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Vishay General Semiconductor - Diodes Division P4SMA250A-E3/61
- Part No.:
- P4SMA250A-E3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA250A-E3/61.pdf
- Description:
- TVS DIODE 214VWM 344VC DO214AC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
P4SMA250A-E3/61 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, rated for 250 V standoff voltage (VWM), 263 V minimum breakdown voltage (VBR), and 400 W peak pulse power (10/1000 µs). It clamps transients to 344 V at 0.87 A peak pulse current and is AEC-Q101 qualified for automotive applications including power supply rail protection in engine control units.
For engineers reviewing the P4SMA250A-E3/61 datasheet, P4SMA250A-E3/61 pinout, P4SMA250A-E3/61 application, or P4SMA250A-E3/61 equivalent, this page delivers verified electrical parameters, thermal derating behavior, clamping performance under standardized surge waveforms, and precise mechanical mounting guidance per J-STD-020 MSL Level 1.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking, leveraging glass-passivated junction technology for stable avalanche response. Its 120 °C/W junction-to-ambient thermal resistance requires copper pad layout per Vishay's 0.2" × 0.2" (5.0 mm × 5.0 mm) recommendation to sustain 400 W peak pulse power.
It delivers 344 V clamping voltage at 0.87 A IPPM under 10/1000 µs waveform, with 0.110 %/°C temperature coefficient of VBR and 1.0 µA maximum reverse leakage at 214 V (VWM). The device meets UL 94 V-0 flammability and JESD201 Class 2 whisker resistance standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 214 V - Maximum continuous reverse operating voltage before conduction begins; defines safe operating margin below clamping threshold |
| VBR (Breakdown Voltage) | 237–263 V at 1.0 mA - Confirmed avalanche initiation range; ensures predictable turn-on during overvoltage events |
| VC (Clamping Voltage) | 344 V at IPPM = 0.87 A (10/1000 µs) - Peak voltage seen by protected circuit during worst-case transient; critical for IC/MOSFET survivability |
| PPPM (Peak Pulse Power) | 400 W - Sustained energy absorption capability under standard lightning-surge waveform; derates above 25 °C per Fig. 2 |
| RθJA | 120 °C/W - Junction-to-ambient thermal resistance; mandates use of specified 5.0 mm × 5.0 mm copper pads for rated power handling |
| IFSM | 40 A - Single half-sine surge rating (8.3 ms); supports inrush current immunity in DC power inputs |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood automotive environments |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD22-B102. Cathode identified by band marking; anode is unmarked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground when V > VBR |
| Anode (unbanded end) | Reference node | Typically tied to system ground or lower-potential rail; completes clamping path |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD per stress test requirements |
| Glass passivated junction | Ensures stable, repeatable avalanche characteristics over lifetime and across temperature extremes |
| MSL Level 1 (260 °C peak) | Enables standard reflow assembly without moisture sensitivity concerns or baking preconditioning |
| UL 94 V-0 molding compound | Meets flame-retardancy requirements for safety-critical automotive and industrial enclosures |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (<1 ns rise time), improving protection fidelity |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Suppresses load-dump spikes (up to 120 V) and alternator transients on 24 V battery-fed ECUs and body control modules. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between power input and ground, responding within <1 ns to limit voltage seen by downstream regulators and microcontrollers. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V logic supplies by clamping surges to ≤344 V while sustaining 400 W peak power per IEC 61000-4-5 compliance. |
Use Scenario: Shields analog front-end circuits of pressure/temperature sensors in factory automation systems from ESD and inductive switching noise on 4–20 mA or 0–10 V signal lines. IC Role / Device Role / Timing Role: Fast-response transient suppressor mounted at connector entry point, shunting ESD pulses (IEC 61000-4-2 ±8 kV contact) away from precision ADC inputs. Use Value: Maintains signal integrity with <1.0 µA leakage at 214 V, enabling high-impedance sensor bias networks without offset drift or measurement error. |
| Telecom DC Power Input Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: Guards PoE-powered network switches and base stations against induced surges from nearby lightning strikes on outdoor cabling infrastructure. IC Role / Device Role / Timing Role: Primary-level TVS on 48 V DC input rail, coordinated with upstream GDTs and downstream polymer PTCs for multi-stage protection architecture. Use Value: Delivers 344 V clamping at 0.87 A with 0.110 %/°C VBR tempco, ensuring consistent protection margin across -40 °C to +85 °C ambient operating range. |
Use Scenario: Protects gate drivers and MCU I/O in washing machine motor control boards from flyback voltage generated by brushed DC motor commutation. IC Role / Device Role / Timing Role: Unidirectional suppressor placed across motor terminals or between H-bridge high-side output and ground to clamp inductive kickback. Use Value: Withstands 40 A single-half-sine surge (8.3 ms), surviving repeated motor startup cycles without degradation in clamping performance. |
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/VBR/VC ratings but in larger SMB (DO-214AA) package; 100 W higher PPPM (500 W) due to improved thermal mass | Better suited for higher-energy surges where board space allows larger footprint; not drop-in compatible with SMA land pattern | Select SMBJ250A only if layout permits 2.54 mm pitch increase and thermal budget exceeds 400 W |
| 1.5KE250A | Through-hole TO-204AA (DO-41); identical electrical specs but 1.5 kW peak pulse rating (10/1000 µs) and higher IFSM (100 A) | Designed for legacy through-hole assembly or high-reliability military/aerospace systems requiring mechanical robustness | Choose 1.5KE250A only for through-hole designs or when 1.5 kW surge margin is mandatory and reflow compatibility is not required |
Compared with SMBJ250A and 1.5KE250A, P4SMA250A-E3/61 offers optimal balance of compact SMA footprint, AEC-Q101 qualification, and 400 W surge capability-making it the preferred choice for space-constrained automotive and industrial SMT assemblies where MSL Level 1 processing is essential.
