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Vishay General Semiconductor - Diodes Division P6SMB12A-M3/52
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- Part No.:
- P6SMB12A-M3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB12A-M3/52.pdf
- Description:
- TVS DIODE 10.2VWM 16.7VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,213
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Product details
Overview
P6SMB12A-M3/52 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, featuring 12 V breakdown voltage (VBR = 11.4–12.6 V at IT = 1.0 mA), 16.7 V maximum clamping voltage (VC) at 35.9 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - deployed for overvoltage protection of MOSFETs, ICs, and sensor signal lines in industrial and automotive electronics.
For engineers reviewing the P6SMB12A-M3/52 datasheet, P6SMB12A-M3/52 pinout, P6SMB12A-M3/52 application, or P6SMB12A-M3/52 equivalent, key selection criteria include unidirectional polarity, 10.2 V stand-off voltage (VWM), 5.0 µA max reverse leakage at VWM, 150 °C max junction temperature, and halogen-free RoHS-compliant M3 suffix construction suitable for automated SMT assembly.
Technical Context
This TVS diode operates as a clamping-type transient protector: under normal bias it presents high impedance (>100 MΩ at 10.2 V), then rapidly avalanches below 16.7 V to shunt surge energy away from downstream circuitry. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low incremental surge resistance, enabling consistent clamping performance across repetitive transients.
Designed for surface-mount integration on PCBs with 0.2" × 0.2" copper pads per terminal, the device meets J-STD-020 MSL Level 1 (peak reflow ≤ 260 °C) and supports 100 A non-repetitive forward surge (8.3 ms half-sine) - critical for protecting power MOSFET gates and microcontroller I/O against inductive switching spikes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 11.4 V / 12.6 V at 1.0 mA test current - defines precise avalanche onset threshold for reliable overvoltage triggering |
| VWM | 10.2 V - maximum continuous reverse operating voltage before leakage exceeds 5.0 µA |
| VC @ IPPM | 16.7 V at 35.9 A - clamping voltage during 600 W 10/1000 µs surge, limiting stress on protected ICs |
| PPPM | 600 W - peak pulse power handling capability per standard 10/1000 µs waveform (0.01% duty cycle) |
| TJ max | +150 °C - enables operation in under-hood automotive or industrial motor drive environments |
| Package | SMB (DO-214AA) - standardized 2-pin surface-mount outline with cathode band marking, compatible with JEDEC MS-012 |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads, UL 94 V-0 rated, dimensions 3.94 mm × 2.20 mm × 1.52 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Anode-side connection point for unidirectional conduction path | Connected to protected circuit's positive rail or signal line; reverse-biased during normal operation |
| Anode (non-banded end) | Cathode-side connection point for unidirectional conduction path | Typically tied to ground or low-impedance return path to complete clamping loop during transient events |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power | Handles high-energy transients (e.g., ISO 7637-2 Pulse 1/2a/5a) without degradation in SMB footprint |
| Glass passivated junction | Ensures long-term VBR stability and low parameter drift across temperature and lifetime |
| Halogen-free & RoHS-compliant (M3) | Meets environmental compliance requirements for automotive and industrial end equipment |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking, reducing manufacturing overhead |
Applications
| Automotive Power Distribution | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V power rails feeding ECUs, body control modules, and lighting drivers from load dump and inductive kickback. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery input and DC-DC converter input stage. Use Value: Clamps surges up to 16.7 V while sustaining 600 W pulses, preventing latch-up or gate oxide damage in downstream regulators. | Use Scenario: Shielding analog and digital signal lines (e.g., CAN, LIN, or I²C) connecting temperature/pressure sensors to MCU inputs. IC Role / Device Role / Timing Role: Low-capacitance (<100 pF typical) TVS mounted directly at connector entry point. Use Value: Limits ESD (IEC 61000-4-2 ±15 kV air) and fast transients (IEC 61000-4-4 ±2 kV) without distorting signal integrity. |
| Consumer Power Adapter Input Stage | MOSFET Gate Protection in Motor Drives |
Use Scenario: Safeguarding AC-DC adapter primary-side rectifier outputs and secondary-side 12 V auxiliary rails against lightning-induced surges. IC Role / Device Role / Timing Role: Standoff-rated TVS placed across bulk capacitor terminals to absorb line-to-line transients. Use Value: Withstands 10.2 V continuous reverse bias and clamps 10/1000 µs surges within 16.7 V, preserving capacitor and controller reliability. | Use Scenario: Preventing gate oxide rupture in N-channel power MOSFETs driven by PWM controllers in BLDC or stepper motor inverters. IC Role / Device Role / Timing Role: TVS connected between gate and source to clamp Miller-induced voltage spikes during high dV/dt switching. Use Value: Fast response time and low clamping voltage (16.7 V) ensure gate voltage stays within safe limits (±20 V) even during 100 A inductive turn-off events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ12A-E3/52 | Same SMB package, identical VBR (11.4–12.6 V), but lower PPPM = 400 W and higher VC = 19.9 V at 20.1 A | Less robust for high-energy transients (e.g., ISO 7637-2 Pulse 5a); suitable only where surge energy is limited | Select when cost sensitivity outweighs peak power margin, and system-level testing confirms 400 W sufficiency |
| 1.5SMC12A | Higher-power 1500 W variant in larger SMC (DO-214AB) package; same VBR range but 17.0 V VC at 88.2 A | Requires PCB layout change due to larger footprint; used where sustained surge repetition or higher IPPM is required | Choose when thermal derating or multi-pulse endurance exceeds P6SMB12A-M3/52 capability |
Compared with SMAJ12A-E3/52 and 1.5SMC12A, P6SMB12A-M3/52 delivers optimal balance of 600 W surge capacity, SMB footprint compatibility, and 16.7 V clamping - making it preferred for space-constrained 12 V systems needing certified automotive-grade robustness without board redesign.
