal | May be left floating, grounded, or tied to VCC per layout needs; no internal connection |
| D2− | I/O protection channel 2 cathode | Paired with D2+ for dual-port or MIPI/LVDS protection; shares same clamping characteristics as D1− |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low 0.8-pF I/O capacitance | Enables full-speed USB 2.0 (480 Mbps) compliance without signal distortion or timing skew |
| ±15-kV IEC 61000-4-2 ESD immunity | Guarantees robustness against human-body discharges in consumer and industrial USB peripherals |
| 11-V clamp voltage at 1-A ESD current | Keeps protected PHY ICs within safe operating voltage during transient events |
| Industrial –40°C to +125°C operation | Supports deployment in automotive infotainment head units and ruggedized industrial docking stations |
| SC70 footprint with 0.65-mm pitch | Facilitates automated placement and routing in space-constrained portable device PCBs |
Applications
| USB 2.0 Host Port Protection | HDMI DDC Line Protection |
|---|---|
|
Use Scenario: Protecting upstream USB 2.0 ports on industrial PCs and medical displays from user-handling ESD. IC Role / Device Role / Timing Role: Passive TVS clamp placed between USB connector and USB transceiver PHY, triggered only during transients. Use Value: Prevents latch-up or damage to the USB PHY IC while maintaining 480-Mbps eye diagram integrity due to 0.8-pF capacitance. |
Use Scenario: Safeguarding HDMI Display Data Channel (DDC) lines in AV receivers and set-top boxes. IC Role / Device Role / Timing Role: Unidirectional ESD suppressor on bidirectional I²C-based DDC bus (clock/data), referenced to system GND. Use Value: Blocks ±15-kV contact discharges without distorting 100-kHz DDC clock edges or increasing bus leakage beyond 10 nA. |
| MIPI D-PHY Lane Protection | LVDS Interface Protection |
|
Use Scenario: Shielding camera module MIPI D-PHY data lanes in automotive ADAS cameras exposed to cabin ESD. IC Role / Device Role / Timing Role: Quad-channel TVS array protecting two differential D-PHY lanes (CLK+/CLK−, DATA+/DATA−) simultaneously. Use Value: Maintains sub-ns edge fidelity at 1.5 Gbps with <0.025 pF inter-channel capacitance variation, preventing bit errors. |
Use Scenario: Securing LVDS video links in factory automation HMIs where cable disconnects induce fast transients. IC Role / Device Role / Timing Role: Low-capacitance ESD shunt on LVDS differential pairs, leveraging symmetric unidirectional clamping. Use Value: Delivers 3-A surge immunity (8/20 µs) without degrading common-mode rejection or adding jitter to 650-Mbps streams. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPD4E05U06DCKR | 0.5 pF typical capacitance; lower 5.5 V breakdown voltage; same SC70 package | Better suited for 5-Gbps USB 3.2 Gen 1 where lower capacitance is critical; less margin for 5.5-V tolerant interfaces | Select when prioritizing ultra-low capacitance over higher breakdown voltage margin |
| SZ1.5SMF12A | Single-channel, 12-V standoff, 1500-W peak pulse power, SOD-123 package | Higher power handling but 10× larger capacitance (~10 pF); unsuitable for USB 2.0 data lines | Use only for low-speed, high-energy surge protection (e.g., VBUS line), not signal-line ESD |
Compared with TPD4E1U06DCKR, TPD4E05U06DCKR offers tighter signal integrity at the cost of reduced overvoltage margin, while SZ1.5SMF12A provides superior surge energy handling but fails USB 2.0 bandwidth requirements due to excessive capacitance.
Availability
TPD4E1U06DCKR is available at Aetrix Electronics and suitable for USB 2.0 interface protection, HDMI DDC safeguarding, and MIPI D-PHY lane hardening requiring stable component supply across production lifecycles.
Supply support for TPD4E1U06DCKR 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 high-reliability components for industrial, automotive, and communications markets.
The TPD4E1U06DCKR belongs to TI's ESD protection portfolio designed specifically for high-speed digital interfaces - balancing ultra-low capacitance, IEC-compliant transient immunity, and compact packaging for next-generation portable and embedded systems.
