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Vishay General Semiconductor - Diodes Division P6SMB12AHM3/I
- Part No.:
- P6SMB12AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB12AHM3/I.pdf
- Description:
- TVS DIODE 10.2VWM 16.7VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,289
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Product details
Overview
P6SMB12AHM3/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, rated for 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 with 10/1000 μs waveform. It protects MOSFETs, ICs, and sensor signal lines against inductive switching transients and ESD in automotive and industrial power electronics.
For engineers reviewing the P6SMB12AHM3/I datasheet, P6SMB12AHM3/I pinout, P6SMB12AHM3/I application, or P6SMB12AHM3/I equivalent, this part delivers AEC-Q101 qualification (HM3 suffix), halogen-free RoHS compliance, MSL Level 1 moisture sensitivity, and verified clamping performance under repetitive surge conditions - critical for automotive-grade board-level transient protection design.
Technical Context
The P6SMB12AHM3/I operates as a unidirectional avalanche diode, conducting only when reverse voltage exceeds its breakdown threshold to clamp transient energy into the PCB ground plane. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low incremental surge resistance, enabling consistent clamping across temperature (TJ = –65 °C to +150 °C).
Designed for automated SMT placement on standard 0.2" × 0.2" copper pads, it achieves 600 W peak pulse power dissipation with 0.01% duty cycle and exhibits fast response time (<1 ns) and low leakage (≤5.0 μA at VWM = 10.2 V), making it suitable for high-reliability DC power rail and signal-line protection where minimal standby current is required.
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 window for predictable clamping start point |
| VWM | 10.2 V - maximum continuous reverse operating voltage before leakage exceeds 5.0 μA |
| VC at IPPM | 16.7 V at 35.9 A - clamping voltage under 10/1000 μs surge, limiting downstream device stress |
| PPPM | 600 W - peak transient power handling capability with standardized waveform, validated per JEDEC standards |
| IFSM | 100 A - non-repetitive forward surge rating (8.3 ms half-sine), supports inrush current immunity in power circuits |
| TJ max. | +150 °C - maximum junction temperature, enabling operation in under-hood automotive environments |
| Package | SMB (DO-214AA) - industry-standard surface-mount outline with 2.2 mm height and 3.94 mm length, compatible with IPC-7351B land patterns |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads, UL 94 V-0 rated, MSL Level 1 (260 °C reflow peak), cathode indicated by band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to system ground or low-side return path during transient clamping |
| Cathode | Reverse-biased clamping terminal | Connected to protected line (e.g., 12 V rail or sensor input); band-marked end |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive applications including engine control units and body electronics with full stress testing |
| 600 W peak pulse power (10/1000 μs) | Withstands repeated load-dump and ISO 7637-2 Pulse 5a transients without degradation |
| Glass-passivated junction | Ensures long-term VBR stability and low parameter drift over thermal cycling and humidity exposure |
| Halogen-free & RoHS-compliant | Meets automotive ELV Directive and IPC-1752A material declaration requirements |
| Low IR (≤5.0 μA at VWM) | Minimizes standby power loss in always-on vehicle modules such as CAN nodes and telematics units |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump transients up to 35 V and ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to shunt surge current away from LDOs and microcontrollers. Use Value: Clamps peak voltage to ≤16.7 V at 35.9 A, preventing latch-up or permanent damage to 16 V-rated downstream ICs. |
Use Scenario: Safeguarding analog outputs of pressure/temperature sensors in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: TVS mounted at connector entry point to absorb ESD (IEC 61000-4-2 ±8 kV contact) and inductive kickback from solenoid drivers. Use Value: Sub-1 ns response time limits transient propagation into precision ADC front-ends, preserving measurement integrity. |
| Telecom DC Power Input Protection | Consumer Device USB Port Protection |
Use Scenario: Securing 12 V/24 V DC inputs of PoE-powered network switches and base station radios. IC Role / Device Role / Timing Role: Primary overvoltage clamp on bulk power entry, coordinated with upstream fuses and secondary filtering. Use Value: 600 W rating handles sustained surges from lightning-induced coupling on outdoor cabling without thermal runaway. |
Use Scenario: Adding robustness to USB-C VBUS lines in portable medical monitors and smart home hubs. IC Role / Device Role / Timing Role: Secondary protection stage after polymer PTC, clamping fast-rising ESD events before they reach USB controller ICs. Use Value: 10.2 V VWM allows safe operation across full USB 2.0/3.2 VBUS range (4.75–5.5 V) with margin for ripple and tolerance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ12AHE3/A | Same VBR range (11.4–12.6 V) but lower PPPM (400 W), SMA package (smaller footprint, higher RθJA) | Limited to lower-energy transients; unsuitable for automotive load dump per ISO 7637-2 | Select when space-constrained PCBs require smaller footprint and surge energy is <400 W |
| 1.5SMC12A | Same electrical specs but SMC (DO-214AB) package - 2.6 mm height, 7.1 mm length, higher thermal mass | Better thermal dissipation for high-duty-cycle surge environments; not AEC-Q101 qualified | Choose for industrial power supplies needing enhanced thermal robustness without automotive certification |
Compared with SMAJ12AHE3/A and 1.5SMC12A, the P6SMB12AHM3/I uniquely combines AEC-Q101 qualification, 600 W surge rating, and SMB footprint - making it the optimal choice for space-limited automotive modules requiring certified reliability and high-energy clamping.
