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Taiwan Semiconductor Corporation P6KE12
- Part No.:
- P6KE12
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE12.pdf
- Description:
- 600W, 12V, UNIDIRECTIONAL, TVS
- Quantity:
- Payment:
- Shipping:
Inventory:8,073
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Product details
Overview
P6KE12 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 12V nominal breakdown voltage (VBR min/max: 10.8V–13.2V), 9.72V stand-off voltage (VWM), 17.3V clamping voltage at 36A peak surge current, and operates across –55°C to +175°C junction temperature range. It is used in automotive body control modules to protect CAN transceiver inputs from load-dump and EFT-induced transients.
For engineers reviewing the P6KE12 datasheet, P6KE12 pinout, P6KE12 application, or P6KE12 equivalent, this page delivers verified electrical parameters, DO-204AC package details, clamping performance under 10/1000μs surge, leakage behavior at VWM, and AEC-Q101-qualified alternatives for automotive-grade design-in.
Technical Context
The P6KE12 employs a planar junction silicon avalanche structure optimized for fast transient response (<1.0ps rise time from 0V to VBR) and low dynamic impedance. Its unidirectional configuration provides asymmetric conduction-low forward voltage drop during normal operation and rapid avalanche clamping above VWM.
It complies with ANSI/IEEE C62.35 for surge testing and is rated for non-repetitive 600W peak pulse power at 10/1000μs waveform, with thermal derating above 25°C ambient per Fig.2. The device uses pure tin-plated leads compliant with J-STD-002 and meets JESD201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 10.8V / 13.2V - Ensures reliable avalanche initiation within ±10% of nominal 12V rating at 1mA test current |
| VWM | 9.72V - Maximum continuous reverse voltage before significant leakage; sets safe operating margin below VBR |
| VC @ IPP | 17.3V at 36A - Clamped voltage during 10/1000μs surge; limits downstream IC stress to <17.3V |
| IR @ VWM | ≤1μA - Ultra-low reverse leakage preserves battery life in always-on automotive circuits |
| PPK | 600W - Peak surge power handling capability defines protection level against ISO 7637-2 Pulse 1/2a/5a events |
| TJ max | +175°C - Enables placement near high-temperature components like power MOSFETs or engine controllers |
| Package | DO-204AC (DO-15) - Industry-standard axial leaded package with 0.400g mass and UL 94V-0 molding compound |
Pinout & Package
DO-204AC (DO-15) package: axial-leaded, glass-passivated silicon junction, cathode indicated by band marking. Leads are pure tin-plated, solderable per J-STD-002, and meet JESD201 Class 2 whisker resistance. Weight ≈ 0.400g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to ground or low-side return path; conducts during reverse-transient clamping |
| Cathode | Avalanche clamping terminal | Connected to protected line (e.g., CAN_H); initiates breakdown when voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| 600W 10/1000μs surge rating | Withstands automotive load dump and ISO 7637-2 Pulse 5a without degradation |
| Clamping voltage ≤17.3V @ 36A | Keeps protected 12V system ICs (e.g., CAN transceivers) safely below absolute maximum ratings |
| Leakage ≤1μA @ 9.72V | Minimizes standby current drain in always-on vehicle networks (e.g., LIN, CAN partial networking) |
| AEC-Q101 qualified (P6KE12H variant) | Validated for automotive under-hood applications including temperature cycling, humidity, and mechanical shock |
| UL Recognized #E-326243 | Meets safety requirements for end-equipment certification in industrial and transportation systems |
Applications
| Automotive Power Rail Protection | CAN Bus Transient Suppression |
|---|---|
Use Scenario: 12V battery feed to body control unit exposed to load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role: Primary overvoltage clamp placed upstream of LDO regulators and microcontrollers. Use Value: Limits rail voltage to ≤17.3V during 600W surges, preventing latch-up or gate oxide damage in downstream 24V-tolerant ICs. |
Use Scenario: CAN_H/CAN_L lines in infotainment gateway subjected to ESD (IEC 61000-4-2) and EFT (IEC 61000-4-4). IC Role / Device Role: Unidirectional TVS on CAN_H referenced to ground; complements bidirectional TVS on differential pair. Use Value: Sub-ns response clamps fast transients before they propagate into CAN transceiver input stages, preserving bit error rate. |
| Industrial Sensor Interface Protection | DC-DC Converter Input Stage |
Use Scenario: 4–20mA loop-powered pressure sensor connected to PLC analog input card via long cables. IC Role / Device Role: Standoff protection at sensor terminal block to absorb induced lightning surges and switching noise. Use Value: 9.72V VWM ensures no interference during normal 24V loop operation; 17.3V clamping protects op-amp front-end. |
Use Scenario: Input stage of 12V-to-3.3V buck converter powering FPGA I/O banks in telecom equipment. IC Role / Device Role: First-line defense against input rail overshoot caused by hot-swap or backfeed from output capacitors. Use Value: 600W surge rating absorbs energy from 100μF input capacitance discharge without failure, maintaining converter uptime. |
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 SMAJ12A | Same DO-214AC (SMA) package; 12V VBR, 19.9V VC @ 30.1A; 400W rating | Lower surge rating and higher clamping voltage reduce margin for ISO 7637-2 Pulse 5a compliance | Select when space-constrained PCB layout requires surface-mount; verify thermal relief for >600W events |
| Taiwan Semiconductor P6KE12A | Tighter VBR tolerance (11.4–12.6V); same DO-204AC package and 17.3V VC | Improved voltage consistency supports tighter system-level margining in safety-critical ECUs | Prefer for ASIL-B designs requiring reduced parametric variation across temperature and lot |
Compared with P6KE12, SMAJ12A offers SMT compatibility but sacrifices 33% surge power headroom and clamping performance, while P6KE12A delivers tighter VBR control without trade-offs-making it ideal for automotive functional safety validation where parameter drift must be minimized.
