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Taiwan Semiconductor Corporation P6KE39
- Part No.:
- P6KE39
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE39.pdf
- Description:
- 600W, 39V, UNIDIRECTIONAL, TVS
- Quantity:
- Payment:
- Shipping:
Inventory:4,452
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Product details
Overview
P6KE39 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 nominal breakdown voltage of 39 V, clamps transients to ≤56.4 V at 11.1 A peak surge current, and delivers fast response (<1.0 ps from 0 V to VBR), with stand-off voltage of 31.6 V and leakage <1 µA at rated VWM. It is widely used in automotive body electronics and industrial power supply input stages.
For engineers reviewing the P6KE39 datasheet, P6KE39 pinout, P6KE39 application, or P6KE39 equivalent, key selection criteria include its DO-204AC (DO-15) axial package, unidirectional polarity marking, 175°C maximum junction temperature, and compliance with AEC-Q101 (when ordered as P6KE39H), making it suitable for under-hood and high-reliability embedded systems.
Technical Context
The P6KE39 operates as a silicon avalanche diode, leveraging controlled reverse-biased breakdown to shunt transient energy away from sensitive downstream circuitry. Its low dynamic impedance ensures effective clamping during 10/1000 µs surge events, while its <1.0 ps response time enables protection against fast-rising ESD and EFT pulses before IC damage occurs.
It is rated for non-repetitive peak pulse power of 600 W, steady-state power dissipation of 5 W at 75°C (with 9.5 mm lead length), and withstands junction temperatures from –55°C to +175°C. The device uses a single-die construction in a DO-204AC molded package with pure tin-plated leads compliant with J-STD-002 solderability standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 35.1 V / 42.9 V at 1 mA test current - defines guaranteed avalanche onset range for reliable triggering |
| VWM | 31.6 V - maximum continuous reverse working voltage before significant leakage begins |
| VC @ IPP | 56.4 V at 11.1 A peak pulse - clamping voltage seen by protected circuit during worst-case 10/1000 µs surge |
| IPP (max) | 11.1 A - peak surge current capability under standard 10/1000 µs waveform |
| PPK | 600 W - non-repetitive surge power handling capacity, derated above 25°C per Fig.2 |
| TJ(max) | +175°C - maximum junction temperature enabling operation in under-hood or high-ambient industrial environments |
| Leakage @ VWM | <1 µA - negligible standby current draw, critical for low-power battery-backed systems |
Pinout & Package
Package: DO-204AC (DO-15), axial-leaded, epoxy-molded case meeting UL 94V-0 flammability rating. Cathode indicated by band on body; anode is unmarked end. Leads are pure tin-plated, solderable per J-STD-002, and pass JESD201 Class 2 whisker testing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path) in unidirectional configuration |
| Cathode (banded end) | Avalanche clamping terminal | Connected to protected line (e.g., 24 V rail); conducts when transient exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| 600 W surge rating (10/1000 µs) | Enables robust protection against ISO 7637-2 Pulse 1/2a/3a and IEC 61000-4-5 Level 3 surges in 24 V systems |
| Clamping voltage ≤56.4 V | Keeps downstream 3.3 V/5 V/12 V logic and microcontrollers within safe absolute maximum ratings during transients |
| Response time <1.0 ps | Activates before most ESD events (e.g., HBM >15 kV) can couple into IC pins |
| AEC-Q101 qualified option (P6KE39H) | Validated for automotive applications including engine control modules, lighting drivers, and body control units |
| RoHS & halogen-free (IEC 61249-2-21) | Meets global environmental compliance requirements for industrial and consumer electronics manufacturing |
Applications
| Automotive Power Rail Protection | Industrial PLC Input Protection |
|---|---|
Use Scenario: Protecting 24 V supply inputs in vehicle body control modules from load dump and inductive switching spikes. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed directly at connector entry point before DC-DC converter and MCU power rails. Use Value: Limits transient voltage to ≤56.4 V, preventing latch-up or permanent damage to 36 V-rated regulators and 5 V LDOs downstream. | Use Scenario: Safeguarding digital input channels of programmable logic controllers exposed to field wiring surges. IC Role / Device Role / Timing Role: Front-end TVS element on optocoupler or Schmitt-trigger input stage, absorbing induced transients from relay coils or motor leads. Use Value: Maintains signal integrity by clamping fast EFT bursts (IEC 61000-4-4) without false triggering due to sub-nanosecond response. |
| LED Driver Overvoltage Clamp | ESD-Sensitive Sensor Interface |
Use Scenario: Preventing catastrophic failure of constant-current LED drivers subjected to 12 V/24 V bus transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed across driver input terminals to divert surge energy to ground. Use Value: Withstands 600 W surges while holding clamping voltage below driver IC's absolute max rating (typically 60 V), extending product lifetime. | Use Scenario: Shielding analog sensor outputs (e.g., temperature, pressure) connected via long cables in factory automation. IC Role / Device Role / Timing Role: Low-leakage (≤1 µA) TVS mounted at PCB edge connector to suppress ESD coupling before signal conditioning op-amps. Use Value: Prevents op-amp input stage damage from ±8 kV contact ESD (IEC 61000-4-2) without introducing offset error or noise in mV-level signals. |
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 SMAJ39A | Same DO-214AC (SMA) package; 39 V nominal, 56.4 V clamping, but 400 W rating (vs. 600 W) | Lower surge rating limits use in high-energy automotive load dump scenarios | Select when board space constraints favor surface-mount and surge demands are ≤400 W |
| ON Semiconductor 1.5KE39A | Same DO-201AD package; identical 39 V/56.4 V specs but rated for 1500 W (10/1000 µs) | Higher power handling supports harsher industrial surge environments (e.g., motor drives) | Choose when system-level surge testing requires >600 W margin or legacy 1.5KE footprint compatibility is needed |
Compared with P6KE39, SMAJ39A offers smaller SMT footprint but sacrifices 33% surge power headroom, while 1.5KE39A provides 2.5× higher pulse power in a larger axial package-enabling design flexibility across cost, space, and ruggedness trade-offs.
