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Vishay General Semiconductor - Diodes Division P4KE68AHE3/54
- Part No.:
- P4KE68AHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE68AHE3/54.pdf
- Description:
- TVS DIODE 58.1VWM 92VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:7,079
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Product details
Overview
P4KE68AHE3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for robust overvoltage protection of sensitive electronics. It features a 64.6 V minimum and 71.4 V maximum breakdown voltage (VBR) at 1.0 mA test current, 58.1 V stand-off voltage (VWM), 92.0 V maximum clamping voltage (VC) at 4.3 A peak pulse current, and 400 W peak pulse power rating with 10/1000 µs waveform - deployed on power rails and signal lines in automotive ECUs and industrial sensor interfaces.
For engineers reviewing the P4KE68AHE3/54 datasheet, P4KE68AHE3/54 pinout, P4KE68AHE3/54 application, or P4KE68AHE3/54 equivalent, key selection criteria include its AEC-Q101 qualification, 175 °C max junction temperature, low 0.104 %/°C VBR temperature coefficient, and DO-41 leaded package compatibility with through-hole PCB assembly and automated tape-and-reel handling (5500 pcs/reel).
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance above VWM (58.1 V), then rapidly avalanches below VBR to divert transient energy when voltage exceeds 64.6–71.4 V. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 µA at VWM), while the 66 °C/W junction-to-lead thermal resistance supports reliable power dissipation during repetitive surges.
The device is rated for 400 W peak pulse power (10/1000 µs), 40 A non-repetitive forward surge current (8.3 ms half-sine), and 1.5 W steady-state power dissipation on infinite heatsink at 75 °C. Its unidirectional polarity-marked with cathode band-and 3.5 V max forward voltage at 25 A enable integration into DC-biased protection paths without forward conduction interference.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR min/max | 64.6 V / 71.4 V at 1.0 mA - defines precise avalanche initiation range for repeatable clamping threshold |
| VWM | 58.1 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 µA |
| VC @ IPPM | 92.0 V at 4.3 A - clamping voltage during 400 W transient, limiting downstream voltage stress |
| IPPM | 4.3 A - peak pulse current capability with 10/1000 µs waveform, enabling protection against IEC 61000-4-5 surges |
| TJ max | +175 °C - extended junction temperature rating supports under-hood automotive and high-ambient industrial use |
| Package | DO-41 (DO-204AL) - industry-standard axial-leaded package with 0.375" lead length, UL 94 V-0 molded epoxy body |
| Qualification | AEC-Q101 qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD |
Pinout & Package
DO-41 (DO-204AL) package: axial-leaded, cylindrical epoxy-molded body with matte tin-plated leads solderable per J-STD-002; cathode indicated by color band on one end; lead diameter 0.034" (0.86 mm), body diameter 0.205" (5.2 mm), overall length ≥1.0" (25.4 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., GND or return path); conducts during forward surge events up to 40 A |
| Cathode | Avalanche clamping terminal | Marked end; connected to protected line (e.g., +12 V rail); initiates clamping when reverse voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable, low-drift VBR and <0.1 µA leakage at VWM, critical for low-power sensor interfaces |
| 400 W peak pulse power (10/1000 µs) | Withstands IEC 61000-4-5 Level 3 (1 kV/2 Ω) surges without degradation in automotive and industrial environments |
| AEC-Q101 qualification | Validated for automotive applications including engine control, body electronics, and ADAS sensor protection |
| Low incremental surge resistance | Minimizes VC overshoot during fast transients, reducing stress on downstream MOSFETs and ICs |
| RoHS-compliant HE3 suffix | Meets JESD 201 Class 2 whisker resistance and automotive material compliance requirements (doc?99912) |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed microcontrollers and CAN transceivers from load-dump and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between VCC and GND, clamping spikes within nanoseconds. Use Value: Limits voltage to ≤92.0 V during 400 W surges, preventing latch-up or gate oxide damage in 3.3 V/5 V logic. |
Use Scenario: Safeguarding analog outputs (e.g., 4–20 mA loops) and digital I/O of pressure/temperature sensors in factory automation. IC Role / Device Role / Timing Role: Low-leakage (≤1.0 µA) TVS on signal lines referenced to local ground, suppressing EFT and ESD. Use Value: Maintains signal integrity with <58.1 V stand-off and rapid response (<1 ns), avoiding false triggering in precision measurement circuits. |
| Consumer Power Adapter Input Protection | Telecom DC Power Feeds |
Use Scenario: Secondary-side overvoltage suppression in AC/DC adapters for USB-C PD and smart home hubs. IC Role / Device Role / Timing Role: Standoff-rated TVS across output capacitor terminals, absorbing flyback-induced spikes. Use Value: Withstands 40 A surge (8.3 ms) and 1.5 W continuous dissipation, enabling compact, thermally stable adapter designs. |
Use Scenario: Protecting -48 V telecom power distribution boards from lightning-induced surges on central office feeds. IC Role / Device Role / Timing Role: High-energy TVS on input bus, coordinated with upstream MOVs for staged clamping. Use Value: 92.0 V clamping at 4.3 A enables effective coordination with -48 V system margins and legacy equipment interface limits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ64A | Surface-mount SMB package; 64 V nominal VBR; 600 W peak power; higher IPPM (6.5 A) | Requires SMT reflow process; better suited for space-constrained PCBs and automated high-volume assembly | Select SMBJ64A when board real estate is limited and thermal management via copper pour is feasible. |
| 1.5KE68A | Same DO-41 package; 68 V nominal VBR; 1500 W peak power; higher VC (115 V); larger junction capacitance | Higher energy handling but slower response; less suitable for fast ESD or EFT where low VC is critical | Choose 1.5KE68A only when protecting against higher-energy surges where 115 V clamping is acceptable. |
Compared with SMBJ64A and 1.5KE68A, the P4KE68AHE3/54 offers optimal balance of AEC-Q101 qualification, 92.0 V low-clamp performance, and through-hole manufacturability - making it preferred for automotive and industrial designs requiring proven reliability and legacy assembly compatibility.
