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Vishay General Semiconductor - Diodes Division P4KE82-E3/54
- Part No.:
- P4KE82-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE82-E3/54.pdf
- Description:
- TVS DIODE 66.4VWM 118VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:9,898
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Product details
Overview
P4KE82-E3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for clamping voltage transients on power and signal lines. It features a 70.1 V stand-off voltage (VWM), 77.9–86.1 V breakdown voltage (VBR) at 1 mA, 400 W peak pulse power (10/1000 μs), and clamps to ≤113 V at 3.5 A peak pulse current - deployed in automotive sensor protection and industrial I/O interface circuits.
For engineers reviewing the P4KE82-E3/54 datasheet, P4KE82-E3/54 pinout, P4KE82-E3/54 application, or P4KE82-E3/54 equivalent, key selection criteria include verified unidirectional polarity, DO-41 mechanical compatibility, AEC-Q101 qualification status, thermal resistance (RθJL = 66 °C/W), and clamping performance under 10/1000 μs surge conditions.
Technical Context
This TVS diode operates as a voltage-clamping protection device with glass-passivated junction and low incremental surge resistance. Its bidirectional counterpart uses "CA" suffix (e.g., P4KE82CA); P4KE82-E3/54 is strictly unidirectional, with cathode marked by color band and forward voltage of 3.5 V at 25 A.
It delivers 400 W peak pulse power per 10/1000 μs waveform at TA = 25 °C, derating linearly above 25 °C per Fig. 2, and supports 40 A non-repetitive forward surge (8.3 ms half-sine) - validated for use in automotive-grade systems requiring AEC-Q101 compliance and UL 94 V-0 molded epoxy housing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 70.1 V - maximum continuous reverse operating voltage before conduction begins |
| VBR (Breakdown Voltage) | 77.9–86.1 V at 1 mA - ensures reliable triggering during transient events without false clamping |
| VC (Clamping Voltage) | ≤113 V at IPPM = 3.5 A - limits downstream component stress during 10/1000 μs surges |
| PPPM (Peak Pulse Power) | 400 W - sustains high-energy transients common in automotive load-dump and inductive switching |
| IFSM (Surge Current) | 40 A (8.3 ms half-sine) - handles repetitive inrush and fault currents in power rail protection |
| TJmax | 175 °C - enables operation in under-hood automotive environments and industrial enclosures |
| RθJL | 66 °C/W - defines thermal path efficiency from junction to lead, critical for PCB trace heat sinking |
Pinout & Package
Package: DO-41 (DO-204AL), axial-leaded, molded epoxy body with matte tin-plated leads; meets UL 94 V-0 flammability rating and JESD 22-B102 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., GND) in unidirectional clamp configuration |
| Cathode | Reverse-biased clamping terminal | Marked with color band; connected to protected line (e.g., 12 V rail or signal input) |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling |
| 400 W peak pulse power (10/1000 μs) | Protects against ISO 7637-2 Pulse 1, 2a, 3a/b, and IEC 61000-4-5 surge events |
| AEC-Q101 qualified (E3 suffix variant) | Validated for automotive electronics including engine control modules and ADAS sensor interfaces |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (<1 ns response) |
| UL 94 V-0 molding compound | Meets flame-retardancy requirements for enclosed industrial and transportation equipment |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., temperature, pressure) from load-dump and ESD events in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional clamping element placed between signal line and ground, triggered only during overvoltage. Use Value: Limits transient voltage to ≤113 V, preserving integrity of 5 V or 3.3 V interface ICs while maintaining signal fidelity. |
Use Scenario: Safeguarding PLC digital input modules and RS-485 transceivers against inductive kickback from solenoids and relays. IC Role / Device Role / Timing Role: Standoff-mode protector on field-side signal lines, absorbing energy before it reaches isolation barrier or controller. Use Value: Withstands 40 A surge current and 400 W pulses, enabling robust operation in factory automation with frequent switching loads. |
| Power Supply Rail Clamping | Consumer Device USB Port Protection |
Use Scenario: Secondary overvoltage protection on 12 V/24 V DC power rails feeding microcontrollers and motor drivers in embedded systems. IC Role / Device Role / Timing Role: Fast-response shunt device that activates within nanoseconds to clamp supply rail spikes. Use Value: Clamps to 113 V at 3.5 A, preventing latch-up or damage to downstream regulators and logic ICs during surge events. |
Use Scenario: Cost-effective ESD and surge suppression on USB 2.0 VBUS and D+/D− lines in set-top boxes and smart home hubs. IC Role / Device Role / Timing Role: Unidirectional TVS on VBUS line (cathode to VBUS, anode to GND) to suppress positive-going transients. Use Value: Meets IEC 61000-4-2 Level 4 (±15 kV air, ±8 kV contact) when combined with series impedance, leveraging 70.1 V VWM margin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ80A | DO-214AA package, 80 V VWM, 400 W PPPM, lower RθJA (50 °C/W) but no AEC-Q101 qualification | Suitable for space-constrained PCBs; lacks automotive qualification and higher thermal resistance to lead | Select SMBJ80A only for commercial-grade consumer or industrial designs where AEC-Q101 is not required. |
| P6KE82A | Same DO-41 package, identical VWM/VBR/VC, but rated for 600 W PPPM (10/1000 μs) and 5.0 V VF at 25 A | Higher surge capacity ideal for heavy-duty industrial power supplies; same footprint allows drop-in upgrade if layout permits higher power dissipation | Choose P6KE82A when system-level surge testing exceeds 400 W requirements or when legacy DO-41 footprint must be retained. |
Compared with SMBJ80A and P6KE82A, P4KE82-E3/54 offers AEC-Q101 qualification and DO-41 compatibility with verified 400 W clamping performance - making it optimal for cost-sensitive automotive and industrial applications where qualification and form factor are mandatory.
