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Vishay General Semiconductor - Diodes Division P6SMB250A-M3/52
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- Part No.:
- P6SMB250A-M3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB250A-M3/52.pdf
- Description:
- TVS DIODE 214VWM 344VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,629
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Product details
Overview
P6SMB250A-M3/52 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), 237–263 V breakdown voltage (VBR at 1 mA), and 344 V clamping voltage (VC) at 1.74 A peak pulse current (IPPM), designed to protect power rails and signal lines in industrial power supplies and motor drive circuits.
For engineers reviewing the P6SMB250A-M3/52 datasheet, P6SMB250A-M3/52 pinout, P6SMB250A-M3/52 application, or P6SMB250A-M3/52 equivalent, this device delivers verified 600 W peak pulse power (10/1000 μs), low incremental surge resistance, and AEC-Q101 qualification readiness (via HM3_D suffix variants), supporting robust overvoltage protection in high-reliability embedded systems.
Technical Context
The P6SMB250A-M3/52 operates as a unidirectional avalanche diode with cathode-band polarity marking, leveraging glass-passivated junction technology for stable breakdown behavior and fast response to transients. Its thermal resistance (RθJA = 100 °C/W) and junction temperature limit (TJ max = 150 °C) define derating requirements above 25 °C ambient.
It complies with JEDEC J-STD-020 MSL Level 1 (peak reflow ≤ 260 °C), features matte tin-plated leads solderable per J-STD-002, and meets UL 94 V-0 flammability rating in its SMB molding compound - enabling compatibility with automated SMT assembly and high-volume industrial manufacturing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 214 V - maximum continuous reverse operating voltage before clamping begins |
| VBR (Breakdown Voltage) | 237–263 V at 1 mA - precise avalanche initiation range ensuring predictable turn-on |
| VC (Clamping Voltage) | 344 V at IPPM = 1.74 A - limits transient voltage seen by protected downstream circuitry |
| PPPM (Peak Pulse Power) | 600 W (10/1000 μs waveform) - sustains high-energy surges without failure under defined test conditions |
| ID (Reverse Leakage) | 1.0 μA at VWM - minimal standby power loss and negligible loading on source |
| TJ max | 150 °C - defines absolute upper junction temperature limit for reliability and lifetime |
| RθJA | 100 °C/W - quantifies thermal bottleneck from junction to ambient air on standard PCB pad layout |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads; cathode identified by band marking on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected line; conducts during forward surge (e.g., reverse-biased supply rail fault) |
| Cathode | Avalanche clamping terminal | Connected to higher-potential side; initiates clamping when reverse voltage exceeds VWM, shunting surge current to ground |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) on 24–48 V DC rails without derating |
| Glass passivated chip junction | Ensures stable VBR over time and temperature, with <0.11 %/°C tempco and no parameter drift in humid environments |
| MSL Level 1 moisture sensitivity | Eliminates bake-out requirement prior to reflow, reducing production cost and handling risk |
| Halogen-free, RoHS-compliant (M3 suffix) | Meets automotive and industrial environmental compliance mandates without compromising surge performance |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (<1 ns response), improving protection margin for sensitive ICs |
Applications
| Industrial Motor Drives | Telecom Power Supplies |
|---|---|
Use Scenario: Protection of IGBT gate drivers and DC bus sensing circuits against switching-induced voltage spikes in variable-frequency drives. IC Role / Device Role / Timing Role: Unidirectional TVS placed across DC bus or gate resistor to clamp inductive kickback transients. Use Value: Limits transient voltage to ≤344 V, preventing gate oxide rupture in 600 V IGBTs and maintaining system uptime under repetitive load switching. |
Use Scenario: Input-stage surge suppression on 48 V telecom rectifier outputs exposed to lightning-induced surges on outdoor plant wiring. IC Role / Device Role / Timing Role: Primary-level TVS connected between +48 V rail and chassis ground to absorb 600 W pulses per IEC 61000-4-5. Use Value: Maintains output regulation integrity during 10/1000 μs surges up to 1.74 A, avoiding brownout or latch-up in downstream POL converters. |
| Medical Imaging Power Modules | EV Charging Station Control Boards |
Use Scenario: Overvoltage protection on isolated auxiliary power rails supplying FPGA configuration and ADC reference circuits in MRI subsystems. IC Role / Device Role / Timing Role: Standoff-rated TVS (214 V) placed post-isolation transformer to suppress coupling transients from high-voltage main inverters. Use Value: Prevents single-event latch-up in 3.3 V logic rails by clamping coupled spikes below 344 V, meeting IEC 60601-1 creepage/surge requirements. |
Use Scenario: Protection of CAN FD communication lines and microcontroller I/O in AC/DC charging control units subjected to grid-switching transients. IC Role / Device Role / Timing Role: Secondary-side TVS on 12 V control rail, coordinated with primary MOVs to distribute energy absorption across stages. Use Value: Ensures CAN physical layer remains operational after 2 kV surge events by limiting rail excursion to safe levels for ISO 11898-2 transceivers. |
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 | Same VWM (214 V), but lower PPPM (400 W); SMA package (DO-214AC), RθJA = 125 °C/W | Limited to lower-energy transients; less suitable for repeated 600 W surges or high-ambient environments | Select when board space allows larger footprint and thermal budget permits higher junction rise |
| 1.5SMC250A | Same VWM/VBR/VC specs, but SMC (DO-214AB) package; higher RθJA (110 °C/W), same 600 W rating | Requires larger PCB pad area; slightly reduced thermal margin vs. SMB's optimized leadframe | Prefer when legacy SMC footprint exists or mechanical robustness outweighs size constraints |
Compared with P6SMB250A-M3/52, SMAJ250A offers smaller footprint but sacrifices 33 % peak power handling and thermal efficiency, while 1.5SMC250A matches power capability at the cost of 15 % larger board area and tighter thermal derating - making P6SMB250A-M3/52 optimal for space-constrained, high-surge industrial designs.
