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Taiwan Semiconductor Corporation P4KE82CH
- Part No.:
- P4KE82CH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE82CH.pdf
- Description:
- 400W, 82V, BIDIRECTIONAL, TVS
- Quantity:
- Payment:
- Shipping:
Inventory:5,438
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Product details
Overview
P4KE82CH from Taiwan Semiconductor is a unidirectional transient voltage suppressor (TVS) diode designed for high-energy surge protection in DC power rails and signal lines. It features a 82 V nominal breakdown voltage, 400 W peak pulse power rating at 10/1000 μs, clamping voltage of 118 V at 3.5 A peak pulse current, and operates across -55 °C to +175 °C junction temperature range - deployed in automotive power supply input stages and industrial sensor interface protection.
For engineers reviewing the P4KE82CH datasheet, P4KE82CH pinout, P4KE82CH application, or P4KE82CH equivalent, key selection criteria include its AEC-Q101 qualification, DO-41 package compatibility, low leakage (<1 μA at 66.4 V), fast clamping response (<1.0 ps), and precise 73.8–90.2 V breakdown tolerance under 1 mA test current.
Technical Context
The P4KE82CH implements a silicon avalanche diode structure optimized for unidirectional transient suppression. Its clamping behavior is defined by a tightly controlled VBR range (73.8–90.2 V) at 1 mA, with a maximum clamping voltage (VC) of 118 V at 3.5 A IPPM under 10/1000 μs waveform - ensuring predictable overvoltage limiting during ESD or lightning-induced surges.
Thermal performance is rated for 175 °C maximum junction temperature and derated linearly above 25 °C ambient. The device meets UL 94V-0 flammability, JESD201 Class 2 whisker resistance, and RoHS/halogen-free compliance - confirming suitability for automotive-grade PCB environments requiring long-term reliability under thermal cycling and humidity stress.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR @ IT=1 mA | 73.8–90.2 V - defines precise avalanche initiation window for reliable turn-on during transients |
| VWM | 66.4 V - maximum continuous reverse operating voltage before leakage exceeds 1 μA |
| VC @ IPPM=3.5 A | 118 V - clamped voltage during 10/1000 μs surge, limiting downstream IC stress |
| PPK | 400 W - peak pulse power handling capability per ANSI/IEEE C62.35 standard |
| IR @ VWM | <1 μA - ultra-low leakage ensures minimal standby power loss in battery-backed systems |
| TJ Range | −55 °C to +175 °C - supports under-hood automotive and industrial control cabinet deployment |
| Package | DO-204AL (DO-41) - industry-standard axial leaded package with tin-plated leads per J-STD-002 |
Pinout & Package
DO-204AL (DO-41) axial-leaded package with cathode band marking for polarity identification. Leads are pure tin-plated and solderable per J-STD-002; case meets UL 94V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to system ground or lower-potential rail in unidirectional clamp configuration |
| Cathode | Avalanche conduction terminal | Connected to protected line (e.g., 12 V supply rail); marked with band for orientation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including temperature cycling, HTRB, and ESD |
| 400 W surge rating (10/1000 μs) | Withstands ISO 7637-2 Pulse 1/2a/5a transients without degradation in vehicle power networks |
| Clamping voltage ≤118 V | Ensures protected 80 V-rated components remain below absolute maximum ratings during surge events |
| Leakage <1 μA at 66.4 V | Enables use in always-on circuits (e.g., CAN bus wake-up lines) without measurable standby current penalty |
| Response time <1.0 ps | Activates faster than most microsecond-scale transients, preventing voltage overshoot before protection engages |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: 12 V battery-fed ECUs exposed to load dump (ISO 16750-2) and alternator ripple. IC Role / Device Role: Primary overvoltage clamp on main power rail upstream of LDOs and MCU power pins. Use Value: Limits transient excursions to ≤118 V, preserving 16 V-rated input capacitors and avoiding brownout resets. |
Use Scenario: 4–20 mA current loop transmitters interfacing with PLC analog inputs in factory automation. IC Role / Device Role: Bidirectional surge shunt (when used as P4KE82C variant) on signal pair against EFT bursts (IEC 61000-4-4). Use Value: Clamps induced spikes to safe levels while maintaining sub-1 μA leakage for precision current accuracy. |
| LED Driver Overvoltage Clamp | RS-485 Transceiver Bus Protection |
Use Scenario: Constant-current LED drivers in street lighting subjected to lightning-induced surges on AC mains input. IC Role / Device Role: Unidirectional TVS placed across bulk capacitor to absorb 400 W surge energy. Use Value: Prevents capacitor overvoltage failure and MOSFET gate oxide damage during 10/1000 μs transients. |
Use Scenario: RS-485 nodes in building management systems connected to long outdoor cabling. IC Role / Device Role: Differential-mode TVS on A/B lines to suppress common-mode surges coupled onto bus. Use Value: Maintains signal integrity by clamping differential transients within ±118 V window without affecting DC bias. |
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 SMAJ82A | Same DO-214AC (SMA) package; 82 V nominal, 118 V clamping, but rated for 400 W at 10/1000 μs - identical electrical specs but surface-mount only | Requires PCB redesign for SMT vs. through-hole DO-41; unsuitable for legacy through-hole assemblies | Select when migrating to SMT production or space-constrained layouts; verify thermal pad design for 1 W steady-state dissipation |
| ON Semiconductor 1.5KE82A | Higher 1.5 kW peak power rating; same VBR (73.8–90.2 V), but larger DO-201AD package and 125 V clamping at 12 A IPPM | Over-specified for 400 W needs; higher clamping voltage reduces margin for 80 V-rated downstream devices | Choose only if system-level surge testing requires >400 W headroom; otherwise, P4KE82CH offers better cost and board space efficiency |
Compared with SMAJ82A and 1.5KE82A, the P4KE82CH delivers optimal balance of AEC-Q101 qualification, through-hole DO-41 compatibility, precise 118 V clamping, and 400 W surge capacity - making it the preferred choice for automotive and industrial through-hole designs where reliability and legacy assembly compatibility are critical.