FAQ
What is the primary function of the TPD4E1U06DCKR in a USB 2.0 design?
The TPD4E1U06DCKR functions as a quad-channel unidirectional TVS diode array that protects USB 2.0 D+ and D− signal lines from electrostatic discharge events. It clamps transients to ground before they reach the USB transceiver, using its 0.8-pF capacitance and ±15-kV IEC 61000-4-2 rating to preserve signal integrity while ensuring robust immunity. The TPD4E1U06DCKR is placed directly at the USB connector for optimal protection efficacy.
Does the TPD4E1U06DCKR require external power or biasing to operate?
No, the TPD4E1U06DCKR is a passive ESD protection device with no power pins or bias requirements. It operates solely through its internal diode structure, triggering only when voltage exceeds the 6.5-V minimum breakdown threshold or drops below the forward diode drop. This eliminates design complexity and ensures fail-safe operation across all operating conditions for the TPD4E1U06DCKR.
Can the NC pin (Pin 5) of the TPD4E1U06DCKR be connected to VCC or left floating?
Yes - Pin 5 (NC) of the TPD4E1U06DCKR has no internal connection and may be left floating, grounded, or tied to VCC based on PCB layout convenience or thermal considerations. TI documentation explicitly states this flexibility, and no electrical performance impact occurs regardless of NC pin termination, making it adaptable to varied board stack-ups and grounding schemes for the TPD4E1U06DCKR.
How does the TPD4E1U06DCKR compare to standard bi-directional TVS diodes for USB protection?
The TPD4E1U06DCKR uses unidirectional clamping optimized for data lines referenced to ground, offering lower capacitance (0.8 pF vs. ≥3 pF for many bi-directional parts) and tighter clamping voltage (11 V at 1 A). Its architecture avoids reverse-bias leakage issues common in bi-directional devices, making it preferred for high-speed USB 2.0 where signal fidelity and low leakage (<10 nA) are critical - unlike generic bi-directional TVS parts not validated for 480-Mbps operation.
Is the TPD4E1U06DCKR compatible with automated optical inspection (AOI) and reflow processes?
Yes - the TPD4E1U06DCKR is qualified for standard SMT assembly, including lead-free reflow (MSL Level-1, peak 260°C) and AOI. Its SC70 package features clearly defined solder mask openings and land patterns compliant with IPC-7351, and TI provides verified stencil designs and board layout guidelines. These ensure reliable solder joint formation and post-reflow inspection capability for high-yield manufacturing of assemblies using the TPD4E1U06DCKR.
TPD4E1U06DCKR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Steering (Rail to Rail)
- Unidirectional Channels:
- 4
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5.5V (Max)
- Voltage - Breakdown (Min):
- 6.5V
- Voltage - Clamping (Max) @ Ipp:
- 15V (Typ)
- Current - Peak Pulse (10/1000µs):
- 3A (8/20µs)
- Power - Peak Pulse:
- 45W
- Power Line Protection:
- Yes
- Applications:
- Ethernet, HDMI
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-6
TPD4E1U06DCKR FAQ
1.How can I place an order for TPD4E1U06DCKR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPD4E1U06DCKR 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 TPD4E1U06DCKR reliable?
The price and inventory of TPD4E1U06DCKR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPD4E1U06DCKR is usually 5 days.
3.What payment methods are accepted for TPD4E1U06DCKR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPD4E1U06DCKR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPD4E1U06DCKR?
TPD4E1U06DCKR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPD4E1U06DCKR 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 TPD4E1U06DCKR?
For technical support, including TPD4E1U06DCKR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPD4E1U06DCKR requirements.
6.How does Aetrix verify that TPD4E1U06DCKR is sourced from the original manufacturer or authorized distributors?
All TPD4E1U06DCKR 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 TPD4E1U06DCKR meets industry standards.
7.What is the process for return or replacement of TPD4E1U06DCKR?
All TPD4E1U06DCKR units undergo pre-shipment inspection (PSI). If there is an issue with TPD4E1U06DCKR, 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 TPD4E1U06DCKR part is unused and in its original packaging.
Return procedure for TPD4E1U06DCKR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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