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Vishay General Semiconductor - Diodes Division P6SMB250AHM3_D/I
- Part No.:
- P6SMB250AHM3_D/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB250AHM3_D/I.pdf
- Description:
- 600W,250V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:2,806
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Product details
Overview
P6SMB250AHM3_D/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) 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 600 W peak pulse power protection for high-voltage DC rails in automotive power systems and industrial motor drives.
For engineers reviewing the P6SMB250AHM3_D/I datasheet, P6SMB250AHM3_D/I pinout, P6SMB250AHM3_D/I application, or P6SMB250AHM3_D/I equivalent, key selection criteria include clamping voltage (VC = 344 V), AEC-Q101 qualification status, halogen-free RoHS compliance, thermal resistance (RθJA = 100 °C/W), and mounting pad layout requirements per JESD22-B102.
Technical Context
This device operates as a unidirectional clamping TVS diode with glass-passivated junction and low incremental surge resistance. Its 250 V stand-off rating targets overvoltage transients on 200–240 VDC bus lines, while its 344 V clamping voltage at 344 A ensures safe voltage limiting during lightning or inductive switching events.
The P6SMB250AHM3_D/I uses an SMB (DO-214AA) package with matte tin-plated leads, meets MSL Level 1 per J-STD-020, and supports reflow up to 260 °C peak. It is qualified to AEC-Q101 and specified for operation from −65 °C to +150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 250 V - Maximum continuous reverse operating voltage before clamping begins; defines maximum DC bus voltage it can protect without leakage. |
| VBR (Breakdown Voltage) | 237–263 V at 1 mA - Voltage at which device enters avalanche conduction; ensures reliable triggering above nominal system voltage. |
| VC (Clamping Voltage) | 344 V at IPPM = 344 A - Maximum voltage seen across protected circuit during 10/1000 µs transient; determines downstream component voltage stress. |
| PPPM (Peak Pulse Power) | 600 W - Sustained energy-handling capability under standardized surge waveform; validates robustness against IEC 61000-4-5 Level 4 surges. |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance on standard 0.2" × 0.2" copper pads; informs PCB thermal design for sustained power dissipation. |
| TJ max. | +150 °C - Maximum allowable junction temperature; enables use in under-hood automotive environments and sealed industrial enclosures. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, unidirectional polarity marked by cathode band. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H). Mounting requires 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal per Vishay specification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or low-potential reference; forms return path during transient clamping event. |
| Cathode | High-side connection point | Connected to protected line (e.g., 250 VDC rail); carries full surge current into anode during clamping. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity, and mechanical shock per JESD22 standards. |
| Halogen-free & RoHS-compliant | Meets EU RoHS Directive 2011/65/EU and IEC 61249-2-21; eliminates brominated flame retardants and antimony trioxide. |
| 600 W peak pulse power | Handles repetitive 10/1000 µs transients at 0.01% duty cycle-sufficient for ISO 7637-2 Pulse 5a/b and IEC 61000-4-5 Combination Wave testing. |
| Low clamping ratio (VC/VBR ≈ 1.30) | Minimizes overvoltage overshoot during fast transients; improves margin for downstream 350 V-rated MOSFETs or capacitors. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking; simplifies SMT assembly and reduces production risk. |
Applications
| Automotive Power Distribution | Industrial Motor Drive DC Bus |
|---|---|
Use Scenario: Protection of 24 V and 48 V auxiliary power modules and 200–250 V DC link inputs against load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed directly across input terminals to shunt surge energy to ground. Use Value: Withstands 344 A peak current and clamps to 344 V, preventing damage to upstream DC/DC controllers and downstream gate drivers. |
Use Scenario: Overvoltage suppression on the DC bus of variable-frequency drives handling 3-phase rectified input up to 250 VDC. IC Role / Device Role / Timing Role: Standoff-rated transient suppressor mounted between bus+ and bus−, activated within <1 ps of overvoltage onset. Use Value: Enables compliance with IEC 61800-3 immunity requirements by limiting bus voltage excursion during IGBT switching faults or regenerative braking spikes. |
| Telecom Power Feeds | Renewable Energy Inverter Inputs |
Use Scenario: Surge protection on −48 V or +250 V telecom rectifier outputs feeding base station RF amplifiers and backhaul interfaces. IC Role / Device Role / Timing Role: Primary front-end clamping device on power entry board, coordinated with upstream MOVs and downstream LC filters. Use Value: Low leakage (<1 µA at 250 V) preserves system efficiency; 150 °C TJ rating supports operation in sealed outdoor cabinets. |
Use Scenario: Input-stage transient suppression for string inverters accepting 250–400 VDC photovoltaic array inputs subject to lightning-induced surges. IC Role / Device Role / Timing Role: Unidirectional TVS placed across PV+ and PV− terminals to clamp common-mode transients before MPPT controller input stage. Use Value: 600 W rating and 344 V clamping enable coordination with Type II SPDs; halogen-free construction meets UL 1741 SB fire safety mandates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ250A-E3/5B | Same VWM (250 V), lower PPPM (400 W), higher VC (356 V), non-AEC-Q101, commercial-grade only. | Lacks automotive qualification and halogen-free certification; suitable for cost-sensitive industrial but not automotive designs. | Select when AEC-Q101 and halogen-free compliance are not required and board space allows SMA package. |
| 1.5SMC250AHE3_A/H | Same VWM (250 V), same PPPM (600 W), identical AEC-Q101 and halogen-free specs, but larger SMC (DO-214AB) package (7.11 mm × 6.22 mm). | Requires larger PCB footprint and higher thermal mass; better suited for higher average power dissipation scenarios. | Choose when higher thermal derating margin is needed and board layout accommodates SMC footprint. |
Compared with SMAJ250A-E3/5B, P6SMB250AHM3_D/I offers superior automotive qualification and tighter clamping; versus 1.5SMC250AHE3_A/H, it provides identical protection in a 30% smaller SMB footprint-critical for dense power module layouts.