Availability
P6KE39 is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O modules, LED lighting drivers, and sensor interface circuits requiring stable component supply and long-term manufacturability.
Supply support for P6KE39 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 Taiwanese semiconductor manufacturer specializing in discrete power devices, TVS diodes, rectifiers, and MOSFETs, with global distribution and AEC-Q101 qualification capabilities.
The P6KE series belongs to TSC's high-reliability transient suppression portfolio, engineered specifically for cost-sensitive yet robust overvoltage protection in automotive, industrial, and consumer power systems where DO-15 form factor and proven surge immunity are essential.
FAQ
What is the maximum clamping voltage of the P6KE39 under standard surge conditions?
The P6KE39 exhibits a maximum clamping voltage (VC) of 56.4 V when subjected to its rated peak pulse current of 11.1 A using the 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and guarantees that protected circuitry will not experience voltages exceeding this threshold during standardized surge events, ensuring compatibility with common 36 V and 40 V rated components downstream.
Is the P6KE39 suitable for automotive applications?
Yes-the P6KE39H variant is explicitly AEC-Q101 qualified for automotive use, validated for temperature cycling, humidity, mechanical shock, and surge robustness. While the base P6KE39 meets all electrical and thermal specifications required for under-hood and body electronics, only the "H" suffix version carries formal qualification documentation required for Tier 1 automotive BOMs.
What is the difference between P6KE39 and P6KE39A?
The P6KE39A offers tighter breakdown voltage tolerance: 37.1–41.0 V versus 35.1–42.9 V for the P6KE39, achieved via enhanced process control. Both share identical clamping voltage (56.4 V / 53.9 V), stand-off voltage (31.6 V / 33.3 V), and surge rating. The "A" suffix indicates improved VBR consistency, beneficial in precision clamp designs where predictable turn-on is critical.
Can the P6KE39 be used in bidirectional configurations?
No-the P6KE39 is a unidirectional TVS diode intended for DC line protection with defined polarity (cathode band). For bidirectional AC or data-line protection, select the CA-suffixed variant (e.g., P6KE39CA) or bipolar types like P6KE39C, which provide symmetrical clamping in both directions and lack polarity marking.
What packaging options are available for the P6KE39?
The P6KE39 is supplied in DO-204AC (DO-15) axial package, available in two standard formats: 3,500-piece tape-and-reel (P6KE39) and 1,500-piece ammo box (P6KE39A0G). Tape-and-reel is optimized for automated SMT placement with axial orientation feeders; ammo box supports manual or semi-automated through-hole assembly.
P6KE39 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):
- 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)
P6KE39 FAQ
1.How can I place an order for P6KE39 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE39 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 P6KE39 reliable?
The price and inventory of P6KE39 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE39 is usually 5 days.
3.What payment methods are accepted for P6KE39?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE39 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE39?
P6KE39 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE39 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 P6KE39?
For technical support, including P6KE39 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE39 requirements.
6.How does Aetrix verify that P6KE39 is sourced from the original manufacturer or authorized distributors?
All P6KE39 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 P6KE39 meets industry standards.
7.What is the process for return or replacement of P6KE39?
All P6KE39 units undergo pre-shipment inspection (PSI). If there is an issue with P6KE39, 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 P6KE39 part is unused and in its original packaging.
Return procedure for P6KE39:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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