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Taiwan Semiconductor Corporation P4KE160A
- Part No.:
- P4KE160A
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE160A.pdf
- Description:
- TVS DIODE 136VWM 219VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:3,701
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Product details
Overview
P4KE160A from Taiwan Semiconductor is a unidirectional 400W transient voltage suppressor (TVS) diode designed for primary-side overvoltage protection in DC power rails and signal lines. It features a 160V nominal breakdown voltage (VBR min/max: 152V–168V), 136V working stand-off voltage (VWM), clamps to ≤219V at 1.9A peak pulse current, and delivers fast response (<1.0ps from 0V to VBR). It is widely used in industrial power supplies and automotive ECU input protection.
For engineers reviewing the P4KE160A datasheet, P4KE160A pinout, P4KE160A application, or P4KE160A equivalent, key selection criteria include clamping voltage margin vs. system rail tolerance, unidirectional polarity marking, DO-41 package thermal derating above 25°C, and compliance with AEC-Q101 for automotive-grade transient immunity.
Technical Context
The P4KE160A operates as a silicon avalanche diode with precise Zener-like breakdown behavior under transient overvoltage conditions. Its low dynamic impedance ensures stable clamping during 10/1000μs surge events, and its <1.0ps response time enables protection of fast-switching circuits before damage occurs.
It is rated for 400W non-repetitive peak pulse power at TA = 25°C, with junction temperature range from –55°C to +175°C and maximum steady-state power dissipation of 1W at TL = 75°C on 5×5 mm copper pads. Reverse leakage remains ≤1μA at 136V VWM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 136 V - Maximum continuous DC or RMS voltage the device blocks without significant leakage |
| VBR @ IT=1mA | 152–168 V - Verified breakdown threshold at 1mA test current; defines minimum clamping onset point |
| VC @ IPPM=1.9A | ≤219 V - Clamped voltage during 10/1000μs surge; must be below protected IC's absolute max rating |
| PPK | 400 W - Peak pulse power handling per single 10/1000μs waveform; determines surge energy absorption |
| IR @ VWM | ≤1 μA - Reverse leakage at stand-off voltage; ensures minimal standby power loss in high-impedance circuits |
| TJ max | +175 °C - Maximum junction temperature; supports operation in under-hood or enclosed industrial environments |
| Package | DO-204AL (DO-41) - Axial-leaded through-hole package with tin-plated leads; compatible with wave soldering per J-STD-002 |
Pinout & Package
DO-204AL (DO-41) axial package with cathode band marking for unidirectional polarity. Leads are pure tin-plated and solderable per J-STD-002. Weight ≈0.300 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Ground reference terminal | Connected to circuit ground or low-side return path; forms clamping path during positive transients |
| Cathode | Protected line terminal | Connected to the line being protected (e.g., +12V rail); avalanche conduction occurs from cathode to anode |
Key Features
| Feature | Design Value |
|---|---|
| 400W surge capability | Handles IEC 61000-4-5 Level 4 (4kV) surges on 50Ω source impedance without degradation |
| <1.0ps response time | Activates before most microcontroller I/O pins can be damaged by ESD or lightning-induced transients |
| AEC-Q101 qualified option | Available in H-suffix variant (P4KE160AH) for automotive applications requiring stress-tested reliability |
| UL 94V-0 molding compound | Self-extinguishing encapsulation meets flammability requirements for safety-critical power systems |
| RoHS & halogen-free | Complies with IEC 61249-2-21; suitable for green manufacturing and end-of-life recycling programs |
Applications
| Industrial Power Supply Input Protection | Automotive Body Control Module (BCM) Inputs |
|---|---|
|
Use Scenario: 24V DC input stage of programmable logic controller (PLC) power supply exposed to load dump and inductive switching noise. IC Role / Device Role / Timing Role: Unidirectional TVS placed between +24V rail and chassis ground to clamp transients exceeding 136V. Use Value: Limits clamping voltage to ≤219V, preserving integrity of downstream 28V-rated DC-DC converters and MCU regulators. |
Use Scenario: LIN bus or sensor supply line in BCM subjected to ISO 7637-2 Pulse 1, 2a, and 5a transients. IC Role / Device Role / Timing Role: Standoff protector on 12V sensor feed line; absorbs negative-going spikes and positive load-dump surges. Use Value: Withstands 400W pulses while maintaining <1μA leakage at 136V, ensuring no impact on low-current sensor bias networks. |
| LED Driver Overvoltage Clamp | Telecom Line Card Surge Protection |
|
Use Scenario: Constant-current LED driver output where open-circuit fault or hot-plug event causes voltage overshoot. IC Role / Device Role / Timing Role: Parallel-connected TVS across LED string to clamp fault voltage before LED reverse breakdown. Use Value: 152–168V VBR range aligns with typical 144V–176V LED string operating windows, enabling precise overvoltage cutoff. |
Use Scenario: Low-voltage analog interface (e.g., RS-485 receiver) on telecom line card exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary-level protection ahead of secondary TVS arrays and common-mode chokes. Use Value: 219V clamping voltage provides ≥20% margin below 275V isolation barrier ratings of optocouplers and isolated transceivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ160A | Same DO-214AC (SMA) package; 160V VBR, 219V [email protected], but lower 400W rating applies only at 25°C with strict derating | Surface-mount alternative requiring PCB rework; lacks axial DO-41 mechanical robustness for high-vibration environments | Select when space-constrained layouts demand SMT assembly and thermal management allows full derating |
| ON Semiconductor 1.5KE160A | Higher 1500W peak power rating but larger DO-201AD (DO-27) package; identical VBR/VC specs and DO-41-compatible lead spacing | Used where higher surge margin is required (e.g., outdoor AC/DC adapters), but requires larger board area and higher mounting torque | Choose for enhanced surge endurance in harsher environments, accepting larger footprint and weight penalty |
Compared with SMAJ160A and 1.5KE160A, the P4KE160A offers optimal balance of axial-mount reliability, industry-standard DO-41 compatibility, and verified 400W performance without requiring layout redesign or thermal oversizing.
