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Vishay General Semiconductor - Diodes Division P4SMA250AHE3_A/I
- Part No.:
- P4SMA250AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA250AHE3_A/I.pdf
- Description:
- TVS DIODE 214VWM 344VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,401
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Product details
Overview
P4SMA250AHE3_A/I 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 344 A peak pulse current (IPPM) under 10/1000 µs waveform. It delivers 400 W peak pulse power, features AEC-Q101 qualification, and protects MOSFETs and ICs against inductive switching transients in automotive power electronics.
For engineers reviewing the P4SMA250AHE3_A/I datasheet, P4SMA250AHE3_A/I pinout, P4SMA250AHE3_A/I application, or P4SMA250AHE3_A/I equivalent, this page provides verified electrical parameters, clamping behavior, thermal resistance, automotive qualification status, and real-world protection use cases - all confirmed from Vishay's official P4SMA series documentation (Doc #88367, Rev 09-Jan-2024).
Technical Context
This unidirectional TVS operates with a glass-passivated junction and exhibits low incremental surge resistance, enabling fast response to ESD and lightning-induced surges. Its clamping voltage is 344 V at 344 A IPPM, and it maintains stable performance across -65 °C to +150 °C junction temperature range.
The device complies with J-STD-020 MSL Level 1, supports lead-free reflow up to 260 °C peak, and uses matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Polarity is marked by a cathode band; no marking applies to bidirectional variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 214 V - Maximum continuous reverse voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR (Breakdown Voltage) | 237–263 V at 1 mA - Confirmed minimum/maximum threshold where avalanche conduction initiates reliably. |
| VC (Clamping Voltage) | 344 V at 344 A IPPM - Peak voltage seen by protected circuit during worst-case 10/1000 µs transient; determines stress on downstream components. |
| PPPM (Peak Pulse Power) | 400 W - Sustained transient energy absorption capability under standard 10/1000 µs waveform; derates above 25 °C ambient. |
| RθJA | 120 °C/W - Junction-to-ambient thermal resistance on standard 0.2" × 0.2" copper pads; critical for thermal design in high-reliability layouts. |
| TJ max | +150 °C - Maximum allowable junction temperature; enables operation in under-hood automotive environments. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC specification. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile case with UL 94 V-0 molding compound and matte tin-plated leads. Cathode indicated by band on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to system ground or low-side reference in unidirectional TVS configuration. | Provides return path during clamping; must be routed with low-inductance connection to minimize voltage overshoot. |
| Cathode | Protected line connection point; reverse-biased during normal operation, avalanches during overvoltage events. | Directly interfaces with sensitive node (e.g., power rail or signal line); band-marked for orientation verification during placement. |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 µs) | Enables robust suppression of high-energy transients common in 24 V automotive power systems without thermal runaway. |
| AEC-Q101 qualification | Validates suitability for automotive powertrain and body electronics where field failure risk must be minimized. |
| Low incremental surge resistance | Reduces clamping voltage overshoot during fast-rising transients (<1 ns rise time), improving protection margin for SiC MOSFET gates. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking, simplifying SMT manufacturing for high-volume automotive PCB assembly. |
| Glass passivated junction | Ensures long-term stability of breakdown characteristics under thermal cycling and humidity exposure in harsh environments. |
Applications
| Automotive Power Rail Protection | Industrial Motor Drive DC Bus |
|---|---|
Use Scenario: Suppresses load-dump spikes (up to 60 V, 400 ms) and inductive kickback from solenoids/relays in 24 V vehicle subsystems. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and ECUs or power modules to clamp transients before they reach LDOs or gate drivers. Use Value: Limits peak voltage to ≤344 V during 344 A surge, preventing latch-up or oxide breakdown in 40 V-rated power management ICs. |
Use Scenario: Protects IGBT/SiC half-bridge inverters from commutation-induced voltage spikes during motor braking or fault conditions. IC Role / Device Role / Timing Role: Mounted across DC bus rails to absorb regenerative energy and suppress ringing caused by stray inductance. Use Value: Clamps 10/1000 µs transients within 1 ns response, reducing voltage overshoot that could exceed 650 V IGBT blocking rating. |
| Telecom Power Interface | Industrial Sensor Signal Line |
Use Scenario: Shields PoE-powered equipment (e.g., IP cameras) from lightning-induced surges entering via Ethernet cables. IC Role / Device Role / Timing Role: Placed on primary-side 48 V input rail upstream of DC/DC converters to prevent damage during Category A/B surge events. Use Value: Absorbs 400 W pulse energy while maintaining <344 V clamping, preserving integrity of isolated flyback controllers and optocouplers. |
Use Scenario: Safeguards analog sensor outputs (e.g., pressure or temperature transducers) from ESD and cable discharge events in factory automation. IC Role / Device Role / Timing Role: Connected between signal line and ground near connector to shunt fast transients before reaching ADC input or instrumentation amplifier. Use Value: Delivers sub-nanosecond response and <1 µA leakage at 214 V, ensuring minimal impact on 16-bit measurement accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ250A-E3/52 (Vishay) | Higher package thermal mass (SMB/DO-214AA), 100 W higher PPPM (500 W), RθJA = 85 °C/W vs. 120 °C/W. | Better suited for sustained surge duty cycles or higher ambient temperatures due to improved thermal dissipation. | Select when board layout allows larger footprint and thermal performance outweighs size constraints. |
| 1.5KE250A (ON Semiconductor) | Through-hole DO-201 package, same VWM/VBR/VC specs, but 1.5 kW peak power rating and higher IFSM (200 A). | Preferred for prototyping, high-surge test fixtures, or legacy through-hole designs requiring mechanical robustness. | Choose only if through-hole mounting is mandatory; not drop-in compatible with P4SMA250AHE3_A/I's SMA footprint. |
Compared with SMBJ250A-E3/52 and 1.5KE250A, P4SMA250AHE3_A/I offers optimal balance of AEC-Q101 compliance, compact SMA packaging, and validated performance in automated SMT lines - making it the preferred choice for space-constrained automotive and industrial PCBs requiring zero-layout redesign.