Availability
P6SMB12AHM3/I is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom DC power inputs requiring stable component supply, traceable sourcing, and lifecycle continuity.
Supply support for P6SMB12AHM3/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, automotive qualification, and high-volume manufacturability.
The P6SMB Series targets board-level transient protection in harsh environments, delivering standardized 600 W surge capability in compact SMB packages with AEC-Q101 variants for automotive electronics.
FAQ
What is the clamping voltage of the P6SMB12AHM3/I under a 10/1000 μs surge?
The P6SMB12AHM3/I has a maximum clamping voltage (VC) of 16.7 V at 35.9 A peak pulse current under the standardized 10/1000 μs waveform. This value is measured per JEDEC test conditions and reflects the actual voltage seen by protected circuitry during worst-case transient events, ensuring compatibility with 16 V-rated components downstream.
Is the P6SMB12AHM3/I AEC-Q101 qualified?
Yes, the P6SMB12AHM3/I is AEC-Q101 qualified - confirmed by the "HM3" suffix, which denotes halogen-free, RoHS-compliant construction with full automotive stress testing including temperature cycling, HTRB, and surge endurance. This qualification makes the P6SMB12AHM3/I suitable for under-hood and chassis-mounted automotive applications.
What does the "I" in P6SMB12AHM3/I indicate?
The "I" in P6SMB12AHM3/I specifies the packaging format: 13-inch diameter plastic tape and reel, containing 3200 units per reel. This differs from the "H" variant (7-inch reel, 750 units), and both share identical electrical and mechanical specifications - only the delivery mode and quantity differ.
Can the P6SMB12AHM3/I be used in bidirectional configurations?
No, the P6SMB12AHM3/I is a unidirectional TVS diode, as indicated by the "A" suffix (not "CA"). It conducts only in reverse bias above VBR; for bidirectional protection, Vishay offers the P6SMB12CAHM3/I variant. Using the unidirectional P6SMB12AHM3/I on AC or floating signal lines risks forward conduction and failure.
What is the maximum operating temperature for the P6SMB12AHM3/I?
The P6SMB12AHM3/I has a maximum junction temperature (TJ) of +150 °C and an operating ambient range of –65 °C to +150 °C. Its thermal resistance (RθJA) is 100 °C/W under standard mounting conditions, meaning proper PCB copper pad layout (0.2" × 0.2") is essential to maintain reliability at elevated ambient temperatures.
P6SMB12AHM3/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:
- Discontinued at Digi-Key
- 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:
- 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)
P6SMB12AHM3/I FAQ
1.How can I place an order for P6SMB12AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB12AHM3/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 P6SMB12AHM3/I reliable?
The price and inventory of P6SMB12AHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB12AHM3/I is usually 5 days.
3.What payment methods are accepted for P6SMB12AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB12AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB12AHM3/I?
P6SMB12AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB12AHM3/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 P6SMB12AHM3/I?
For technical support, including P6SMB12AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB12AHM3/I requirements.
6.How does Aetrix verify that P6SMB12AHM3/I is sourced from the original manufacturer or authorized distributors?
All P6SMB12AHM3/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 P6SMB12AHM3/I meets industry standards.
7.What is the process for return or replacement of P6SMB12AHM3/I?
All P6SMB12AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB12AHM3/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 P6SMB12AHM3/I part is unused and in its original packaging.
Return procedure for P6SMB12AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB12AHM3/I Tags
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