Vishay General Semiconductor - Diodes Division SMB10J13AHM3/I
- Part No.:
- SMB10J13AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J13AHM3/I.pdf
- Description:
- TVS DIODE 13VWM 21.5VC DO214AA
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
SMB10J13AHM3/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 13 V stand-off voltage (VWM), 14.4–15.9 V breakdown voltage (VBR), 21.5 V clamping voltage (VC) at 46.5 A peak pulse current (IPPM), and 1000 W peak pulse power (PPPM) with 10/1000 µs waveform - deployed in automotive power supply inputs and industrial sensor interfaces.
For engineers reviewing the SMB10J13AHM3/I datasheet, SMB10J13AHM3/I pinout, SMB10J13AHM3/I application, or SMB10J13AHM3/I equivalent, key selection criteria include clamping performance under 100 A IFSM surge, AEC-Q101 qualification for automotive use, low thermal resistance (RθJL = 20 °C/W), and halogen-free RoHS compliance per HM3 suffix.
Technical Context
This device operates as a unidirectional avalanche diode, leveraging glass-passivated junction technology to achieve fast response (<1 ns) and stable clamping during ESD and lightning-induced transients. Its 150 °C max junction temperature and MSL Level 1 rating support reflow soldering up to 260 °C peak.
The SMB10J13AHM3/I is optimized for DC line protection where low leakage (<1.0 µA at VWM) and precise voltage thresholding are required. Its bidirectional counterpart (e.g., SMB8J13CA) is not electrically interchangeable due to different IPPM ratings and clamping behavior.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13 V - maximum continuous reverse operating voltage before conduction begins; defines safe operating margin for 12 V automotive systems. |
| VBR min/max | 14.4 V / 15.9 V at 1.0 mA - tight breakdown tolerance ensures predictable turn-on during overvoltage events. |
| VC @ IPPM | 21.5 V at 46.5 A - clamping voltage limits downstream IC stress during 10/1000 µs surges. |
| PPPM | 1000 W - peak pulse power handling capability per standard 10/1000 µs waveform, enabling robust surge immunity. |
| IFSM | 100 A - non-repetitive forward surge current rating supports high-energy load dump protection. |
| RθJL | 20 °C/W - low junction-to-lead thermal resistance enables efficient heat dissipation into PCB copper pads. |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102. Cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point during clamping | Connected to protected line (e.g., +12 V rail); conducts surge current toward ground when V > VBR. |
| Cathode | Reverse-biased terminal; marked with band | Connected to system ground; establishes unidirectional conduction path and defines polarity-sensitive placement. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR over lifetime and improved moisture resistance vs. epoxy-passivated alternatives. |
| AEC-Q101 qualification (HM3 suffix) | Validated for automotive under-hood and infotainment applications requiring extended temperature and reliability compliance. |
| Halogen-free & RoHS-compliant | Meets environmental standards for modern electronics manufacturing without compromising surge performance. |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow without preconditioning or special handling requirements. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients, improving protection margin for sensitive downstream ICs. |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump and ISO 7637-2 Pulse 5a transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground to clamp surges before they reach LDOs or microcontrollers. Use Value: 21.5 V clamping at 46.5 A ensures MCU supply remains below absolute maximum ratings during 1000 W surge events. |
Use Scenario: Shielding analog outputs of pressure/temperature sensors from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-leakage (≤1.0 µA) TVS connected across sensor output and ground to suppress sub-100 ns transients without loading the signal. Use Value: Tight VBR tolerance (14.4–15.9 V) avoids false triggering while maintaining headroom above 10 V sensor full-scale output. |
| Telecom DC Power Feeds | Consumer USB Power Delivery Lines |
|
Use Scenario: Safeguarding PoE-powered equipment inputs against induced surges on long Ethernet runs. IC Role / Device Role / Timing Role: Primary-level TVS on 48 V DC input rail, coordinated with secondary-side protection for cascaded defense. Use Value: 1000 W PPPM rating handles multi-kV lightning-induced surges per IEC 61000-4-5 Level 4 requirements. |
Use Scenario: Adding robustness to USB-C VBUS lines exposed to hot-plug and adapter fault conditions. IC Role / Device Role / Timing Role: Unidirectional clamp between VBUS and GND, sized to survive 100 A IFSM surges from short-circuit recovery. Use Value: RθJL = 20 °C/W enables reliable operation without heatsinking in space-constrained portable designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMB10J13AHE3/I | Same electrical specs but RoHS-compliant commercial grade (E3), not halogen-free or AEC-Q101 qualified. | Lacks automotive qualification and halogen-free certification; suitable for industrial/commercial PCBs only. | Select SMB10J13AHM3/I when AEC-Q101 compliance and halogen-free materials are mandatory. |
| SMBJ13A-M3/5B | Same SMB package and VWM/VBR/VC specs, but rated for 600 W PPPM (vs. 1000 W) and lower IPPM (33.2 A). | Insufficient for high-energy load dump; limited to lower-tier surge immunity (IEC 61000-4-5 Level 2). | Choose SMB10J13AHM3/I where full 1000 W surge handling and 100 A IFSM are required. |
Compared with SMB10J13AHE3/I and SMBJ13A-M3/5B, the SMB10J13AHM3/I delivers higher surge robustness (1000 W), automotive qualification, and halogen-free construction - making it the sole option meeting Tier 1 automotive power rail protection requirements.