Availability
P4SMA250A-E3/61 is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, telecom DC input safeguarding, and consumer appliance motor drive circuits requiring stable component supply and full RoHS compliance.
Supply support for P4SMA250A-E3/61 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-reliability transient suppression in automotive, industrial, and telecom systems-delivering consistent clamping performance, AEC-Q101 validation, and surface-mount scalability from 6.8 V to 540 V standoff voltages.
FAQ
What is the maximum clamping voltage of the P4SMA250A-E3/61 under standard surge conditions?
The P4SMA250A-E3/61 clamps to 344 V at 0.87 A peak pulse current under the industry-standard 10/1000 µs double-exponential waveform. This value is measured at TA = 25 °C with the device mounted on 0.2" × 0.2" copper pads per Vishay's recommended layout. Clamping voltage increases slightly with junction temperature, as defined by the device's 0.110 %/°C VBR temperature coefficient.
Is the P4SMA250A-E3/61 suitable for automotive applications?
Yes, the P4SMA250A-E3/61 is AEC-Q101 qualified and explicitly designated for automotive use with ordering code suffix "HE3" or "HM3". Its construction-including glass-passivated junction, MSL Level 1 rating, and operation up to +150 °C junction temperature-meets stringent automotive reliability requirements for engine control, body electronics, and ADAS power domains.
What is the standoff voltage (VWM) and why does it matter for P4SMA250A-E3/61 selection?
The P4SMA250A-E3/61 has a 214 V standoff voltage (VWM), meaning it remains non-conductive up to this DC or RMS voltage level. This parameter ensures no leakage or power loss during normal operation while maintaining sufficient margin below the 237–263 V breakdown range. Selecting VWM ≥ 1.1× system nominal voltage prevents false triggering in 24 V or 48 V automotive/industrial rails.
Does the P4SMA250A-E3/61 have bidirectional capability?
No, the P4SMA250A-E3/61 is a unidirectional TVS diode, indicated by the "A" suffix (not "CA"). It conducts only when reverse-biased beyond VBR, with polarity marked by a cathode band. For bidirectional protection-such as AC line or data bus applications-Vishay offers the P4SMA250CA variant, which lacks polarity marking and clamps symmetrically in both directions.
What is the thermal resistance and how does it affect PCB layout for P4SMA250A-E3/61?
The P4SMA250A-E3/61 has a typical RθJA of 120 °C/W. To achieve its rated 400 W peak pulse power, Vishay specifies mounting on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. Reducing pad area increases junction temperature rise during surge events, potentially degrading clamping consistency or causing thermal runaway-so strict adherence to the recommended layout is essential for full specification compliance.
P4SMA250A-E3/61 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-E3/61 FAQ
1.How can I place an order for P4SMA250A-E3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA250A-E3/61 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-E3/61 reliable?
The price and inventory of P4SMA250A-E3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA250A-E3/61 is usually 5 days.
3.What payment methods are accepted for P4SMA250A-E3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA250A-E3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA250A-E3/61?
P4SMA250A-E3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA250A-E3/61 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-E3/61?
For technical support, including P4SMA250A-E3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA250A-E3/61 requirements.
6.How does Aetrix verify that P4SMA250A-E3/61 is sourced from the original manufacturer or authorized distributors?
All P4SMA250A-E3/61 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-E3/61 meets industry standards.
7.What is the process for return or replacement of P4SMA250A-E3/61?
All P4SMA250A-E3/61 units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA250A-E3/61, 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-E3/61 part is unused and in its original packaging.
Return procedure for P4SMA250A-E3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA250A-E3/61 Tags
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