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Vishay General Semiconductor - Diodes Division P4KE250-E3/73
- Part No.:
- P4KE250-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE250-E3/73.pdf
- Description:
- TVS DIODE 202VWM 360VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:7,900
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Product details
Overview
P4KE250-E3/73 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for overvoltage protection of sensitive electronics. It features a 214 V standoff voltage (VWM), 237–263 V breakdown voltage (VBR), 400 W peak pulse power (10/1000 μs), clamping voltage of 344 V at 1.2 A peak pulse current, and operates across –55 °C to +175 °C junction temperature range. Used in automotive power line and industrial sensor interface protection.
For engineers reviewing the P4KE250-E3/73 datasheet, P4KE250-E3/73 pinout, P4KE250-E3/73 application, or P4KE250-E3/73 equivalent, key selection criteria include unidirectional clamping behavior, DO-41 leaded package compatibility with through-hole PCB assembly, 214 V working voltage margin for 24 V/48 V systems, and AEC-Q101 qualification for automotive-grade reliability validation.
Technical Context
This TVS diode employs a glass-passivated silicon junction optimized for fast response (<1 ns) to transient surges such as ESD, inductive switching spikes, and lightning-induced transients. Its unidirectional polarity uses a cathode band marking and exhibits 5.0 V forward voltage at 25 A per specification.
The device delivers 400 W peak pulse power under standardized 10/1000 μs waveform conditions with 0.01 % duty cycle, and its thermal resistance (junction-to-lead) is 66 °C/W - enabling effective heat dissipation in constrained board layouts without heatsinking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 214 V - maximum continuous reverse operating voltage before clamping begins; suitable for 24 V/48 V DC bus protection with safety margin |
| VBR (Breakdown Voltage) | 237–263 V at 1 mA test current - defines onset of avalanche conduction; tight 10 % tolerance ensures predictable clamping threshold |
| VC (Clamping Voltage) | 344 V at 1.2 A IPPM - limits transient voltage seen by downstream circuitry; critical for MOSFET gate and IC input stage survivability |
| PPPM (Peak Pulse Power) | 400 W - energy-handling capability under 10/1000 μs surge; supports IEC 61000-4-5 Level 3 (1 kV/2 Ω) compliance |
| TJ max. | +175 °C - high-temperature operation enables use in engine bay or industrial enclosures without derating penalties |
| Package | DO-41 (DO-204AL) - axial-leaded through-hole package with 0.375" (9.5 mm) lead length; compatible with legacy wave-solder and hand-solder processes |
Pinout & Package
DO-41 (DO-204AL) molded epoxy package with matte tin-plated leads; cathode indicated by color band on body. Leads conform to J-STD-002 and JESD 22-B102 solderability standards; RoHS-compliant (E3 suffix) and JESD 201 Class 1A whisker tested.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / low-side connection | Connected to ground or low-voltage reference in unidirectional clamp configuration; forms return path during surge conduction |
| Cathode | Reverse-biased terminal / protected line connection | Connected to signal/power line requiring protection; avalanche conduction initiates here when VWM exceeded |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Enables stable, low-leakage (<1 μA at VWM) performance over lifetime and temperature; prevents moisture-induced degradation |
| 400 W peak pulse power (10/1000 μs) | Supports robust protection against repetitive inductive switch-off transients in relay drivers and solenoid controls |
| AEC-Q101 qualified | Validated for automotive applications including powertrain and body electronics; includes HTOL, TC, and ESD stress testing |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (<1 ns response), improving protection margin for CMOS inputs |
| UL 94 V-0 molding compound | Self-extinguishing encapsulation meets flammability requirements for industrial control cabinets and EV charging infrastructure |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface |
|---|---|
Use Scenario: Protecting 24 V supply rails in vehicle ECUs from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and local regulator input to clamp surges above 214 V. Use Value: Prevents damage to downstream LDOs and microcontrollers during ISO 16750-2 load dump events up to 35 V/100 ms. | Use Scenario: Shielding analog output lines of pressure/temperature sensors in factory automation PLC modules. IC Role / Device Role / Timing Role: TVS connected across signal and ground to suppress EFT bursts and cable discharge events. Use Value: Maintains signal integrity below ±10 mV error band during 4 kV contact ESD per IEC 61000-4-2, avoiding ADC saturation. |
| Telecom DC Power Feeds | Consumer Appliance Motor Control |
Use Scenario: Safeguarding PoE-powered equipment front-end circuits from induced surges on 48 V DC distribution lines. IC Role / Device Role / Timing Role: Standoff-rated TVS on primary side of isolated DC/DC converter input stage. Use Value: Clamps 10/1000 μs transients to ≤344 V, ensuring input capacitor and MOSFET stress remains within rated limits. | Use Scenario: Overvoltage suppression on brushed DC motor driver H-bridge outputs in smart home appliances. IC Role / Device Role / Timing Role: Unidirectional TVS across motor terminals to absorb inductive kickback during PWM commutation. Use Value: Limits flyback voltage to 344 V, preventing gate oxide rupture in 40 V logic-level MOSFETs used in compact driver ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ220A | Surface-mount SMB package; 220 V VWM, 356 V VC at 1.1 A; lower 600 W PPPM rating | Requires PCB re-layout for SMT; better suited for space-constrained consumer electronics vs. legacy through-hole designs | Select when board real estate is limited and automated assembly is preferred over manual through-hole placement |
| 1.5KE250A | Higher 1500 W PPPM rating; same DO-41 package; 214 V VWM, 354 V VC at 4.2 A; larger junction area | Delivers higher surge endurance for infrequent but severe transients (e.g., lightning coupling); higher forward voltage (5.0 V) | Choose for mission-critical industrial systems where single-event robustness outweighs cost and size constraints |
Compared with SMBJ220A and 1.5KE250A, the P4KE250-E3/73 offers optimal balance of proven through-hole manufacturability, AEC-Q101 qualification, and 400 W surge handling - making it ideal for automotive and industrial designs where legacy assembly infrastructure and reliability traceability are prioritized.
