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Taiwan Semiconductor Corporation P6KE39C
- Part No.:
- P6KE39C
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE39C.pdf
- Description:
- 600W, 39V, BIDIRECTIONAL, TVS
- Quantity:
- Payment:
- Shipping:
Inventory:9,361
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Product details
Overview
P6KE39C from Taiwan Semiconductor is a bidirectional transient voltage suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a nominal breakdown voltage of 39 V, clamps transients up to 56.4 V at 11.1 A peak surge current, delivers 600 W peak pulse power (10/1000 µs), and operates across –55 °C to +175 °C junction temperature - deployed in automotive lighting control modules and industrial I/O interface protection.
For engineers reviewing the P6KE39C datasheet, P6KE39C pinout, P6KE39C application, or P6KE39C equivalent, key selection criteria include its bidirectional configuration, DO-204AC (DO-15) package compatibility, 31.6 V stand-off voltage, <1 μA leakage above 10 V, and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
The P6KE39C is a single-die, silicon avalanche diode optimized for fast clamping of ESD and electrical fast transients (EFT). Its bidirectional structure enables symmetrical protection without polarity sensitivity, with typical response time under 5.0 ns from 0 V to VBR.
It complies with ANSI/IEEE C62.35 for surge testing, supports unidirectional forward surge up to 100 A (8.3 ms half-sine), and exhibits a temperature coefficient of VBR at 0.100 %/°C - enabling predictable voltage drift over temperature in harsh environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 35.1 V / 42.9 V - ensures reliable avalanche conduction onset within defined tolerance at 1 mA test current |
| VWM | 31.6 V - maximum continuous reverse operating voltage before significant leakage begins |
| VC @ IPP | 56.4 V at 11.1 A - peak clamped voltage during 10/1000 µs surge, limiting downstream stress |
| PPK | 600 W - non-repetitive surge power handling capability per standard waveform |
| IR @ VWM | <1 µA - ultra-low leakage preserves system standby power and signal integrity |
| TJ max | +175 °C - extended thermal range supports under-hood automotive and high-temperature industrial use |
| Package | DO-204AC (DO-15) - industry-standard axial-leaded package with tin-plated leads, UL 94V-0 rated molding |
Pinout & Package
DO-204AC (DO-15) axial-leaded package with cathode band marking for unidirectional variants; P6KE39C is bidirectional and lacks polarity marking - terminals are functionally symmetric.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional avalanche junction | Either terminal serves as anode or cathode depending on transient polarity - no PCB orientation dependency |
| Lead 1 / Lead 2 | Surge current path | Low-inductance axial path handles 11.1 A peak surge with minimal voltage overshoot |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, lighting, and body electronics per stress test requirements |
| 600 W surge rating (10/1000 µs) | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-to-line, 2 kV line-to-ground) without degradation |
| Clamping voltage ≤56.4 V | Protects 3.3 V, 5 V, 12 V, and 24 V logic and power rails by limiting transient overshoot below IC damage thresholds |
| Response time <5.0 ns | Engages before ESD pulses (IEC 61000-4-2) or EFT bursts (IEC 61000-4-4) propagate into sensitive circuitry |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for green manufacturing and end-of-life processing |
Applications
| Automotive LED Headlamp Driver Protection | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: Protects MOSFET gate drivers and current-sense amplifiers from load-dump and inductive kickback in 12 V/24 V LED headlamp systems. IC Role / Device Role / Timing Role: Bidirectional TVS placed across power rail and ground to clamp transients before they reach driver ICs. Use Value: Prevents latch-up or permanent damage to 30 V-rated gate drivers by limiting clamped voltage to 56.4 V during 600 W surges. | Use Scenario: Shields 24 V digital input channels in programmable logic controllers from field-wiring induced surges and EFT noise. IC Role / Device Role / Timing Role: Primary front-end protection device mounted directly at connector entry point. Use Value: Maintains signal integrity by suppressing >1 kV EFT bursts while adding <0.5 pF capacitance - no data rate degradation. |
| Smart Building Sensor Node ESD Protection | Power Over Ethernet (PoE) Interface Clamp |
Use Scenario: Safeguards low-power microcontrollers and I²C sensors in battery-operated environmental monitors exposed to human-body-model ESD. IC Role / Device Role / Timing Role: Localized TVS on sensor supply and communication lines (e.g., SDA/SCL). Use Value: Clamps 8 kV contact discharge to <56.4 V within 5 ns, preventing reset or corruption in sub-1 µA sleep-mode operation. | Use Scenario: Supplements primary PoE surge protection on 48 V DC power pairs in IEEE 802.3af/at midspan injectors. IC Role / Device Role / Timing Role: Secondary clamping stage after gas discharge tube (GDT) to limit let-through voltage. Use Value: Reduces residual clamping voltage to safe levels for PoE controller ICs rated ≤60 V, avoiding overvoltage shutdown. |
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 SMAJ39CA | Same DO-214AC (SMA) package; 39 V nominal, 56.4 V clamping, but lower 400 W peak power rating | Suitable for space-constrained PCBs where surface-mount is preferred over axial DO-15 | Select when board real estate is limited and 400 W surge margin suffices |
| ON Semiconductor 1.5KE39CA | Same DO-201AD package; identical 39 V / 56.4 V specs but rated for 1500 W peak power (10/1000 µs) | Used where higher surge immunity is required - e.g., outdoor telecom power feeds or utility metering | Choose when system-level surge testing exceeds IEC 61000-4-5 Level 4 |
Compared with P6KE39C, SMAJ39CA trades axial-mount simplicity and 600 W capability for smaller footprint and lower surge margin, while 1.5KE39CA offers higher power handling in a larger axial package - enabling trade-offs between board area, thermal mass, and surge severity requirements.
