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Taiwan Semiconductor Corporation P6KE6.8H
- Part No.:
- P6KE6.8H
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE6.8H.pdf
- Description:
- 600W, 6.8V, UNIDIRECTIONAL, TVS
- Quantity:
- Payment:
- Shipping:
Inventory:6,887
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Product details
Overview
P6KE6.8H from Taiwan Semiconductor is a unidirectional 600W transient voltage suppressor (TVS) diode designed for primary overvoltage protection in DC power rails and signal lines. It features a nominal breakdown voltage of 6.8V, clamps transients to ≤10.8V at 58A peak surge current, and delivers sub-1ps response time from 0V to VBR, making it suitable for automotive ECU power input protection per ISO 7637-2.
For engineers reviewing the P6KE6.8H datasheet, P6KE6.8H pinout, P6KE6.8H application, or P6KE6.8H equivalent, key selection criteria include its AEC-Q101 qualification, DO-204AC (DO-15) package compatibility with high-reliability automotive PCB layouts, 5.5V stand-off voltage margin above 5V logic rails, and 1000μA maximum leakage at 5.5V for low-power system standby integrity.
Technical Context
The P6KE6.8H operates as a silicon avalanche diode with unidirectional polarity, triggered when reverse voltage exceeds its 6.12–7.48V breakdown range at 10mA test current. Its clamping performance is defined by a maximum 10.8V VC at 58A IPP under 10/1000μs waveform, enabling robust suppression of load-dump and inductive switching spikes.
Thermal design relies on its 175°C maximum junction temperature and 5W steady-state power dissipation at 75°C ambient with 9.5mm lead length. The device meets UL 94V-0 flammability rating and JESD201 Class 2 whisker resistance, supporting long-term reliability in harsh automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min–max) | 6.12–7.48 V at 10 mA - ensures reliable triggering across process variation while maintaining margin above 5.5V VWM |
| VWM | 5.5 V - provides 0.5V headroom above standard 5V supply rails to prevent false conduction during normal operation |
| VC @ IPP | 10.8 V at 58 A - limits downstream IC stress to safe levels during 600W transient events |
| IR @ VWM | <1000 μA - minimizes standby current drain in battery-powered systems |
| PPK | 600 W at 10/1000μs - handles automotive load-dump pulses without degradation |
| TJ(max) | 175 °C - supports operation in under-hood environments with minimal derating |
| Package | DO-204AC (DO-15) - industry-standard through-hole package with 0.400g mass and tin-plated leads per J-STD-002 |
Pinout & Package
DO-204AC (DO-15) package: axial-leaded, epoxy-molded case with cathode band marking for unidirectional polarity. Leads are pure tin-plated and solderable per J-STD-002; weight ≈ 0.400 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Ground reference terminal | Connected to system ground or low-side return path; carries full surge current during clamping |
| Cathode | Protected line input | Connected to protected node (e.g., 5V rail input); reverse-biased during normal operation, avalanches during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and mechanical shock per AEC specification |
| 600W peak pulse power | Withstands ISO 7637-2 Pulse 5a (load dump) without parametric shift or failure |
| Sub-1ps response time | Enables protection of fast-edge digital interfaces before voltage overshoot damages CMOS inputs |
| UL 94V-0 flammability rating | Epoxy molding compound prevents flame propagation in enclosed automotive enclosures |
| Halogen-free construction | Complies with IEC 61249-2-21 for RoHS-compliant manufacturing and end-of-life processing |
Applications
| Automotive Power Input Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting microcontroller power pins against load-dump transients in vehicle body control modules. IC Role / Device Role / Timing Role: Primary clamping device placed between battery feed and LDO input, absorbing >95% of 600W surge energy. Use Value: Limits voltage seen by downstream 5V LDO to ≤10.8V, preventing latch-up or gate oxide rupture in connected MCU. | Use Scenario: Safeguarding analog sensor outputs (e.g., 4–20mA loop transmitters) from ESD and cable discharge events. IC Role / Device Role / Timing Role: Bidirectional-capable TVS (via P6KE6.8CA variant) placed at connector interface to shunt fast transients before reaching op-amp input stage. Use Value: Clamps ±15kV contact ESD (IEC 61000-4-2) to <20V within 1ns, preserving ADC accuracy and avoiding reset events. |
| LED Driver Overvoltage Clamp | USB Port VBUS Line Protection |
Use Scenario: Preventing catastrophic failure of constant-current LED drivers during 12V rail surges in automotive lighting systems. IC Role / Device Role / Timing Role: Unidirectional TVS mounted directly across driver IC supply pins to clamp positive-going transients only. Use Value: Maintains VWM = 5.5V margin below 6.8V nominal, ensuring no conduction during PWM dimming while clamping 100V spikes to 10.8V. | Use Scenario: Adding secondary overvoltage protection on USB Type-A VBUS line in industrial docking stations. IC Role / Device Role / Timing Role: Standoff-rated TVS placed upstream of USB power switch to absorb hot-plug inrush and external fault injection. Use Value: Withstands 500V/10μs fast transients (IEC 61000-4-5) with <10.8V clamping, protecting USB PD controller from overvoltage lockout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.8A | Surface-mount SMB package (vs. through-hole DO-15); same 6.8V nominal, but 600W rating at 10/1000μs and 10.5V clamping at 60A | Requires PCB redesign for SMT assembly; better thermal performance in compact layouts but lacks axial mechanical robustness | Select SMBJ6.8A for space-constrained designs where automated placement and higher board density are prioritized over serviceability |
| 1.5KE6.8A | Same DO-204AC package but rated for 1500W peak power; higher 10.5V clamping voltage at 123A IPP and 1000μA leakage at 5.8V VWM | Over-specified for 600W use cases; introduces unnecessary cost and larger footprint without benefit for typical automotive loads | Select 1.5KE6.8A only when legacy 1.5kW surge immunity (e.g., MIL-STD-1275) is mandated and board space permits |
Compared with SMBJ6.8A and 1.5KE6.8A, the P6KE6.8H offers optimal balance of AEC-Q101 compliance, through-hole serviceability, and precise 600W/10.8V clamping for mainstream automotive power rail protection-without over-engineering or SMT conversion overhead.
