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Vishay General Semiconductor - Diodes Division P4SMA250A-M3/61
- Part No.:
- P4SMA250A-M3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA250A-M3/61.pdf
- Description:
- TVS DIODE 214VWM 344VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,070
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Product details
Overview
P4SMA250A-M3/61 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 - deployed in industrial power supplies and automotive sensor protection circuits.
For engineers reviewing the P4SMA250A-M3/61 datasheet, P4SMA250A-M3/61 pinout, P4SMA250A-M3/61 application, or P4SMA250A-M3/61 equivalent, key selection criteria include clamping voltage (VC = 344 V), thermal resistance (RθJA = 120 °C/W), AEC-Q101 qualification status, halogen-free RoHS compliance (M3 suffix), 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 low incremental surge resistance ensures minimal voltage overshoot during transient events up to 400 W peak pulse power (derated to 300 W above 91 V).
The device meets J-STD-020 MSL Level 1 moisture sensitivity and supports reflow soldering up to 260 °C peak temperature. With a maximum junction temperature of 150 °C and thermal resistance of 30 °C/W from junction-to-lead, it delivers robust thermal performance when mounted per recommended pad layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 214 V - Maximum continuous reverse voltage before significant leakage; defines operating margin below clamping threshold |
| VBR (Breakdown Voltage) | 237–263 V at 1 mA - Confirmed avalanche onset range; ensures predictable turn-on during overvoltage events |
| VC (Clamping Voltage) | 344 V at IPPM - Peak voltage seen by protected circuit during 10/1000 µs surge; critical for downstream IC survivability |
| IPPM (Peak Pulse Current) | 344 A - Maximum non-repetitive surge current supported; determines energy-handling capability per IEC 61000-4-5 |
| PPPM (Peak Pulse Power) | 400 W - Surge energy absorption capacity with 10/1000 µs waveform; derates to 300 W above 91 V per spec |
| ID (Reverse Leakage) | 1.0 µA at VWM - Low standby leakage preserves system efficiency and avoids false triggering in high-impedance nodes |
| RθJA | 120 °C/W - Junction-to-ambient thermal resistance; informs PCB copper area requirements for thermal management |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile plastic case with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102. Cathode identified by band marking; anode is unmarked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient clamp output node | Connected to protected line; conducts surge current to ground during overvoltage event |
| Anode (unbanded end) | Reference/return path | Typically tied to system ground or lower-potential rail; completes clamping path during avalanche conduction |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power rating | Supports IEC 61000-4-5 Level 4 surge immunity testing (4 kV line-earth) without degradation |
| AEC-Q101 qualified (HM3 suffix variant) | Validated for automotive-grade reliability including temperature cycling, HAST, and mechanical shock |
| Halogen-free & RoHS-compliant (M3) | Meets EU Directive 2011/65/EU and IPC-1752A material declaration requirements |
| MSL Level 1 moisture sensitivity | Enables standard SMT reflow without baking; compatible with 260 °C peak profile per J-STD-020 |
| Glass passivated junction | Ensures stable VBR tolerance and long-term parameter stability under thermal and electrical stress |
Applications
| Industrial Power Supply Protection | Automotive Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting DC input rails of programmable logic controllers (PLCs) against load dump and inductive switching transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between +24 V rail and chassis ground to clamp surges exceeding 214 V. Use Value: Limits transient voltage to ≤344 V, preventing damage to upstream DC-DC converters and microcontrollers rated for 36 V max input. |
Use Scenario: Safeguarding CAN bus transceivers and analog sensor inputs (e.g., pressure, temperature) in engine control units. IC Role / Device Role / Timing Role: Clamping device on sensor supply line (VSENSE) referenced to vehicle ground, triggered within nanoseconds of ESD or ISO 7637-2 pulse 1/2a. Use Value: Maintains signal integrity by suppressing transients before they reach sensitive analog front-ends, preserving ADC accuracy and communication uptime. |
| Telecom AC/DC Adapter Input Stage | Renewable Energy Inverter DC Link |
|
Use Scenario: Secondary-side overvoltage suppression in offline AC/DC adapters used in network infrastructure equipment. IC Role / Device Role / Timing Role: Mounted across bulk capacitor terminals to absorb leakage inductance spikes from transformer reset and MOSFET switching. Use Value: Prevents capacitor overvoltage failure and reduces need for oversized electrolytics, lowering BOM cost and footprint. |
Use Scenario: Transient suppression on high-voltage DC link (300–400 V) of solar microinverters exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Parallel-connected TVS on DC+ to DC− rail, activated during fast-rising grid disturbances per IEC 61000-4-5 Ed.3. Use Value: Enables compliance with UL 1741 SA and IEEE 1547-2018 grid-interconnection standards through verified 344 V clamping at 344 A. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ250A | Same VWM (214 V), identical SMA package, but lower PPPM (400 W vs. 400 W), higher VC (354 V), and no AEC-Q101 option | Lacks automotive qualification; suitable for commercial/industrial use only | Select when AEC-Q101 is not required and board space allows same footprint |
| 1.5SMC250A | Higher package thermal mass (SMC/DO-214AB), 1.5 kW PPPM rating, VC = 344 V, but larger footprint and 2.5× weight | Better thermal handling for high-duty-cycle surges; incompatible with fine-pitch SMT lines | Choose for high-reliability industrial systems where PCB real estate permits larger package and higher surge margin |
Compared with P4SMA250A-M3/61, SMAJ250A offers identical clamping but lacks automotive qualification, while 1.5SMC250A provides superior thermal robustness at the cost of board area and assembly compatibility - making P4SMA250A-M3/61 optimal for space-constrained, AEC-Q101–required automotive and industrial designs.
