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Vishay General Semiconductor - Diodes Division P4KE68CA-E3/54
- Part No.:
- P4KE68CA-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE68CA-E3/54.pdf
- Description:
- TVS DIODE 58.1VWM 92VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:2,766
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Product details
Overview
P4KE68CA-E3/54 from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for clamping voltage transients on signal or power lines. It features 64.6 V to 71.4 V breakdown voltage (VBR), 58.1 V standoff voltage (VWM), 400 W peak pulse power (10/1000 µs), and clamps to ≤92.0 V at 4.3 A peak pulse current - deployed in automotive sensor protection and industrial I/O interfaces.
For engineers reviewing the P4KE68CA-E3/54 datasheet, P4KE68CA-E3/54 pinout, P4KE68CA-E3/54 application, or P4KE68CA-E3/54 equivalent, key selection criteria include bidirectional clamping capability, DO-41 leaded package compatibility, AEC-Q101 qualification status, thermal resistance (RθJL = 66 °C/W), and low leakage (<1 µA at 58.1 V).
Technical Context
This device operates as a voltage-clamping protector with symmetrical avalanche behavior in both polarities, enabling suppression of positive and negative transients without polarity sensitivity. Its glass-passivated junction ensures stable breakdown characteristics and fast response time (<1 ns), while the 10/1000 µs waveform rating reflects standardized surge immunity testing per REA definitions.
The P4KE68CA-E3/54 exhibits a temperature coefficient of +0.104 %/°C for VBR, indicating predictable drift over operating junction temperatures (–55 °C to +175 °C). Its 1.5 W steady-state power dissipation and 66 °C/W junction-to-lead thermal resistance support reliable operation under sustained leakage conditions when mounted on PCB copper pours.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 64.6 V / 71.4 V - defines guaranteed avalanche onset range at 1 mA test current; sets lower bound for clamping activation |
| VWM | 58.1 V - maximum continuous reverse working voltage; must exceed system operating voltage to prevent leakage conduction |
| VC @ IPPM | ≤92.0 V at 4.3 A - clamped voltage during 400 W transient; determines protected circuit's maximum stress level |
| IPPM | 4.3 A - peak pulse current survivable under 10/1000 µs waveform; used to size upstream fusing or current limiting |
| PPPM | 400 W - standardized surge power rating; validates immunity to common lightning/inductive-switching threats |
| TJ max. | +175 °C - maximum junction temperature; enables use in under-hood automotive environments with minimal derating |
| RθJL | 66 °C/W - junction-to-lead thermal resistance; informs heatsinking requirements when operating near PD limit |
Pinout & Package
Package: DO-41 (DO-204AL), axial-leaded molded epoxy case with matte tin-plated leads; meets UL 94 V-0 flammability rating and J-STD-002 solderability standards. Bidirectional construction means no polarity marking - both terminals are functionally identical.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (unmarked) | Transient conduction path | Both terminals conduct identically during positive or negative overvoltage events; no cathode band present |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity exposure |
| AEC-Q101 qualified | Validated for automotive applications including engine control units, body electronics, and ADAS sensor interfaces |
| 400 W peak pulse power (10/1000 µs) | Meets ISO 7637-2 Pulse 1, 2a, 3a/b and IEC 61000-4-5 Level 3 surge immunity requirements |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (e.g., ESD or relay bounce) |
| RoHS-compliant, JESD 201 Class 1A whisker tested | Supports lead-free reflow assembly and prevents tin whisker growth in high-reliability industrial deployments |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and inductive switching spikes in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed across differential or single-ended signal lines upstream of interface ICs. Use Value: Limits transient voltage to ≤92.0 V, preventing damage to 5 V or 3.3 V logic-level receivers while maintaining signal integrity during normal operation. |
Use Scenario: Safeguarding digital input modules in programmable logic controllers against field-wiring surges and ground-loop transients in factory automation systems. IC Role / Device Role / Timing Role: Parallel-connected TVS on 24 V DC input channels to shunt energy before reaching optocoupler or Schmitt-trigger input stages. Use Value: Withstands repetitive 400 W pulses at 0.01% duty cycle, enabling robust operation in electrically noisy manufacturing environments. |
| Telecom Line Interface | Consumer Power Adapter Input |
Use Scenario: Secondary-side transient suppression on Ethernet PHY power rails and RS-485 termination networks in telecom infrastructure equipment. IC Role / Device Role / Timing Role: Standoff-rated protector on 3.3 V or 5 V bias lines feeding high-speed transceivers, activated only during fault conditions. Use Value: 58.1 V VWM avoids conduction during normal operation; <1 µA leakage preserves low-power sleep modes in always-on network devices. |
Use Scenario: Primary-side surge protection on AC-DC adapter input rectifier outputs to prevent capacitor overvoltage and MOSFET failure during lightning-induced surges. IC Role / Device Role / Timing Role: Clamping device placed across bulk storage capacitor to limit voltage rise during 10/1000 µs line surges. Use Value: 400 W rating handles IEC 61000-4-5 Combination Wave (1.2/50 µs + 8/20 µs) test levels up to 2 kV without degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ64CA | Surface-mount SMB package; 64 V VWM, 400 W rating, lower RθJA (50 °C/W) but higher VC (103 V) | Preferred for space-constrained PCBs; requires reflow-compatible layout and lacks axial through-hole mechanical robustness | Select when board area is limited and automated assembly is required; verify clamping margin versus protected IC's absolute max rating. |
| 1.5KE68CA | Higher 1500 W peak power; same DO-41 package, 64.6–71.4 V VBR, but larger physical size and 2.5 W steady-state PD | Better suited for infrequent high-energy surges (e.g., AC mains coupling); less optimal for high-repetition-rate noise | Choose for legacy designs needing higher surge margin without changing footprint; confirm thermal management for 2.5 W dissipation. |
Compared with SMBJ64CA and 1.5KE68CA, the P4KE68CA-E3/54 offers balanced surge handling (400 W), compact DO-41 form factor, AEC-Q101 qualification, and optimized thermal performance for cost-sensitive automotive and industrial applications where moderate pulse repetition is expected.
