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Vishay General Semiconductor - Diodes Division SMB10J7.5AHM3_A/I
- Part No.:
- SMB10J7.5AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J7.5AHM3_A/I.pdf
- Description:
- TVS DIODE 7.5VWM 12.9VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,238
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Product details
Overview
SMB10J7.5AHM3_A/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, 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 ECUs and industrial sensor interfaces.
For engineers reviewing the SMB10J7.5AHM3_A/I datasheet, SMB10J7.5AHM3_A/I pinout, SMB10J7.5AHM3_A/I application, or SMB10J7.5AHM3_A/I equivalent, key selection criteria include AEC-Q101 qualification, unidirectional polarity, halogen-free RoHS compliance (HM3 suffix), and thermal resistance (RθJL = 20 °C/W) for sustained surge handling in compact PCB layouts.
Technical Context
This device operates as a silicon avalanche diode with glass-passivated junction, delivering fast response (<1 ns) to transients induced by inductive switching or ESD events. Its low incremental surge resistance ensures stable clamping under repetitive surges, while MSL Level 1 rating supports lead-free reflow up to 260 °C peak.
The SMB10J7.5AHM3_A/I is rated for -55 °C to +150 °C operating junction temperature and exhibits 1.0 µA max reverse leakage at VWM. It meets ANSI/IEEE C62.35 standards for surge suppression and is optimized for placement on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to sustain full 1000 W rating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.5 V - maximum continuous reverse working voltage before clamping begins; defines safe DC rail operating margin. |
| VBR (min/max) | 8.33 V / 9.21 V at IT = 1.0 mA - guaranteed avalanche initiation range; ensures consistent turn-on across production lots. |
| VC @ IPPM | 12.9 V at 77.5 A - clamped voltage during 10/1000 µs surge; determines protected circuit's maximum transient overvoltage. |
| PPPM | 1000 W - peak pulse power handling with 10/1000 µs waveform; enables robust protection against ISO 7637-2 Pulse 1/2a/5a. |
| RθJL | 20 °C/W - junction-to-lead thermal resistance; supports reliable heat dissipation into PCB copper without heatsink. |
| TJ max | +150 °C - maximum junction temperature; allows operation in under-hood automotive environments. |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including HTOL, TC, UHAST, and ESD testing per stress test plan. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, molded plastic case with matte tin-plated leads; cathode indicated by color band on one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Anode of internal avalanche junction | Connected to protected line; conducts surge current toward ground when voltage exceeds VBR. |
| Anode (unmarked end) | Cathode of internal avalanche junction | Typically tied to system ground or low-impedance return path; completes clamping loop during transient event. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS sensors. |
| Halogen-free & RoHS-compliant (HM3) | Meets IEC 61249-2-21 and JEDEC J-STD-20E requirements for green manufacturing and end-of-life processing. |
| Low profile SMB package | Height ≤ 2.20 mm enables use in space-constrained modules such as TCU and battery management systems. |
| Glass-passivated chip junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity exposure. |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow without pre-baking; compatible with high-volume SMT assembly lines. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V supply inputs in engine control units (ECUs) against load dump and ISO 7637-2 transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and LDO input to clamp surges before regulation stage. Use Value: Withstands 1000 W pulses and clamps to ≤12.9 V, preventing damage to downstream 5 V/3.3 V logic and CAN transceivers. |
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. Use Value: 1.0 µA leakage at 7.5 V avoids signal offset errors; fast <1 ns response preserves sensor accuracy during transient events. |
| Telecom DC Power Input Protection | Consumer USB-C Power Delivery Line |
|
Use Scenario: Securing 48 V DC input of PoE-powered network switches against lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary TVS on front-end rectifier output, coordinated with MOV and gas discharge tube for staged protection. Use Value: 1000 W PPPM rating and 20 °C/W RθJL enable repeated surge absorption without thermal runaway in sealed enclosures. |
Use Scenario: Protecting VBUS line in USB-C receptacles against hot-plug transients and reverse-voltage faults during PD negotiation. IC Role / Device Role / Timing Role: Unidirectional clamp between VBUS and GND, sized to meet USB-IF ESD compliance without affecting 5–20 V PD voltage steps. Use Value: Tight VBR tolerance (±5.5%) and 7.5 V VWM allow clean pass-through of 5 V nominal while blocking >12.9 V faults. |
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/I | Same VWM/VBR/VC specs but E3 (non-halogen-free) RoHS variant; RθJL = 20 °C/W, same SMB package. | Lacks halogen-free certification; suitable for commercial/industrial use where HM3 compliance is not mandated. | Select SMBJ7.5AHE3_A/I only if halogen-free material content is not required by OEM specification or regional regulation. |
| 1.5SMC7.5A | Higher package thermal resistance (RθJA = 10 °C/W vs. 72 °C/W), larger SMC (DO-214AB) footprint, 1000 W rating retained. | Requires more PCB area and offers inferior board-level thermal performance; used where higher mounting pad area is available. | Choose 1.5SMC7.5A only when layout allows larger SMC footprint and enhanced junction-to-ambient convection cooling is needed. |
Compared with SMB10J7.5AHM3_A/I, SMBJ7.5AHE3_A/I provides identical electrical performance without halogen-free assurance, while 1.5SMC7.5A trades compact SMB size for greater thermal mass - making SMB10J7.5AHM3_A/I optimal for AEC-Q101-compliant, space-constrained automotive designs.
