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Taiwan Semiconductor Corporation P6KE350H
- Part No.:
- P6KE350H
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE350H.pdf
- Description:
- 600W, 350V, UNIDIRECTIONAL, TVS
- Quantity:
- Payment:
- Shipping:
Inventory:6,385
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Product details
Overview
P6KE350H 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 350V nominal breakdown voltage (VBR min/max = 315V–385V), 284V stand-off voltage (VWM), clamps to ≤504V at 1.2A peak pulse current, and uses DO-204AC (DO-15) axial package. It is AEC-Q101 qualified and used in automotive power supply input protection.
For engineers reviewing the P6KE350H datasheet, P6KE350H pinout, P6KE350H application, or P6KE350H equivalent, key selection criteria include its 350V VBR range, 600W 10/1000μs surge rating, low dynamic impedance, sub-1ps response time, and AEC-Q101 qualification for harsh-environment reliability.
Technical Context
The P6KE350H operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its 315–385V breakdown range. Its clamping action limits transient energy to ≤504V at 1.2A, with <1.0ps response from 0V to VBR - critical for protecting downstream MOSFETs and controllers against EFT and load-dump events.
It exhibits <1μA reverse leakage at 284V (VWM), a 0.110%/°C temperature coefficient of VBR, and is rated for junction temperatures from –55°C to +175°C. The device is not bidirectional; polarity is marked by cathode band per DO-15 mechanical drawing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min–max) | 315–385V - defines reliable avalanche initiation window under 1mA test current |
| VWM | 284V - maximum continuous reverse operating voltage before leakage rises significantly |
| VC @ IPPM | ≤504V at 1.2A - clamping voltage during 10/1000μs surge, limiting stress on protected ICs |
| PPK | 600W - peak pulse power handling capability per standard 10/1000μs waveform |
| IR @ VWM | <1μA - ensures minimal standby power loss and signal integrity in high-impedance circuits |
| Response Time | <1.0ps - enables suppression of ultrafast transients before sensitive circuitry reacts |
| Package | DO-204AC (DO-15) - industry-standard axial leaded package with tin-plated leads, UL 94V-0 molding |
Pinout & Package
DO-204AC (DO-15) axial package with cathode indicated by a colored band. Leads are pure tin-plated, solderable per J-STD-002, and meet JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Ground reference terminal | Connected to system ground or low-side return path; conducts forward surge current up to 100A (8.3ms) |
| Cathode | Protected line terminal | Connected to line being protected (e.g., battery rail); blocks >284V reverse voltage until clamping initiates |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness |
| 600W 10/1000μs surge rating | Withstands repeated load-dump and ISO 7637-2 Pulse 5a/b surges without degradation |
| Low dynamic impedance | Enables tight clamping (VC/VBR ratio ≈ 1.59) and minimizes let-through energy to protected ICs |
| UL 94V-0 flammability rating | Molding compound self-extinguishes under flame exposure - required for under-hood automotive modules |
| Halogen-free construction | Complies with IEC 61249-2-21, supporting RoHS and environmental compliance in end-of-life recycling |
Applications
| Automotive Power Input Protection | Industrial DC Power Rail Clamping |
|---|---|
Use Scenario: 12V/24V vehicle battery line exposed to load dump (ISO 7637-2 Pulse 5) and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and DC-DC converter input to clamp surges before they reach regulator ICs. Use Value: Limits peak voltage to ≤504V, preventing overvoltage failure of automotive-grade buck controllers rated ≤60V. |
Use Scenario: 24–48V industrial PLC power input subjected to inductive switching noise and EFT bursts (IEC 61000-4-4). IC Role / Device Role / Timing Role: Standoff protector on main DC bus, absorbing repetitive 600W transients without thermal runaway. Use Value: Maintains <1μA leakage at 284V, avoiding false triggering while delivering sub-ns response to fast-rising edges. |
| Telecom Line Surge Suppression | Renewable Energy Inverter DC Link |
Use Scenario: Secondary-side DC bias rail in PoE-powered equipment facing induced lightning surges. IC Role / Device Role / Timing Role: High-voltage standoff device shunting transients away from Ethernet PHY and PMIC. Use Value: 350V VBR allows use on 270–300V DC intermediate buses common in 802.3bt systems. |
Use Scenario: DC link between PV array and inverter stage exposed to grid-switching transients and lightning-induced spikes. IC Role / Device Role / Timing Role: Primary overvoltage clamp on high-voltage DC bus (>300V), coordinated with MOVs and crowbars. Use Value: 504V clamping voltage provides margin below typical 600V IGBT gate oxide limits, reducing risk of catastrophic 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 |
|---|---|---|---|
| Littelfuse SMAJ350A | Same 350V VBR range, DO-214AC (SMA) surface-mount package, 400W rating | Requires PCB rework for SMT layout; lower surge rating reduces margin in load-dump scenarios | Select when board space is constrained and 400W suffices for defined threat levels |
| ON Semiconductor 1.5KE350A | Same 350V VBR, DO-201AD package, 1500W rating, higher VC (512V), AEC-Q101 not specified | Higher surge capacity suits heavy-duty industrial use but lacks automotive qualification documentation | Select for non-automotive 1500W applications where qualification traceability is secondary to peak power |
Compared with SMAJ350A and 1.5KE350A, P6KE350H uniquely combines AEC-Q101 qualification, 600W rating, and DO-15 through-hole compatibility - making it optimal for automotive replacement modules and legacy industrial designs requiring proven reliability and serviceability.