Availability
P4KE82CH is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, LED driver modules, and RS-485 communication nodes requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for P4KE82CH 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 - headquartered in Hsinchu, Taiwan, with global distribution and AEC-Q101 validation capabilities.
The P4KE series targets cost-sensitive, high-reliability transient suppression in automotive, industrial, and lighting applications - engineered for robust surge immunity, tight parametric tolerances, and full regulatory compliance without premium packaging premiums.
FAQ
What is the clamping voltage of P4KE82CH at its rated peak pulse current?
The P4KE82CH has a maximum clamping voltage (VC) of 118 V when subjected to its rated peak pulse current of 3.5 A under the standard 10/1000 μs waveform. This value is guaranteed across manufacturing lots and temperature extremes, ensuring consistent overvoltage protection for downstream 80 V-rated components in the P4KE82CH-protected circuit.
Is P4KE82CH suitable for automotive applications?
Yes, P4KE82CH is AEC-Q101 qualified - verified for automotive-grade reliability including temperature cycling, high-temperature reverse bias, and ESD testing. Its −55 °C to +175 °C operating range, DO-41 mechanical robustness, and UL recognition make it appropriate for engine control modules, body electronics, and infotainment power supplies where P4KE82CH is deployed as primary surge protection.
How does the P4KE82CH differ from the P4KE82A variant?
The P4KE82CH is the AEC-Q101 qualified version of the P4KE82 series, indicated by the "H" suffix in the ordering code. Electrically, P4KE82CH shares identical parameters with P4KE82A - including VBR (77.9–86.1 V), VWM (70.1 V), and VC (113 V) - but undergoes additional automotive stress screening. The "CH" suffix confirms P4KE82CH meets automotive quality and traceability requirements beyond standard commercial-grade P4KE82A.
What is the maximum reverse leakage current for P4KE82CH at its working voltage?
The P4KE82CH exhibits a maximum reverse leakage current (ID) of 1 μA when biased at its working stand-off voltage (VWM) of 66.4 V. This ultra-low leakage is measured at 25 °C and remains below 5 μA up to 125 °C - critical for maintaining accuracy in always-on sensor bias networks and minimizing quiescent power loss in battery-powered systems using P4KE82CH.
Can P4KE82CH be used in bidirectional configurations?
No - P4KE82CH is unidirectional. Its cathode-band marking and internal construction support only anode-to-cathode forward conduction and reverse avalanche clamping. For bidirectional protection, the P4KE82C variant (with "C" suffix) must be selected; it provides symmetrical clamping in both polarities and is explicitly designated for ESD and EFT protection on AC-coupled or floating signal lines where P4KE82CH would be electrically inappropriate.
P4KE82CH 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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 66.4V
- Voltage - Breakdown (Min):
- 73.8V
- Voltage - Clamping (Max) @ Ipp:
- 118V
- Current - Peak Pulse (10/1000µs):
- 3.5A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
P4KE82CH FAQ
1.How can I place an order for P4KE82CH through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE82CH 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 P4KE82CH reliable?
The price and inventory of P4KE82CH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE82CH is usually 5 days.
3.What payment methods are accepted for P4KE82CH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE82CH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE82CH?
P4KE82CH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE82CH 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 P4KE82CH?
For technical support, including P4KE82CH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE82CH requirements.
6.How does Aetrix verify that P4KE82CH is sourced from the original manufacturer or authorized distributors?
All P4KE82CH 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 P4KE82CH meets industry standards.
7.What is the process for return or replacement of P4KE82CH?
All P4KE82CH units undergo pre-shipment inspection (PSI). If there is an issue with P4KE82CH, 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 P4KE82CH part is unused and in its original packaging.
Return procedure for P4KE82CH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE82CH Tags
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