Availability
P4KE82-E3/54 is available at Aetrix Electronics and suitable for automotive sensor protection, industrial I/O interface hardening, and power supply rail clamping requiring stable component supply across production lifecycles.
Supply support for P4KE82-E3/54 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive-grade validation.
The P4KE series belongs to Vishay's TRANSZORB® TVS family, engineered specifically for robust transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where failure modes must be mitigated at the component level.
FAQ
What is the polarity configuration of P4KE82-E3/54?
P4KE82-E3/54 is a unidirectional TVS diode, with cathode identified by a color band on the DO-41 package body. It conducts only in forward bias and clamps reverse transients - unlike bidirectional variants (e.g., P4KE82CA) which lack marking and conduct symmetrically. This polarity is confirmed in the Vishay datasheet section "Polarity" and electrical test conditions.
Is P4KE82-E3/54 qualified for automotive applications?
Yes, P4KE82-E3/54 carries the E3 suffix, indicating RoHS-compliant commercial grade with AEC-Q101 qualification per Vishay documentation. The "HE3" variant adds enhanced whisker resistance, but E3 itself satisfies AEC-Q101 stress tests for temperature cycling, humidity, and surge endurance - making P4KE82-E3/54 suitable for automotive ECU and sensor module designs.
What is the clamping voltage of P4KE82-E3/54 at its rated peak pulse current?
The clamping voltage (VC) of P4KE82-E3/54 is guaranteed ≤113 V at IPPM = 3.5 A, measured under standardized 10/1000 μs waveform conditions. This value is specified in the "ELECTRICAL CHARACTERISTICS" table of the Vishay datasheet (Document Number: 88365) and defines the maximum voltage seen by protected circuitry during surge events.
Can P4KE82-E3/54 replace P4KE82A in existing designs?
Yes - P4KE82-E3/54 is a direct replacement for P4KE82A, sharing identical electrical specifications, DO-41 package, and unidirectional functionality. The "-E3/54" suffix denotes RoHS-compliant packaging in 13″ paper tape and reel (5500 pcs), with no change to VWM, VBR, VC, or thermal characteristics. No PCB or schematic modification is needed for migration.
What is the maximum operating junction temperature for P4KE82-E3/54?
The maximum operating junction temperature (TJmax) for P4KE82-E3/54 is +175 °C, as stated in the "MAXIMUM RATINGS" table of the Vishay datasheet. This rating enables reliable operation in under-hood automotive environments and high-temperature industrial enclosures, provided thermal design accounts for RθJL = 66 °C/W and ambient conditions.
P4KE82-E3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AL, DO-41, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 66.4V
- Voltage - Breakdown (Min):
- 73.8V
- Voltage - Clamping (Max) @ Ipp:
- 118V
- Current - Peak Pulse (10/1000µs):
- 3.4A
- 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)
P4KE82-E3/54 FAQ
1.How can I place an order for P4KE82-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE82-E3/54 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 P4KE82-E3/54 reliable?
The price and inventory of P4KE82-E3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE82-E3/54 is usually 5 days.
3.What payment methods are accepted for P4KE82-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE82-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE82-E3/54?
P4KE82-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE82-E3/54 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 P4KE82-E3/54?
For technical support, including P4KE82-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE82-E3/54 requirements.
6.How does Aetrix verify that P4KE82-E3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE82-E3/54 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 P4KE82-E3/54 meets industry standards.
7.What is the process for return or replacement of P4KE82-E3/54?
All P4KE82-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE82-E3/54, 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 P4KE82-E3/54 part is unused and in its original packaging.
Return procedure for P4KE82-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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