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Vishay General Semiconductor - Diodes Division SMB10J7.0AHM3/H
- Part No.:
- SMB10J7.0AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J7.0AHM3/H.pdf
- Description:
- TVS DIODE 7VWM 12VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,192
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Product details
Overview
SMB10J7.0AHM3/H from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for high-energy surge protection on DC power rails and signal lines. It features a 7.0 V stand-off voltage (VWM), 12.0 V clamping voltage (VC) at 83.3 A peak pulse current (IPPM), and 1000 W peak pulse power (PPPM) with 10/1000 µs waveform - optimized for automotive-grade ESD and load-dump protection in engine control units and body electronics.
For engineers reviewing the SMB10J7.0AHM3/H datasheet, SMB10J7.0AHM3/H pinout, SMB10J7.0AHM3/H application, or SMB10J7.0AHM3/H equivalent, key selection criteria include AEC-Q101 qualification, unidirectional polarity with cathode band marking, low incremental surge resistance, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a clamping device that remains non-conductive below its 7.0 V stand-off voltage and rapidly transitions to low-impedance conduction above its 7.78–8.60 V breakdown range (VBR at 10 mA). Its glass-passivated junction ensures stable leakage performance (<1000 µA at VWM) and robustness against humidity and thermal cycling.
The SMB10J7.0AHM3/H delivers 1000 W surge handling per IEC 61000-4-5 (10/1000 µs) with a clamping ratio of 1.71 (VC/VWM), enabling effective protection of downstream MOSFETs and microcontrollers without excessive voltage overshoot. Thermal resistance is 72 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead), supporting reliable operation up to +150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.0 V - maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 7.78 V / 8.60 V at 10 mA - guaranteed breakdown threshold for reliable turn-on timing |
| VC @ IPPM | 12.0 V at 83.3 A - clamped voltage during full-rated 1000 W surge, limiting stress on protected ICs |
| PPPM | 1000 W (10/1000 µs) - surge energy handling capacity compliant with ISO 7637-2 and IEC 61000-4-5 |
| IFSM | 100 A (8.3 ms half-sine) - withstands repetitive inrush or fault currents without degradation |
| TJ max | +150 °C - supports under-hood automotive environments and industrial enclosures |
| AEC-Q101 | Qualified - validated for automotive reliability including temperature cycling, HTRB, and ESD |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, RoHS-compliant, matte tin-plated leads. Molding compound meets UL 94 V-0. Polarity indicated by cathode band on one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry (unidirectional) | Connected to lower-potential side of protected line; enables conduction only when cathode is >7.0 V above anode |
| Cathode | Clamping node / surge return path | Marked with color band; ties to system ground or rail reference to shunt transients away from sensitive circuitry |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive use including temperature cycling, HTRB, and ESD testing per JESD22 standards |
| Glass passivated junction | Ensures stable leakage current (<1000 µA at VWM) and long-term reliability in humid or thermally stressed environments |
| Low profile SMB package | Enables high-density PCB layouts and compatibility with standard SMT pick-and-place equipment (MSL level 1, 260 °C peak) |
| 1000 W peak pulse power | Provides robust protection against ISO 7637-2 Pulse 5a (load dump) and IEC 61000-4-5 surges without derating at TA ≤ 25 °C |
| Matte tin plated leads | Guarantees solderability per J-STD-002 and JESD 22-B102, with whisker resistance per JESD 201 Class 2 |
Applications
| Automotive Engine Control Unit (ECU) | Industrial PLC Digital Input Module |
|---|---|
Use Scenario: Protecting 5 V/12 V sensor supply rails and CAN transceiver power pins from alternator load dump and inductive switching spikes. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between power rail and chassis ground to limit transient overvoltage to <12.0 V. Use Value: Prevents latch-up or permanent damage to MCU I/O and transceivers during 1000 W, 10/1000 µs surges per ISO 7637-2. | Use Scenario: Safeguarding 24 V digital input circuits from field-wiring induced transients caused by relay coil de-energization. IC Role / Device Role / Timing Role: Standoff-clamp TVS connected across input terminals to absorb 83.3 A surge current within 100 ns response time. Use Value: Maintains functional safety integrity by holding clamp voltage at 12.0 V, well below the 30 V absolute maximum rating of input buffer ICs. |
| Consumer Appliance Motor Drive Board | Telecom Power Supply Front-End |
Use Scenario: Shielding microcontroller GPIOs and gate drivers from back-EMF generated by brushed DC motor commutation. IC Role / Device Role / Timing Role: Fast-response unidirectional TVS placed at motor driver output stage to clamp flyback voltage spikes. Use Value: Enables reliable operation at 100 A surge current (IFSM) without degradation, extending board lifetime in high-cycle appliances. | Use Scenario: Secondary-side overvoltage suppression on 48 V telecom rectifier outputs exposed to lightning-induced surges. IC Role / Device Role / Timing Role: High-power TVS mounted directly at connector interface to divert surge energy before reaching DC-DC converters. Use Value: Delivers 1000 W clamping capability with 72 °C/W thermal resistance, minimizing localized heating during repeated surge 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 |
|---|---|---|---|
| SMBJ7.0AHE3/A | Same VWM (7.0 V), VBR (7.78–8.60 V), VC (12.0 V), and PPPM (1000 W); differs only in packaging suffix (E3 vs HM3) and revision code | Commercial-grade variant without AEC-Q101 qualification; suitable for non-automotive industrial use | Select when AEC-Q101 is not required and cost optimization is prioritized |
| 1.5SMC7.0A | Higher package thermal resistance (RθJA = 11 °C/W vs 72 °C/W), larger SMC (DO-214AB) footprint, same electrical specs | Requires more PCB area and offers inferior thermal dissipation in confined spaces | Choose only if legacy SMC footprint compatibility is mandatory and layout space permits |
Compared with SMBJ7.0AHE3/A and 1.5SMC7.0A, SMB10J7.0AHM3/H uniquely combines AEC-Q101 qualification, halogen-free construction, and SMB package thermal performance - making it the optimal choice for space-constrained, automotive-qualified designs requiring traceable sourcing and long-term supply stability.
