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Vishay General Semiconductor - Diodes Division P6SMB250AHM3_A/H
- Part No.:
- P6SMB250AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB250AHM3_A/H.pdf
- Description:
- TVS DIODE 214VWM 344VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,201
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Product details
Overview
P6SMB250AHM3_A/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for high-energy surge protection in power rails and signal lines. It features a 250 V standoff voltage (VWM), 263 V minimum breakdown voltage (VBR), 344 A peak pulse current (IPPM), and 600 W peak pulse power (PPPM) with 10/1000 μs waveform - deployed in automotive-grade power supply inputs and industrial motor drive control circuits.
For engineers reviewing the P6SMB250AHM3_A/H datasheet, P6SMB250AHM3_A/H pinout, P6SMB250AHM3_A/H application, or P6SMB250AHM3_A/H equivalent, key selection criteria include clamping voltage (VC = 344 V), AEC-Q101 qualification status, SMB (DO-214AA) package compatibility, and thermal resistance (RθJA = 100 °C/W) for board-level thermal design validation.
Technical Context
The P6SMB250AHM3_A/H operates as a unidirectional avalanche diode, conducting only when reverse voltage exceeds its breakdown threshold (VBR = 237–263 V at IT = 1 mA). Its glass-passivated junction ensures stable leakage performance (<1.0 μA at VWM) and fast response time (<1.0 ns) to transient events such as ESD, lightning-induced surges, and inductive switching spikes.
Designed for mounting on 0.2" × 0.2" copper pads, it delivers 600 W peak pulse power under JEDEC-standard 10/1000 μs waveform with 0.01% duty cycle. Its MSL Level 1 rating (260 °C reflow peak) and halogen-free, RoHS-compliant construction support automated SMT assembly in automotive and industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 214 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC/AC rail margin. |
| VBR (Breakdown Voltage) | 237–263 V at IT = 1 mA - Confirmed avalanche initiation range; ensures predictable turn-on during transients. |
| VC (Clamping Voltage) | 344 V at IPPM = 344 A - Peak voltage seen by protected circuit during 10/1000 μs surge; critical for downstream IC survival. |
| PPPM (Peak Pulse Power) | 600 W - Energy-handling capacity under standardized surge waveform; validates robustness against IEC 61000-4-5 Level 4 threats. |
| ID (Reverse Leakage) | ≤1.0 μA at VWM - Minimal standby power loss and noise coupling; essential for low-power sensor interfaces. |
| TJ max. | 150 °C - Maximum junction temperature; enables operation in under-hood automotive or enclosed industrial enclosures. |
| RθJA | 100 °C/W - Thermal resistance from junction to ambient; used to calculate temperature rise under sustained power dissipation. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102. Cathode indicated by band; polarity-critical for unidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to system ground or lower-potential rail; completes clamping path during reverse overvoltage. |
| Cathode | Reverse-biased input terminal | Connected to protected line (e.g., 24 V supply rail); blocks normal operation but avalanches during surge. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive power electronics per stress test requirements - supports under-hood and battery-line applications. |
| Halogen-free & RoHS-compliant | Meets environmental compliance mandates for industrial and consumer OEMs without compromising surge robustness. |
| 600 W peak pulse power | Withstands repeated 10/1000 μs transients up to 344 A - sufficient for IEC 61000-4-5 4 kV/2 Ω coupling network testing. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (<1 ns response), improving protection fidelity for sensitive gate drivers. |
| MSL Level 1 moisture sensitivity | Enables standard reflow profile (peak 260 °C) without baking - reduces manufacturing complexity and cost. |
Applications
| Automotive Power Rail Protection | Industrial Motor Drive Control |
|---|---|
|
Use Scenario: Protecting 24 V battery-fed ECUs from load-dump transients and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and DC-DC converter input. Use Value: Clamps 344 V surges while maintaining <1.0 μA leakage - preserves low-quiescent-current design integrity. |
Use Scenario: Safeguarding gate driver ICs from inductive kickback in 3-phase BLDC inverters. IC Role / Device Role / Timing Role: Fast-clamping diode across high-side MOSFET source-drain path. Use Value: Sub-1 ns response limits voltage overshoot beyond 600 V MOSFET rating - prevents destructive avalanche failure. |
| Telecom DC Power Input | Renewable Energy Charge Controller |
|
Use Scenario: Shielding PoE-powered equipment from induced surges on 48 V DC input lines. IC Role / Device Role / Timing Role: Primary surge suppression stage upstream of DC-DC isolation module. Use Value: 600 W rating handles multi-kV lightning-induced surges per IEC 61000-4-5; SMB footprint fits dense telecom PCB layouts. |
Use Scenario: Guarding solar charge controller microcontroller inputs against PV string voltage transients. IC Role / Device Role / Timing Role: Standoff-rated TVS on analog sensing lines monitoring battery voltage and current. Use Value: 214 V VWM allows direct placement on 150–200 V nominal PV strings; <1 μA leakage avoids measurement drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ250AHE3_A/H | Same VWM/VBR/VC specs; identical SMB package; AEC-Q101 qualified; differs in packaging code (HE3 vs HM3) and lead finish (Sn vs matte Sn). | Identical functional use in automotive and industrial power rails; validated for same surge standards. | Select when requiring standard RoHS-compliant (non-halogen-free) variant with identical electrical performance. |
| 1.5SMC250A | Higher RθJA (125 °C/W vs 100 °C/W); same VWM/VBR/VC; larger SMC (DO-214AB) package; not AEC-Q101 qualified. | Suitable for non-automotive industrial use where board space permits larger footprint and thermal derating is acceptable. | Choose only if SMB footprint constraint is relaxed and AEC-Q101 certification is unnecessary. |
Compared with SMBJ250AHE3_A/H, P6SMB250AHM3_A/H offers halogen-free construction and tighter thermal resistance - critical for high-density automotive modules. Versus 1.5SMC250A, it provides superior thermal performance and automotive qualification but requires strict SMB layout adherence.
