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Vishay General Semiconductor - Diodes Division SMBJ10AHM3_B/I
- Part No.:
- SMBJ10AHM3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ10AHM3_B/I.pdf
- Description:
- 600W,10V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:4,960
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Product details
Overview
SMBJ10AHM3_B/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 10 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 I/O lines of industrial sensor interfaces.
For engineers reviewing the SMBJ10AHM3_B/I datasheet, SMBJ10AHM3_B/I pinout, SMBJ10AHM3_B/I application, or SMBJ10AHM3_B/I equivalent, this device serves as a halogen-free, RoHS-compliant, AEC-Q101 qualified TVS for automotive-grade ESD and surge immunity in DC power inputs, USB ports, and MOSFET gate protection circuits where low clamping voltage and fast response (<1 ns) are critical.
Technical Context
This unidirectional TVS operates by avalanche breakdown to clamp transient voltages above its VWM threshold while maintaining <5.0 µA reverse leakage at 10 V. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low incremental surge resistance, enabling consistent clamping performance under repetitive 0.01% duty-cycle surges.
The device is rated for TJ = –55 °C to +150 °C operation, with thermal resistance RθJA = 100 °C/W (on 0.2" × 0.2" copper pads) and RθJL = 20 °C/W, supporting reliable thermal dissipation in compact PCB layouts without heatsinking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse operating voltage before conduction begins; defines safe DC bias margin for protected line. |
| VBR @ IT = 10 mA | 11.1–12.3 V - Verified breakdown range ensuring predictable turn-on during transients; tight tolerance supports precise system-level protection thresholds. |
| VC @ IPPM = 35.3 A | 17.0 V - Clamped voltage during 600 W surge; limits downstream IC stress to safe levels below absolute maximum ratings. |
| PPPM | 600 W - Peak pulse power handling with 10/1000 µs waveform; sufficient for IEC 61000-4-5 Level 3 (1 kV/2 Ω) surge events. |
| IFSM | 100 A - Non-repetitive forward surge rating (8.3 ms half-sine); supports high-energy fault clearing in power supply inputs. |
| TJ max. | +150 °C - Extended junction temperature capability enables use in under-hood automotive and industrial environments. |
| Package | SMB (DO-214AA) - Low-profile SMT footprint (5.21 mm × 4.06 mm × 2.20 mm) compatible with automated placement and reflow soldering per J-STD-020 MSL Level 1. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, cathode-indicated by band. Matte tin-plated leads, solderable per J-STD-002 and JESD 22-B102. Meets UL 94 V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / transient return path | Connected to ground or low-impedance return plane; completes clamping loop during overvoltage events. |
| Cathode | Protected line connection / transient sink | Connected to the line being protected (e.g., 12 V rail, USB VBUS); conducts avalanche current to anode during clamping. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables compliance with IEC 61000-4-5 surge immunity requirements up to Level 3 without external series impedance. |
| 17.0 V clamping voltage at 35.3 A | Keeps protected ICs (e.g., microcontrollers, CAN transceivers) within safe operating area during 1 kV surge events. |
| AEC-Q101 qualified & halogen-free | Validated for automotive applications including body control modules and ADAS sensor interfaces with full traceability. |
| Low incremental surge resistance | Minimizes VC overshoot and energy dissipation during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a). |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow profiles without baking, reducing manufacturing overhead. |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: 12 V battery-fed ECUs exposed to load dump (ISO 16750-2) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp surges before they reach LDOs and MCU power pins. Use Value: Limits peak rail voltage to ≤17.0 V during 600 W transients, preventing brownout reset or permanent damage to 5 V logic supplies. |
Use Scenario: Analog output lines (4–20 mA) from pressure sensors in factory automation systems. IC Role / Device Role / Timing Role: TVS mounted across signal and return lines to absorb ESD (IEC 61000-4-2 ±8 kV contact) and inductive kickback. Use Value: Sub-1 ns response time and <5 µA leakage preserve signal integrity and measurement accuracy over full temperature range. |
| USB 2.0 VBUS Line Protection | MOSFET Gate Driver Protection |
|
Use Scenario: Downstream USB ports in automotive infotainment head units subject to hot-plug transients and cable ESD. IC Role / Device Role / Timing Role: Unidirectional TVS on VBUS line referenced to GND, sized to handle 10/1000 µs surges without affecting 5 V regulation. Use Value: 10 V VWM allows full 5 V ±5% operation while clamping to 17.0 V - well below USB 2.0 VBUS absolute max (6.5 V) with margin for tolerance stack-up. |
Use Scenario: High-side N-channel MOSFET gates driven by PWM controllers in motor control inverters. IC Role / Device Role / Timing Role: TVS placed between gate and source to suppress Miller-induced voltage spikes during switching transitions. Use Value: Fast avalanche response prevents gate oxide breakdown during dV/dt events exceeding 50 V/ns, extending MOSFET lifetime. |
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_B/I | Same electrical specs, but RoHS-compliant commercial grade (non-AEC-Q101); no halogen-free certification. | Lacks automotive qualification; suitable for consumer/industrial designs not requiring AEC-Q101 traceability. | Select when cost sensitivity outweighs automotive qualification needs and halogen-free material is not mandated. |
| SMBJ10CAHM3_B/I | Bidirectional variant with same VWM (10 V), but symmetrical clamping in both polarities; VC = 17.0 V (same magnitude). | Required for AC-coupled or floating signal lines (e.g., RS-485, CAN bus) where polarity reversal occurs. | Choose only when bidirectional protection is needed; unidirectional SMBJ10AHM3_B/I offers lower leakage and tighter VBR tolerance for DC rails. |
Compared with SMBJ10AHE3_B/I, the SMBJ10AHM3_B/I adds halogen-free construction and AEC-Q101 qualification without sacrificing clamping performance; versus SMBJ10CAHM3_B/I, it provides superior DC bias stability and lower leakage for unidirectional power-line protection.
