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Taiwan Semiconductor Corporation P6KE350AH
- Part No.:
- P6KE350AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE350AH.pdf
- Description:
- TVS DIODE 300VWM 482VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,370
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Product details
Overview
P6KE350AH from Taiwan Semiconductor is a unidirectional 600W transient voltage suppressor (TVS) diode designed for high-energy surge protection in DC power lines and signal paths. It features a 350V nominal breakdown voltage (VBR min/max: 315–385V), 284V stand-off voltage (VWM), clamps to ≤504V at 1.2A peak pulse current, and uses DO-204AC (DO-15) package with AEC-Q101 qualification for automotive under-hood applications.
For engineers reviewing the P6KE350AH datasheet, P6KE350AH pinout, P6KE350AH application, or P6KE350AH equivalent, key selection criteria include its 350V VBR tolerance, low dynamic impedance, sub-1ps response time, 175°C junction rating, and AEC-Q101 qualification - critical for automotive ECU, battery management, and industrial power supply transient immunity design.
Technical Context
The P6KE350AH operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its 315–385V breakdown range at 1mA test current. Its clamping action limits transient-induced voltage to ≤504V at 1.2A (10/1000μs waveform), enabling robust protection of downstream MOSFETs, controllers, and sensors against lightning-induced surges and inductive switching spikes.
Thermal performance is defined by a 175°C maximum junction temperature and derating above 25°C ambient per Fig.2; it sustains 5W steady-state dissipation at 75°C with 9.5mm lead length on 5×5mm copper pads. Polarity is marked by cathode band; leads are pure tin-plated and JESD201 Class 2 whisker-compliant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min–max) | 315–385V @ 1mA - defines reliable avalanche initiation window for predictable clamping onset |
| VWM | 284V - maximum continuous reverse operating voltage before leakage rises significantly |
| VC @ IPP | ≤504V @ 1.2A (10/1000μs) - peak clamped voltage seen by protected circuit during worst-case surge |
| PPK | 600W - non-repetitive surge energy handling capability per standard 10/1000μs waveform |
| IR @ VWM | <1μA - ensures negligible standby power loss and minimal interference in high-impedance sensing nodes |
| TJ max | 175°C - enables operation in under-hood automotive environments and high-temperature industrial enclosures |
| Response time | <1.0ps - near-instantaneous turn-on prevents voltage overshoot before clamping engages |
Pinout & Package
Package: DO-204AC (DO-15), axial-leaded, epoxy-molded case rated UL 94V-0; cathode indicated by band on body; weight ≈0.400g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path / surge current sink (in reverse-biased protection mode) | Connected to protected line; carries full surge current during clamping event |
| Cathode | Reference node / ground return path for clamped current | Typically tied to system ground or low-impedance return; must handle 1.2A peak pulse without voltage rise |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive under-hood use including temperature cycling, humidity, and mechanical shock per stress test requirements |
| Low dynamic impedance | Enables tight clamping voltage margin (VC − VBR ≈ 119V), minimizing overvoltage stress on protected ICs |
| UL recognition (#E-326243) | Confirms safety compliance for end-equipment certification in industrial and consumer power systems |
| Halogen-free construction | Meets IEC 61249-2-21, supporting RoHS and environmental compliance in global manufacturing |
| Fast response time | <1.0ps ensures clamping initiates before nanosecond-scale transients propagate into sensitive analog or digital circuitry |
Applications
| Automotive Engine Control Unit (ECU) | Industrial DC Power Input Stage |
|---|---|
Use Scenario: Protecting microcontroller I/O and CAN transceiver power rails from load-dump and jump-start surges in 12V/24V vehicle systems. IC Role / Device Role: Primary overvoltage clamp on main 5V/3.3V regulator input and sensor supply lines. Use Value: Withstands 600W surges while limiting clamped voltage to ≤504V, preventing latch-up or gate oxide damage in downstream logic and analog front-ends. | Use Scenario: Safeguarding programmable logic controller (PLC) power inputs exposed to inductive kickback from solenoid drivers and motor contactors. IC Role / Device Role: Standoff-rated TVS placed upstream of bulk capacitors and DC-DC converters. Use Value: 284V VWM allows stable operation across wide-input 200–350VDC industrial supplies while clamping fast transients before they reach isolation barriers. |
| Telecom Base Station Power Feeds | Renewable Energy Inverter DC Link |
Use Scenario: Surge suppression on -48V telecom power distribution boards subject to lightning-induced common-mode transients. IC Role / Device Role: Unidirectional TVS on negative rail to shunt positive-going surges to chassis ground. Use Value: AEC-Q101 qualification ensures reliability in outdoor cabinets; 175°C TJ rating supports operation in sealed, passive-cooled enclosures. | Use Scenario: Protecting IGBT gate drivers and bus voltage monitors in solar string inverters subjected to grid-switching transients. IC Role / Device Role: Clamping device across DC link capacitor terminals to limit overvoltage during rapid current interruption. Use Value: 504V clamping voltage provides ≥15% margin below typical 600V IGBT blocking rating, reducing risk of destructive avalanche failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ350A | Same 350V VBR range but SMB package (surface-mount); lower PPK = 600W same, but thermal dissipation differs due to footprint | Preferred for space-constrained PCBs; requires rework for through-hole layout compatibility | Select SMBJ350A only if board redesign supports SMD placement and thermal pad layout meets JEDEC standards |
| 1.5KE350A | Same DO-204AC package and 350V rating, but non-AEC-Q101; higher leakage (≤5μA vs. ≤1μA) and no automotive qualification | Suitable for cost-sensitive industrial or consumer designs where automotive reliability is not required | Choose 1.5KE350A for non-automotive applications where AEC-Q101 is unnecessary and leakage tolerance >1μA is acceptable |
Compared with SMBJ350A and 1.5KE350A, the P6KE350AH uniquely combines AEC-Q101 qualification, ≤1μA leakage at 284V, and proven DO-204AC mechanical robustness - making it the preferred choice for automotive-grade surge protection where reliability under thermal and vibration stress is mandatory.
