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Vishay General Semiconductor - Diodes Division P4SMA250A-E3/5A
- Part No.:
- P4SMA250A-E3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA250A-E3/5A.pdf
- Description:
- TVS DIODE 214VWM 344VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,406
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Product details
Overview
P4SMA250A-E3/5A from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping voltage transients on power and signal lines. It features a 250 V standoff voltage (VWM), 237–263 V breakdown voltage (VBR) at 1 mA, 344 A peak pulse current (IPPM), 3.3 W steady-state power dissipation, and 0.87 A maximum reverse leakage at VWM - used to protect MOSFETs, ICs, and sensor interfaces in industrial power supplies.
For engineers reviewing the P4SMA250A-E3/5A datasheet, P4SMA250A-E3/5A pinout, P4SMA250A-E3/5A application, or P4SMA250A-E3/5A equivalent, key selection criteria include clamping voltage (344 V), thermal resistance (120 °C/W), AEC-Q101 qualification status, RoHS compliance, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking, leveraging glass-passivated junction technology for stable avalanche behavior under repetitive 10/1000 µs surge waveforms. Its 400 W peak pulse power rating applies below 91 V; above that threshold, derated to 300 W - confirmed for P4SMA250A-E3/5A per Fig. 1 and Note (1).
Thermal performance is defined by RθJA = 120 °C/W (typ.) and RθJL = 30 °C/W (typ.), with junction temperature rated from –65 °C to +150 °C. The device meets MSL Level 1 per J-STD-020 and passes JESD 201 Class 2 whisker testing, supporting high-reliability reflow profiles up to 260 °C peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 214 V - maximum continuous reverse voltage before significant leakage; defines operating margin before clamping activation |
| VBR (Breakdown Voltage) | 237–263 V at IT = 1 mA - precise avalanche onset range ensuring predictable turn-on during overvoltage events |
| VC (Clamping Voltage) | 344 V at IPPM = 344 A - peak voltage seen across protected circuit during 10/1000 µs transient, limiting stress on downstream components |
| PPPM (Peak Pulse Power) | 300 W - maximum non-repetitive surge energy handling capability above 91 V, validated per IEC 61000-4-5 waveform |
| ID (Reverse Leakage) | 1.0 µA at VWM = 214 V - ultra-low leakage preserves efficiency in high-impedance bias networks and battery-powered systems |
| TJ max. | +150 °C - enables operation in under-hood automotive and industrial environments without thermal shutdown |
| Package | SMA (DO-214AC) - industry-standard surface-mount outline with 5.0 mm × 5.0 mm thermal pad footprint for effective heat dissipation |
Pinout & Package
SMA (DO-214AC) package with molded epoxy body, matte tin-plated leads, and cathode band marking for unidirectional polarity identification. Designed for automated pick-and-place and reflow soldering per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to ground or low-side reference in unidirectional clamp configuration; must be routed with low-inductance path |
| Cathode | Current exit terminal during forward conduction; marked with band | Connected to protected line (e.g., DC bus or signal trace); determines clamping polarity and directionality |
Key Features
| Feature | Design Value |
|---|---|
| 400 W / 300 W peak pulse power | Enables robust protection against IEC 61000-4-5 Level 4 surges (4 kV/2 kA) on 24–48 V industrial buses without derating |
| Glass passivated junction | Ensures stable VBR tolerance (±5 %) and long-term reliability under thermal cycling and humidity exposure |
| AEC-Q101 qualified (suffix B) | Validated for automotive powertrain and body electronics applications requiring zero defect rates and extended temperature operation |
| MSL Level 1, 260 °C peak reflow | Supports single-pass lead-free reflow without moisture sensitivity concerns or pre-bake requirements |
| RoHS-compliant, halogen-free option available | Meets EU Directive 2011/65/EU and IPC-1752A reporting standards for green manufacturing and end-of-life recycling |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
|
Use Scenario: Protection of gate drivers and MCU I/O against inductive kickback from 24 V solenoid coils and relay loads. IC Role / Device Role / Timing Role: Unidirectional TVS placed between MOSFET source and gate driver output to clamp negative-going transients. Use Value: Limits transient voltage to ≤344 V, preventing gate oxide rupture in 60 V-rated logic-level MOSFETs while maintaining <1 µA standby leakage. |
Use Scenario: Safeguarding LIN bus transceivers and sensor inputs from load dump and jump-start surges in 12 V vehicle subsystems. IC Role / Device Role / Timing Role: Standoff-connected TVS on LIN data line referenced to chassis ground, activated only during >214 V events. Use Value: Clamps 100 V/10 ms load dump pulses to 344 V within 1 ns response time, preserving signal integrity and meeting ISO 16750-2 requirements. |
| Telecom Power Rectifiers | PLC Analog Input Protection |
|
Use Scenario: Secondary-side surge suppression on 48 V telecom rectifier outputs feeding PoE injectors and baseband processors. IC Role / Device Role / Timing Role: Parallel-connected TVS across DC output capacitor to absorb lightning-induced common-mode surges. Use Value: Absorbs 300 W peak pulse energy without degradation, maintaining 214 V system operating margin and enabling UL 497B recognition. |
Use Scenario: Input-stage protection for 4–20 mA analog input channels exposed to field wiring faults and ESD in industrial PLC backplanes. IC Role / Device Role / Timing Role: Series TVS + current-limiting resistor configuration on each channel to limit fault current to safe levels. Use Value: Provides <1 µA leakage at 24 V nominal, avoiding measurement offset errors while clamping 8 kV contact ESD per IEC 61000-4-2 to <344 V. |
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 | Same VWM (214 V), higher VC (356 V), SMB package (larger footprint, lower RθJA = 85 °C/W) | Better thermal performance but requires PCB layout change; not drop-in compatible with SMA footprints | Select when board space allows larger package and higher thermal margin is critical for sustained surge duty cycles |
| SMCJ250A | Same VWM (214 V), identical VC (344 V), SMC package (DO-214AB), higher PPPM (1500 W) | Higher surge rating supports multi-pulse events but adds 3× package volume and cost | Choose for mission-critical 24–48 V systems requiring >1000 W surge immunity where size penalty is acceptable |
Compared with P4SMA250A-E3/5A, SMBJ250A offers superior thermal dissipation but demands PCB redesign, while SMCJ250A delivers triple the surge capacity at the expense of footprint and bill-of-materials cost - making P4SMA250A-E3/5A optimal for space-constrained, cost-sensitive industrial and automotive modules needing verified 300 W protection.