Availability
P4KE160A is available at Aetrix Electronics and suitable for industrial power supplies, automotive ECUs, LED drivers, and telecom line cards requiring stable component supply and long-term obsolescence management.
Supply support for P4KE160A 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 with global distribution and AEC-Q101 qualification capabilities.
The P4KE series was developed for cost-effective, high-reliability transient suppression in automotive, industrial, and consumer power systems-emphasizing tight VBR tolerances, low clamping ratios, and robust surge endurance in standard axial packages.
FAQ
What is the maximum clamping voltage of the P4KE160A under standard test conditions?
The P4KE160A clamps to a maximum of 219 V when subjected to a 10/1000μs surge waveform with a peak pulse current of 1.9 A. This value is measured per ANSI/IEEE C62.35 and represents the upper limit of voltage seen by protected circuitry during a defined transient event. The P4KE160A maintains this clamping performance across its specified operating temperature range.
Is the P4KE160A unidirectional or bidirectional, and how is polarity identified?
The P4KE160A is a unidirectional TVS diode, meaning it conducts only during positive transients relative to its cathode terminal. Polarity is marked by a cathode band on the DO-41 body, which must be oriented toward the protected line (e.g., +12V rail), while the anode connects to ground. Bidirectional variants use "CA" suffixes (e.g., P4KE160CA), not applicable to the P4KE160A.
Does the P4KE160A meet automotive qualification standards?
The base P4KE160A is not AEC-Q101 qualified; however, the P4KE160AH variant-identical in electrical specs and DO-41 packaging-is explicitly qualified per AEC-Q101 Rev D for stress testing including HTGB, HTRB, and temperature cycling. For automotive applications, specify the "H" suffix to ensure qualification compliance. The P4KE160A itself is suitable for industrial and commercial use.
What is the reverse leakage current specification for the P4KE160A at its working voltage?
The P4KE160A exhibits a maximum reverse leakage current (ID) of 1 μA when biased at its working stand-off voltage (VWM) of 136 V, measured at 25°C. This ultra-low leakage ensures minimal power loss in high-impedance monitoring circuits and preserves battery life in always-on systems. Leakage remains within specification up to +175°C junction temperature.
Can the P4KE160A be used in parallel for higher surge current handling?
No-P4KE160A devices should not be paralleled due to inherent VBR mismatch (±5% tolerance), which causes uneven current sharing and potential thermal runaway. For higher surge capability, select a single higher-rated device such as the 1.5KE160A (1500W) or verify derated performance using manufacturer-recommended derating curves. The P4KE160A is designed for standalone use in its specified 400W rating.
P4KE160A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-204AL, DO-41, Axial
- Series:
- P4KE
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 136V
- Voltage - Breakdown (Min):
- 152V
- Voltage - Clamping (Max) @ Ipp:
- 219V
- Current - Peak Pulse (10/1000µs):
- 1.9A
- Power - Peak Pulse:
- 400W
- 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-204AL (DO-41)
P4KE160A FAQ
1.How can I place an order for P4KE160A through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE160A 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 P4KE160A reliable?
The price and inventory of P4KE160A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE160A is usually 5 days.
3.What payment methods are accepted for P4KE160A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE160A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE160A?
P4KE160A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE160A 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 P4KE160A?
For technical support, including P4KE160A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE160A requirements.
6.How does Aetrix verify that P4KE160A is sourced from the original manufacturer or authorized distributors?
All P4KE160A 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 P4KE160A meets industry standards.
7.What is the process for return or replacement of P4KE160A?
All P4KE160A units undergo pre-shipment inspection (PSI). If there is an issue with P4KE160A, 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 P4KE160A part is unused and in its original packaging.
Return procedure for P4KE160A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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