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Vishay General Semiconductor - Diodes Division SMBJ10AHM3/I
- Part No.:
- SMBJ10AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ10AHM3/I.pdf
- Description:
- TVS DIODE 10VWM 17VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,985
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Product details
Overview
SMBJ10AHM3/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on power and signal lines. It features a 10 V stand-off voltage (VWM), 11.1–12.3 V breakdown voltage (VBR) at 10 mA, 17.0 V maximum clamping voltage (VC) at 35.3 A peak pulse current (IPPM), and 600 W peak pulse power (10/1000 µs waveform), used in industrial sensor protection and MOSFET gate drive circuits.
For engineers reviewing the SMBJ10AHM3/I datasheet, SMBJ10AHM3/I pinout, SMBJ10AHM3/I application, or SMBJ10AHM3/I equivalent, this page delivers verified electrical parameters, thermal derating behavior, AEC-Q101 qualification status, halogen-free RoHS compliance, and real-world clamping performance under standardized surge waveforms - all critical for automotive-grade ESD and lightning transient design validation.
Technical Context
This TVS diode operates as a unidirectional avalanche clamp, with cathode-banded polarity and glass-passivated junction for stable breakdown characteristics. Its low incremental surge resistance and fast response time (<1 ns) enable effective suppression of inductive switching spikes and ESD events up to ±30 kV (IEC 61000-4-2).
The device is rated for 150 °C maximum junction temperature and exhibits a 0.078 %/°C temperature coefficient of VBR. Thermal resistance is 100 °C/W junction-to-ambient (on 0.2" × 0.2" copper pads) and 20 °C/W junction-to-lead, supporting reliable operation in compact PCB layouts without forced cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse operating voltage before significant leakage; defines safe working margin below clamping threshold. |
| VBR (min/max) | 11.1 V / 12.3 V at IT = 10 mA - Confirmed breakdown range ensures predictable turn-on during overvoltage events. |
| VC @ IPPM | 17.0 V at 35.3 A (10/1000 µs) - Clamping voltage limits downstream IC stress; enables robust protection of 12 V rail interfaces. |
| PPPM | 600 W - Peak pulse power handling capability per standard 10/1000 µs waveform; supports repetitive surge duty cycle ≤0.01 %. |
| ID @ VWM | 5.0 µA max - Low reverse leakage preserves signal integrity and minimizes standby power loss in high-impedance circuits. |
| TJ max. | 150 °C - Enables use in under-hood automotive environments and industrial enclosures with elevated ambient temperatures. |
| Package | SMB (DO-214AA) - Surface-mount footprint (5.21 mm × 4.06 mm × 2.20 mm) compatible with automated placement and reflow soldering. |
Pinout & Package
Package: SMB (DO-214AA), molded case with matte tin-plated leads, MSL Level 1 (JEDEC J-STD-020), lead-free and halogen-free compliant (HM3 suffix). Polarity indicated by cathode band; anode and cathode terminals are axially oriented along the body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line; conducts surge current to ground when VLINE exceeds VBR. |
| Anode | Reference/return path | Typically tied to system ground or low-impedance return plane; completes clamping path during overvoltage event. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Supports IEC 61000-4-5 Level 3 (1 kV surge) protection on 12 V DC rails without external series impedance. |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive powertrain and body electronics applications requiring zero defect reliability and extended temperature operation. |
| Halogen-free & RoHS-compliant | Meets IPC-1752A material declaration requirements and EU Directive 2015/863 for restricted substances. |
| Low clamping ratio (VC/VBR ≈ 1.53) | Minimizes voltage overshoot during clamping; reduces risk of latch-up or damage to downstream 15 V-tolerant ICs. |
| MSL Level 1 moisture sensitivity | Enables direct placement without baking; eliminates production delays and moisture-related popcorning during reflow. |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: Protects microcontroller GPIO pins and CAN transceiver power rails from load dump and alternator ripple in 12 V vehicle systems. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between 12 V supply and ground, triggered within <1 ns upon overvoltage detection. Use Value: Limits transient voltage to ≤17.0 V, preventing damage to 24 V-rated MCU I/O cells while maintaining functional safety compliance. |
Use Scenario: Shields 24 V digital input channels from inductive kickback generated by solenoid valve switching in factory automation cabinets. IC Role / Device Role / Timing Role: Standoff device mounted directly at connector entry point, shunting surge energy before reaching optocoupler input stage. Use Value: Withstands 100 A non-repetitive forward surge (IFSM), ensuring long-term reliability across millions of actuation cycles. |
| Telecom Power Supply Front-End | Consumer Appliance Motor Driver Protection |
Use Scenario: Guards AC/DC adapter output stages against lightning-induced surges entering via PoE or auxiliary DC inputs in base station equipment. IC Role / Device Role / Timing Role: Primary clamping element in Class II secondary-side surge protection network, coordinated with MOV and fuse. Use Value: 600 W rating and 17.0 V VC allow coordination with upstream 20 V-rated DC-DC converters without over-clamp margin loss. |
Use Scenario: Safeguards H-bridge gate drivers in smart washing machine motor control boards exposed to brush-commutator noise and relay bounce. IC Role / Device Role / Timing Role: Localized TVS on each half-bridge supply rail, placed adjacent to driver IC to minimize loop inductance. Use Value: 0.078 %/°C VBR tempco ensures stable clamping threshold across -40 °C to +125 °C ambient, critical for sealed enclosure operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10AHE3/I | Same electrical specs but RoHS-compliant (non-halogen-free); lacks AEC-Q101 qualification. | Suitable for commercial-grade consumer and computing applications where automotive reliability is not required. | Select when halogen-free content is not mandated and cost optimization is prioritized over automotive qualification. |
| SMAJ10A-HF | Lower PPPM (400 W), larger VBR tolerance (10.0–12.2 V), SMA package (smaller footprint, higher RθJA = 150 °C/W). | Limited to lower-energy transients; requires tighter thermal management due to reduced power handling and worse thermal resistance. | Choose only for space-constrained designs with ≤400 W surge exposure and validated thermal layout. |
Compared with SMBJ10AHM3/I, SMBJ10AHE3/I offers identical clamping performance without halogen-free assurance or AEC-Q101 validation, while SMAJ10A-HF trades 33 % lower surge power and inferior thermal performance for a 30 % smaller footprint - making SMBJ10AHM3/I the optimal choice for automotive and industrial applications demanding full 600 W capability and guaranteed qualification.
