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Vishay General Semiconductor - Diodes Division P4KE250-E3/54
- Part No.:
- P4KE250-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE250-E3/54.pdf
- Description:
- TVS DIODE 202VWM 360VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:8,871
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Product details
Overview
P4KE250-E3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for primary overvoltage protection of DC power rails and signal lines. It features a 214 V stand-off voltage (VWM), 237–263 V breakdown voltage (VBR) at 1 mA, 400 W peak pulse power (10/1000 μs), clamping voltage of 344 V at 1.2 A peak pulse current, and operates from –55 °C to +175 °C - used in automotive power supply input stages and industrial sensor interface protection.
For engineers reviewing the P4KE250-E3/54 datasheet, P4KE250-E3/54 pinout, P4KE250-E3/54 application, or P4KE250-E3/54 equivalent, key selection considerations include its unidirectional polarity, DO-41 mechanical compatibility, 1.5 W steady-state power dissipation, AEC-Q101 qualification (via HE3 variant), and thermal resistance of 66 °C/W junction-to-lead - critical for reliability in high-temperature automotive and industrial environments.
Technical Context
This device implements a glass-passivated silicon avalanche junction optimized for fast transient response (<1 ns) and low clamping ratio (VC/VBR ≈ 1.38). Its unidirectional configuration provides cathode-marked polarity with reverse-biased operation during surge events, while forward conduction remains limited to 5.0 V at 25 A per specification.
The P4KE250-E3/54 is rated for 400 W peak pulse power under 10/1000 μs waveform at 0.01% duty cycle, with derating above 25 °C ambient per Fig. 2 and thermal impedance profile defined in Fig. 7. It meets JESD 22-B106 solderability (275 °C, 10 s) and JESD 201 Class 1A whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 214 V - maximum continuous reverse operating voltage before significant leakage; defines safe DC rail margin |
| VBR (min/max) | 237 V / 263 V at 1 mA - precise avalanche onset range ensures consistent clamping threshold |
| VC @ IPPM | 344 V at 1.2 A - clamping voltage limits protected circuit stress during 10/1000 μs transients |
| PPPM | 400 W - peak surge energy handling capacity for lightning/inductive-switching events |
| TJ max | +175 °C - enables use in under-hood automotive and high-ambient industrial enclosures |
| RθJL | 66 °C/W - junction-to-lead thermal resistance supports reliable power dissipation without heatsink |
| IF surge | 40 A (8.3 ms half-sine) - withstands repetitive motor-commutation surges in power electronics |
Pinout & Package
DO-41 (DO-204AL) molded epoxy package with matte tin-plated leads; 0.205" (5.2 mm) body length, 0.107" (2.7 mm) diameter, lead spacing 0.375" (9.5 mm); cathode indicated by color band on unidirectional devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connects to lower-potential side of protected line; conducts only during forward surge or bias |
| Cathode | Avalanche clamping terminal | Marked end; connects to higher-potential side; conducts reverse avalanche current during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable, repeatable avalanche characteristics and long-term reliability under thermal cycling |
| 400 W peak pulse power (10/1000 μs) | Handles common IEC 61000-4-5 Level 3 (1 kV/2 Ω) surge events without degradation |
| AEC-Q101 qualified variant available | P4KE250HE3/54 meets automotive-grade stress testing for engine control and body electronics |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ESD, relay bounce) |
| UL 94 V-0 molding compound | Ensures flame-retardant enclosure compliance in safety-critical industrial and medical systems |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Clamp |
|---|---|
Use Scenario: 12 V/24 V battery-fed ECUs exposed to load dump (ISO 7637-2 Pulse 5a) and alternator transients. IC Role / Device Role / Timing Role: Primary shunt TVS placed upstream of LDOs and microcontrollers to clamp surges before regulation stage. Use Value: Clamps to 344 V within nanoseconds, limiting downstream voltage stress to <350 V - sufficient to protect 40 V-rated input capacitors and regulators. | Use Scenario: 4–20 mA current loop sensors in factory automation subject to cable-induced surges from nearby motor drives. IC Role / Device Role / Timing Role: Bidirectional protection not applicable; unidirectional P4KE250-E3/54 used across loop supply with cathode to positive rail to suppress negative-going transients. Use Value: Withstands 1.2 A peak pulse while maintaining VWM = 214 V - avoids false triggering during normal 24 V loop operation yet activates decisively during >300 V faults. |
| Telecom DC Power Feeds | Consumer Appliance Motor Drive Inputs |
Use Scenario: Central office power distribution feeding remote DSLAMs or optical line terminals via long copper runs. IC Role / Device Role / Timing Role: Secondary-level TVS on -48 V DC feed lines, coordinated with upstream GDTs to handle induced lightning surges. Use Value: 400 W rating allows absorption of residual energy after front-end gas discharge tube crowbarring - extends system-level surge immunity to IEC 61000-4-5 4 kV. | Use Scenario: AC induction motor controllers in washing machines where TRIAC commutation generates repetitive 600 V spikes on DC bus. IC Role / Device Role / Timing Role: Unidirectional TVS across bulk capacitor to clamp switching spikes and prevent MOSFET avalanche failure. Use Value: 175 °C max junction temperature and 66 °C/W RθJL enable sustained operation near heat-generating IGBTs without thermal runaway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ250A | Same VWM (214 V), but SMC (DO-214AB) package; 600 W PPPM; 10× larger footprint | Higher power handling but requires PCB area increase; better thermal performance in forced-air environments | Select SMBJ250A when surge duty cycle exceeds 0.01% or board layout permits larger package |
| 1.5KE250A | Same DO-41 package and VWM, but 1500 W PPPM; higher IPPM (10.2 A); larger junction area | Designed for higher-energy transients (e.g., direct lightning coupling); longer recovery time may affect high-frequency noise | Choose 1.5KE250A where IEC 61000-4-5 Level 4 (4 kV/12 Ω) immunity is required and space allows same-outline upgrade |
Compared with SMBJ250A and 1.5KE250A, the P4KE250-E3/54 offers optimal balance of DO-41 footprint compatibility, 400 W surge capability, and cost efficiency for moderate-duty automotive and industrial protection - without requiring layout changes or over-spec'ing for typical load-dump scenarios.