Availability
SMB10J7.0AHM3/H is available at Aetrix Electronics and suitable for automotive ECU protection, industrial PLC input conditioning, and telecom power front-end surge suppression requiring stable component supply across multi-year production cycles.
Supply support for SMB10J7.0AHM3/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, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific validation.
The SMB10J series targets high-reliability transient suppression in harsh environments, with design focus on automotive AEC-Q101 compliance, low clamping ratio, and compatibility with automated manufacturing processes.
FAQ
What is the clamping voltage of SMB10J7.0AHM3/H at its rated peak pulse current?
The SMB10J7.0AHM3/H has a maximum clamping voltage (VC) of 12.0 V at its rated peak pulse current (IPPM) of 83.3 A, measured under the standard 10/1000 µs waveform. This value ensures protected downstream components experience no more than 12.0 V during full-rated surge events - critical for safeguarding 5 V and 12 V logic interfaces. The SMB10J7.0AHM3/H maintains this clamping performance across its full operating temperature range.
Is SMB10J7.0AHM3/H qualified for automotive applications?
Yes, SMB10J7.0AHM3/H is AEC-Q101 qualified, as confirmed by Vishay's official documentation and ordering code suffix "HM3" (halogen-free, RoHS-compliant, and AEC-Q101 qualified). It undergoes rigorous stress testing including temperature cycling, high-temperature reverse bias (HTRB), and ESD per JESD22 standards - making SMB10J7.0AHM3/H suitable for engine control units, body control modules, and ADAS power domains.
What does the "HM3" suffix indicate in SMB10J7.0AHM3/H?
The "HM3" suffix in SMB10J7.0AHM3/H denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It distinguishes this variant from commercial-grade versions (e.g., E3/M3) and confirms compliance with automotive reliability requirements and environmental regulations. The "H" indicates AEC-Q101 qualification, while "M3" specifies halogen-free molding compound - both verified in Vishay Document Number 88422.
Can SMB10J7.0AHM3/H be used in bidirectional configurations?
No, SMB10J7.0AHM3/H is a unidirectional TVS diode, as indicated by its part number structure (no "C" suffix) and electrical specifications limited to VBR, VC, and IPPM in the unidirectional column of the datasheet. For bidirectional protection, Vishay offers the SMB8J7.0CA series - which is functionally distinct and not interchangeable with SMB10J7.0AHM3/H without circuit redesign.
What is the thermal resistance of SMB10J7.0AHM3/H, and how does it affect PCB layout?
SMB10J7.0AHM3/H has a typical junction-to-ambient thermal resistance (RθJA) of 72 °C/W and junction-to-lead (RθJL) of 20 °C/W. To achieve rated 1000 W surge capability, the datasheet specifies mounting on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. Reducing pad size increases thermal impedance and requires derating - so proper SMB10J7.0AHM3/H layout must follow Vishay's recommended footprint to avoid thermal runaway during repeated surges.
SMB10J7.0AHM3/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 7V
- Voltage - Breakdown (Min):
- 7.78V
- Voltage - Clamping (Max) @ Ipp:
- 12V
- Current - Peak Pulse (10/1000µs):
- 83.3A
- Power - Peak Pulse:
- 1000W (1kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMB10J7.0AHM3/H FAQ
1.How can I place an order for SMB10J7.0AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J7.0AHM3/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 SMB10J7.0AHM3/H reliable?
The price and inventory of SMB10J7.0AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J7.0AHM3/H is usually 5 days.
3.What payment methods are accepted for SMB10J7.0AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J7.0AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J7.0AHM3/H?
SMB10J7.0AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J7.0AHM3/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 SMB10J7.0AHM3/H?
For technical support, including SMB10J7.0AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J7.0AHM3/H requirements.
6.How does Aetrix verify that SMB10J7.0AHM3/H is sourced from the original manufacturer or authorized distributors?
All SMB10J7.0AHM3/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 SMB10J7.0AHM3/H meets industry standards.
7.What is the process for return or replacement of SMB10J7.0AHM3/H?
All SMB10J7.0AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J7.0AHM3/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 SMB10J7.0AHM3/H part is unused and in its original packaging.
Return procedure for SMB10J7.0AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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