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Vishay General Semiconductor - Diodes Division SMBJ10AHM3_A/I
- Part No.:
- SMBJ10AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ10AHM3_A/I.pdf
- Description:
- TVS DIODE 10VWM 17VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,531
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Product details
Overview
SMBJ10AHM3_A/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for robust overvoltage protection of sensitive electronics. It features a 10 V stand-off voltage (VWM), 11.1–12.3 V breakdown voltage (VBR) at 1 mA, 17.0 V maximum clamping voltage (VC) at 35.3 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - deployed on power rails and signal lines in industrial sensor interfaces.
For engineers reviewing the SMBJ10AHM3_A/I datasheet, SMBJ10AHM3_A/I pinout, SMBJ10AHM3_A/I application, or SMBJ10AHM3_A/I equivalent, this page delivers verified electrical specs, thermal behavior, AEC-Q101 qualification status, halogen-free RoHS compliance, and real-world protection use cases - critical for automotive-grade ESD/surge design validation and BOM continuity planning.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking, leveraging a glass-passivated silicon junction for stable avalanche response. Its low incremental surge resistance and sub-nanosecond response time enable effective suppression of fast transients induced by inductive switching or lightning surges.
Rated for -55 °C to +150 °C operating junction temperature, it delivers 5.0 W steady-state power dissipation at 50 °C ambient on infinite heatsink and meets J-STD-020 MSL Level 1 (260 °C peak reflow). The HM3 suffix confirms halogen-free, RoHS-compliant construction with AEC-Q101 qualification for automotive applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 10 V - Maximum continuous reverse voltage before significant leakage; defines safe operating margin below clamping threshold |
| VBR (Breakdown Voltage) | 11.1–12.3 V at 1 mA - Confirmed avalanche onset range; ensures reliable triggering without premature conduction |
| VC (Clamping Voltage) | 17.0 V at 35.3 A (10/1000 µs) - Peak voltage seen by protected circuit during worst-case surge; limits stress on downstream ICs |
| PPPM (Peak Pulse Power) | 600 W - Sustains high-energy transients without failure; validated per IEC 61000-4-5 Level 4 requirements |
| IPPM (Peak Pulse Current) | 35.3 A - Maximum non-repetitive surge current handled; determines minimum trace width and PCB copper area needed |
| TJmax | +150 °C - Enables operation in under-hood automotive environments and high-temperature industrial enclosures |
| RθJA | 100 °C/W - Thermal resistance from junction to ambient; informs derating curves above 25 °C ambient |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Cathode identified by band marking; anode is unmarked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line (e.g., 12 V rail); conducts surge current to ground when VWM exceeded |
| Anode (unbanded end) | Reference/return path | Typically tied to system ground; completes clamping path during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Supports IEC 61000-4-5 Level 4 surge immunity (4 kV line-to-ground) without degradation |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive powertrain and body electronics per stress-test requirements including HTOL and TC |
| Halogen-free & RoHS-compliant (HM3) | Meets EU Directive 2011/65/EU and IPC-1752A material declaration standards for green manufacturing |
| MSL Level 1 (260 °C peak) | Enables single-pass lead-free reflow without popcorn cracking or delamination risk |
| Low clamping ratio (VC/VBR ≈ 1.5) | Minimizes voltage overshoot during clamping; protects 3.3 V/5 V logic interfaces downstream of LDOs or DC-DC converters |
Applications
| Automotive Sensor Interface Protection | Industrial PLC Digital Input Protection |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor front-ends (e.g., pressure, temperature) against load-dump and ISO 7637-2 pulses in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS placed between supply rail and ground, clamping transients before they reach linear regulators or microcontroller I/O pins. Use Value: Limits VC to 17.0 V during 35.3 A surge, preventing latch-up or gate oxide damage in 12 V automotive systems. |
Use Scenario: Safeguarding 24 V digital input channels on programmable logic controllers exposed to relay coil flyback and field-wiring ESD. IC Role / Device Role / Timing Role: Standoff-rated TVS on input terminal blocks, absorbing repetitive 10/1000 µs surges up to 600 W without parameter drift. Use Value: Maintains 10 V VWM margin above nominal 24 V supply, enabling clean detection of valid logic-high signals while rejecting >17 V threats. |
| Consumer Power Adapter Output Clamping | Telecom Line Card Surge Suppression |
|
Use Scenario: Secondary-side overvoltage protection on AC/DC adapters for USB-C PD and smart home hubs subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Fast-response clamping diode across +5 V output and GND, triggered within <1 ns to limit transient propagation to connected devices. Use Value: Achieves 17.0 V clamping at 35.3 A, ensuring downstream USB-PD controllers remain within absolute maximum ratings during 1 kV/0.5 J surges. |
Use Scenario: Front-end protection of Ethernet PHYs and DSL line drivers in telecom access equipment facing induced surges from nearby power lines. IC Role / Device Role / Timing Role: Unidirectional TVS on DC bias feeds to transformer-coupled data lines, shunting common-mode energy before isolation barrier. Use Value: With 100 °C/W RθJA, enables thermal stability in sealed chassis; halogen-free HM3 construction satisfies Telcordia GR-1210 reliability mandates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10AHE3_A/I | Same electrical specs but RoHS-compliant (E3), not halogen-free; lacks AEC-Q101 qualification | Approved for commercial/industrial use only; not rated for automotive under-hood deployment | Select when halogen-free content or automotive qualification is not required; lower cost alternative for non-automotive BOMs |
| SMBJ10CAHM3_A/I | Bidirectional variant; identical VWM (10 V), VBR (11.1–12.3 V), and VC (17.0 V), but symmetrical clamping in both polarities | Required for AC-coupled or floating signal lines (e.g., RS-485, audio) where reverse polarity surges occur | Choose only if bidirectional protection is mandated; unidirectional SMBJ10AHM3_A/I is optimal for DC rails with defined polarity |
Compared with SMBJ10AHE3_A/I, the SMBJ10AHM3_A/I adds halogen-free materials and AEC-Q101 qualification - essential for automotive Tier-1 suppliers - while SMBJ10CAHM3_A/I trades polarity specificity for symmetrical clamping, increasing capacitance and reducing efficiency on DC-biased lines.
