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Vishay General Semiconductor - Diodes Division P4KE250A-E3/54
- Part No.:
- P4KE250A-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE250A-E3/54.pdf
- Description:
- TVS DIODE 214VWM 344VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:9,255
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Product details
Overview
P4KE250A-E3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for clamping voltage transients on power and signal lines. It features a 214 V standoff voltage (VWM), 237–263 V breakdown voltage (VBR) at 1 mA, 344 V maximum clamping voltage (VC) at 1.2 A peak pulse current, and 400 W peak pulse power rating with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor interfaces in industrial and automotive systems.
For engineers reviewing the P4KE250A-E3/54 datasheet, P4KE250A-E3/54 pinout, P4KE250A-E3/54 application, or P4KE250A-E3/54 equivalent, key selection criteria include unidirectional polarity, DO-41 mechanical compatibility, 175 °C max junction temperature, AEC-Q101 qualification status (E3 suffix = commercial grade; HE3 required for automotive), and clamping performance under 10/1000 μs surge conditions.
Technical Context
This TVS diode operates as a voltage-clamping protection device that enters avalanche conduction when reverse voltage exceeds its breakdown threshold. Its glass-passivated junction ensures stable VBR tolerance (±5 %) and low incremental surge resistance, enabling consistent clamping behavior across repetitive transients.
The device is rated for 400 W peak pulse power (10/1000 μs), 1.5 W steady-state power dissipation on infinite heatsink, and supports 40 A non-repetitive forward surge current (8.3 ms half-sine). Forward voltage is specified at 5.0 V @ 25 A, confirming suitability for high-energy transient suppression without excessive forward conduction loss.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 214 V - maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 237 V / 263 V at 1 mA - defines precise avalanche initiation window for reliable overvoltage detection |
| VC @ IPPM | 344 V at 1.2 A - clamping voltage during 10/1000 μs surge, limiting downstream voltage stress |
| PPPM | 400 W - peak transient energy absorption capability under standardized surge waveform |
| TJ max | +175 °C - enables operation in under-hood automotive and high-temperature industrial environments |
| Package | DO-41 (DO-204AL) - axial-leaded through-hole package with UL 94 V-0 epoxy molding |
| VF @ 25 A | 5.0 V - forward voltage drop under high-current surge, critical for bidirectional circuit analysis |
Pinout & Package
DO-41 (DO-204AL) package: axial-leaded, molded epoxy body over passivated silicon chip; matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards; color band denotes cathode end for unidirectional polarity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected line; conducts during positive surges in unidirectional configuration |
| Cathode (banded end) | Avalanche clamping terminal | Connected to higher-potential side; initiates reverse-biased avalanche conduction above VBR to clamp transients |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance (±5 %) and long-term reliability under thermal cycling and humidity exposure |
| 400 W peak pulse power (10/1000 μs) | Provides robust protection against IEC 61000-4-5 Level 4 surges (4 kV line-to-line) in industrial power inputs |
| AEC-Q101 qualified variant available (HE3 suffix) | Confirms suitability for automotive electronics where qualification beyond commercial-grade testing is mandatory |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (<1 ns response), improving clamping fidelity |
| UL 94 V-0 flammability rating | Meets safety requirements for enclosed power supplies and industrial control cabinets |
Applications
| Industrial Motor Drives | Automotive Power Distribution |
|---|---|
Use Scenario: Protection of gate drivers and DC-link sensing circuits against inductive kickback from relay and contactor switching. IC Role / Device Role / Timing Role: Unidirectional TVS placed across DC bus or gate resistor to clamp voltage spikes before they reach sensitive logic or MOSFET gates. Use Value: Limits transient voltage to ≤344 V, preventing gate oxide rupture in 600 V-class IGBTs and ensuring >100,000-cycle reliability in factory automation systems. | Use Scenario: Surge suppression on 24 V battery-fed ECUs exposed to load dump (ISO 7637-2 Pulse 5a) and jump-start events. IC Role / Device Role / Timing Role: Primary clamping device on main power input rail, coordinated with upstream fuse and downstream LDOs. Use Value: Absorbs up to 400 W for 1 ms, holding rail voltage below 350 V during 35 V/100 ms load dump, preserving microcontroller and CAN transceiver integrity. |
| Telecom Power Feeds | Consumer Appliance Control Boards |
Use Scenario: Input-stage protection for PoE-powered remote units subjected to lightning-induced surges on Ethernet cables. IC Role / Device Role / Timing Role: First-line TVS on DC input derived from midspan injectors, placed ahead of DC/DC converters and PHY ICs. Use Value: Clamps common-mode surges to <344 V within nanoseconds, preventing latch-up in IEEE 802.3af/at PHYs and maintaining link stability during Category C surge events. | Use Scenario: Overvoltage protection for microcontroller I/O pins connected to front-panel buttons, sensors, and relay coils in washing machines and HVAC controllers. IC Role / Device Role / Timing Role: Localized TVS per I/O net, mounted adjacent to connector or switch to minimize trace inductance. Use Value: Limits induced transients from relay coil flyback (<100 ns rise time) to <344 V, eliminating false resets and EEPROM corruption in 3.3 V/5 V MCU systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ250A | Surface-mount SMB package (vs. DO-41 through-hole); same 250 V nominal breakdown, but 600 W PPPM rating | Better suited for space-constrained PCBs; requires rework of footprint and thermal relief design | Select SMBJ250A when board area is limited and higher surge margin is needed; verify solder joint reliability under thermal cycling. |
| 1.5KE250A | Same DO-41 package and 250 V rating, but 1500 W peak pulse power (10/1000 μs) and higher IPPM (6.2 A) | Designed for heavier-duty industrial mains input stages where 400 W is insufficient | Choose 1.5KE250A for AC/DC front-end protection where IEC 61000-4-5 Level 5 compliance is required; note larger junction capacitance may affect high-speed signal lines. |
Compared with SMBJ250A and 1.5KE250A, P4KE250A-E3/54 offers optimal balance of proven through-hole manufacturability, 400 W surge handling, and cost efficiency for mid-tier industrial and consumer power rail protection - without requiring layout redesign or over-specifying surge capacity.