Availability
P6KE350H is available at Aetrix Electronics and suitable for automotive electronics, industrial power supplies, and renewable energy inverters requiring stable component supply across extended product lifecycles.
Supply support for P6KE350H 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 automotive, industrial, and consumer markets since 1979.
The P6KE series belongs to TSC's AEC-Q101-qualified TVS portfolio, engineered specifically for high-reliability transient suppression in automotive power distribution and industrial control systems where long-term stability and surge immunity are mission-critical.
FAQ
What is the breakdown voltage tolerance of P6KE350H?
The P6KE350H has a guaranteed breakdown voltage range of 315V to 385V at 1mA test current (IT), corresponding to ±10% around the 350V nominal rating. This tolerance is verified per ANSI/IEEE C62.35 and ensures consistent clamping behavior across production lots and temperature extremes from –55°C to +175°C.
Is P6KE350H bidirectional or unidirectional?
P6KE350H is a unidirectional TVS diode, configured to protect against reverse-polarity transients only. Its cathode is marked with a band on the DO-15 body, and it does not conduct in forward bias beyond normal diode conduction. Bidirectional variants in the same family use "CA" suffixes (e.g., P6KE350CA), which P6KE350H is not.
Does P6KE350H meet automotive qualification standards?
Yes, P6KE350H is explicitly AEC-Q101 qualified per the manufacturer's ordering code suffix "H", confirmed in TSC's P2203 datasheet revision. This includes stress testing for high-temperature reverse bias, temperature cycling, and accelerated life validation - making it suitable for under-hood and powertrain applications.
What is the maximum clamping voltage for P6KE350H under surge conditions?
The maximum clamping voltage (VC) of P6KE350H is 504V at 1.2A peak pulse current (IPP), measured using the standardized 10/1000μs double-exponential waveform. This value represents the upper limit of voltage seen by downstream components during worst-case transient events, providing design margin for 600V-rated semiconductors.
Can P6KE350H be used in parallel for higher surge handling?
No - P6KE350H is not recommended for parallel operation due to VBR mismatch between units, which causes uneven current sharing and potential thermal runaway. For higher surge ratings, select a single higher-rated device (e.g., 1.5KE350A) or implement staged protection with upstream fusing and coordination analysis.
P6KE350H 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):
- 284V
- Voltage - Breakdown (Min):
- 315V
- Voltage - Clamping (Max) @ Ipp:
- 504V
- Current - Peak Pulse (10/1000µs):
- 1.2A
- 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)
P6KE350H FAQ
1.How can I place an order for P6KE350H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE350H 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 P6KE350H reliable?
The price and inventory of P6KE350H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE350H is usually 5 days.
3.What payment methods are accepted for P6KE350H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE350H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE350H?
P6KE350H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE350H 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 P6KE350H?
For technical support, including P6KE350H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE350H requirements.
6.How does Aetrix verify that P6KE350H is sourced from the original manufacturer or authorized distributors?
All P6KE350H 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 P6KE350H meets industry standards.
7.What is the process for return or replacement of P6KE350H?
All P6KE350H units undergo pre-shipment inspection (PSI). If there is an issue with P6KE350H, 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 P6KE350H part is unused and in its original packaging.
Return procedure for P6KE350H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE350H Tags
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