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Taiwan Semiconductor Corporation P4KE82C
- Part No.:
- P4KE82C
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE82C.pdf
- Description:
- 400W, 82V, BIDIRECTIONAL, TVS
- Quantity:
- Payment:
- Shipping:
Inventory:9,027
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Product details
Overview
P4KE82C from Taiwan Semiconductor is a bidirectional transient voltage suppressor (TVS) diode designed for high-energy surge protection in DC power rails and signal lines. It features a 82V nominal breakdown voltage, 400W peak pulse power rating at 10/1000μs waveform, clamping voltage of 118V at 3.5A peak pulse current, and operates across –55°C to +175°C junction temperature range - deployed in automotive lighting control modules and industrial PLC I/O protection circuits.
For engineers reviewing the P4KE82C datasheet, P4KE82C pinout, P4KE82C application, or P4KE82C equivalent, key selection criteria include its bidirectional clamping behavior, DO-41 package compatibility with through-hole PCB layouts, low leakage (<1μA @ 66.4V), and AEC-Q101 qualification for automotive-grade reliability validation.
Technical Context
The P4KE82C implements a silicon avalanche diode structure optimized for fast transient suppression with sub-nanosecond response time (<5.0ns for bidirectional mode) and low dynamic impedance. Its bidirectional configuration enables symmetrical clamping in AC-coupled or floating signal paths without polarity dependency.
It meets ANSI/IEEE C62.35 standards for transient suppression, supports 10/1000μs surge waveforms up to 400W, and maintains stable VBR (73.8–90.2V) with ±0.105%/°C temperature coefficient - ensuring predictable clamping performance under thermal stress in engine bay or industrial enclosure environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Voltage | 82 V - defines rated standoff voltage threshold before avalanche conduction begins |
| Breakdown Voltage (VBR) | 73.8–90.2 V @ 1 mA - ensures reliable turn-on within specified tolerance band during overvoltage events |
| Working Stand-off Voltage (VWM) | 66.4 V - maximum continuous reverse voltage the device blocks without significant leakage |
| Clamping Voltage (VC) | 118 V @ 3.5 A - peak voltage seen by protected circuit during 400W 10/1000μs surge |
| Peak Pulse Power (PPK) | 400 W - energy-handling capability for transient immunity per IEC 61000-4-5 Level 4 compliance |
| Junction Temperature Range | –55°C to +175°C - supports operation in under-hood automotive and high-ambient industrial environments |
| Leakage Current (ID) | <1 μA @ 66.4 V - minimizes standby power loss and avoids false triggering in low-power systems |
Pinout & Package
DO-204AL (DO-41) axial-leaded package with cathode band marking omitted for bidirectional operation; leads are pure tin plated, solderable per J-STD-002, and meet JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (reversible) | Bidirectional avalanche junction | Either terminal serves as anode or cathode depending on transient polarity - no fixed polarity required |
| Lead 1 (Anode-end) | Terminal connection | Standard axial lead; mechanically identical to Lead 2 - interchangeable in layout |
| Lead 2 (Cathode-end) | Terminal connection | No functional distinction from Lead 1 in P4KE82C; symmetric construction eliminates orientation constraints |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals or floating buses without external polarity management |
| 400W surge rating (10/1000μs) | Meets IEC 61000-4-5 surge immunity requirements for industrial and automotive power inputs |
| <5.0 ns response time | Clamps transients before sensitive downstream ICs experience damaging overvoltage stress |
| AEC-Q101 qualified | Validated for automotive applications including lighting, body control, and sensor interfaces |
| UL Recognized (E-326243) | Supports safety-certified designs requiring third-party flammability and reliability validation |
Applications
| Automotive LED Headlamp Driver Protection | Industrial PLC Analog Input Protection |
|---|---|
Use Scenario: Protects LED driver ICs from load-dump and jump-start surges in 12V/24V vehicle electrical systems. IC Role / Device Role / Timing Role: Bidirectional TVS placed across input rail to clamp ±100V transients within 5ns. Use Value: Prevents latch-up or gate oxide damage in buck controllers and MOSFET drivers during ISO 7637-2 pulse 5a/b events. |
Use Scenario: Shields 4–20mA analog input front-end op-amps from EFT bursts and field wiring faults. IC Role / Device Role / Timing Role: Clamps induced spikes on current-loop terminals before they reach precision ADCs or isolators. Use Value: Maintains signal integrity and avoids calibration drift caused by transient-induced offset shifts in instrumentation amplifiers. |
| Smart Building HVAC Sensor Interface | Outdoor PoE-Powered Security Camera Port |
Use Scenario: Safeguards temperature/humidity sensor ICs connected to long-wire runs exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Bidirectional suppression on differential sensor lines (e.g., RS-485 or analog outputs). Use Value: Eliminates need for separate unidirectional devices per line, reducing BOM count and board space in compact nodes. |
