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Taiwan Semiconductor Corporation P6KE440H
- Part No.:
- P6KE440H
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE440H.pdf
- Description:
- 600W, 440V, UNIDIRECTIONAL, TVS
- Quantity:
- Payment:
- Shipping:
Inventory:9,326
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Product details
Overview
P6KE440H from Taiwan Semiconductor is a unidirectional 600W transient voltage suppressor (TVS) diode designed for high-energy surge protection in power rails and signal lines. It features a 440V nominal breakdown voltage (VBR = 396–484 V), 356 V stand-off voltage (VWM), clamps to ≤631 V at 1.0 A peak pulse current, and uses DO-204AC (DO-15) package for industrial power supply input protection.
For engineers reviewing the P6KE440H datasheet, P6KE440H pinout, P6KE440H application, or P6KE440H equivalent, key selection criteria include its AEC-Q101 qualification, 1.0 μA max reverse leakage at VWM, 175°C junction rating, and compliance with ANSI/IEEE C62.35 for 10/1000 μs surge waveforms.
Technical Context
The P6KE440H operates as a unidirectional avalanche diode that enters breakdown when reverse voltage exceeds its specified VBR range (396–484 V), diverting transient energy to ground while limiting clamped voltage to 631 V at 1.0 A. Its low dynamic impedance and sub-nanosecond response (<1.0 ps from 0 V to VBR) ensure rapid suppression of ESD and lightning-induced surges.
It is rated for non-repetitive 600W peak pulse power under 10/1000 μs waveform, derates linearly above 25°C ambient, and supports steady-state dissipation of 5 W at 75°C with 9.5 mm lead length copper pads. The device meets UL 94V-0 flammability and JESD201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 396 V / 484 V - defines guaranteed avalanche conduction onset window under 1 mA test current |
| VWM | 356 V - maximum continuous reverse operating voltage before significant leakage begins |
| VC @ IPP | 631 V @ 1.0 A - clamped voltage during full-rated 10/1000 μs surge, critical for downstream IC survivability |
| PPK | 600 W - peak pulse power handling per single 10/1000 μs transient, not repeatable without cooling |
| TJ max | +175 °C - maximum junction temperature enabling operation in high-ambient industrial environments |
| ID @ VWM | ≤1 μA - ultra-low leakage ensures minimal standby power loss and signal integrity in high-impedance circuits |
| Package | DO-204AC (DO-15) - industry-standard axial-leaded package with tin-plated leads, compatible with wave soldering |
Pinout & Package
DO-204AC (DO-15) package: axial-leaded, cylindrical epoxy body with cathode band marking; leads are pure tin-plated and solderable per J-STD-002; weight ≈ 0.400 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current path / surge return node | Connected to protected line's low-side or ground reference; carries full surge current during clamping |
| Cathode | Avalanche breakdown terminal | Marked with band; connected to protected line's high-side or power rail; initiates conduction when reverse voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD stress per JESD47 |
| 600W 10/1000μs surge rating | Enables protection against IEC 61000-4-5 Level 4 (4 kV) surges on AC mains or DC bus inputs |
| Clamping voltage ≤631 V | Ensures downstream 600 V-rated MOSFETs or bridge rectifiers remain within safe SOA during transients |
| Reverse leakage ≤1 μA at 356 V | Prevents excessive quiescent current in high-voltage hold-off circuits such as PoE injectors or solar MPPT controllers |
| Response time <1.0 ps | Fast enough to suppress ESD events (IEC 61000-4-2) before damage occurs to sensitive gate oxides |
Applications
| Industrial AC/DC Power Input Protection | Automotive Body Control Module (BCM) Power Rail |
|---|---|
Use Scenario: Installed across bulk capacitor input of 400 V DC industrial SMPS to absorb lightning-induced surges from AC line coupling. IC Role / Device Role / Timing Role: Unidirectional TVS diode providing primary overvoltage clamp on main DC bus. Use Value: Limits transient voltage to ≤631 V, protecting 600 V-rated rectifier bridges and primary-side controllers from destructive overstress. | Use Scenario: Placed on 12 V battery feed to BCM microcontroller power domain to suppress load dump and jump-start spikes. IC Role / Device Role / Timing Role: AEC-Q101-qualified unidirectional TVS absorbing ISO 7637-2 Pulse 5a (load dump) up to 60 V/100 ms. Use Value: Withstands 175°C junction temperature and maintains ≤1 μA leakage at 356 V, ensuring long-term reliability in under-hood thermal environments. |
| Solar Inverter DC Link Protection | Telecom Rectifier Output Clamping |
Use Scenario: Mounted across DC link capacitors in string inverters to protect IGBT gate drivers from switching-induced voltage overshoot. IC Role / Device Role / Timing Role: High-voltage unidirectional TVS clamping fast-rising transients generated by stray inductance during IGBT turn-off. Use Value: Sub-nanosecond response captures dV/dt spikes before they propagate, preventing false triggering or latch-up in isolated gate drivers. | Use Scenario: Applied at output of -48 V telecom rectifiers to suppress ringing and backfeed transients into distributed power architecture. IC Role / Device Role / Timing Role: Standoff-rated TVS suppressing repetitive 10/1000 μs surges from relay switching and cable disconnection events. Use Value: 600W rating and DO-15 mechanical robustness support high-volume automated assembly and field longevity in central office environments. |
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 SMAJ440A | Same DO-214AC package; 440 V VBR min/max = 396–484 V; 600 W rating; but VWM = 356 V identical; RoHS/halogen-free compliant | No AEC-Q101 qualification; intended for commercial/industrial use only | Select when automotive qualification is unnecessary and DO-214AC surface-mount layout is preferred over axial DO-15 |
| ON Semiconductor 1.5KE440A | Higher 1500 W rating; same VBR/VWM specs; DO-201AD package; 1.5x larger footprint; TJ max = 175°C identical | Designed for higher-energy surges (IEC 61000-4-5 Level 5); less suitable for space-constrained PCBs | Select when system-level surge testing requires >600 W margin or legacy 1.5KE footprint compatibility is mandatory |
Compared with Littelfuse SMAJ440A and ON Semi 1.5KE440A, the P6KE440H uniquely combines AEC-Q101 qualification, DO-204AC axial form factor, and precise 600W/440V targeting-making it optimal for automotive and high-reliability industrial designs where qualification, size, and exact energy rating are jointly constrained.