Availability
P6KE39C is available at Aetrix Electronics and suitable for automotive lighting systems, industrial PLC I/O modules, smart building sensor nodes, and Power over Ethernet interfaces requiring stable component supply and AEC-Q101 compliance.
Supply support for P6KE39C 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, lighting, and body electronics - balancing clamping performance, thermal robustness, and cost-effective axial packaging.
FAQ
What is the polarity configuration of P6KE39C?
P6KE39C is a bidirectional TVS diode, meaning it provides symmetrical clamping for both positive and negative transients without polarity sensitivity. Unlike unidirectional variants (e.g., P6KE39A), it has no cathode band marking and can be installed in either orientation on the PCB - ideal for AC-coupled or floating signal lines where voltage polarity is undefined.
Does P6KE39C meet AEC-Q101 qualification?
Yes, P6KE39C is AEC-Q101 qualified per the manufacturer's ordering code suffix "H" (e.g., P6KE39CH), confirming compliance with stress tests for automotive applications including temperature cycling, humidity bias, and mechanical shock. This qualification applies specifically to P6KE39C and not to non-H variants like P6KE39A or P6KE39.
What is the maximum clamping voltage of P6KE39C under surge conditions?
The maximum clamping voltage (VC) of P6KE39C is 56.4 V at 11.1 A peak pulse current (IPP) using the 10/1000 µs waveform. This value is guaranteed across temperature and represents the upper limit of voltage imposed on protected circuitry during worst-case surge events - critical for ensuring compatibility with 3.3 V, 5 V, 12 V, and 24 V system rails.
Can P6KE39C replace P6KE39A in a design?
No - P6KE39C and P6KE39A are not interchangeable. P6KE39C is bidirectional with symmetrical VBR (35.1–42.9 V) in both directions, while P6KE39A is unidirectional with a cathode band and only conducts in reverse. Substituting one for the other risks failure to clamp positive transients (if using P6KE39A where P6KE39C is specified) or unintended forward conduction (if using P6KE39C in a DC-biased unidirectional path).
What is the junction capacitance of P6KE39C?
P6KE39C does not specify junction capacitance (CJ) in its official datasheet. While typical DO-15 TVS diodes in this voltage range exhibit ~100–500 pF at 0 V bias, no measured or guaranteed CJ value is published for P6KE39C. For high-speed signal line protection, consult TSC's SMAJ or SMC series, which provide documented capacitance values - P6KE39C is intended for power rail and low-frequency I/O protection.
P6KE39C 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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 31.6V
- Voltage - Breakdown (Min):
- 35.1V
- Voltage - Clamping (Max) @ Ipp:
- 56.4V
- Current - Peak Pulse (10/1000µs):
- 11.1A
- 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)
P6KE39C FAQ
1.How can I place an order for P6KE39C through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE39C 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 P6KE39C reliable?
The price and inventory of P6KE39C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE39C is usually 5 days.
3.What payment methods are accepted for P6KE39C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE39C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE39C?
P6KE39C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE39C 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 P6KE39C?
For technical support, including P6KE39C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE39C requirements.
6.How does Aetrix verify that P6KE39C is sourced from the original manufacturer or authorized distributors?
All P6KE39C 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 P6KE39C meets industry standards.
7.What is the process for return or replacement of P6KE39C?
All P6KE39C units undergo pre-shipment inspection (PSI). If there is an issue with P6KE39C, 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 P6KE39C part is unused and in its original packaging.
Return procedure for P6KE39C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE39C Tags
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