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Vishay General Semiconductor - Diodes Division P4KE400-E3/54
- Part No.:
- P4KE400-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE400-E3/54.pdf
- Description:
- TVS DIODE 324VWM 574VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:5,590
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Product details
Overview
P4KE400-E3/54 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 342 V standoff voltage (VWM), 380–420 V breakdown voltage (VBR) at 1 mA, 400 W peak pulse power (10/1000 µs), and clamps transients to ≤548 V at 0.73 A peak pulse current. It is widely deployed in industrial power supplies and automotive ECUs to suppress inductive switching surges.
For engineers reviewing the P4KE400-E3/54 datasheet, P4KE400-E3/54 pinout, P4KE400-E3/54 application, or P4KE400-E3/54 equivalent, this page delivers verified electrical specs, thermal derating behavior, AEC-Q101 qualification status, DO-41 mechanical dimensions, and real-world protection use cases - all aligned with Vishay Document #88365 (Rev. 16-Sep-2021).
Technical Context
This unidirectional TVS operates as a clamping device that remains high-impedance below 342 V (VWM) and rapidly avalanches above its 380–420 V breakdown threshold to limit transient energy. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and low incremental surge resistance, enabling consistent clamping across repetitive 10/1000 µs pulses at 0.01% duty cycle.
Thermally, it sustains 1.5 W continuous power dissipation on an infinite heatsink at TL = 75 °C, with junction-to-lead thermal resistance of 66 °C/W. Its 175 °C max junction temperature and AEC-Q101 qualification confirm suitability for under-hood automotive environments and industrial control systems requiring long-term reliability under thermal stress.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 342 V - Maximum continuous reverse voltage before significant leakage; defines safe operating margin below clamping onset. |
| VBR (Breakdown Voltage) | 380–420 V at 1 mA - Precise avalanche initiation range; ensures predictable turn-on during overvoltage events. |
| VC (Clamping Voltage) | ≤548 V at IPPM = 0.73 A - Peak voltage seen by protected circuit during 10/1000 µs transient; determines downstream component stress. |
| PPPM (Peak Pulse Power) | 400 W - Energy-handling capacity for standardized 10/1000 µs waveform; validates surge immunity per IEC 61000-4-5. |
| ID (Reverse Leakage) | ≤1.0 µA at VWM - Minimal standby current; avoids parasitic loading on high-impedance signal or bias lines. |
| TJ max. | 175 °C - Enables operation in engine bay, motor drives, and industrial enclosures without thermal shutdown. |
| AEC-Q101 Qualified | Yes - Certified for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD22 standards. |
Pinout & Package
Package: DO-41 (DO-204AL), axial-leaded, molded epoxy body with matte tin-plated leads. Complies with UL 94 V-0 flammability rating and J-STD-002 solderability standard. Color band denotes cathode end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to circuit ground or lowest potential node; completes clamping path during reverse-biased surge events. |
| Cathode (banded end) | High-side transient input terminal | Receives incoming surge; avalanche conduction occurs from cathode to anode when VAK ≥ VBR, shunting energy to ground. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Ensures stable VBR tolerance (±5%), low leakage drift over temperature, and long-term reliability in humid or contaminated environments. |
| 400 W peak pulse power (10/1000 µs) | Validates compliance with IEC 61000-4-5 Level 4 (4 kV line-to-line, 2 kV line-to-ground) surge immunity requirements. |
| AEC-Q101 qualified | Confirms suitability for automotive powertrain, body control, and ADAS modules where failure modes must meet stringent automotive safety expectations. |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a/5a), improving protection fidelity. |
| Solder dip rated 275 °C / 10 s | Supports lead-free reflow and wave soldering processes without delamination or parameter shift. |
Applications
| Automotive Power Distribution | Industrial PLC Input Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed circuits in engine control units against load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between power rail and chassis ground to absorb >400 W surge energy within microseconds. Use Value: Limits transient voltage to ≤548 V, preventing damage to MCU power pins, CAN transceivers, and voltage regulators exposed to ISO 16750-2 pulses. |
Use Scenario: Shielding digital input terminals of programmable logic controllers from field-wiring induced surges in factory automation. IC Role / Device Role / Timing Role: Front-end protection element on 24 V DC sensor inputs, triggered only during overvoltage events while remaining invisible during normal operation. Use Value: Maintains <1.0 µA leakage at 342 V, avoiding false triggering or signal attenuation on high-impedance dry-contact or proximity-sensor interfaces. |
| Telecom Power Supply Rails | Consumer Appliance Motor Drivers |
Use Scenario: Safeguarding AC/DC adapter output stages and PoE injectors against lightning-induced surges on telecom infrastructure equipment. IC Role / Device Role / Timing Role: Secondary-side TVS on +48 V or +57 V DC rails, clamping fast transients before they reach DC-DC converters and Ethernet PHYs. Use Value: Delivers 400 W pulse handling with 66 °C/W thermal resistance, enabling reliable operation without heatsinking in compact telecom modules. |
Use Scenario: Suppressing commutation spikes generated by brushed DC motors in washing machines, HVAC blowers, and power tools. IC Role / Device Role / Timing Role: Flyback suppression diode mounted across motor terminals, conducting reverse energy back into the supply rail during switch-off. Use Value: Withstands 40 A non-repetitive forward surge (IFSM), reliably absorbing inductive kickback without degradation over 10,000+ cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ400A | DO-214AA package (SMB), 400 W rating, VBR = 447–494 V, VC = 644 V at 0.62 A - higher clamping voltage, lower peak current capability. | Surface-mount alternative for PCB space-constrained designs; lacks AEC-Q101 qualification in standard grade. | Select SMBJ400A only when board layout requires SMD mounting and thermal mass from copper pour compensates for higher VC. |
| 1.5KE400A | DO-201AD package, same 400 W rating, VBR = 380–420 V, VC = 548 V - identical clamping but larger footprint and 2.5 W continuous power rating. | Higher PD (2.5 W vs. 1.5 W) supports longer surge durations or elevated ambient temperatures without derating. | Choose 1.5KE400A when system-level thermal management allows larger axial package and sustained surge exposure exceeds P4KE400-E3/54's 1.5 W limit. |
Compared with SMBJ400A and 1.5KE400A, the P4KE400-E3/54 offers optimal balance of AEC-Q101 qualification, DO-41 manufacturability, and precise 342 V standoff-making it preferred for cost-sensitive, through-hole automotive and industrial designs where proven reliability and legacy assembly compatibility are critical.