Availability
P6KE440H is available at Aetrix Electronics and suitable for industrial AC/DC power supplies, automotive body control modules, solar inverter DC links, and telecom rectifier outputs requiring stable component supply with AEC-Q101 assurance and DO-204AC packaging.
Supply support for P6KE440H 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 analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving global industrial, automotive, and consumer markets since 1979.
The P6KE series belongs to TSC's high-reliability TVS portfolio, engineered specifically for robust transient suppression in harsh environments-including automotive power systems, renewable energy interfaces, and infrastructure-grade power conversion.
FAQ
What is the maximum clamping voltage of the P6KE440H under rated surge conditions?
The P6KE440H has a maximum clamping voltage (VC) of 631 V when subjected to its rated 1.0 A peak pulse current (IPP) under the standard 10/1000 μs waveform. This value is measured at the device terminals and guarantees that downstream components experience no more than 631 V during a full 600W transient event. The P6KE440H maintains this clamping performance across its specified operating temperature range.
Is the P6KE440H suitable for bidirectional surge protection applications?
No, the P6KE440H is a unidirectional TVS diode, indicated by its "H" suffix and absence of "CA" designation. It conducts only in reverse bias above VBR and blocks forward current like a standard diode. For bidirectional protection, Taiwan Semiconductor offers the P6KE440CA variant. Using P6KE440H in bidirectional circuits risks failure during positive-going transients, as it lacks symmetrical breakdown capability.
Does the P6KE440H meet automotive reliability standards?
Yes, the "H" suffix in P6KE440H explicitly denotes AEC-Q101 qualification per the manufacturer's ordering information. This includes stress testing for temperature cycling, highly accelerated life testing (HALT), and ESD robustness per JESD47. The device is approved for use in automotive powertrain and body electronics where sustained operation at 175°C junction temperature and immunity to load dump transients are required.
What is the standoff voltage (VWM) rating for the P6KE440H, and why does it matter?
The P6KE440H has a maximum working peak reverse voltage (VWM) of 356 V. This is the highest continuous DC or RMS voltage the device can block without exceeding 1 μA leakage current. Selecting a TVS with VWM ≥ system operating voltage prevents false triggering and power loss; for a 400 V DC bus, P6KE440H provides 44 V margin below its 396 V minimum VBR, ensuring stable operation during normal conditions while retaining surge headroom.
How does the P6KE440H compare to the P6KE440A variant?
The P6KE440H and P6KE440A share identical electrical specifications-including VBR (396–484 V), VWM (356 V), VC (631 V), and 600W rating-but differ in qualification and marking. Only the "H" suffix indicates AEC-Q101 qualification; "A" denotes tighter VBR tolerance (±5% vs ±10% for non-A parts) but no automotive qualification. Thus, P6KE440H is mandatory for automotive designs, while P6KE440A suits commercial applications needing tighter voltage control.
P6KE440H 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):
- 356V
- Voltage - Breakdown (Min):
- 396V
- Voltage - Clamping (Max) @ Ipp:
- 631V
- Current - Peak Pulse (10/1000µs):
- 1A
- 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)
P6KE440H FAQ
1.How can I place an order for P6KE440H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE440H 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 P6KE440H reliable?
The price and inventory of P6KE440H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE440H is usually 5 days.
3.What payment methods are accepted for P6KE440H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE440H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE440H?
P6KE440H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE440H 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 P6KE440H?
For technical support, including P6KE440H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE440H requirements.
6.How does Aetrix verify that P6KE440H is sourced from the original manufacturer or authorized distributors?
All P6KE440H 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 P6KE440H meets industry standards.
7.What is the process for return or replacement of P6KE440H?
All P6KE440H units undergo pre-shipment inspection (PSI). If there is an issue with P6KE440H, 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 P6KE440H part is unused and in its original packaging.
Return procedure for P6KE440H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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