Availability
P4SMA250A-E3/5A is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, telecom power rectifiers, and PLC analog input protection requiring stable component supply, RoHS compliance, and AEC-Q101 qualification.
Supply support for P4SMA250A-E3/5A 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, efficiency, and application-specific optimization.
The P4SMA series is engineered for high-volume surface-mount transient suppression in automotive, industrial, and telecom infrastructure - balancing compact size, repeatable clamping, and AEC-Q101 validation for harsh-environment deployment.
FAQ
What is the clamping voltage of P4SMA250A-E3/5A and how is it measured?
The clamping voltage (VC) of P4SMA250A-E3/5A is 344 V, measured at peak pulse current (IPPM) of 344 A using a 10/1000 µs double-exponential waveform per IEC 61000-4-5. This value represents the maximum voltage imposed on the protected circuit during a standardized surge event and is guaranteed across the full operating temperature range of –65 °C to +150 °C. P4SMA250A-E3/5A achieves this with low incremental surge resistance, ensuring consistent performance without thermal runaway.
Is P4SMA250A-E3/5A suitable for automotive applications?
Yes, P4SMA250A-E3/5A is AEC-Q101 qualified (suffix B), meaning it has passed stress tests including high-temperature operating life, temperature cycling, and ESD per JESD22-A114. It is approved for use in automotive body electronics, power distribution units, and sensor interfaces where 214 V standoff and 344 V clamping are required. P4SMA250A-E3/5A also meets MSL Level 1 and supports lead-free reflow up to 260 °C, aligning with automotive manufacturing standards.
What is the difference between P4SMA250A-E3/5A and P4SMA250AHE3_B?
P4SMA250A-E3/5A uses the "E3" suffix indicating RoHS-compliant commercial-grade construction with 13″ tape-and-reel packaging (7500 pcs/reel), while P4SMA250AHE3_B adds "H" for AEC-Q101 qualification and "B" for the 250–540 V voltage range variant - same electrical specs but certified for automotive use. Both share identical VWM (214 V), VBR (237–263 V), and VC (344 V), but only P4SMA250AHE3_B carries the formal AEC-Q101 certificate. P4SMA250A-E3/5A is not automotive-qualified.
How does the thermal resistance of P4SMA250A-E3/5A affect PCB layout?
P4SMA250A-E3/5A has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W, which means its junction temperature rises 120 °C above ambient for every watt dissipated - so at 3.3 W steady-state power, ΔT reaches ~396 °C unless mitigated. To stay within the +150 °C TJ max, designers must use minimum 5.0 mm × 5.0 mm copper pads per terminal (per datasheet Fig. 4) and avoid narrow traces. P4SMA250A-E3/5A relies on PCB copper as heatsink; insufficient copper area causes premature thermal failure.
Can P4SMA250A-E3/5A be used in bidirectional configurations?
No, P4SMA250A-E3/5A is strictly unidirectional, indicated by the "A" suffix and cathode band marking. Bidirectional variants use the "CA" suffix (e.g., P4SMA250CA). Using P4SMA250A-E3/5A in reverse-biased AC applications would result in forward conduction and catastrophic failure. For bidirectional protection at 250 V, select P4SMA250CA-E3/5A, which has symmetric VBR (237–263 V) in both directions and no polarity marking.
P4SMA250A-E3/5A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- P4SMA, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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):
- 870mA
- Power - Peak Pulse:
- 300W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
P4SMA250A-E3/5A FAQ
1.How can I place an order for P4SMA250A-E3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA250A-E3/5A 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 P4SMA250A-E3/5A reliable?
The price and inventory of P4SMA250A-E3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA250A-E3/5A is usually 5 days.
3.What payment methods are accepted for P4SMA250A-E3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA250A-E3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA250A-E3/5A?
P4SMA250A-E3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA250A-E3/5A 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 P4SMA250A-E3/5A?
For technical support, including P4SMA250A-E3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA250A-E3/5A requirements.
6.How does Aetrix verify that P4SMA250A-E3/5A is sourced from the original manufacturer or authorized distributors?
All P4SMA250A-E3/5A 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 P4SMA250A-E3/5A meets industry standards.
7.What is the process for return or replacement of P4SMA250A-E3/5A?
All P4SMA250A-E3/5A units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA250A-E3/5A, 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 P4SMA250A-E3/5A part is unused and in its original packaging.
Return procedure for P4SMA250A-E3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA250A-E3/5A Tags
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