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Taiwan Semiconductor Corporation P6KE43
- Part No.:
- P6KE43
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE43.pdf
- Description:
- 600W, 43V, UNIDIRECTIONAL, TVS
- Quantity:
- Payment:
- Shipping:
Inventory:5,647
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Product details
Overview
P6KE43 from Taiwan Semiconductor is a unidirectional 600W transient voltage suppressor (TVS) diode designed for primary-level overvoltage protection in DC power rails and signal lines. It features a 43V nominal breakdown voltage (38.7–47.3V VBR), 34.8V stand-off voltage (VWM), 61.9V maximum clamping voltage at 10A peak surge current, and operates across –55°C to +175°C junction temperature range - deployed in automotive power supply inputs and industrial sensor interfaces.
For engineers reviewing the P6KE43 datasheet, P6KE43 pinout, P6KE43 application, or P6KE43 equivalent, key selection criteria include clamping performance under 10/1000μs surge, low leakage (<1μA @ 34.8V), DO-204AC (DO-15) through-hole package compatibility, and AEC-Q101 qualification status for automotive-grade reliability validation.
Technical Context
The P6KE43 employs a silicon avalanche diode structure optimized for fast transient suppression with sub-nanosecond response (<1.0ps from 0V to VBR). Its unidirectional configuration provides reverse-biased clamping only, requiring correct polarity alignment relative to protected circuitry.
It delivers 600W non-repetitive peak pulse power per 10/1000μs waveform, with thermal derating above 25°C ambient and a maximum junction temperature of 175°C. The device exhibits a VBR temperature coefficient of 0.101%/°C, enabling predictable voltage drift across operating temperature ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 38.7V / 47.3V at 1mA test current - defines reliable avalanche initiation window for consistent clamping onset |
| VWM | 34.8V - maximum continuous reverse working voltage before significant leakage begins |
| VC @ IPP | 61.9V at 10A peak pulse current - clamping voltage limiting downstream component stress during surge events |
| IPP (max) | 10A - peak surge current capability under standardized 10/1000μs waveform |
| PPK | 600W - non-repetitive surge power rating determining single-event energy absorption capacity |
| TJ(max) | +175°C - maximum junction temperature supporting operation in high-ambient environments like engine compartments |
| Leakage ID | <1μA @ VWM - minimal standby power loss and negligible loading on sensitive source circuits |
Pinout & Package
Package: DO-204AC (DO-15), axial-leaded, epoxy-molded case with cathode band marking for unidirectional polarity. Leads are pure tin-plated and solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path) in unidirectional TVS configuration |
| Cathode | Avalanche clamping terminal | Connected to protected line (e.g., +12V rail); conducts when reverse voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| Surge robustness | 600W peak pulse power handling per 10/1000μs waveform - sustains high-energy transients without degradation |
| Clamping precision | 61.9V max clamping at 10A - limits voltage overshoot to safe levels for 3.3V/5V/12V ICs downstream |
| Response speed | <1.0ps rise time from 0V to VBR - engages before most ESD or inductive spikes fully develop |
| Thermal resilience | 175°C max junction temperature - enables use in under-hood automotive and industrial control enclosures |
| Leakage control | <1μA reverse leakage at 34.8V - avoids signal integrity issues in high-impedance sensor or communication lines |
Applications
| Automotive Power Input Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: 12V battery-fed ECUs exposed to load dump (ISO 7637-2 Pulse 5a) and jump-start surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed upstream of LDOs and microcontrollers. Use Value: Limits input rail to ≤61.9V during 600W transients, preventing damage to 36V-rated input stages. |
Use Scenario: 4–20mA current loop transmitters interfacing with PLC analog inputs in factory automation. IC Role / Device Role / Timing Role: Reverse-polarity and surge protector on loop supply terminals. Use Value: Blocks >34.8V reverse faults and clamps induced lightning surges to safe levels for precision op-amps. |
| DC Motor Drive Flyback Suppression | RS-485 Transceiver Bus Protection |
Use Scenario: H-bridge motor drivers where inductive kickback generates >100V spikes across MOSFET drains. IC Role / Device Role / Timing Role: Snubber-connected TVS across motor terminals or supply rails. Use Value: Absorbs 600W flyback energy within nanoseconds, eliminating need for bulkier RC snubbers. |
Use Scenario: Industrial RS-485 nodes installed in electrically noisy environments (e.g., conveyor systems). IC Role / Device Role / Timing Role: Line-to-ground TVS on A/B differential pair inputs. Use Value: Clamps EFT bursts (IEC 61000-4-4) to <62V, preserving transceiver common-mode range and data integrity. |
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 P6KE43A | Higher VBR range (40.9–45.2V), tighter tolerance, same DO-15 package and 600W rating | Suitable where tighter breakdown consistency is required for precise clamping thresholds | Select P6KE43A when ±5% VBR tolerance is needed versus P6KE43's ±10% spread |
| ON Semiconductor 1.5KE43A | Same VBR/VC specs but rated for 1500W peak power; larger DO-201AD package | Used in higher-energy surge environments where 600W margin is insufficient | Choose 1.5KE43A only if board layout accommodates larger footprint and higher surge energy is expected |
Compared with P6KE43, P6KE43A offers improved VBR consistency for tighter system-level clamping control, while 1.5KE43A trades package size for 2.5× surge power headroom - making P6KE43 optimal for space-constrained 600W-class protection.