Availability
SMB10J13AHM3/I is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface development, and telecom power feed protection requiring stable component supply and long-term lifecycle assurance.
Supply support for SMB10J13AHM3/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 and application-specific performance.
The SMB10JxxA series targets high-power-density transient suppression in space-constrained, high-reliability environments - especially automotive and industrial systems demanding AEC-Q101 validation and consistent clamping behavior.
FAQ
What is the clamping voltage of SMB10J13AHM3/I at its rated peak pulse current?
The SMB10J13AHM3/I has a maximum clamping voltage (VC) of 21.5 V at 46.5 A peak pulse current (IPPM), measured using the standard 10/1000 µs waveform. This value ensures protected circuits remain within safe voltage limits during surge events, and is confirmed in Vishay's Document Number 88422, Table "UNIDIRECTIONAL" on page 2.
Is SMB10J13AHM3/I qualified for automotive applications?
Yes, SMB10J13AHM3/I is AEC-Q101 qualified, as explicitly stated in the Vishay datasheet (Document Number 88422, Revision 09-Jan-2024). The "HM3" suffix denotes halogen-free, RoHS-compliant, and AEC-Q101-qualified construction - validated for automotive under-hood and body control module use.
What does the "HM3" suffix mean in SMB10J13AHM3/I?
The "HM3" suffix in SMB10J13AHM3/I indicates halogen-free, RoHS-compliant, and AEC-Q101-qualified construction. It distinguishes this variant from commercial-grade versions (e.g., E3) and confirms compliance with automotive reliability standards and environmental regulations per Vishay's ordering information table on page 3 of Document 88422.
Can SMB10J13AHM3/I be used in bidirectional protection circuits?
No, SMB10J13AHM3/I is strictly unidirectional. Its cathode band marking and electrical characteristics (e.g., forward surge rating IFSM = 100 A) confirm single-polarity operation. For bidirectional protection, Vishay specifies separate part numbers like SMB8J13CA - which differ in IPPM (37.2 A), VC (21.5 V), and lack IFSM rating.
What is the thermal resistance from junction to lead (RθJL) for SMB10J13AHM3/I?
The SMB10J13AHM3/I has a typical junction-to-lead thermal resistance (RθJL) of 20 °C/W, as specified in the "THERMAL CHARACTERISTICS" table on page 4 of Vishay Document Number 88422. This low value supports effective heat transfer to PCB copper pads during repetitive surge events.
SMB10J13AHM3/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):
- 13V
- Voltage - Breakdown (Min):
- 14.4V
- Voltage - Clamping (Max) @ Ipp:
- 21.5V
- Current - Peak Pulse (10/1000µs):
- 46.5A
- 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)
SMB10J13AHM3/I FAQ
1.How can I place an order for SMB10J13AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J13AHM3/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 SMB10J13AHM3/I reliable?
The price and inventory of SMB10J13AHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J13AHM3/I is usually 5 days.
3.What payment methods are accepted for SMB10J13AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J13AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J13AHM3/I?
SMB10J13AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J13AHM3/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 SMB10J13AHM3/I?
For technical support, including SMB10J13AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J13AHM3/I requirements.
6.How does Aetrix verify that SMB10J13AHM3/I is sourced from the original manufacturer or authorized distributors?
All SMB10J13AHM3/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 SMB10J13AHM3/I meets industry standards.
7.What is the process for return or replacement of SMB10J13AHM3/I?
All SMB10J13AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J13AHM3/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 SMB10J13AHM3/I part is unused and in its original packaging.
Return procedure for SMB10J13AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J13AHM3/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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onsemi

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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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