Availability
P4KE250A-E3/54 is available at Aetrix Electronics and suitable for industrial motor drives, automotive power distribution modules, and telecom power feeds requiring stable component supply with full traceability and RoHS compliance.
Supply support for P4KE250A-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, thermal performance, and automotive qualification.
The P4KE series belongs to Vishay's TransZorb® TVS family, engineered specifically for robust transient suppression in harsh environments - targeting industrial controls, automotive subsystems, and infrastructure equipment where failure modes must be mitigated without system-level redundancy.
FAQ
What is the polarity configuration of P4KE250A-E3/54?
P4KE250A-E3/54 is a unidirectional TVS diode, meaning it conducts only in reverse bias above its breakdown voltage. The cathode is marked by a color band on the DO-41 body. Unlike bidirectional variants (e.g., P4KE250CA), it does not suppress positive-going transients on the anode side - correct orientation is essential for proper circuit protection. This configuration matches standard DC power rail clamping needs.
Does P4KE250A-E3/54 meet AEC-Q101 qualification?
No, P4KE250A-E3/54 carries the E3 suffix, indicating RoHS-compliant commercial-grade construction. For AEC-Q101 qualification, the part must use the HE3 suffix (e.g., P4KE250AHE3/54). The E3 version lacks the extended reliability testing required for automotive under-hood applications, though it remains suitable for industrial and consumer use cases with less stringent qualification mandates.
What is the maximum clamping voltage of P4KE250A-E3/54 under surge conditions?
The maximum clamping voltage (VC) of P4KE250A-E3/54 is 344 V, measured at 1.2 A peak pulse current using the standard 10/1000 μs waveform. This value represents the upper limit of voltage seen by downstream components during a defined transient event and is critical for ensuring protected ICs remain within their absolute maximum ratings - especially for 300–400 V rated MOSFETs and gate drivers.
Can P4KE250A-E3/54 be used in AC line protection?
P4KE250A-E3/54 is not recommended for direct AC line protection due to its unidirectional nature and lack of bidirectional clamping. For AC applications, bidirectional variants like P4KE250CA are required. Using P4KE250A-E3/54 on AC lines risks forward conduction during positive half-cycles, leading to overheating and failure. Always match TVS polarity and voltage rating to the specific line topology and surge directionality.
What is the thermal resistance of P4KE250A-E3/54, and how does it affect layout?
P4KE250A-E3/54 has a typical junction-to-lead thermal resistance (RθJL) of 66 °C/W and junction-to-ambient (RθJA) of 100 °C/W with 10 mm lead length. These values indicate moderate self-heating during sustained surge events; therefore, PCB layout should maximize copper pour on both leads and avoid narrow traces. For repeated surges, thermal derating per Figure 2 must be applied - ambient temperature rise directly reduces safe peak power handling.
P4KE250A-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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 214V
- Voltage - Breakdown (Min):
- 237V
- Voltage - Clamping (Max) @ Ipp:
- 344V
- Current - Peak Pulse (10/1000µs):
- 1.2A
- 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)
P4KE250A-E3/54 FAQ
1.How can I place an order for P4KE250A-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE250A-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 P4KE250A-E3/54 reliable?
The price and inventory of P4KE250A-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 P4KE250A-E3/54 is usually 5 days.
3.What payment methods are accepted for P4KE250A-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE250A-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE250A-E3/54?
P4KE250A-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE250A-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 P4KE250A-E3/54?
For technical support, including P4KE250A-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE250A-E3/54 requirements.
6.How does Aetrix verify that P4KE250A-E3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE250A-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 P4KE250A-E3/54 meets industry standards.
7.What is the process for return or replacement of P4KE250A-E3/54?
All P4KE250A-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE250A-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 P4KE250A-E3/54 part is unused and in its original packaging.
Return procedure for P4KE250A-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE250A-E3/54 Tags
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