Availability
SMBJ10AHM3/I is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC input modules, telecom power front-ends, and appliance motor control systems requiring stable component supply, long-term lifecycle support, and traceable halogen-free sourcing.
Supply support for SMBJ10AHM3/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, precision, and application-specific qualification.
The SMBJ series targets high-energy transient suppression in automotive, industrial, and telecom infrastructure, engineered to meet AEC-Q101, UL 497B, and IEC 61000-4-x standards with consistent clamping performance across temperature and lifetime.
FAQ
What is the maximum clamping voltage of SMBJ10AHM3/I under a 10/1000 µs surge?
The SMBJ10AHM3/I has a maximum clamping voltage (VC) of 17.0 V when subjected to its rated peak pulse current of 35.3 A using the standardized 10/1000 µs waveform. This value is measured at TJ = 25 °C and defines the upper voltage limit imposed on protected circuitry during transient events - critical for ensuring compatibility with 15 V-tolerant interface ICs and microcontrollers in automotive and industrial designs.
Is SMBJ10AHM3/I qualified for automotive applications?
Yes, SMBJ10AHM3/I is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HM3", which denotes halogen-free, RoHS-compliant, and automotive-grade qualification. This certification validates its performance across -40 °C to +150 °C junction temperature, mechanical shock/vibration resistance, and long-term reliability under accelerated life testing - making SMBJ10AHM3/I suitable for engine control units, body control modules, and ADAS power domains.
What does the "HM3" suffix mean in SMBJ10AHM3/I?
The "HM3" suffix in SMBJ10AHM3/I indicates halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It distinguishes this variant from commercial-grade "E3" (RoHS only) and "HE3" (AEC-Q101, non-halogen-free) versions. The "I" denotes 13-inch tape-and-reel packaging (3200 units per reel), while "H" would indicate 7-inch reels (750 units). All HM3 variants meet JESD201 Class 2 whisker resistance and UL 94 V-0 flammability standards.
How does SMBJ10AHM3/I compare to bidirectional TVS diodes like SMBJ10CA?
SMBJ10AHM3/I is unidirectional and intended for DC line protection with defined polarity (cathode-banded), whereas SMBJ10CA is bidirectional and used in AC-coupled or floating signal paths. SMBJ10AHM3/I provides lower forward voltage drop during conduction and supports higher IFSM (100 A vs. N/A for bidirectional), but cannot protect symmetric AC waveforms. Its 10 V VWM and 17.0 V VC apply only in reverse bias; forward conduction follows standard silicon diode behavior.
What is the thermal resistance of SMBJ10AHM3/I, and how does it affect layout?
SMBJ10AHM3/I has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, and 20 °C/W junction-to-lead (RθJL). This means PCB layout must allocate adequate copper area for heat dissipation during repetitive surges; reducing pad size increases RθJA and risks thermal runaway. For high-duty-cycle applications, thermal vias under pads and internal ground planes are recommended to maintain TJ ≤ 150 °C.
SMBJ10AHM3/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):
- 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/I FAQ
1.How can I place an order for SMBJ10AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ10AHM3/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/I reliable?
The price and inventory of SMBJ10AHM3/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/I is usually 5 days.
3.What payment methods are accepted for SMBJ10AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ10AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ10AHM3/I?
SMBJ10AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ10AHM3/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/I?
For technical support, including SMBJ10AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ10AHM3/I requirements.
6.How does Aetrix verify that SMBJ10AHM3/I is sourced from the original manufacturer or authorized distributors?
All SMBJ10AHM3/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/I meets industry standards.
7.What is the process for return or replacement of SMBJ10AHM3/I?
All SMBJ10AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ10AHM3/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/I part is unused and in its original packaging.
Return procedure for SMBJ10AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ10AHM3/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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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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