Use Scenario: Protects Ethernet PHY and PoE interface ICs from surges entering via outdoor cabling. IC Role / Device Role / Timing Role: Placed on both data pairs and power lines to clamp common-mode and differential transients. Use Value: Enables compliance with IEEE 802.3af/at surge immunity requirements while maintaining signal integrity at 100 Mbps. |
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 SMAJ85CA | DO-214AC (SMA) package; 85V nominal; 400W rating; 121V clamping @ 3.3A | Surface-mount only; requires rework of PCB layout; higher clamping voltage than P4KE82C | Preferred where space-constrained SMT assembly is mandatory and 3V higher clamping is acceptable |
| Vishay 1.5KE82CA | DO-201AE package; same 82V nominal; 1500W rating; 135V clamping @ 11.1A | Higher power handling but larger footprint; slower thermal response due to higher junction-to-case resistance | Selected when system-level surge tests exceed 400W or require longer pulse duration immunity |
Compared with SMAJ85CA and 1.5KE82CA, the P4KE82C offers through-hole DO-41 compatibility for legacy designs, tighter clamping (118V vs. 121V/135V), and lower thermal mass for faster recovery - making it optimal for cost-sensitive, medium-surge automotive and industrial modules.
Availability
P4KE82C is available at Aetrix Electronics and suitable for automotive lighting control, industrial PLC I/O protection, smart building sensor interfaces, and outdoor PoE-powered camera ports requiring stable component supply across extended product lifecycles.
Supply support for P4KE82C 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 - headquartered in Hsinchu, Taiwan, with global distribution and AEC-Q101 certification capabilities.
The P4KE series targets cost-effective, high-reliability transient suppression for automotive, industrial, and consumer electronics - engineered for robustness in harsh environments and simplified integration into legacy through-hole and hybrid PCB assemblies.
FAQ
What is the polarity configuration of the P4KE82C?
The P4KE82C is a bidirectional TVS diode with symmetrical avalanche characteristics - neither terminal is designated anode or cathode. This allows installation in either orientation on PCBs, eliminating polarity-check steps during assembly and enabling protection of AC-coupled or floating signal paths without redesign.
Does the P4KE82C meet automotive qualification standards?
Yes, the P4KE82C is AEC-Q101 qualified when ordered with the "H" suffix (e.g., P4KE82CH). The base P4KE82C variant shares identical electrical and thermal specifications but lacks formal automotive qualification documentation - design-in for automotive applications requires verification of the H-suffix version's test reports.
What is the maximum clamping voltage of the P4KE82C under surge conditions?
The P4KE82C has a maximum clamping voltage (VC) of 118 V at 3.5 A peak pulse current (IPPM) under the standard 10/1000μs waveform. This value is guaranteed across the full operating temperature range and defines the upper voltage limit imposed on protected circuitry during a 400W transient event.
How does the P4KE82C compare to the P4KE82A variant?
The P4KE82A has tighter breakdown voltage tolerance (77.9–86.1 V vs. 73.8–90.2 V for P4KE82C) and slightly higher working stand-off voltage (70.1 V vs. 66.4 V), resulting in lower leakage and improved noise immunity. However, the P4KE82C offers broader VBR coverage - beneficial where manufacturing variation or temperature drift must be accommodated without derating.
Can the P4KE82C be used in surface-mount designs?
No - the P4KE82C is exclusively packaged in DO-204AL (DO-41), a through-hole axial-leaded format. For surface-mount applications, engineers should consider functionally similar alternatives such as SMAJ85CA (DO-214AC) or SMCJ85CA (DO-214AB), which maintain comparable voltage ratings and surge capability but require PCB layout changes.
P4KE82C 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
P4KE82C FAQ
1.How can I place an order for P4KE82C through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE82C 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 P4KE82C reliable?
The price and inventory of P4KE82C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE82C is usually 5 days.
3.What payment methods are accepted for P4KE82C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE82C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE82C?
P4KE82C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE82C 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 P4KE82C?
For technical support, including P4KE82C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE82C requirements.
6.How does Aetrix verify that P4KE82C is sourced from the original manufacturer or authorized distributors?
All P4KE82C 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 P4KE82C meets industry standards.
7.What is the process for return or replacement of P4KE82C?
All P4KE82C units undergo pre-shipment inspection (PSI). If there is an issue with P4KE82C, 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 P4KE82C part is unused and in its original packaging.
Return procedure for P4KE82C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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