Availability
P4SMA250AHE3_A/I is available at Aetrix Electronics and suitable for automotive power electronics, industrial motor drives, telecom power interfaces, and sensor signal conditioning requiring stable component supply and AEC-Q101 traceability.
Supply support for P4SMA250AHE3_A/I 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, efficiency, and automotive-grade validation.
The P4SMA Series was developed specifically for surface-mount transient suppression in automotive, industrial, and telecom systems where compact size, AEC-Q101 compliance, and repeatable clamping performance are mandatory.
FAQ
What is the clamping voltage of P4SMA250AHE3_A/I at its rated peak pulse current?
The clamping voltage (VC) of P4SMA250AHE3_A/I is 344 V at 344 A peak pulse current (IPPM) under the standardized 10/1000 µs waveform. This value is measured per Figure 1 in Vishay document 88367 and represents the maximum voltage imposed on the protected circuit during worst-case transient events. The P4SMA250AHE3_A/I maintains this clamping performance across its qualified operating temperature range.
Is P4SMA250AHE3_A/I qualified for automotive applications?
Yes, P4SMA250AHE3_A/I is AEC-Q101 qualified, as confirmed in Vishay's ordering information table (page 3, note 2) and product marking convention ("HE3" suffix denotes RoHS-compliant and AEC-Q101 qualified). This qualification covers stress tests including temperature cycling, high-temperature reverse bias, and ESD, validating its use in automotive power distribution modules and body control units.
What does the "_A/I" suffix mean in P4SMA250AHE3_A/I?
The "_A/I" suffix in P4SMA250AHE3_A/I indicates packaging: "A" denotes the revision level (Revision A for P4SMA250A family), and "I" specifies 13-inch diameter plastic tape-and-reel delivery containing 7500 units. This matches Vishay's ordering code structure shown on page 3 of document 88367, where "/I" corresponds to high-volume SMT reel format.
What is the maximum operating junction temperature for P4SMA250AHE3_A/I?
The maximum operating junction temperature (TJ max) for P4SMA250AHE3_A/I is +150 °C, as specified in the "Maximum Ratings" table (page 1) of Vishay document 88367. This rating enables reliable operation in under-hood automotive environments and industrial enclosures where ambient temperatures exceed 105 °C, provided thermal design accounts for RθJA = 120 °C/W.
How does P4SMA250AHE3_A/I differ from bidirectional TVS diodes like P4SMA250CA?
P4SMA250AHE3_A/I is unidirectional and features polarity marking (cathode band), allowing it to conduct only in reverse avalanche mode - ideal for DC rail protection. In contrast, P4SMA250CA is bidirectional with symmetrical clamping in both directions and no polarity marking, suited for AC line or differential signal protection. Their VWM (214 V vs. 185 V max) and VBR ranges also differ per datasheet Table on page 2.
P4SMA250AHE3_A/I 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
P4SMA250AHE3_A/I FAQ
1.How can I place an order for P4SMA250AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA250AHE3_A/I 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 P4SMA250AHE3_A/I reliable?
The price and inventory of P4SMA250AHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA250AHE3_A/I is usually 5 days.
3.What payment methods are accepted for P4SMA250AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA250AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA250AHE3_A/I?
P4SMA250AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA250AHE3_A/I 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 P4SMA250AHE3_A/I?
For technical support, including P4SMA250AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA250AHE3_A/I requirements.
6.How does Aetrix verify that P4SMA250AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All P4SMA250AHE3_A/I 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 P4SMA250AHE3_A/I meets industry standards.
7.What is the process for return or replacement of P4SMA250AHE3_A/I?
All P4SMA250AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA250AHE3_A/I, 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 P4SMA250AHE3_A/I part is unused and in its original packaging.
Return procedure for P4SMA250AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA250AHE3_A/I Tags
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