Availability
P6SMB12A-M3/52 is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interface protection, consumer power adapter input stages, and MOSFET gate protection requiring stable component supply and halogen-free compliance.
Supply support for P6SMB12A-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, rectifiers, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific optimization.
The P6SMB Series was developed for high-reliability transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where compact size, repeatable clamping, and AEC-Q101 qualification (via HM3 variants) are essential design requirements.
FAQ
What is the breakdown voltage tolerance for P6SMB12A-M3/52?
The P6SMB12A-M3/52 has a specified breakdown voltage (VBR) range of 11.4 V to 12.6 V at 1.0 mA test current, representing a ±5% tolerance around the nominal 12 V rating. This tight tolerance ensures predictable and repeatable clamping behavior across production lots and temperature ranges, critical for protecting sensitive 12 V logic and power circuits. The value is measured per ANSI/IEEE C62.35 standards and confirmed in Vishay's official datasheet revision 09-Jan-2024.
Is P6SMB12A-M3/52 suitable for automotive applications?
Yes, P6SMB12A-M3/52 is halogen-free and RoHS-compliant, and its base P6SMB12A family is AEC-Q101 qualified when ordered with HE3 or HM3 suffixes (e.g., P6SMB12AHM3_B/H). While the M3/52 variant itself is commercial-grade, its electrical specs - including 150 °C TJ max, 600 W surge rating, and MSL Level 1 - align with automotive subsystem requirements. For full qualification, specify the HM3_B or HM3_I variant per Vishay's ordering table.
What is the maximum clamping voltage of P6SMB12A-M3/52 under surge conditions?
The maximum clamping voltage (VC) of P6SMB12A-M3/52 is 16.7 V at a peak pulse current (IPPM) of 35.9 A, tested with the standard 10/1000 µs waveform. This value represents the upper limit of voltage seen by protected circuitry during worst-case transient events, ensuring downstream components like 16 V-rated MOSFETs or 5 V LDOs remain within safe operating limits. VC is guaranteed across the full operating temperature range per datasheet Figure 4.
How does the M3 suffix affect P6SMB12A-M3/52 compared to E3?
The M3 suffix on P6SMB12A-M3/52 indicates halogen-free, RoHS-compliant construction with matte tin-plated leads meeting JESD 201 Class 2 whisker resistance, whereas E3 denotes standard RoHS compliance without halogen-free assurance. Both meet J-STD-002 solderability and MSL Level 1, but M3 is mandated for certain automotive and green-electronics programs. Electrically and thermally, P6SMB12A-M3/52 and P6SMB12A-E3/52 are identical - only material content differs.
Can P6SMB12A-M3/52 be used in bidirectional configurations?
No, P6SMB12A-M3/52 is strictly unidirectional - indicated by the "A" suffix and cathode band marking. Bidirectional variants use the "CA" suffix (e.g., P6SMB12CA). Using P6SMB12A-M3/52 in bidirectional signal paths would result in forward conduction during negative transients, causing failure. For AC-coupled or differential lines, select P6SMB12CA-M3/52 or equivalent bidirectional TVS with matched VBR symmetry.
P6SMB12A-M3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Tape & Box (TB)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 10.2V
- Voltage - Breakdown (Min):
- 11.4V
- Voltage - Clamping (Max) @ Ipp:
- 16.7V
- Current - Peak Pulse (10/1000µs):
- 35.9A
- 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)
P6SMB12A-M3/52 FAQ
1.How can I place an order for P6SMB12A-M3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB12A-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 P6SMB12A-M3/52 reliable?
The price and inventory of P6SMB12A-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 P6SMB12A-M3/52 is usually 5 days.
3.What payment methods are accepted for P6SMB12A-M3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB12A-M3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB12A-M3/52?
P6SMB12A-M3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB12A-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 P6SMB12A-M3/52?
For technical support, including P6SMB12A-M3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB12A-M3/52 requirements.
6.How does Aetrix verify that P6SMB12A-M3/52 is sourced from the original manufacturer or authorized distributors?
All P6SMB12A-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 P6SMB12A-M3/52 meets industry standards.
7.What is the process for return or replacement of P6SMB12A-M3/52?
All P6SMB12A-M3/52 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB12A-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 P6SMB12A-M3/52 part is unused and in its original packaging.
Return procedure for P6SMB12A-M3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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