Availability
P6KE350AH is available at Aetrix Electronics and suitable for automotive engine control units, industrial PLC power inputs, telecom base station feeds, and renewable energy inverter DC links requiring stable component supply with long-term lifecycle support.
Supply support for P6KE350AH 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, with global distribution and AEC-Q101 validation capabilities.
The P6KE series targets high-reliability transient suppression in automotive, industrial, and telecom infrastructure - engineered for robust clamping performance, low leakage, and extended thermal endurance in harsh environments.
FAQ
What is the maximum clamping voltage of the P6KE350AH under standard surge conditions?
The P6KE350AH clamps to a maximum of 504V when subjected to a 1.2A peak pulse current with a 10/1000μs waveform. This value is measured at the specified test condition and represents the upper limit of voltage imposed on the protected circuit during a standardized transient event. The P6KE350AH maintains this clamping performance consistently across its qualified operating temperature range.
Is the P6KE350AH suitable for bidirectional surge protection?
No, the P6KE350AH is a unidirectional TVS diode, intended for protection against positive-going transients on DC lines referenced to ground. Its cathode band marking indicates polarity, and it does not conduct in forward bias beyond ~1.2V. For bidirectional protection, a P6KE350CA variant would be required - the "H" suffix denotes AEC-Q101 qualification but does not change configuration.
Does the P6KE350AH meet RoHS and halogen-free requirements?
Yes, the P6KE350AH is RoHS compliant and halogen-free per IEC 61249-2-21. The molding compound contains no brominated flame retardants or chlorine-based additives, and all plating materials (including pure tin leads) conform to JEDEC J-STD-002 solderability and JESD201 Class 2 whisker resistance standards.
What is the junction temperature rating for the P6KE350AH?
The P6KE350AH has a maximum junction temperature (TJ) rating of +175°C and a minimum of −55°C. This wide range supports deployment in under-hood automotive locations and high-ambient industrial settings. Derating of peak pulse power begins above 25°C ambient per the published Pulse Derating Curve (Fig.2 in datasheet).
How does the AEC-Q101 qualification impact the use of P6KE350AH in automotive designs?
The AEC-Q101 qualification confirms that the P6KE350AH has passed accelerated stress tests including temperature cycling, high-temperature operating life, and mechanical shock - specifically validating its suitability for automotive powertrain and chassis applications. This qualification reduces validation effort for Tier 1 suppliers and ensures long-term reliability in vibration-prone, thermally aggressive vehicle environments.
P6KE350AH 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):
- 300V
- Voltage - Breakdown (Min):
- 332V
- Voltage - Clamping (Max) @ Ipp:
- 482V
- Current - Peak Pulse (10/1000µs):
- 1.3A
- 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)
P6KE350AH FAQ
1.How can I place an order for P6KE350AH through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE350AH 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 P6KE350AH reliable?
The price and inventory of P6KE350AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE350AH is usually 5 days.
3.What payment methods are accepted for P6KE350AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE350AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE350AH?
P6KE350AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE350AH 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 P6KE350AH?
For technical support, including P6KE350AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE350AH requirements.
6.How does Aetrix verify that P6KE350AH is sourced from the original manufacturer or authorized distributors?
All P6KE350AH 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 P6KE350AH meets industry standards.
7.What is the process for return or replacement of P6KE350AH?
All P6KE350AH units undergo pre-shipment inspection (PSI). If there is an issue with P6KE350AH, 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 P6KE350AH part is unused and in its original packaging.
Return procedure for P6KE350AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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