Availability
SMBJ10AHM3_B/I is available at Aetrix Electronics and suitable for automotive power input protection, industrial sensor interface hardening, USB VBUS line safeguarding, and MOSFET gate driver surge suppression requiring stable component supply across production lifecycles.
Supply support for SMBJ10AHM3_B/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, and protection devices with emphasis on reliability, precision, and automotive-grade validation.
The SMBJ series was engineered for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom infrastructure where AEC-Q101 compliance and repeatable clamping performance are mandatory.
FAQ
What is the maximum clamping voltage of SMBJ10AHM3_B/I at its rated peak pulse current?
The SMBJ10AHM3_B/I has a maximum clamping voltage (VC) of 17.0 V at its rated peak pulse current of 35.3 A (10/1000 µs waveform). This value is measured under standardized test conditions and defines the upper voltage limit imposed on protected circuitry during surge events. The SMBJ10AHM3_B/I maintains this clamping performance consistently due to its glass-passivated junction and low incremental surge resistance.
Is SMBJ10AHM3_B/I suitable for automotive applications?
Yes, SMBJ10AHM3_B/I is AEC-Q101 qualified and manufactured with halogen-free, RoHS-compliant materials - making it suitable for automotive applications including body electronics, infotainment systems, and ADAS sensor interfaces. Its operating junction temperature range of –55 °C to +150 °C and validated surge performance align with ISO 16750-2 and ISO 7637-2 requirements. The SMBJ10AHM3_B/I carries the HM3 suffix denoting full automotive qualification.
How does the VWM of 10 V affect system design with SMBJ10AHM3_B/I?
The 10 V stand-off voltage (VWM) of SMBJ10AHM3_B/I sets the maximum continuous reverse voltage the device tolerates without significant leakage - allowing safe integration on 12 V nominal power rails with ±10% tolerance. Designers must ensure normal operating voltage remains below 10 V to avoid premature conduction; this makes SMBJ10AHM3_B/I ideal for 12 V systems where transient headroom exists between VWM and VBR. The SMBJ10AHM3_B/I's 11.1–12.3 V VBR range provides controlled turn-on margin.
What is the thermal resistance of SMBJ10AHM3_B/I, and how does it impact PCB layout?
SMBJ10AHM3_B/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. This value assumes standard JEDEC test conditions and guides minimum pad sizing: reducing pad area increases RθJA, risking thermal runaway during repetitive surges. For high-duty-cycle applications, designers should use larger copper areas or internal planes to approach the RθJL = 20 °C/W lead-to-junction path. The SMBJ10AHM3_B/I's low RθJL supports efficient heat transfer through solder joints.
Does SMBJ10AHM3_B/I require special handling or storage due to moisture sensitivity?
No - SMBJ10AHM3_B/I is rated MSL Level 1 per J-STD-020, meaning it has unlimited floor life and can be processed using standard reflow profiles without pre-baking. Its molding compound meets UL 94 V-0 flammability rating, and matte tin-plated leads comply with J-STD-002 and JESD 22-B102 solderability standards. This simplifies manufacturing logistics and eliminates moisture-related yield loss. The SMBJ10AHM3_B/I's MSL Level 1 classification is confirmed in Vishay's official documentation for the HM3 suffix variants.
SMBJ10AHM3_B/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:
- Active
- 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_B/I FAQ
1.How can I place an order for SMBJ10AHM3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ10AHM3_B/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_B/I reliable?
The price and inventory of SMBJ10AHM3_B/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_B/I is usually 5 days.
3.What payment methods are accepted for SMBJ10AHM3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ10AHM3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ10AHM3_B/I?
SMBJ10AHM3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ10AHM3_B/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_B/I?
For technical support, including SMBJ10AHM3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ10AHM3_B/I requirements.
6.How does Aetrix verify that SMBJ10AHM3_B/I is sourced from the original manufacturer or authorized distributors?
All SMBJ10AHM3_B/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_B/I meets industry standards.
7.What is the process for return or replacement of SMBJ10AHM3_B/I?
All SMBJ10AHM3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ10AHM3_B/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_B/I part is unused and in its original packaging.
Return procedure for SMBJ10AHM3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ10AHM3_B/I Tags
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