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Vishay General Semiconductor - Diodes Division SMB10J7.5AHM3/I
- Part No.:
- SMB10J7.5AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J7.5AHM3/I.pdf
- Description:
- TVS DIODE 7.5VWM 12.9VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,601
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Product details
Overview
SMB10J7.5AHM3/I 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 7.5 V stand-off voltage (VWM), 8.33–9.21 V breakdown voltage (VBR) at 1.0 mA test current, 12.9 V clamping voltage (VC) at 77.5 A peak pulse current (IPPM), and 1000 W peak pulse power (PPPM) with 10/1000 µs waveform. It is AEC-Q101 qualified and halogen-free, targeting automotive power rail protection.
For engineers reviewing the SMB10J7.5AHM3/I datasheet, SMB10J7.5AHM3/I pinout, SMB10J7.5AHM3/I application, or SMB10J7.5AHM3/I equivalent, key selection criteria include clamping performance under 100 A surge, thermal resistance (RθJL = 20 °C/W), AEC-Q101 qualification status, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This TVS diode uses a glass-passivated silicon junction optimized for fast response (<1 ns) to ESD and lightning-induced transients. Its low incremental surge resistance enables stable clamping during high-current surges up to 100 A (IFSM), while maintaining low leakage (<1.0 µA at VWM) at 7.5 V operating voltage.
The device operates across -55 °C to +150 °C junction temperature range and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. Its SMB (DO-214AA) package provides 72 °C/W junction-to-ambient thermal resistance and supports high-power density board layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.5 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin for 5 V–12 V DC rails. |
| VBR min/max | 8.33 V / 9.21 V at IT = 1.0 mA - Confirmed breakdown threshold ensures reliable turn-on during overvoltage events without premature conduction. |
| VC @ IPPM | 12.9 V at 77.5 A - Clamping voltage limits downstream IC stress during 10/1000 µs surge; <5.4 V overhead above VWM enables robust system-level protection. |
| PPPM | 1000 W - Peak pulse power rating with 10/1000 µs waveform; supports IEC 61000-4-5 Level 4 (4 kV) surge immunity when properly mounted. |
| RθJL | 20 °C/W - Junction-to-lead thermal resistance enables efficient heat transfer to PCB copper pads, critical for repetitive surge handling. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC standard. |
| Package | SMB (DO-214AA) - Surface-mount outline with 0.220" × 0.130" footprint; compatible with standard SMT pick-and-place and reflow profiles. |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads, polarity indicated by cathode band. Mounting requires minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pad per terminal per Vishay recommended layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference node | Connected to ground or low-voltage return path; forms current path during reverse-biased clamping event. |
| Cathode | Protected line input | Connected to supply rail or signal line being protected; color band identifies this terminal for correct orientation. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity exposure. |
| MSL Level 1 rating | Supports lead-free reflow up to 260 °C peak without moisture-induced damage or popcorn effect. |
| Halogen-free & RoHS-compliant | Meets automotive environmental requirements (IEC 61249-2-21) and eliminates brominated flame retardants. |
| Low clamping ratio (VC/VWM) | 1.72 - High clamping efficiency minimizes voltage overshoot on protected circuits relative to operating voltage. |
| Fast response time | <1 ns - Enables suppression of ESD (IEC 61000-4-2) and fast-rising transients before sensitive components are damaged. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground to clamp positive surges above 7.5 V. Use Value: Withstands 1000 W surges and maintains 12.9 V clamping ceiling, preventing damage to MCU power supplies and CAN transceivers. | Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS connected across differential signal pair or single-ended output to ground. Use Value: Sub-1 µA leakage at 7.5 V avoids loading precision sensor signals; 12.9 V VC ensures ADC front-end remains within safe input range. |
| Consumer USB Power Input Protection | Telecom DC Feeder Line Protection |
Use Scenario: Safeguarding USB-C PD power delivery inputs in portable devices against hot-plug and adapter fault transients. IC Role / Device Role / Timing Role: Unidirectional TVS installed on VBUS line upstream of buck converter to absorb 10/1000 µs surges. Use Value: 1000 W PPPM rating handles worst-case PD fault energy; AEC-Q101 qualification supports extended field life in mobile applications. | Use Scenario: Protecting PoE-powered equipment (e.g., IP cameras) from induced surges on 48 V DC feeder lines. IC Role / Device Role / Timing Role: TVS deployed on each DC input leg to ground in redundant configuration for telecom-grade surge immunity. Use Value: 77.5 A IPPM and 20 °C/W RθJL enable sustained operation under repeated 10/1000 µs surges per IEC 61000-4-5. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.5AHE3/A | Same VWM (7.5 V), VBR (8.33–9.21 V), and PPPM (1000 W); RoHS-compliant but not halogen-free; commercial grade only (no AEC-Q101). | Lacks automotive qualification; suitable for industrial/commercial designs where AEC-Q101 is not mandated. | Select when cost sensitivity outweighs automotive compliance requirements and halogen-free materials are not required. |
| SMB10J7.5A-M3/5B | Identical electrical specs and AEC-Q101 qualification; differs only in packaging-13" tape-and-reel (3200 pcs) vs. SMB10J7.5AHM3/I's 13" tape-and-reel with I carrier code. | No functional difference; same board-level performance and reliability. | Choose based on procurement logistics-HM3/I denotes halogen-free, AEC-Q101, and I-carrier reel; M3/5B is same spec but different reel marking. |
Compared with SMBJ7.5AHE3/A and SMB10J7.5A-M3/5B, SMB10J7.5AHM3/I uniquely combines halogen-free construction, AEC-Q101 qualification, and Vishay's HM3 suffix traceability-making it the preferred choice for Tier-1 automotive suppliers requiring full material compliance documentation and extended temperature validation.