Availability
P4KE250-E3/73 is available at Aetrix Electronics and suitable for automotive power line protection, industrial sensor interface hardening, and telecom DC feed surge suppression requiring stable component supply across multi-year production cycles.
Supply support for P4KE250-E3/73 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, and protection devices with emphasis on reliability and automotive qualification.
The P4KE series belongs to Vishay's TRANSZORB® TVS family, engineered specifically for robust, cost-effective overvoltage protection in harsh environments including automotive, industrial, and telecom infrastructure.
FAQ
What is the clamping voltage of the P4KE250-E3/73 under standard surge conditions?
The P4KE250-E3/73 has a maximum clamping voltage (VC) of 344 V at 1.2 A peak pulse current (IPPM) using the industry-standard 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 transient events. The P4KE250-E3/73 maintains this clamping performance across its full operating temperature range.
Is the P4KE250-E3/73 suitable for automotive applications?
Yes, the P4KE250-E3/73 is AEC-Q101 qualified per Vishay documentation, confirming its suitability for automotive applications including engine control units, body electronics, and power distribution modules. Its DO-41 package, –55 °C to +175 °C operating range, and validated HTOL/TC/ESD performance make the P4KE250-E3/73 appropriate for under-hood and chassis-mounted systems.
How does the P4KE250-E3/73 differ from bidirectional TVS diodes like P4KE250CA?
The P4KE250-E3/73 is unidirectional and features a cathode band marking, conducting only in reverse avalanche mode - ideal for DC line protection where polarity is fixed. In contrast, P4KE250CA is bidirectional with no polarity marking and clamps in both directions, suited for AC or differential signal lines. The P4KE250-E3/73 also specifies 5.0 V forward voltage at 25 A, whereas bidirectional variants do not define forward characteristics.
What is the thermal resistance of the P4KE250-E3/73, and how does it affect layout design?
The P4KE250-E3/73 has a typical junction-to-lead thermal resistance (RθJL) of 66 °C/W, meaning each watt of sustained power dissipation raises the junction temperature by ~66 °C above lead temperature. For reliable operation, maintain lead temperature below 75 °C per Fig. 5; this requires adequate copper pour on anode/cathode pads and avoids excessive trace length - especially critical in high-ambient industrial environments where the P4KE250-E3/73 may operate near its 1.5 W steady-state limit.
Does the P4KE250-E3/73 meet RoHS and lead-free soldering requirements?
Yes, the "E3" suffix in P4KE250-E3/73 indicates RoHS-compliant construction with matte tin-plated leads, qualified per J-STD-002 and JESD 22-B102 for solderability. It withstands solder dip at 275 °C for up to 10 seconds and passes JESD 201 Class 1A whisker testing - confirming compatibility with lead-free reflow and wave soldering processes used in modern electronics manufacturing for the P4KE250-E3/73.
P4KE250-E3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AL, DO-41, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Box (TB)
- 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-E3/73 FAQ
1.How can I place an order for P4KE250-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE250-E3/73 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-E3/73 reliable?
The price and inventory of P4KE250-E3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE250-E3/73 is usually 5 days.
3.What payment methods are accepted for P4KE250-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE250-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE250-E3/73?
P4KE250-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE250-E3/73 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-E3/73?
For technical support, including P4KE250-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE250-E3/73 requirements.
6.How does Aetrix verify that P4KE250-E3/73 is sourced from the original manufacturer or authorized distributors?
All P4KE250-E3/73 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-E3/73 meets industry standards.
7.What is the process for return or replacement of P4KE250-E3/73?
All P4KE250-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE250-E3/73, 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-E3/73 part is unused and in its original packaging.
Return procedure for P4KE250-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE250-E3/73 Tags
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