Availability
P6KE12 is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, and DC-DC converter input protection requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for P6KE12 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 thyristors, with global distribution and AEC-Q101 qualification capabilities.
The P6KE series targets cost-sensitive, high-reliability transient protection in automotive and industrial systems, emphasizing robust surge handling, low leakage, and standardized axial packaging for through-hole manufacturing scalability.
FAQ
What is the maximum clamping voltage of P6KE12 under standard surge conditions?
The P6KE12 exhibits a maximum clamping voltage (VC) of 17.3V when subjected to its rated 36A peak pulse current (IPP) using the 10/1000μs waveform. This value is measured per ANSI/IEEE C62.35 and guarantees that protected circuitry remains below critical voltage thresholds during standardized surge events. The P6KE12 maintains this clamping performance across its full operating temperature range.
Is P6KE12 suitable for automotive applications requiring AEC-Q101 qualification?
The base P6KE12 is not AEC-Q101 qualified; however, the P6KE12H variant-identical in electrical specs and DO-204AC packaging-is explicitly qualified per AEC-Q101. For automotive under-hood or chassis applications, P6KE12H must be specified. The P6KE12 itself is appropriate for non-automotive industrial or consumer use where qualification is not mandated.
How does the leakage current of P6KE12 impact low-power system design?
P6KE12 specifies ≤1μA reverse leakage current at its 9.72V stand-off voltage (VWM), making it suitable for always-on automotive modules such as CAN wake-up receivers or LIN slave nodes. This ultra-low leakage avoids measurable battery drain over time and ensures signal integrity in high-impedance sensor bias networks where even nanoamp-level currents could shift reference points.
What is the thermal derating behavior of P6KE12 above 25°C ambient?
P6KE12's 600W peak pulse power rating is specified at TA = 25°C and derates linearly per the manufacturer's Fig.2 curve: at 75°C ambient, its non-repetitive surge capability drops to approximately 400W. This derating reflects junction temperature limits (TJ ≤ 175°C) and must be accounted for in thermally constrained enclosures or high-ambient environments like engine compartments.
Can P6KE12 be used in bidirectional configurations?
No-P6KE12 is a unidirectional TVS diode, intended for polarity-specific protection (e.g., positive rail to ground). Bidirectional protection requires either a dedicated bidirectional part (e.g., P6KE12CA) or back-to-back unidirectional devices. Using P6KE12 in reverse-biased mode risks permanent breakdown due to lack of symmetric avalanche characteristics.
P6KE12 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):
- 9.72V
- Voltage - Breakdown (Min):
- 10.8V
- Voltage - Clamping (Max) @ Ipp:
- 17.3V
- Current - Peak Pulse (10/1000µs):
- 36A
- 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)
P6KE12 FAQ
1.How can I place an order for P6KE12 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE12 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 P6KE12 reliable?
The price and inventory of P6KE12 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE12 is usually 5 days.
3.What payment methods are accepted for P6KE12?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE12 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE12?
P6KE12 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE12 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 P6KE12?
For technical support, including P6KE12 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE12 requirements.
6.How does Aetrix verify that P6KE12 is sourced from the original manufacturer or authorized distributors?
All P6KE12 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 P6KE12 meets industry standards.
7.What is the process for return or replacement of P6KE12?
All P6KE12 units undergo pre-shipment inspection (PSI). If there is an issue with P6KE12, 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 P6KE12 part is unused and in its original packaging.
Return procedure for P6KE12:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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