Availability
P6SMB250AHM3_D/I is available at Aetrix Electronics and suitable for automotive power distribution, industrial motor drive DC bus protection, and renewable energy inverter inputs requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for P6SMB250AHM3_D/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, precision, and automotive-grade validation.
The P6SMB Series is designed for high-energy transient suppression in harsh environments-targeting automotive, industrial, and telecom applications where AEC-Q101 qualification, low clamping ratio, and surface-mount scalability are essential.
FAQ
What is the clamping voltage of the P6SMB250AHM3_D/I at its rated peak pulse current?
The P6SMB250AHM3_D/I has a maximum clamping voltage (VC) of 344 V at its peak pulse current (IPPM) of 344 A, measured under the standard 10/1000 µs waveform. This value is confirmed in Vishay's datasheet Document Number 88370, page 2, Electrical Characteristics table for P6SMB250A. The clamping performance ensures downstream components see no more than 344 V during surge events, supporting robust system-level immunity design.
Is the P6SMB250AHM3_D/I qualified for automotive applications?
Yes, the P6SMB250AHM3_D/I is AEC-Q101 qualified, as indicated by the "HM3" suffix and confirmed in the Ordering Information table (page 3) and Notes section (page 2) of Vishay's P6SMB datasheet. It meets stress test requirements for temperature cycling, humidity, mechanical shock, and solderability per JESD22 standards-making it suitable for under-hood and chassis-mounted automotive power systems.
What does the "D/I" suffix mean in P6SMB250AHM3_D/I?
The "D" in P6SMB250AHM3_D/I denotes AEC-Q101 qualification for the 250 V to 540 V voltage range, while "I" specifies packaging in 13-inch diameter plastic tape and reel with 3200 units per reel. This ordering code is explicitly listed in the Ordering Information table (page 3) of Vishay Document Number 88370, confirming both qualification and delivery format.
What is the thermal resistance of the P6SMB250AHM3_D/I, and how does it affect PCB layout?
The P6SMB250AHM3_D/I 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 minimal copper area; increasing pad size or adding internal ground planes reduces RθJA. Layout must follow Vishay's recommended mounting pad dimensions (page 5) to ensure thermal performance and avoid derating penalties during repetitive surge events.
How does the P6SMB250AHM3_D/I compare to bidirectional TVS diodes in the same series?
The P6SMB250AHM3_D/I is unidirectional and intended for DC line protection with defined polarity; bidirectional variants (e.g., P6SMB250CA) are used for AC or floating signal lines. Unlike bidirectional types, P6SMB250AHM3_D/I exhibits forward conduction below ~0.7 V and blocks in reverse up to 250 V-enabling precise placement on positive-rail or negative-rail protection paths without ambiguity in conduction direction.
P6SMB250AHM3_D/I 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:
- 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):
- 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_D/I FAQ
1.How can I place an order for P6SMB250AHM3_D/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB250AHM3_D/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 P6SMB250AHM3_D/I reliable?
The price and inventory of P6SMB250AHM3_D/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB250AHM3_D/I is usually 5 days.
3.What payment methods are accepted for P6SMB250AHM3_D/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB250AHM3_D/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB250AHM3_D/I?
P6SMB250AHM3_D/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB250AHM3_D/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 P6SMB250AHM3_D/I?
For technical support, including P6SMB250AHM3_D/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB250AHM3_D/I requirements.
6.How does Aetrix verify that P6SMB250AHM3_D/I is sourced from the original manufacturer or authorized distributors?
All P6SMB250AHM3_D/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 P6SMB250AHM3_D/I meets industry standards.
7.What is the process for return or replacement of P6SMB250AHM3_D/I?
All P6SMB250AHM3_D/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB250AHM3_D/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 P6SMB250AHM3_D/I part is unused and in its original packaging.
Return procedure for P6SMB250AHM3_D/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB250AHM3_D/I Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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Diodes Incorporated
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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