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Taiwan Semiconductor Corporation P6KE43H
- Part No.:
- P6KE43H
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE43H.pdf
- Description:
- 600W, 43V, UNIDIRECTIONAL, TVS
- Quantity:
- Payment:
- Shipping:
Inventory:7,630
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Product details
Overview
P6KE43H from Taiwan Semiconductor is a unidirectional 600W transient voltage suppressor (TVS) diode designed for primary-side overvoltage protection in DC power rails and signal lines. It features a nominal breakdown voltage of 43V, clamps transients to ≤61.9V at 10A peak surge current, and delivers fast response (<1.0ps from 0V to VBR), low dynamic impedance, and AEC-Q101 qualification for automotive-grade reliability - deployed in automotive body control modules and industrial power supply input stages.
For engineers reviewing the P6KE43H datasheet, P6KE43H pinout, P6KE43H application, or P6KE43H equivalent, key selection criteria include its 34.8V stand-off voltage, 1μA max reverse leakage at VWM, DO-204AC (DO-15) axial package, and compliance with IEC 61000-4-5 Level 4 surge immunity requirements.
Technical Context
The P6KE43H operates as a silicon avalanche diode optimized for unidirectional clamping. Its junction structure enables sub-nanosecond turn-on latency and stable clamping performance across -55°C to +175°C operating temperature range, with thermal derating defined per Fig.2 in the datasheet.
It is rated for non-repetitive 10/1000μs waveform surges up to 600W and supports peak forward surge currents of 100A (8.3ms half-sine). The device exhibits a VBR temperature coefficient of 0.101%/°C and meets UL 94V-0 flammability and JESD201 Class 2 whisker resistance standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 34.8 V - Maximum continuous reverse working voltage before clamping initiates; defines safe DC operating margin. |
| VBR (min/max) | 38.7 V / 47.3 V at 1 mA - Verified breakdown threshold range ensures consistent clamping onset across production lots. |
| VC @ IPP | 61.9 V at 10 A - Clamped voltage during 10/1000μs surge; determines protected circuit's maximum transient exposure. |
| IR @ VWM | <1 μA - Ultra-low leakage preserves battery life and avoids false triggering in high-impedance sensing circuits. |
| PPK | 600 W - Peak pulse power handling capacity per 10/1000μs waveform; validates robustness against IEC 61000-4-5 surges. |
| TJMAX | +175 °C - Maximum junction temperature rating enables operation in under-hood automotive environments. |
| Package | DO-204AC (DO-15) - Standard axial-leaded package with tin-plated leads compliant to J-STD-002 solderability. |
Pinout & Package
DO-204AC (DO-15) axial package with cathode band marking; two-terminal device requiring no biasing or external control signals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or lowest potential node; defines clamping reference point for unidirectional operation. |
| Cathode | High-side transient input terminal | Connected to protected line (e.g., 12V rail); avalanche conduction occurs when voltage exceeds VBR relative to anode. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and infotainment power supplies. |
| 600W surge capability | Withstands IEC 61000-4-5 4kV surge test (10/1000μs) without degradation or parametric shift. |
| Clamping voltage ≤61.9V | Ensures downstream 3.3V/5V logic ICs remain below absolute maximum ratings during transient events. |
| Response time <1.0ps | Enables protection of high-speed interfaces (e.g., LIN bus, CAN FD stubs) before damage occurs. |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU Directive 2011/65/EU for environmentally constrained manufacturing. |
Applications
| Automotive Power Rail Protection | Industrial DC Input Stage |
|---|---|
|
Use Scenario: Protecting 12V/24V battery-fed ECUs from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between power rail and chassis ground to clamp positive-going spikes. Use Value: Limits voltage excursions to ≤61.9V, preventing latch-up or gate oxide rupture in MCU power management ICs. |
Use Scenario: Safeguarding programmable logic controllers (PLCs) against induced surges on 24V DC field wiring. IC Role / Device Role / Timing Role: Primary-level surge suppression component mounted at DIN-rail power entry point. Use Value: Absorbs 600W pulses without failure, maintaining system uptime in factory automation environments. |
| LED Driver Overvoltage Clamp | Communication Interface ESD Guard |
|
Use Scenario: Preventing catastrophic failure of constant-current LED drivers during hot-swap or cable disconnect events. IC Role / Device Role / Timing Role: Parallel-connected TVS across driver output terminals to shunt inductive kickback energy. Use Value: Clamps flyback voltages within 1.0ps, avoiding MOSFET drain-source breakdown in buck-based drivers. |
Use Scenario: Adding secondary-level protection to RS-485 transceivers exposed to ESD events on long cable runs. IC Role / Device Role / Timing Role: Standoff voltage (34.8V) allows normal 5V/12V bus operation while clamping ±8kV HBM ESD strikes. Use Value: Low leakage (<1μA) prevents signal integrity degradation on differential data lines. |
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 SMAJ43A | Same DO-214AC (SMA) package; 43V nominal, 600W rating; VC = 69.4V @ 8.6A; higher clamping voltage than P6KE43H. | Higher VC reduces margin for 48V-rated components; better suited for less sensitive loads. | Select when board layout uses surface-mount footprint and clamping margin allows ≥69V excursion. |
| ON Semiconductor 1.5KE43A | DO-201AD package; same 43V nominal rating; VC = 64.5V @ 9.3A; 1.5kW peak rating but lower surge current endurance per pulse. | Higher peak power rating masks lower single-pulse robustness; requires thermal derating above 25°C ambient. | Choose only if legacy design uses DO-201AD footprint and thermal management supports higher junction temperatures. |
Compared with Littelfuse SMAJ43A and ON Semi 1.5KE43A, the P6KE43H offers tighter clamping (61.9V), lower leakage (<1μA), and AEC-Q101 qualification - making it optimal for space-constrained automotive and industrial designs where voltage margin and reliability are critical.
