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Taiwan Semiconductor Corporation P6KE400C
- Part No.:
- P6KE400C
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE400C.pdf
- Description:
- 600W, 400V, BIDIRECTIONAL, TVS
- Quantity:
- Payment:
- Shipping:
Inventory:3,219
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Product details
Overview
P6KE400C from Taiwan Semiconductor is a unidirectional 600W transient voltage suppressor (TVS) diode designed for high-energy surge protection in DC power rails and signal lines. It features a 400V nominal standoff voltage (VWM = 324V), 360–440V breakdown range (VBR), 574V maximum clamping voltage at 1.0A peak pulse current, and DO-204AC (DO-15) axial package - deployed in industrial power supplies and automotive ECU input protection.
For engineers reviewing the P6KE400C datasheet, P6KE400C pinout, P6KE400C application, or P6KE400C equivalent, key selection criteria include clamping voltage margin vs. protected IC VMAX, 10/1000μs surge rating compliance, unidirectional polarity marking, thermal derating above 25°C, and AEC-Q101 qualification status for automotive use cases.
Technical Context
The P6KE400C operates as a silicon avalanche diode with fast response (<1.0 ps from 0 V to VBR) and low dynamic impedance, enabling effective suppression of ESD and lightning-induced transients. Its unidirectional configuration provides forward conduction capability up to 100A IFSM while maintaining <1 μA reverse leakage above 10V.
Thermal performance is defined by a 175°C maximum junction temperature and derated peak power dissipation above 25°C ambient per Fig.2. The device meets UL 94V-0 flammability and JESD201 Class 2 whisker resistance standards, with pure tin-plated leads compliant to J-STD-002 solderability requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 324 V - Maximum continuous reverse operating voltage before significant leakage; sets upper limit for protected circuit DC rail |
| VBR (min/max) | 360 V / 440 V - Breakdown occurs within this range at 1 mA test current; defines threshold for avalanche conduction |
| VC @ IPP | 574 V - Clamped voltage at 1.0 A 10/1000μs surge; determines worst-case overvoltage seen by downstream components |
| PPK | 600 W - Non-repetitive peak pulse power handling at 10/1000μs waveform; defines single-event surge robustness |
| IR @ VWM | <1 μA - Reverse leakage at rated standoff voltage; ensures minimal power loss and signal integrity in high-impedance circuits |
| TJ(max) | 175 °C - Maximum junction temperature; governs thermal design margin and PCB copper pad sizing per JEDEC 51-3 |
| Package | DO-204AC (DO-15) - Axial-leaded, through-hole package with 0.400 g mass; requires standard lead-forming and wave-solder process |
Pinout & Package
DO-204AC (DO-15) axial package with cathode band marking for unidirectional polarity. Leads are pure tin-plated, solderable per J-STD-002, and meet JESD201 Class 2 whisker resistance. Case molding compound complies with UL 94V-0.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connects to lower-potential side of protected line; conducts during positive surges when cathode is at higher potential |
| Cathode | Avalanche conduction terminal | Marked with band; connects to higher-potential side; initiates clamping when reverse voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| 600W 10/1000μs surge rating | Enables protection against IEC 61000-4-5 Level 4 (4 kV) surges without degradation in single-event testing |
| <1.0 ps response time | Clamps transients before sensitive logic or analog circuitry experiences damaging overvoltage |
| <1 μA leakage @ VWM | Minimizes standby power loss and avoids false triggering in high-impedance sensor or bias networks |
| UL 94V-0 flammability rating | Ensures package material self-extinguishes under fault conditions, meeting safety-critical system requirements |
| AEC-Q101 qualified option (P6KE400CH) | Validated for automotive under-hood applications with extended temperature cycling and mechanical shock testing |
Applications
| Industrial Power Supply Input Protection | Automotive Body Control Module (BCM) Inputs |
|---|---|
Use Scenario: 400V DC bus in industrial SMPS exposed to load dump and inductive switching transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed across input capacitor to clamp surges before they reach rectifier and controller ICs. Use Value: Limits transient voltage to ≤574V, preserving 600V-rated electrolytic capacitors and MOSFETs with 650V VDSS. | Use Scenario: LIN or CAN physical layer inputs in BCM subjected to ISO 7637-2 Pulse 1/2a/5a transients. IC Role / Device Role / Timing Role: Front-end protection device on supply and signal lines, absorbing energy before transceiver ESD structures. Use Value: Withstands 10/1000μs 100V pulses at 50Ω source impedance while maintaining <1 μA leakage at 13.5V nominal battery. |
| Telecom AC/DC Adapter Surge Protection | Renewable Energy Inverter DC Link Protection |
Use Scenario: Secondary-side 324V DC output of telecom adapter subject to lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Standoff-clamp TVS between output rail and chassis ground to divert surge current away from DC-DC controllers. Use Value: Clamps to 574V within 1 ps, preventing latch-up or gate oxide rupture in synchronous rectifier drivers. | Use Scenario: 400V DC link in solar string inverters experiencing grid-switching transients and PV array arcing events. IC Role / Device Role / Timing Role: Parallel-connected TVS across DC bus capacitors to suppress overshoot during rapid IGBT turn-off. Use Value: Absorbs 600W peak energy without thermal runaway, extending capacitor lifetime and avoiding overvoltage trips. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ400A | Same 400V VWM, 574V VC, but SMA package (surface-mount); 400W rating vs. 600W | Requires PCB rework for SMT assembly; unsuitable for high-energy 10/1000μs events exceeding 400W | Select only if space-constrained layout and surge energy is confirmed ≤400W |
| ON Semiconductor 1.5KE400A | Same DO-15 package, 400V VWM, 574V VC, but 1500W rating; higher IPP (2.6A vs. 1.0A) | Over-spec'd for most 600W-class systems; larger junction capacitance may affect high-speed signal lines | Prefer where legacy 1.5KE footprint compatibility is required and higher surge margin is justified |
Compared with SMAJ400A and 1.5KE400A, the P6KE400C delivers optimal balance of 600W surge capacity, DO-15 through-hole reliability, and low-leakage operation - making it ideal for cost-sensitive industrial and automotive power rail protection where 10/1000μs compliance is mandatory.