Availability
SMBJ10AHM3_A/I is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC input modules, and telecom line card development requiring stable component supply, long-term lifecycle support, and traceable halogen-free sourcing.
Supply support for SMBJ10AHM3_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, power efficiency, and automotive-grade qualification.
The SMBJ series targets high-reliability transient suppression in harsh environments - engineered for automotive, industrial, and telecom applications where surge immunity, thermal stability, and regulatory compliance are non-negotiable.
FAQ
What is the clamping voltage of SMBJ10AHM3_A/I at its rated peak pulse current?
The SMBJ10AHM3_A/I has a maximum clamping voltage (VC) of 17.0 V at 35.3 A peak pulse current with a 10/1000 µs waveform. This value is measured under standardized test conditions and defines the upper voltage limit imposed on protected circuits during surge events - a critical parameter for ensuring downstream ICs remain within their absolute maximum ratings. The SMBJ10AHM3_A/I maintains this clamping performance across its full operating temperature range.
Is SMBJ10AHM3_A/I qualified for automotive applications?
Yes, SMBJ10AHM3_A/I is AEC-Q101 qualified, as confirmed by the "HM3" suffix and Vishay documentation. This qualification validates its reliability under automotive stress conditions including high-temperature operating life (HTOL), temperature cycling (TC), and unbiased highly accelerated stress testing (uHAST). The SMBJ10AHM3_A/I is approved for use in engine control units, body electronics, and ADAS sensor modules where sustained operation at 150 °C junction temperature is required.
What does the "HM3" suffix indicate for SMBJ10AHM3_A/I?
The "HM3" suffix on SMBJ10AHM3_A/I denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It distinguishes this variant from E3 (RoHS only) and HE3 (RoHS + AEC-Q101, but not halogen-free). The HM3 designation ensures compliance with IEC 61249-2-21 for bromine/chlorine content (<900 ppm) and supports environmental requirements for automotive and green electronics manufacturing - a key differentiator for Tier-1 automotive BOMs.
How does SMBJ10AHM3_A/I differ from SMBJ10CAHM3_A/I?
SMBJ10AHM3_A/I is unidirectional, with cathode-band polarity and clamping action only during reverse-biased overvoltage; SMBJ10CAHM3_A/I is bidirectional, providing symmetrical clamping for AC or floating signals. Both share identical VWM (10 V), VBR (11.1–12.3 V), and VC (17.0 V), but the CA version exhibits higher junction capacitance and is unsuitable for DC-biased rails where polarity is fixed. The SMBJ10AHM3_A/I remains optimal for 12 V/24 V supply rail protection.
What is the thermal resistance of SMBJ10AHM3_A/I, and how does it affect layout?
SMBJ10AHM3_A/I has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on standard 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads. This value directly impacts PCB thermal design: for example, at 5.0 W steady-state dissipation, junction temperature rise exceeds 500 °C - confirming that SMBJ10AHM3_A/I is intended for transient-only duty, not continuous power handling. Layout must prioritize short, wide traces to ground and avoid thermal bottlenecks near the SMBJ10AHM3_A/I body.
SMBJ10AHM3_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):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 17V
- Current - Peak Pulse (10/1000µs):
- 35.3A
- Power - Peak Pulse:
- 600W
- 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)
SMBJ10AHM3_A/I FAQ
1.How can I place an order for SMBJ10AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ10AHM3_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 SMBJ10AHM3_A/I reliable?
The price and inventory of SMBJ10AHM3_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 SMBJ10AHM3_A/I is usually 5 days.
3.What payment methods are accepted for SMBJ10AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ10AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ10AHM3_A/I?
SMBJ10AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ10AHM3_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 SMBJ10AHM3_A/I?
For technical support, including SMBJ10AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ10AHM3_A/I requirements.
6.How does Aetrix verify that SMBJ10AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All SMBJ10AHM3_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 SMBJ10AHM3_A/I meets industry standards.
7.What is the process for return or replacement of SMBJ10AHM3_A/I?
All SMBJ10AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ10AHM3_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 SMBJ10AHM3_A/I part is unused and in its original packaging.
Return procedure for SMBJ10AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ10AHM3_A/I Tags
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