Availability
SMB10J7.5AHM3/I is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, consumer USB power delivery systems, and telecom DC feeder protection requiring stable component supply and full AEC-Q101 traceability.
Supply support for SMB10J7.5AHM3/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, MOSFETs, and protection devices with emphasis on reliability, power density, and automotive-grade qualification.
The SMB10J series belongs to Vishay's TRANSZORB® TVS platform, engineered specifically for high-power-density transient suppression in harsh environments-including engine compartments, industrial PLCs, and outdoor telecom infrastructure.
FAQ
What is the maximum clamping voltage of SMB10J7.5AHM3/I under a 10/1000 µs surge?
The SMB10J7.5AHM3/I has a maximum clamping voltage (VC) of 12.9 V at 77.5 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and confirmed in Vishay's datasheet revision 09-Jan-2024, Document Number 88422. The clamping performance ensures downstream circuitry remains within safe operating limits during standardized surge events.
Is SMB10J7.5AHM3/I qualified for automotive applications?
Yes, SMB10J7.5AHM3/I is AEC-Q101 qualified and carries the HM3 suffix, indicating halogen-free, RoHS-compliant, and automotive-grade reliability. It undergoes stress testing for temperature cycling, high-temperature reverse bias (HTRB), and ESD per AEC-Q101 requirements. This makes SMB10J7.5AHM3/I suitable for use in engine control modules, body electronics, and ADAS subsystems.
What is the thermal resistance from junction to lead (RθJL) for SMB10J7.5AHM3/I?
The SMB10J7.5AHM3/I has a typical junction-to-lead thermal resistance (RθJL) of 20 °C/W, as specified in the Thermal Characteristics section of Vishay's datasheet. This low value enables efficient heat dissipation into PCB copper pads during repetitive surge events, supporting reliable operation in thermally constrained automotive and industrial layouts.
How does the SMB10J7.5AHM3/I differ from the SMBJ7.5AHE3/A in terms of compliance?
SMB10J7.5AHM3/I is halogen-free and AEC-Q101 qualified, whereas SMBJ7.5AHE3/A is RoHS-compliant but not halogen-free and lacks AEC-Q101 certification. Both share identical electrical parameters (VWM = 7.5 V, VC = 12.9 V, PPPM = 1000 W), but SMB10J7.5AHM3/I meets stricter automotive material and reliability standards required by Tier-1 suppliers.
What is the recommended PCB pad layout for SMB10J7.5AHM3/I?
Vishay specifies a minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pad for each terminal of SMB10J7.5AHM3/I to achieve rated power dissipation and thermal performance. The SMB (DO-214AA) package outline and mounting dimensions are detailed in page 5 of datasheet 88422, ensuring optimal solder joint reliability and surge current handling capability for SMB10J7.5AHM3/I.
SMB10J7.5AHM3/I 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):
- 7.5V
- Voltage - Breakdown (Min):
- 8.33V
- Voltage - Clamping (Max) @ Ipp:
- 12.9V
- Current - Peak Pulse (10/1000µs):
- 77.5A
- 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)
SMB10J7.5AHM3/I FAQ
1.How can I place an order for SMB10J7.5AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J7.5AHM3/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 SMB10J7.5AHM3/I reliable?
The price and inventory of SMB10J7.5AHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J7.5AHM3/I is usually 5 days.
3.What payment methods are accepted for SMB10J7.5AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J7.5AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J7.5AHM3/I?
SMB10J7.5AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J7.5AHM3/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 SMB10J7.5AHM3/I?
For technical support, including SMB10J7.5AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J7.5AHM3/I requirements.
6.How does Aetrix verify that SMB10J7.5AHM3/I is sourced from the original manufacturer or authorized distributors?
All SMB10J7.5AHM3/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 SMB10J7.5AHM3/I meets industry standards.
7.What is the process for return or replacement of SMB10J7.5AHM3/I?
All SMB10J7.5AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J7.5AHM3/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 SMB10J7.5AHM3/I part is unused and in its original packaging.
Return procedure for SMB10J7.5AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J7.5AHM3/I Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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