Availability
P6KE400C is available at Aetrix Electronics and suitable for industrial power supplies, automotive body control modules, telecom adapters, and renewable energy inverters requiring stable component supply and long-term obsolescence management.
Supply support for P6KE400C 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 - headquartered in Hsinchu, Taiwan, with ISO/TS 16949 and ISO 14001 certifications.
The P6KE series was developed for high-reliability transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where AEC-Q101 qualification, UL recognition, and consistent 10/1000μs surge performance are critical.
FAQ
What is the polarity configuration of the P6KE400C?
The P6KE400C is a unidirectional TVS diode, with a clearly marked cathode band indicating the avalanche conduction terminal. When reverse-biased beyond its breakdown voltage (360–440V), it clamps transients by conducting from cathode to anode. Forward conduction is supported up to 100A IFSM, making P6KE400C suitable for DC rail protection where polarity is fixed and known.
Does the P6KE400C meet AEC-Q101 qualification?
The base P6KE400C is not AEC-Q101 qualified; however, the variant P6KE400CH (with "H" suffix) is fully AEC-Q101 certified for automotive applications. This qualification includes temperature cycling, mechanical shock, and humidity testing per stress test conditions defined in the AEC standard - confirming P6KE400CH's suitability for under-hood ECUs and body electronics.
What is the maximum clamping voltage of the P6KE400C at rated surge current?
The P6KE400C has a maximum clamping voltage (VC) of 574 V at 1.0 A peak pulse current (IPP) under the standard 10/1000μs waveform. This value represents the worst-case voltage imposed on protected circuitry during a full-rated surge event and must be compared against the absolute maximum ratings of downstream components to ensure safe operation.
How does thermal derating affect the P6KE400C's surge capability above 25°C ambient?
The P6KE400C's 600W peak pulse power rating applies only at TA = 25°C. Above this temperature, power capability decreases linearly per the derating curve in Fig.2 - reaching ~400W at 75°C and ~200W at 125°C. Designers must apply this derating when specifying P6KE400C in enclosed or high-ambient environments to avoid thermal runaway during repeated surge events.
Can the P6KE400C be used in bidirectional configurations?
No - the P6KE400C is strictly unidirectional. For bidirectional protection, Taiwan Semiconductor offers the P6KE400CA variant (with "CA" suffix), which features symmetrical breakdown characteristics in both directions. Using P6KE400C in reverse-biased AC applications risks failure due to lack of forward conduction capability in the reverse direction.
P6KE400C 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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 324V
- Voltage - Breakdown (Min):
- 360V
- Voltage - Clamping (Max) @ Ipp:
- 574V
- Current - Peak Pulse (10/1000µs):
- 1A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
P6KE400C FAQ
1.How can I place an order for P6KE400C through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE400C 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 P6KE400C reliable?
The price and inventory of P6KE400C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE400C is usually 5 days.
3.What payment methods are accepted for P6KE400C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE400C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE400C?
P6KE400C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE400C 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 P6KE400C?
For technical support, including P6KE400C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE400C requirements.
6.How does Aetrix verify that P6KE400C is sourced from the original manufacturer or authorized distributors?
All P6KE400C 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 P6KE400C meets industry standards.
7.What is the process for return or replacement of P6KE400C?
All P6KE400C units undergo pre-shipment inspection (PSI). If there is an issue with P6KE400C, 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 P6KE400C part is unused and in its original packaging.
Return procedure for P6KE400C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE400C Tags
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