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Vishay General Semiconductor - Diodes Division SMB10J7.5AHM3_A/H
- Part No.:
- SMB10J7.5AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J7.5AHM3_A/H.pdf
- Description:
- TVS DIODE 7.5VWM 12.9VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,004
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Product details
Overview
SMB10J7.5AHM3_A/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 7.5 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 - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMB10J7.5AHM3_A/H datasheet, SMB10J7.5AHM3_A/H pinout, SMB10J7.5AHM3_A/H application, or SMB10J7.5AHM3_A/H equivalent, key selection criteria include clamping performance under 100 A surge, AEC-Q101 qualification status, thermal resistance (RθJA = 72 °C/W), and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This device operates as a unidirectional avalanche diode, leveraging glass-passivated junction technology to achieve fast response time (<1 ps) and low incremental surge resistance. Its clamping behavior conforms to ANSI/IEEE C62.35 standards, with defined derating above 25 °C ambient per Figure 2 of the datasheet.
The SMB10J7.5AHM3_A/H is rated for -55 °C to +150 °C operating junction temperature and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. Its matte tin-plated leads comply with J-STD-002 and JESD 22-B102 solderability requirements and JESD 201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.5 V - maximum continuous reverse working voltage before leakage exceeds 100 μA; sets upper limit for protected circuit DC bias |
| VBR min/max | 8.33 V / 9.21 V at IT = 1.0 mA - defines guaranteed avalanche onset range; ensures consistent turn-on across production lots |
| VC @ IPPM | 12.9 V at 77.5 A - clamping voltage during 10/1000 µs surge; determines worst-case overvoltage seen by downstream ICs |
| PPPM | 1000 W - peak pulse power handling capability; enables protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) |
| RθJA | 72 °C/W - junction-to-ambient thermal resistance on standard 0.2" × 0.2" copper pads; informs board-level thermal design margin |
| TJ max | +150 °C - maximum allowable junction temperature; supports operation in under-hood automotive environments |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including HTOL, TC, UHAST, and ESD testing per AEC specification |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with cathode band marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); molded compound meets UL 94 V-0.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected line (e.g., GND or return path); conducts during forward surge events |
| Cathode | Avalanche clamping terminal | Connected to higher-potential side (e.g., VBUS or signal line); initiates clamping when reverse voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable, repeatable avalanche characteristics over lifetime and temperature; eliminates passivation-related leakage drift |
| AEC-Q101 qualification (HM3 suffix) | Confirms suitability for automotive applications including engine control units, ADAS sensors, and body electronics |
| MSL Level 1 rating | Supports single-reflow assembly without moisture sensitivity concerns; no baking required prior to SMT placement |
| Halogen-free & RoHS-compliant | Meets environmental compliance mandates for EU, China RoHS, and automotive OEM substance restrictions |
| Low incremental surge resistance | Minimizes voltage overshoot during fast transients; critical for protecting low-voltage logic (e.g., 3.3 V or 5 V microcontrollers) |
Applications
| Automotive Sensor Interface | Industrial PLC Digital Input |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor front-ends (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and ground to clamp induced transients before they reach the IC's ESD structure. Use Value: Limits voltage to ≤12.9 V during 77.5 A surge, preventing latch-up or gate oxide damage in 5 V tolerant receivers. |
Use Scenario: Safeguarding 24 V digital input channels in programmable logic controllers against field-wiring surges and relay coil flyback. IC Role / Device Role / Timing Role: Primary surge suppression element on the input node, coordinated with series impedance and filtering. Use Value: Absorbs 1000 W peak energy without degradation, maintaining channel integrity across 100,000+ switching cycles. |
| Consumer Power Adapter Output | Telecom PoE Midspan Protection |
Use Scenario: Secondary-side overvoltage suppression on 5 V/9 V/12 V USB-C PD and wall adapter outputs exposed to cable coupling events. IC Role / Device Role / Timing Role: Final-stage clamping device downstream of DC-DC converter, guarding connected devices. Use Value: Clamps to 12.9 V within <1 ps, limiting stress on USB interface ICs rated for 16 V absolute maximum. |
Use Scenario: Protecting Ethernet PHYs and power sourcing equipment (PSE) controller ICs in IEEE 802.3af/at midspans from lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Common-mode TVS on data pair (e.g., pairs 1–2 and 3–6), referenced to chassis ground. Use Value: Withstands repeated 10/1000 µs surges up to 1 kV while maintaining <100 μA leakage at 7.5 V, preserving link integrity. |
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/H | Same VWM (7.5 V), VBR (8.33–9.21 V), and PPPM (1000 W), but commercial-grade (non-AEC-Q101); RθJA = 72 °C/W identical | Lacks automotive qualification; suitable for industrial/commercial designs where AEC-Q101 is not mandated | Select when cost sensitivity outweighs automotive reliability requirements and qualification documentation is not required |
| SMB10J7.5A-E3/52 | Identical electrical specs and SMB package, but RoHS-compliant commercial grade (E3 suffix); no halogen-free or AEC-Q101 claim | Not qualified for automotive use; intended for consumer and general industrial applications | Choose for non-automotive volume production where halogen-free content is not specified and AEC-Q101 is unnecessary |
Compared with SMB10J7.5AHM3_A/H, SMBJ7.5AHE3_A/H offers identical clamping and thermal performance but omits AEC-Q101 validation, while SMB10J7.5A-E3/52 removes both halogen-free and automotive qualifications - making the HM3 variant the only choice for Tier 1 automotive supply chains requiring full compliance traceability.