Availability
P4KE68CA-E3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection, and consumer power adapter designs requiring stable component supply and traceable sourcing.
Supply support for P4KE68CA-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, rectifiers, MOSFETs, and protection devices with emphasis on reliability, automotive qualification, and industrial-grade performance.
The P4KE68CA-E3/54 belongs to Vishay's TRANSZORB® TVS family, engineered specifically for bidirectional transient suppression in harsh electromagnetic environments - targeting automotive, industrial, and telecom applications demanding AEC-Q101 compliance and repeatable clamping behavior.
FAQ
What is the polarity configuration of the P4KE68CA-E3/54?
The P4KE68CA-E3/54 is a bidirectional TVS diode with no polarity marking on its DO-41 package. Both terminals function identically under positive or negative overvoltage conditions, making it suitable for AC-coupled or differential signal lines where polarity reversal may occur. This contrasts with unidirectional variants like P4KE68A, which feature a cathode band.
Does the P4KE68CA-E3/54 meet AEC-Q101 qualification?
Yes, the P4KE68CA-E3/54 is explicitly AEC-Q101 qualified per Vishay documentation (Document Number 88365, Revision 16-Sep-2021). This qualification confirms its suitability for automotive applications including engine control, body electronics, and ADAS sensor interfaces, covering stress tests for temperature cycling, humidity, and mechanical shock.
What is the maximum clamping voltage of the P4KE68CA-E3/54 under surge conditions?
The P4KE68CA-E3/54 clamps to a maximum of 92.0 V when subjected to its rated 4.3 A peak pulse current (IPPM) under a 10/1000 µs waveform. This value is measured at the device terminals and represents the upper voltage limit imposed on protected circuitry during transient events - critical for ensuring downstream ICs remain within their absolute maximum ratings.
How does the P4KE68CA-E3/54 differ from the P4KE68A variant?
The P4KE68CA-E3/54 is bidirectional, while the P4KE68A is unidirectional. The "CA" suffix denotes symmetrical clamping behavior in both directions, with no cathode marking; the "A" version has a cathode band and conducts only in reverse bias. Both share identical VBR (64.6–71.4 V), VWM (58.1 V), and 400 W rating, but differ in polarity-dependent leakage and application scope.
What is the thermal resistance specification for the P4KE68CA-E3/54?
The P4KE68CA-E3/54 has a typical junction-to-lead thermal resistance (RθJL) of 66 °C/W, measured with leads held at 75 °C. This parameter governs temperature rise under steady-state power dissipation (1.5 W max) and informs heatsinking decisions when operating near thermal limits - especially relevant in enclosed automotive or industrial enclosures with limited airflow.
P4KE68CA-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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 58.1V
- Voltage - Breakdown (Min):
- 64.6V
- Voltage - Clamping (Max) @ Ipp:
- 92V
- Current - Peak Pulse (10/1000µs):
- 4.3A
- 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)
P4KE68CA-E3/54 FAQ
1.How can I place an order for P4KE68CA-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE68CA-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 P4KE68CA-E3/54 reliable?
The price and inventory of P4KE68CA-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 P4KE68CA-E3/54 is usually 5 days.
3.What payment methods are accepted for P4KE68CA-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE68CA-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE68CA-E3/54?
P4KE68CA-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE68CA-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 P4KE68CA-E3/54?
For technical support, including P4KE68CA-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE68CA-E3/54 requirements.
6.How does Aetrix verify that P4KE68CA-E3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE68CA-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 P4KE68CA-E3/54 meets industry standards.
7.What is the process for return or replacement of P4KE68CA-E3/54?
All P4KE68CA-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE68CA-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 P4KE68CA-E3/54 part is unused and in its original packaging.
Return procedure for P4KE68CA-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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