Availability
P4KE250-E3/54 is available at Aetrix Electronics and suitable for automotive power input protection, industrial sensor signal line clamping, and telecom DC power feeds requiring stable component supply across production lifecycles.
Supply support for P4KE250-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 passive components with emphasis on reliability and AEC-Q qualification.
The P4KE series belongs to Vishay's TRANSZORB® TVS family, engineered specifically for robust, standardized transient suppression in automotive, industrial, and telecom infrastructure - prioritizing repeatable clamping, thermal stability, and long-term surge endurance.
FAQ
What is the polarity configuration of P4KE250-E3/54?
The P4KE250-E3/54 is a unidirectional TVS diode: its cathode is marked by a color band on the DO-41 body, and it conducts avalanche current only in reverse bias. Forward voltage is specified at 5.0 V (25 A), confirming its asymmetric conduction behavior - unlike bidirectional variants such as P4KE250CA which lack polarity marking and conduct in both directions.
Does P4KE250-E3/54 meet AEC-Q101 requirements?
No - the P4KE250-E3/54 is the commercial-grade variant. The AEC-Q101 qualified version is designated P4KE250HE3/54 (with 'H' prefix), which undergoes additional stress testing per AEC-Q101 Rev D. Both share identical electrical specs and DO-41 packaging, but only the HE3 suffix guarantees automotive-grade reliability for under-hood applications.
What is the maximum clamping voltage of P4KE250-E3/54 under standard test conditions?
The maximum clamping voltage (VC) of P4KE250-E3/54 is 344 V, measured at peak pulse current (IPPM) of 1.2 A using the 10/1000 μs waveform. This value is guaranteed per Vishay Document 88365 and defines the upper voltage limit imposed on protected circuits during surge events - critical for ensuring downstream ICs remain below their absolute maximum ratings.
Can P4KE250-E3/54 be used in bidirectional protection circuits?
No - P4KE250-E3/54 is strictly unidirectional. For bidirectional transient suppression, Vishay specifies the P4KE250CA variant (with 'CA' suffix), which has symmetrical breakdown in both polarities and no cathode marking. Using P4KE250-E3/54 in place of a bidirectional device would leave one polarity unprotected and risk catastrophic failure during positive-going transients.
What is the thermal resistance from junction to lead for P4KE250-E3/54?
The typical thermal resistance from junction to lead (RθJL) for P4KE250-E3/54 is 66 °C/W, as specified in the Thermal Characteristics table of Vishay Document 88365. This parameter enables accurate junction temperature estimation during pulsed operation and confirms suitability for lead-mounted thermal management without heatsinks in most industrial and automotive mounting configurations.
P4KE250-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):
- 202V
- Voltage - Breakdown (Min):
- 225V
- Voltage - Clamping (Max) @ Ipp:
- 360V
- Current - Peak Pulse (10/1000µs):
- 1.1A
- 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)
P4KE250-E3/54 FAQ
1.How can I place an order for P4KE250-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE250-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 P4KE250-E3/54 reliable?
The price and inventory of P4KE250-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 P4KE250-E3/54 is usually 5 days.
3.What payment methods are accepted for P4KE250-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE250-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE250-E3/54?
P4KE250-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE250-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 P4KE250-E3/54?
For technical support, including P4KE250-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE250-E3/54 requirements.
6.How does Aetrix verify that P4KE250-E3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE250-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 P4KE250-E3/54 meets industry standards.
7.What is the process for return or replacement of P4KE250-E3/54?
All P4KE250-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE250-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 P4KE250-E3/54 part is unused and in its original packaging.
Return procedure for P4KE250-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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