Availability
P6KE43 is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor modules, and DC motor drive designs requiring stable component supply and long-term lifecycle support.
Supply support for P6KE43 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 for industrial and automotive markets.
The P6KE series was developed to deliver AEC-Q101-qualified, high-reliability transient suppression in compact DO-15 packages - targeting cost-sensitive yet robust protection for automotive body electronics and industrial control systems.
FAQ
What is the maximum clamping voltage of the P6KE43 under surge conditions?
The P6KE43 has a maximum clamping voltage (VC) of 61.9V at 10A peak pulse current (IPP) under the standard 10/1000μs waveform. This value ensures downstream components such as 3.3V or 5V logic ICs remain within safe operating voltage limits during transient events. The clamping performance is guaranteed across the full operating temperature range and is validated per ANSI/IEEE C62.35 standards.
Is the P6KE43 suitable for automotive applications?
Yes, the P6KE43 is qualified to AEC-Q101 when ordered with the "H" suffix (e.g., P6KE43H). The base P6KE43 variant is not AEC-Q101 certified; only versions marked with "H" meet the stress test requirements for automotive under-hood and chassis applications. Always verify the ordering code includes "H" for automotive-grade deployment of the P6KE43.
What is the package type and mounting configuration of the P6KE43?
The P6KE43 uses the DO-204AC (DO-15) axial-leaded package with a cathode band marking for unidirectional polarity. It is designed for through-hole mounting on PCBs, with pure tin-plated leads compliant with J-STD-002 solderability standards. The package weighs approximately 0.400g and meets UL 94V-0 flammability requirements.
How does the P6KE43 compare to bidirectional TVS diodes like P6KE43CA?
The P6KE43 is unidirectional and intended for DC line protection with defined polarity, whereas P6KE43CA is bidirectional and used in AC-coupled or floating signal paths. The P6KE43 offers lower leakage and faster response in DC applications, while P6KE43CA provides symmetrical clamping in both directions - making them functionally distinct, not interchangeable, without circuit redesign.
What is the junction temperature range and thermal derating behavior of the P6KE43?
The P6KE43 supports a junction temperature range of –55°C to +175°C. Its peak pulse power rating of 600W is specified at 25°C ambient and must be linearly derated above that point per the published pulse derating curve (Fig.2). At 75°C ambient, the device maintains ≥5W steady-state power dissipation when mounted on 5×5 mm copper pads - critical for thermally demanding environments like engine control units.
P6KE43 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
P6KE43 FAQ
1.How can I place an order for P6KE43 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE43 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 P6KE43 reliable?
The price and inventory of P6KE43 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE43 is usually 5 days.
3.What payment methods are accepted for P6KE43?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE43 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE43?
P6KE43 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE43 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 P6KE43?
For technical support, including P6KE43 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE43 requirements.
6.How does Aetrix verify that P6KE43 is sourced from the original manufacturer or authorized distributors?
All P6KE43 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 P6KE43 meets industry standards.
7.What is the process for return or replacement of P6KE43?
All P6KE43 units undergo pre-shipment inspection (PSI). If there is an issue with P6KE43, 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 P6KE43 part is unused and in its original packaging.
Return procedure for P6KE43:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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