Availability
P6SMB250AHM3_A/H is available at Aetrix Electronics and suitable for automotive power distribution, industrial motor control, telecom DC input protection, and renewable energy charge controller designs requiring stable component supply and long-term lifecycle assurance.
Supply support for P6SMB250AHM3_A/H 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 and application-specific validation.
The P6SMB Series targets high-reliability transient suppression in automotive, industrial, and telecom infrastructure - engineered for AEC-Q101 compliance, automated assembly, and robust surge handling in harsh environments.
FAQ
What is the clamping voltage of the P6SMB250AHM3_A/H under maximum rated surge current?
The P6SMB250AHM3_A/H has a maximum clamping voltage (VC) of 344 V at its peak pulse current (IPPM) of 344 A, measured using the standard 10/1000 μs waveform. This value is specified in the Vishay datasheet (Document Number: 88370, Rev. 09-Jan-2024) and defines the upper voltage limit imposed on protected circuitry during worst-case transient events. The P6SMB250AHM3_A/H maintains this clamping performance across its full operating temperature range.
Is the P6SMB250AHM3_A/H AEC-Q101 qualified, and what does the "HM3" suffix indicate?
Yes, the P6SMB250AHM3_A/H is AEC-Q101 qualified, as confirmed in the Vishay ordering information table (page 3) where "_D" denotes AEC-Q101 qualification for P6SMB250A through P6SMB540A variants. The "HM3" suffix specifies halogen-free, RoHS-compliant construction with matte tin plating - distinct from "HE3" (RoHS-compliant but not halogen-free) and aligned with automotive environmental requirements.
What is the standoff voltage (VWM) and why is it critical for selecting the P6SMB250AHM3_A/H?
The P6SMB250AHM3_A/H has a standoff voltage (VWM) of 214 V - the maximum continuous reverse voltage it can block without entering breakdown. This parameter ensures reliable operation below surge thresholds while avoiding false triggering during normal 24 V or 48 V rail fluctuations. Selecting a VWM ≥1.1× nominal system voltage prevents premature conduction and guarantees long-term reliability in automotive and industrial power systems.
Can the P6SMB250AHM3_A/H be used in bidirectional configurations?
No, the P6SMB250AHM3_A/H is a unidirectional TVS diode, as indicated by its "A" suffix and cathode band marking. Bidirectional variants in the P6SMB series use the "CA" suffix (e.g., P6SMB250CA). Using the P6SMB250AHM3_A/H in bidirectional applications would result in forward conduction during negative transients, potentially damaging the device or failing to protect the circuit.
What is the thermal resistance (RθJA) of the P6SMB250AHM3_A/H, and how does it affect PCB layout?
The P6SMB250AHM3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value assumes minimum recommended pad layout per Vishay's mechanical drawing. To maintain safe junction temperatures under repetitive surges, designers must allocate adequate copper area and avoid excessive trace length - undersized pads increase RθJA and risk thermal runaway during high-duty-cycle events.
P6SMB250AHM3_A/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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):
- 1.74A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB250AHM3_A/H FAQ
1.How can I place an order for P6SMB250AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB250AHM3_A/H 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 P6SMB250AHM3_A/H reliable?
The price and inventory of P6SMB250AHM3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB250AHM3_A/H is usually 5 days.
3.What payment methods are accepted for P6SMB250AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB250AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB250AHM3_A/H?
P6SMB250AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB250AHM3_A/H 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 P6SMB250AHM3_A/H?
For technical support, including P6SMB250AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB250AHM3_A/H requirements.
6.How does Aetrix verify that P6SMB250AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All P6SMB250AHM3_A/H 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 P6SMB250AHM3_A/H meets industry standards.
7.What is the process for return or replacement of P6SMB250AHM3_A/H?
All P6SMB250AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB250AHM3_A/H, 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 P6SMB250AHM3_A/H part is unused and in its original packaging.
Return procedure for P6SMB250AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB250AHM3_A/H Tags
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