Availability
P4SMA250A-M3/61 is available at Aetrix Electronics and suitable for industrial power supplies, automotive sensor interfaces, telecom adapter input stages, and renewable energy inverter DC links requiring stable component supply, halogen-free compliance, and AEC-Q101 traceability.
Supply support for P4SMA250A-M3/61 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, precision, and application-specific optimization.
The P4SMA Series targets cost-sensitive, high-volume transient suppression needs in automotive, industrial, and telecom systems - engineered for automated assembly, thermal resilience, and consistent clamping performance across temperature and lifetime.
FAQ
What is the clamping voltage of P4SMA250A-M3/61 under a 10/1000 µs surge?
The clamping voltage (VC) of P4SMA250A-M3/61 is 344 V when subjected to its rated peak pulse current (IPPM = 344 A) using a 10/1000 µs waveform. This value is measured per Figure 1 in the Vishay datasheet 88367 and reflects the maximum voltage imposed on the protected circuit during transient events - a critical parameter for ensuring downstream ICs remain within absolute maximum ratings. The P4SMA250A-M3/61 maintains this clamping performance across its specified operating temperature range.
Is P4SMA250A-M3/61 qualified for automotive applications?
P4SMA250A-M3/61 itself is halogen-free and RoHS-compliant but not AEC-Q101 qualified; however, the closely related P4SMA250AHM3_B/H variant carries full AEC-Q101 qualification. The "M3" suffix denotes halogen-free construction, while "HM3" adds automotive qualification. Engineers selecting P4SMA250A-M3/61 for automotive use must verify system-level validation requirements - if AEC-Q101 is mandatory, P4SMA250AHM3_B/H is the compliant alternative with identical electrical specs and SMA packaging.
What is the thermal resistance of P4SMA250A-M3/61, and how does it affect PCB layout?
P4SMA250A-M3/61 has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W and junction-to-lead (RθJL) of 30 °C/W. These values assume mounting on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To maintain safe junction temperatures under sustained power dissipation (PD = 3.3 W), designers must allocate sufficient copper area and consider thermal vias - undersized pads will elevate RθJA beyond 120 °C/W, risking thermal runaway during repetitive surges. The P4SMA250A-M3/61 datasheet specifies exact pad dimensions in Figure 5.
How does the M3 suffix differ from E3 in P4SMA250A-M3/61?
The "M3" suffix in P4SMA250A-M3/61 indicates halogen-free, RoHS-compliant construction with matte tin-plated leads meeting JESD 201 Class 2 whisker resistance, whereas "E3" denotes standard RoHS compliance without halogen-free assurance. Both meet UL 94 V-0 flammability and J-STD-002 solderability, but M3 is required for strict environmental compliance in EU automotive and consumer markets. The P4SMA250A-M3/61 shares identical electrical characteristics with its E3 counterpart - only material content and plating differ.
Can P4SMA250A-M3/61 be used in bidirectional configurations?
No - P4SMA250A-M3/61 is a unidirectional TVS diode, identifiable by its cathode band marking. Bidirectional operation requires a CA-suffixed part such as P4SMA250CA. Using P4SMA250A-M3/61 in reverse-biased configurations risks permanent junction damage due to lack of symmetrical avalanche structure. For AC line or differential signal protection, always select the designated bidirectional variant (e.g., P4SMA250CA) which guarantees matched breakdown in both polarities per datasheet Table 1.
P4SMA250A-M3/61 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:
- 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):
- 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-M3/61 FAQ
1.How can I place an order for P4SMA250A-M3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA250A-M3/61 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-M3/61 reliable?
The price and inventory of P4SMA250A-M3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA250A-M3/61 is usually 5 days.
3.What payment methods are accepted for P4SMA250A-M3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA250A-M3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA250A-M3/61?
P4SMA250A-M3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA250A-M3/61 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-M3/61?
For technical support, including P4SMA250A-M3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA250A-M3/61 requirements.
6.How does Aetrix verify that P4SMA250A-M3/61 is sourced from the original manufacturer or authorized distributors?
All P4SMA250A-M3/61 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-M3/61 meets industry standards.
7.What is the process for return or replacement of P4SMA250A-M3/61?
All P4SMA250A-M3/61 units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA250A-M3/61, 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-M3/61 part is unused and in its original packaging.
Return procedure for P4SMA250A-M3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA250A-M3/61 Tags
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