Availability
P4KE68AHE3/54 is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface development, and telecom power feed protection requiring stable component supply and long-term lifecycle support.
Supply support for P4KE68AHE3/54 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, TVS devices, and optoelectronics with emphasis on reliability and automotive-grade validation.
The P4KE68AHE3/54 belongs to Vishay's TRANSZORB® family of transient suppressors, engineered specifically for high-reliability overvoltage protection in harsh environments including automotive, industrial, and telecom infrastructure.
FAQ
What is the breakdown voltage tolerance of the P4KE68AHE3/54?
The P4KE68AHE3/54 has a specified breakdown voltage range of 64.6 V to 71.4 V at 1.0 mA test current, representing ±5% tolerance around the nominal 68 V rating. This tight VBR window ensures consistent clamping behavior across production lots and supports predictable system-level surge margin analysis in designs using the P4KE68AHE3/54.
Is the P4KE68AHE3/54 suitable for automotive applications?
Yes, the P4KE68AHE3/54 carries the HE3 suffix indicating AEC-Q101 qualification - verified for automotive-grade reliability including temperature cycling, high-temperature reverse bias, and mechanical shock testing. Its 175 °C max junction temperature and DO-41 package stability make it appropriate for under-hood and body-control module applications using the P4KE68AHE3/54.
How does the clamping voltage of the P4KE68AHE3/54 compare to its breakdown voltage?
The P4KE68AHE3/54 clamps at 92.0 V when subjected to its rated 4.3 A peak pulse current (10/1000 µs), which is approximately 28% above its minimum breakdown voltage of 64.6 V. This controlled VC/VBR ratio reflects low incremental surge resistance and ensures effective protection margin for 75 V-rated components downstream of the P4KE68AHE3/54.
What is the meaning of the "HE3/54" suffix in P4KE68AHE3/54?
The "HE3" denotes RoHS-compliant construction with JESD 201 Class 2 whisker resistance and AEC-Q101 qualification; "/54" specifies the preferred package code for 13-inch paper tape and reel packaging containing 5500 units. This full designation ensures traceable sourcing and correct assembly-line feeding for the P4KE68AHE3/54 in high-volume manufacturing.
Can the P4KE68AHE3/54 be used in bidirectional configurations?
No - the P4KE68AHE3/54 is a unidirectional TVS diode, identified by its cathode band marking and specified electrical parameters (e.g., VF = 3.5 V at 25 A). For bidirectional protection, Vishay offers the P4KE68CA variant; substituting the P4KE68AHE3/54 in AC-coupled or symmetrical signal paths would result in unintended forward conduction and failure to suppress negative transients.
P4KE68AHE3/54 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:
- 1
- Bidirectional Channels:
- -
- 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:
- -
- 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)
P4KE68AHE3/54 FAQ
1.How can I place an order for P4KE68AHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE68AHE3/54 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 P4KE68AHE3/54 reliable?
The price and inventory of P4KE68AHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE68AHE3/54 is usually 5 days.
3.What payment methods are accepted for P4KE68AHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE68AHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE68AHE3/54?
P4KE68AHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE68AHE3/54 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 P4KE68AHE3/54?
For technical support, including P4KE68AHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE68AHE3/54 requirements.
6.How does Aetrix verify that P4KE68AHE3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE68AHE3/54 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 P4KE68AHE3/54 meets industry standards.
7.What is the process for return or replacement of P4KE68AHE3/54?
All P4KE68AHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE68AHE3/54, 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 P4KE68AHE3/54 part is unused and in its original packaging.
Return procedure for P4KE68AHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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