Availability
SMB10J7.5AHM3_A/H is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC inputs, and telecom power-over-Ethernet systems requiring stable component supply with full AEC-Q101 and halogen-free compliance.
Supply support for SMB10J7.5AHM3_A/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, MOSFETs, and protection devices with emphasis on reliability and application-specific optimization.
The SMB10JxxA series targets high-power-density transient suppression in space-constrained automotive and industrial environments, prioritizing robust clamping, AEC-Q101 compliance, and automated manufacturability.
FAQ
What is the clamping voltage of SMB10J7.5AHM3_A/H at its rated peak pulse current?
The SMB10J7.5AHM3_A/H has a maximum clamping voltage (VC) of 12.9 V at 77.5 A peak pulse current (IPPM), measured under the standardized 10/1000 µs waveform. This value represents the highest voltage the device allows across its terminals during a full-rated surge event, directly defining the protection level for downstream components. The SMB10J7.5AHM3_A/H maintains this clamping performance across its qualified operating temperature range of -55 °C to +150 °C.
Is SMB10J7.5AHM3_A/H suitable for automotive applications?
Yes, SMB10J7.5AHM3_A/H is AEC-Q101 qualified and carries the HM3 suffix indicating halogen-free, RoHS-compliant, and automotive-grade construction. It has passed stress tests including high-temperature operating life (HTOL), temperature cycling (TC), unbiased highly accelerated stress test (UHAST), and ESD per AEC-Q101. The SMB10J7.5AHM3_A/H is explicitly designated for use in engine control units, ADAS sensors, and body electronics where automotive reliability is mandatory.
What does the "HM3" suffix indicate in SMB10J7.5AHM3_A/H?
The "HM3" suffix in SMB10J7.5AHM3_A/H denotes halogen-free, RoHS-compliant, and AEC-Q101 qualified construction. It distinguishes this variant from commercial-grade versions (e.g., E3 or M3) and confirms compliance with automotive environmental and reliability standards. The "_A/H" further specifies packaging: "A" indicates the revision code, and "H" denotes 7″ tape-and-reel delivery with 750 units per reel - a detail confirmed in Vishay's ordering information table.
How does SMB10J7.5AHM3_A/H compare to SMBJ7.5AHE3_A/H in terms of surge capability?
SMB10J7.5AHM3_A/H and SMBJ7.5AHE3_A/H share identical electrical specifications: 7.5 V VWM, 8.33–9.21 V VBR, 12.9 V VC at 77.5 A, and 1000 W PPPM. Their thermal resistance (RθJA = 72 °C/W) and package (SMB/DO-214AA) are also identical. The core difference lies in qualification: SMB10J7.5AHM3_A/H is AEC-Q101 qualified and halogen-free, whereas SMBJ7.5AHE3_A/H is AEC-Q101 qualified but not halogen-free - making SMB10J7.5AHM3_A/H the compliant choice for strict automotive material declarations.
What PCB layout guidance applies to SMB10J7.5AHM3_A/H for optimal thermal performance?
For optimal thermal performance, SMB10J7.5AHM3_A/H must be mounted on minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as specified in the datasheet's derating curves. These pads provide the 72 °C/W RθJA value; reducing pad area increases junction temperature and reduces surge current capability. The SMB10J7.5AHM3_A/H footprint matches standard SMB (DO-214AA) land patterns, and its matte tin-plated leads ensure reliable solder joint formation per J-STD-002.
SMB10J7.5AHM3_A/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:
- Obsolete
- 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_A/H FAQ
1.How can I place an order for SMB10J7.5AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J7.5AHM3_A/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 SMB10J7.5AHM3_A/H reliable?
The price and inventory of SMB10J7.5AHM3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J7.5AHM3_A/H is usually 5 days.
3.What payment methods are accepted for SMB10J7.5AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J7.5AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J7.5AHM3_A/H?
SMB10J7.5AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J7.5AHM3_A/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 SMB10J7.5AHM3_A/H?
For technical support, including SMB10J7.5AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J7.5AHM3_A/H requirements.
6.How does Aetrix verify that SMB10J7.5AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All SMB10J7.5AHM3_A/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 SMB10J7.5AHM3_A/H meets industry standards.
7.What is the process for return or replacement of SMB10J7.5AHM3_A/H?
All SMB10J7.5AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J7.5AHM3_A/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 SMB10J7.5AHM3_A/H part is unused and in its original packaging.
Return procedure for SMB10J7.5AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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