Availability
SMB10J7.5AHM3_A/I is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface protection, and telecom DC power input applications requiring stable component supply, AEC-Q101 traceability, and halogen-free compliance.
Supply support for SMB10J7.5AHM3_A/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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific optimization.
The SMB10J7.5AHM3_A/I belongs to Vishay's TRANSZORB® TVS family, engineered for high-power-density transient suppression in harsh environments - particularly targeting automotive, industrial, and communications infrastructure where AEC-Q101 validation and thermal robustness are critical.
FAQ
What is the clamping voltage of SMB10J7.5AHM3_A/I at its rated peak pulse current?
The SMB10J7.5AHM3_A/I has a maximum clamping voltage (VC) of 12.9 V at 77.5 A peak pulse current (IPPM) under 10/1000 µs waveform conditions. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during surge events. The SMB10J7.5AHM3_A/I maintains this clamping performance across its full operating temperature range (-55 °C to +150 °C) when mounted on recommended 0.2" × 0.2" copper pads.
Is SMB10J7.5AHM3_A/I certified for automotive use?
Yes, SMB10J7.5AHM3_A/I is AEC-Q101 qualified, having passed stress tests including high-temperature operating life (HTOL), temperature cycling (TC), unbiased highly accelerated stress test (UHAST), and ESD (HBM/MM). The HM3 suffix confirms halogen-free, RoHS-compliant construction meeting automotive material requirements. This makes SMB10J7.5AHM3_A/I suitable for under-hood and cabin applications such as body control modules and ADAS sensor interfaces.
What does the "HM3" suffix indicate in SMB10J7.5AHM3_A/I?
The "HM3" suffix in SMB10J7.5AHM3_A/I denotes halogen-free, RoHS-compliant construction per IEC 61249-2-21 and JEDEC J-STD-20E, with whisker resistance per JESD 201 Class 2. It also signifies compliance with Vishay's automotive-grade material categorization. Unlike E3 variants, HM3 ensures no brominated flame retardants or chlorine-based compounds - critical for OEM sustainability mandates and end-of-life recycling in automotive programs.
How does SMB10J7.5AHM3_A/I differ from bidirectional TVS diodes like SMB8J7.5CA?
SMB10J7.5AHM3_A/I is unidirectional and intended for DC line protection where polarity is fixed (e.g., 12 V battery rail), offering 1000 W PPPM. In contrast, SMB8J7.5CA is bidirectional with symmetrical clamping, lower 800 W PPPM, and 200 A IPPM - suited for AC-coupled or floating signal lines. The SMB10J7.5AHM3_A/I's unidirectional architecture delivers tighter leakage (1.0 µA at VWM) and higher surge capacity than its bidirectional counterpart.
What is the thermal resistance from junction to ambient for SMB10J7.5AHM3_A/I?
The SMB10J7.5AHM3_A/I has a typical junction-to-ambient thermal resistance (RθJA) of 72 °C/W when mounted on standard FR-4 PCB with 0.2" × 0.2" copper pads per terminal. However, its junction-to-lead resistance (RθJL) is 20 °C/W - a more relevant metric for high-pulse applications - indicating efficient heat transfer directly into the PCB copper, enabling sustained surge handling without thermal derating in properly laid out designs.
SMB10J7.5AHM3_A/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:
- 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/I FAQ
1.How can I place an order for SMB10J7.5AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J7.5AHM3_A/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_A/I reliable?
The price and inventory of SMB10J7.5AHM3_A/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_A/I is usually 5 days.
3.What payment methods are accepted for SMB10J7.5AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J7.5AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J7.5AHM3_A/I?
SMB10J7.5AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J7.5AHM3_A/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_A/I?
For technical support, including SMB10J7.5AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J7.5AHM3_A/I requirements.
6.How does Aetrix verify that SMB10J7.5AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All SMB10J7.5AHM3_A/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_A/I meets industry standards.
7.What is the process for return or replacement of SMB10J7.5AHM3_A/I?
All SMB10J7.5AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J7.5AHM3_A/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_A/I part is unused and in its original packaging.
Return procedure for SMB10J7.5AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J7.5AHM3_A/I Tags
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