Availability
P6SMB250A-M3/52 is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, medical imaging modules, and EV charging station control boards requiring stable component supply, halogen-free compliance, and repeatable surge immunity performance.
Supply support for P6SMB250A-M3/52 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, precision, and high-power handling.
The P6SMB Series belongs to Vishay's TRANSZORB® TVS platform, engineered specifically for robust, standardized transient suppression in industrial, automotive, and telecom infrastructure where consistent clamping and long-term stability are critical.
FAQ
What is the clamping voltage of the P6SMB250A-M3/52 under maximum rated surge current?
The P6SMB250A-M3/52 has a maximum clamping voltage (VC) of 344 V when subjected to its rated peak pulse current (IPPM) of 1.74 A using the standard 10/1000 μs waveform. This value is measured per Figure 1 in Vishay Document 88370 and defines the upper voltage limit imposed on protected circuitry during surge events - a key parameter for ensuring downstream ICs remain within absolute maximum ratings.
Is the P6SMB250A-M3/52 suitable for automotive applications?
The base P6SMB250A-M3/52 is commercial-grade and not AEC-Q101 qualified; however, Vishay offers the P6SMB250AHM3_D variant (with HM3_D suffix) that is fully AEC-Q101 qualified for automotive use. The P6SMB250A-M3/52 itself shares identical electrical characteristics and SMB package but lacks the extended reliability testing required for under-hood deployment.
What does the "M3" suffix indicate in P6SMB250A-M3/52?
The "M3" suffix in P6SMB250A-M3/52 denotes halogen-free, RoHS-compliant construction with matte tin-plated leads meeting JESD 201 Class 2 whisker resistance. It also confirms compliance with JEDEC J-STD-020 MSL Level 1, allowing direct placement into reflow ovens without pre-baking - distinguishing it from E3 (standard RoHS) and HM3 (AEC-Q101 + halogen-free) variants.
How does the thermal resistance of the P6SMB250A-M3/52 affect its power derating?
The P6SMB250A-M3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W on standard 0.2" × 0.2" copper pads. At 75 °C ambient, its 5.0 W steady-state power dissipation must be derated to ~2.5 W to maintain TJ ≤ 150 °C - meaning sustained leakage or frequent surges require careful thermal design or coordination with upstream fusing to avoid thermal runaway.
Can the P6SMB250A-M3/52 be used in bidirectional configurations?
No - the P6SMB250A-M3/52 is strictly unidirectional, as indicated by its "A" suffix and cathode band marking. Bidirectional operation requires the "CA" suffix (e.g., P6SMB250CA), which internally connects two opposing diodes. Using P6SMB250A-M3/52 in reverse-biased AC applications would result in forward conduction and catastrophic failure during negative half-cycles.
P6SMB250A-M3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Cut Tape (CT)
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
P6SMB250A-M3/52 FAQ
1.How can I place an order for P6SMB250A-M3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB250A-M3/52 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 P6SMB250A-M3/52 reliable?
The price and inventory of P6SMB250A-M3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB250A-M3/52 is usually 5 days.
3.What payment methods are accepted for P6SMB250A-M3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB250A-M3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB250A-M3/52?
P6SMB250A-M3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB250A-M3/52 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 P6SMB250A-M3/52?
For technical support, including P6SMB250A-M3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB250A-M3/52 requirements.
6.How does Aetrix verify that P6SMB250A-M3/52 is sourced from the original manufacturer or authorized distributors?
All P6SMB250A-M3/52 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 P6SMB250A-M3/52 meets industry standards.
7.What is the process for return or replacement of P6SMB250A-M3/52?
All P6SMB250A-M3/52 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB250A-M3/52, 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 P6SMB250A-M3/52 part is unused and in its original packaging.
Return procedure for P6SMB250A-M3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB250A-M3/52 Tags
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