Availability
P6KE6.8H is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, and LED driver circuits requiring stable component supply with AEC-Q101 assurance and long-lifecycle support.
Supply support for P6KE6.8H 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated semiconductor manufacturer specializing in discrete power devices, TVS diodes, rectifiers, and MOSFETs for automotive, industrial, and consumer markets.
The P6KE series belongs to TSC's AEC-Q101-qualified transient suppression portfolio, engineered specifically for robust front-end protection in automotive ECUs, body electronics, and infotainment power supplies.
FAQ
What is the maximum clamping voltage of the P6KE6.8H under standard test conditions?
The P6KE6.8H has a maximum clamping voltage (VC) of 10.8 V at 58 A peak pulse current (IPP) under the 10/1000μs waveform per IEC 61000-4-5. This value is measured with specified test conditions and guarantees that downstream circuitry will not experience voltages exceeding 10.8 V during a 600W transient event, directly protecting sensitive 5V logic components connected to the P6KE6.8H.
Is the P6KE6.8H suitable for bidirectional transient suppression?
No, the P6KE6.8H is a unidirectional TVS diode intended for DC line protection with defined anode–cathode polarity. For bidirectional applications such as AC lines or data bus protection, the P6KE6.8CA variant must be used instead. The P6KE6.8H's cathode band marking indicates polarity, and reverse connection would result in forward conduction and failure during normal operation.
Does the P6KE6.8H meet automotive qualification standards?
Yes, the "H" suffix in P6KE6.8H explicitly denotes AEC-Q101 qualification per Taiwan Semiconductor's ordering nomenclature. This includes stress testing for temperature cycling, high-temperature reverse bias (HTRB), and mechanical shock, confirming suitability for under-hood and chassis-mounted automotive applications where reliability under thermal and vibration stress is critical for the P6KE6.8H.
What is the standoff voltage (VWM) of the P6KE6.8H, and why does it matter?
The P6KE6.8H has a maximum standoff voltage (VWM) of 5.5 V, meaning it remains non-conductive up to this voltage during normal operation. This 0.5 V margin above standard 5 V supply rails prevents leakage-induced power loss or false triggering while ensuring immediate avalanche response once transients exceed 6.12 V (VBR min), making the P6KE6.8H ideal for stable 5 V system protection.
How does the DO-204AC (DO-15) package of the P6KE6.8H impact thermal performance?
The DO-204AC (DO-15) package of the P6KE6.8H supports 5 W steady-state power dissipation at 75°C ambient when mounted with 9.5 mm lead lengths on 5 × 5 mm copper pads. Its axial-leaded construction enables manual rework and mechanical strain relief in high-vibration environments, though thermal resistance is higher than SMT alternatives-requiring careful layout with adequate copper pour to maintain P6KE6.8H junction temperature below 175°C during repeated surges.
P6KE6.8H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- P6KE
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5.5V
- Voltage - Breakdown (Min):
- 6.12V
- Voltage - Clamping (Max) @ Ipp:
- 10.8V
- Current - Peak Pulse (10/1000µs):
- 58A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
P6KE6.8H FAQ
1.How can I place an order for P6KE6.8H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE6.8H 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 P6KE6.8H reliable?
The price and inventory of P6KE6.8H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE6.8H is usually 5 days.
3.What payment methods are accepted for P6KE6.8H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE6.8H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE6.8H?
P6KE6.8H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE6.8H 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 P6KE6.8H?
For technical support, including P6KE6.8H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE6.8H requirements.
6.How does Aetrix verify that P6KE6.8H is sourced from the original manufacturer or authorized distributors?
All P6KE6.8H 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 P6KE6.8H meets industry standards.
7.What is the process for return or replacement of P6KE6.8H?
All P6KE6.8H units undergo pre-shipment inspection (PSI). If there is an issue with P6KE6.8H, 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 P6KE6.8H part is unused and in its original packaging.
Return procedure for P6KE6.8H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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