My Inquiry
My Account
Vishay General Semiconductor - Diodes Division P4SMA250AHE3_AIH
- Part No.:
- P4SMA250AHE3_AIH
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA250AHE3_AIH.pdf
- Description:
- TVS DIODE 214VWM 344VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,512
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P4SMA250AHE3_AIH from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in the P4SMA series, designed for robust overvoltage protection of sensitive electronics. It features a 250 V standoff voltage (VWM), 237–263 V breakdown voltage (VBR) at 1 mA test current, and clamps transients to ≤344 V at 0.87 A peak pulse current under 10/1000 µs waveform - ideal for protecting power rails and signal lines in industrial motor drives and automotive ECUs.
For engineers reviewing the P4SMA250AHE3_AIH datasheet, P4SMA250AHE3_AIH pinout, P4SMA250AHE3_AIH application, or P4SMA250AHE3_AIH equivalent, key selection criteria include its AEC-Q101 qualification, SMA (DO-214AC) package compatibility with automated placement, 400 W peak pulse power rating, and low thermal resistance (RθJL = 30 °C/W) enabling reliable operation in high-temperature environments up to TJ = 150 °C.
Technical Context
The P4SMA250AHE3_AIH operates as a unidirectional clamping device, leveraging a glass-passivated silicon junction to deliver fast response (<1 ns) and low incremental surge resistance. Its breakdown threshold is tightly specified (237–263 V at IT = 1 mA), with clamping voltage fixed at ≤344 V at IPPM = 0.87 A, ensuring predictable protection behavior during ESD and lightning-induced surges.
Rated for 400 W peak pulse power (10/1000 µs), it sustains 3.3 W steady-state power dissipation on an infinite heatsink at TA = 50 °C and handles 40 A non-repetitive forward surge current (8.3 ms half-sine). Its MSL Level 1 rating (260 °C reflow peak) and matte tin-plated leads meet J-STD-002 solderability requirements.
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 breakdown. |
| VBR (Breakdown Voltage) | 237–263 V at IT = 1 mA - Precise voltage threshold where device enters avalanche conduction; ensures consistent clamping onset. |
| VC (Clamping Voltage) | ≤344 V at IPPM = 0.87 A - Peak voltage seen by protected circuit during worst-case transient; determines maximum stress on downstream components. |
| PPPM (Peak Pulse Power) | 400 W (10/1000 µs) - Transient energy-handling capability; sufficient for IEC 61000-4-5 Level 4 surge immunity compliance. |
| TJ max. | 150 °C - Maximum junction temperature; enables use in under-hood automotive and industrial environments without derating. |
| RθJL | 30 °C/W - Low junction-to-lead thermal resistance; supports efficient heat transfer to PCB copper pads during repetitive surge events. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC standard. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile case with matte tin-plated leads. Cathode indicated by band; polarity critical for unidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to protected circuit ground or low-side reference. | Defines conduction path during surge: current flows anode→cathode when reverse voltage exceeds VBR. |
| Cathode | Current exit terminal in forward bias; connected to line being protected (e.g., 24 V rail or CAN bus). | Band-marked end; must be tied to higher-potential node to enable clamping action during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable avalanche characteristics and long-term reliability under repeated surge stress without parameter drift. |
| MSL Level 1 (260 °C peak) | Enables single-reflow assembly without moisture-related popcorn failure; eliminates pre-bake requirement in SMT lines. |
| 400 W peak pulse power (10/1000 µs) | Provides headroom for high-energy transients such as load dump (ISO 7637-2) and coupled lightning surges (IEC 61000-4-5). |
| AEC-Q101 qualification | Validates suitability for automotive powertrain and body electronics where field failure risk must be minimized. |
| Low RθJL (30 °C/W) | Reduces thermal impedance to PCB copper, improving surge duty cycle tolerance and enabling compact layout without external heatsinking. |
Applications
| Industrial Motor Drives | Automotive Engine Control Units |
|---|---|
Use Scenario: Protection of 24 V DC input rails against inductive kickback from solenoid valves and relay coils. IC Role / Device Role / Timing Role: Unidirectional TVS placed between rail and chassis ground to clamp transients before they reach DC-DC converters and microcontrollers. Use Value: Clamps 24 V rail spikes to ≤344 V, preventing latch-up or gate oxide damage in downstream MOSFET drivers rated for 40 V absolute maximum. |
Use Scenario: Surge suppression on LIN bus lines exposed to battery transients and ESD in engine bay modules. IC Role / Device Role / Timing Role: Standoff-rated TVS connected between LIN signal line and ground, absorbing ISO 10605 ESD pulses and ISO 7637-2 burst noise. Use Value: Maintains signal integrity by limiting voltage excursions to <344 V while exhibiting <1 µA leakage at 214 V, avoiding bus contention or false wake-up. |
| Telecom Power Supplies | Renewable Energy Inverters |
Use Scenario: Input-stage protection for 48 V telecom rectifiers subjected to lightning-induced surges on AC mains input. IC Role / Device Role / Timing Role: Primary-level TVS on secondary-side DC output, coordinated with upstream MOVs to divert energy before reaching DC/DC isolation stages. Use Value: Withstands 400 W pulses without degradation, enabling compliance with GR-1089-CORE Level 3 surge immunity requirements. |
Use Scenario: DC-link overvoltage protection in solar string inverters during rapid PV array disconnection or grid fault recovery. IC Role / Device Role / Timing Role: Parallel-connected TVS across 600 V DC-link capacitors to absorb stored energy during IGBT turn-off overshoot. Use Value: Fast <1 ns response captures nanosecond-scale switching spikes; 150 °C TJ rating ensures stability during extended high-temperature operation. |
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-E3/52 (Vishay) | Same VWM/VBR/VC specs but SMB (DO-214AA) package; 10% larger footprint, 20% higher RθJA (140 vs. 120 °C/W). | Better suited for manual prototyping or lower-density boards where space permits larger package. | Select SMBJ250A-E3/52 only if board layout allows DO-214AA pad dimensions and thermal budget accommodates higher junction rise. |
| 1.5SMC250A (ON Semiconductor) | Identical electrical specs (214 V VWM, 237–263 V VBR, ≤344 V VC), same SMA package, but not AEC-Q101 qualified. | Limited to commercial/industrial use; unsuitable for automotive production due to missing automotive reliability validation. | Choose 1.5SMC250A only for cost-sensitive non-automotive designs where AEC-Q101 is not mandated. |
Compared with SMBJ250A-E3/52 and 1.5SMC250A, the P4SMA250AHE3_AIH uniquely combines AEC-Q101 qualification, SMA package size, and 400 W surge rating - making it the only option among the three validated for automotive under-hood deployment without layout or thermal redesign.