Availability
P6KE43H is available at Aetrix Electronics and suitable for automotive electronics, industrial power supplies, and LED lighting systems requiring stable component supply and AEC-Q101-compliant surge protection.
Supply support for P6KE43H 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, specializing in power management, protection, and signal conditioning devices.
The P6KE series belongs to TSC's transient voltage suppressor product line, engineered specifically for high-reliability DC power line protection in automotive, industrial, and consumer applications demanding AEC-Q101 validation and robust surge immunity.
FAQ
What is the clamping voltage of the P6KE43H under a 10A 10/1000μs surge?
The P6KE43H clamps to a maximum of 61.9V when subjected to a 10A peak pulse with a 10/1000μs waveform. This value is measured per IEC 61000-4-5 test conditions and is guaranteed across the full operating temperature range. The P6KE43H achieves this clamping performance while maintaining low dynamic impedance, ensuring effective energy diversion away from protected circuitry.
Is the P6KE43H suitable for bidirectional transient suppression?
No, the P6KE43H is a unidirectional TVS diode and must be used with correct polarity - cathode connected to the protected line, anode to ground. For bidirectional protection, TSC offers the P6KE43CA variant. Using P6KE43H in reverse-biased configurations risks permanent breakdown due to its asymmetric junction design, and it does not meet bipolar electrical specifications.
Does the P6KE43H meet automotive qualification standards?
Yes, the "H" suffix in P6KE43H explicitly denotes AEC-Q101 qualification, verified through stress testing including HTGB, HTRB, TCT, and ESD per JESD22 standards. This certification confirms suitability for automotive powertrain, body electronics, and ADAS subsystems where reliability under thermal cycling and vibration is mandatory.
What is the maximum steady-state power dissipation for the P6KE43H at 75°C ambient?
The P6KE43H has a steady-state power dissipation rating of 5W at TA = 75°C with lead lengths of 9.5mm (0.375") mounted on 5×5 mm copper pads. This derated value reflects thermal limitations of the DO-204AC package and must be considered in thermally constrained PCB layouts. Continuous power beyond this limit risks exceeding the 175°C maximum junction temperature.
How does the P6KE43H compare to the P6KE43A variant?
The P6KE43H shares identical electrical parameters with P6KE43A (VBR = 40.9–45.2V, VC = 59.3V @ 10.6A) but adds AEC-Q101 qualification and enhanced process controls for automotive use. Both use DO-204AC packaging and have the same 34.8V stand-off voltage and <1μA leakage. The "H" suffix confirms extended reliability validation - not a parameter upgrade.
P6KE43H 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):
- 34.8V
- Voltage - Breakdown (Min):
- 38.7V
- Voltage - Clamping (Max) @ Ipp:
- 61.9V
- Current - Peak Pulse (10/1000µs):
- 10A
- 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)
P6KE43H FAQ
1.How can I place an order for P6KE43H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE43H 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 P6KE43H reliable?
The price and inventory of P6KE43H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE43H is usually 5 days.
3.What payment methods are accepted for P6KE43H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE43H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE43H?
P6KE43H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE43H 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 P6KE43H?
For technical support, including P6KE43H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE43H requirements.
6.How does Aetrix verify that P6KE43H is sourced from the original manufacturer or authorized distributors?
All P6KE43H 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 P6KE43H meets industry standards.
7.What is the process for return or replacement of P6KE43H?
All P6KE43H units undergo pre-shipment inspection (PSI). If there is an issue with P6KE43H, 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 P6KE43H part is unused and in its original packaging.
Return procedure for P6KE43H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE43H Tags
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