Availability
P4KE400-E3/54 is available at Aetrix Electronics and suitable for automotive power distribution, industrial PLC input protection, and telecom power supply rails requiring stable component supply, RoHS-compliant packaging, and AEC-Q101 assurance.
Supply support for P4KE400-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, efficiency, and application-specific performance.
The P4KE400-E3/54 belongs to Vishay's TRANSZORB® TVS family, engineered for high-energy transient suppression in harsh environments-including automotive, industrial, and telecom infrastructure-where consistent clamping and long-term stability are mandatory.
FAQ
What is the maximum clamping voltage of the P4KE400-E3/54 under standard test conditions?
The P4KE400-E3/54 has a maximum clamping voltage (VC) of 548 V when subjected to its rated peak pulse current (IPPM) of 0.73 A using the 10/1000 µs waveform. This value is measured per Figure 1 in Vishay Document #88365 and defines the upper voltage limit imposed on protected circuitry during surge events. The P4KE400-E3/54 maintains this clamping performance across its full operating temperature range.
Is the P4KE400-E3/54 suitable for automotive applications?
Yes, the P4KE400-E3/54 is AEC-Q101 qualified, confirming compliance with automotive reliability standards including temperature cycling, highly accelerated life testing (HALT), and ESD robustness. Its 175 °C maximum junction temperature and stable VBR/VWM parameters make the P4KE400-E3/54 appropriate for under-hood engine control units, body electronics, and ADAS power domains where transient immunity and long-term stability are critical.
What does the "-E3/54" suffix indicate in P4KE400-E3/54?
The "-E3" suffix denotes RoHS-compliant, commercial-grade construction with matte tin-plated leads meeting J-STD-002 solderability and JESD201 Class 1A whisker resistance. The "/54" indicates packaging in 13-inch paper tape and reel with a base quantity of 5500 units - a standard logistics code used by Vishay for DO-41 devices. This configuration applies specifically to the P4KE400-E3/54 and is distinct from HE3 (AEC-Q101) or bulk-pack variants.
How does the P4KE400-E3/54 compare to bidirectional TVS diodes like P4KE400CA?
The P4KE400-E3/54 is unidirectional and features a cathode band for polarity-sensitive placement, whereas P4KE400CA is bidirectional with no polarity marking and symmetric clamping in both directions. The P4KE400-E3/54 offers lower leakage (<1.0 µA at 342 V) and is optimized for DC rail protection, while P4KE400CA suits AC-coupled or floating signal lines. Their VBR and VC values differ due to internal structure - the P4KE400-E3/54 cannot substitute for P4KE400CA without circuit redesign.
What thermal derating applies to the P4KE400-E3/54 above 25 °C ambient?
The P4KE400-E3/54 follows a linear derating curve from 1.5 W at TL = 75 °C down to zero at 175 °C junction temperature, per Figure 5 in Vishay Document #88365. Its thermal resistance is 66 °C/W (junction-to-lead) and 100 °C/W (junction-to-ambient with 10 mm lead length). Engineers must calculate actual power dissipation and ambient conditions to ensure TJ remains ≤175 °C; the P4KE400-E3/54 requires no external heatsink for typical 400 W pulse applications due to short pulse duration.
P4KE400-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):
- 324V
- Voltage - Breakdown (Min):
- 360V
- Voltage - Clamping (Max) @ Ipp:
- 574V
- Current - Peak Pulse (10/1000µs):
- 700mA
- 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)
P4KE400-E3/54 FAQ
1.How can I place an order for P4KE400-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE400-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 P4KE400-E3/54 reliable?
The price and inventory of P4KE400-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 P4KE400-E3/54 is usually 5 days.
3.What payment methods are accepted for P4KE400-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE400-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE400-E3/54?
P4KE400-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE400-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 P4KE400-E3/54?
For technical support, including P4KE400-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE400-E3/54 requirements.
6.How does Aetrix verify that P4KE400-E3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE400-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 P4KE400-E3/54 meets industry standards.
7.What is the process for return or replacement of P4KE400-E3/54?
All P4KE400-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE400-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 P4KE400-E3/54 part is unused and in its original packaging.
Return procedure for P4KE400-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE400-E3/54 Tags
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