Availability
P4SMA250AHE3_AIH is available at Aetrix Electronics and suitable for industrial motor drives, automotive engine control units, and telecom power supplies requiring stable component supply, AEC-Q101 compliance, and repeatable surge performance across production batches.
Supply support for P4SMA250AHE3_AIH 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The P4SMA series was developed to deliver high-power, surface-mount TVS protection for automotive and industrial systems where space constraints, thermal management, and AEC-Q101 compliance are mandatory design requirements.
FAQ
What is the maximum clamping voltage of the P4SMA250AHE3_AIH under standard test conditions?
The P4SMA250AHE3_AIH has a maximum clamping voltage (VC) of 344 V when subjected to a 10/1000 µs peak pulse current of 0.87 A. This value is measured per JEDEC standards and represents the highest voltage the device allows across its terminals during a defined transient event - a critical parameter for ensuring downstream ICs remain within their absolute maximum ratings. The P4SMA250AHE3_AIH maintains this clamping performance consistently across its qualified temperature range.
Is the P4SMA250AHE3_AIH suitable for automotive applications?
Yes, the P4SMA250AHE3_AIH is AEC-Q101 qualified and specifically designated for automotive use, as confirmed by its HE3 suffix and documentation in Vishay's P4SMA series datasheet revision 09-Jan-2024. It undergoes rigorous stress testing including temperature cycling, high-temperature reverse bias, and ESD verification. The P4SMA250AHE3_AIH is commonly deployed in engine control units, body control modules, and ADAS power supplies where reliability under harsh environmental conditions is essential.
What does the "HE3" suffix in P4SMA250AHE3_AIH indicate?
The "HE3" suffix in P4SMA250AHE3_AIH denotes RoHS-compliant construction with AEC-Q101 qualification, distinguishing it from commercial-grade variants (e.g., E3) and halogen-free automotive versions (HM3). The "H" indicates tape-and-reel packaging per ordering code H (1800 units per 7-inch reel), and "_AIH" specifies the revision level and packaging configuration. This full suffix confirms the P4SMA250AHE3_AIH meets both environmental and automotive reliability standards required for Tier 1 supplier BOMs.
How does the thermal performance of the P4SMA250AHE3_AIH compare to similar TVS diodes?
The P4SMA250AHE3_AIH offers a typical junction-to-lead thermal resistance (RθJL) of 30 °C/W and junction-to-ambient (RθJA) of 120 °C/W when mounted on 0.2" × 0.2" copper pads - superior to many competing SMA-packaged TVS devices. This enables higher surge duty cycles and better sustained power handling. Unlike alternatives with higher RθJA, the P4SMA250AHE3_AIH maintains stable clamping performance even during repetitive transients in enclosed enclosures, directly supporting the P4SMA250AHE3_AIH's use in thermally constrained automotive and industrial modules.
Can the P4SMA250AHE3_AIH be used in bidirectional configurations?
No, the P4SMA250AHE3_AIH is a unidirectional TVS diode, as indicated by its "A" suffix and absence of "CA" in the part number. Bidirectional variants (e.g., P4SMA250CA) exist in the same family but feature symmetrical breakdown in both polarities. Using the P4SMA250AHE3_AIH in reverse-biased configurations will result in forward conduction at ~0.7–1.0 V, offering no meaningful overvoltage protection. For bidirectional protection, select the explicitly marked CA version or pair two unidirectional devices in series opposition.
P4SMA250AHE3_AIH 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:
- -
- 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_AIH FAQ
1.How can I place an order for P4SMA250AHE3_AIH through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA250AHE3_AIH 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_AIH reliable?
The price and inventory of P4SMA250AHE3_AIH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA250AHE3_AIH is usually 5 days.
3.What payment methods are accepted for P4SMA250AHE3_AIH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA250AHE3_AIH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA250AHE3_AIH?
P4SMA250AHE3_AIH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA250AHE3_AIH 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_AIH?
For technical support, including P4SMA250AHE3_AIH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA250AHE3_AIH requirements.
6.How does Aetrix verify that P4SMA250AHE3_AIH is sourced from the original manufacturer or authorized distributors?
All P4SMA250AHE3_AIH 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_AIH meets industry standards.
7.What is the process for return or replacement of P4SMA250AHE3_AIH?
All P4SMA250AHE3_AIH units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA250AHE3_AIH, 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_AIH part is unused and in its original packaging.
Return procedure for P4SMA250AHE3_AIH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA250AHE3_AIH Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
