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Vishay General Semiconductor - Diodes Division SMBJ10AHM3_A/H
- Part No.:
- SMBJ10AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ10AHM3_A/H.pdf
- Description:
- TVS DIODE 10VWM 17VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,435
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Product details
Overview
SMBJ10AHM3_A/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping fast-rising ESD and surge transients on power and signal lines. It features 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 (IPPM), and 600 W peak pulse power (10/1000 µs waveform), commonly deployed to protect MOSFET gates and sensor I/O in industrial motor drives.
For engineers reviewing the SMBJ10AHM3_A/H datasheet, SMBJ10AHM3_A/H pinout, SMBJ10AHM3_A/H application, or SMBJ10AHM3_A/H equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), junction temperature range (−55 to +150 °C), and halogen-free RoHS-compliant construction per JESD201 Class 2 whisker test.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-banded polarity, leveraging glass-passivated silicon junction technology for stable reverse leakage (<5.0 µA at VWM) and sub-nanosecond response time. Its low incremental surge resistance ensures minimal voltage overshoot during 10/1000 µs transients.
The SMBJ10AHM3_A/H is rated for 5.0 W steady-state power dissipation at TA = 50 °C and supports 100 A non-repetitive forward surge current (IFSM, 8.3 ms half-sine), making it suitable for high-energy transient suppression in DC bus and input stage protection where thermal management relies on PCB copper pad area (0.2" × 0.2") per terminal.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working margin for 12 V rail protection. |
| VBR (min/max) | 11.1 V / 12.3 V at IT = 1 mA - Confirmed breakdown threshold range; ensures reliable triggering above system nominal voltage. |
| VC @ IPPM | 17.0 V at 35.3 A - Clamped voltage under 600 W 10/1000 µs surge; limits downstream IC stress to safe levels. |
| PPPM | 600 W - Peak pulse power handling capability; validates robustness against IEC 61000-4-5 Level 4 surges. |
| TJ max. | +150 °C - Maximum junction temperature; enables operation in under-hood automotive and industrial ambient environments. |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance; informs minimum required PCB copper area for thermal reliability. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with 0.205" × 0.130" footprint; compatible with automated pick-and-place. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, cathode-indicated by band. Terminals are matte tin-plated, solderable per J-STD-002 and JESD22-B102. Molding compound meets UL 94 V-0.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path (unidirectional) | Connected to lower-potential side of protected line; conducts during forward surge events (e.g., reverse polarity fault). |
| Cathode | Clamping reference node | Banded end; tied to higher-potential rail (e.g., VCC); initiates avalanche breakdown when reverse voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - supports under-hood and ADAS module deployment. |
| Halogen-free & RoHS-compliant (HM3 suffix) | Meets IPC-1752A material declaration requirements and JEDEC J-STD-020 MSL Level 1 - enables lead-free reflow up to 260 °C peak. |
| 600 W peak pulse power (10/1000 µs) | Withstands repeated lightning-induced surges per IEC 61000-4-5 without degradation - critical for industrial PLC I/O protection. |
| Low clamping ratio (VC/VBR ≈ 1.5) | 17.0 V clamping at 11.1 V min VBR yields tight overvoltage control - protects 12 V logic interfaces without overdesigning downstream TVS stages. |
| Fast response time (<1 ns) | Sub-nanosecond avalanche initiation prevents ESD damage to sensitive gate oxides in MOSFET drivers and microcontroller pins. |
Applications
| Industrial Motor Drive Input Protection | Automotive Body Control Module (BCM) Power Rail |
|---|---|
|
Use Scenario: Suppresses inductive kickback from relay coils and solenoid drivers on 24 V DC input rails. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VIN and GND to clamp transients before they reach DC-DC converter input. Use Value: Limits voltage excursion to ≤17.0 V during 35.3 A surges, preventing latch-up or burnout in buck controller ICs. |
Use Scenario: Protects 12 V supply lines feeding microcontrollers and CAN transceivers in door modules and lighting nodes. IC Role / Device Role / Timing Role: Standoff-rated clamping device absorbing load-dump and jump-start transients per ISO 7637-2 Pulse 5a. Use Value: AEC-Q101 qualification and 150 °C TJ rating ensure uninterrupted operation during engine compartment thermal cycling. |
| Consumer Appliance Sensor Interface Protection | Telecom PoE Midspan Data Line Clamp |
|
Use Scenario: Shields analog output pins of temperature/humidity sensors connected to HVAC control boards from ESD events. IC Role / Device Role / Timing Role: Low-leakage (≤5.0 µA at 10 V) unidirectional suppressor placed directly at connector entry point. Use Value: Sub-1 ns response prevents ESD-induced data corruption or sensor calibration drift in 10-bit ADC front-ends. |
Use Scenario: Clamps common-mode surges induced on Ethernet pairs in IEEE 802.3af/at midspan injectors. IC Role / Device Role / Timing Role: Paired unidirectional TVS devices (one per conductor) referenced to local ground plane. Use Value: 600 W rating handles combined differential + common-mode surge energy without thermal runaway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10AHE3_A/H | RoHS-compliant but not halogen-free; same VWM, VBR, VC, and PPPM ratings. | Lacks halogen-free certification; unsuitable for strict environmental compliance programs (e.g., EU automotive Tier 1). | Select when halogen content is not restricted and cost optimization is prioritized over material declarations. |
| SMBJ10CAHM3_A/H | Bidirectional variant with symmetric clamping; VBR = 11.1–12.3 V in both directions; no polarity marking. | Used where AC-coupled or dual-polarity signals require symmetrical transient suppression (e.g., RS-485, USB D+/D−). | Choose only if bidirectional clamping is required; unidirectional SMBJ10AHM3_A/H offers tighter leakage and lower capacitance for DC rails. |
Compared with SMBJ10AHE3_A/H, the SMBJ10AHM3_A/H adds halogen-free compliance without sacrificing electrical performance; versus SMBJ10CAHM3_A/H, it provides superior reverse leakage control and polarity-specific clamping for DC power line protection.
Availability
SMBJ10AHM3_A/H is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, consumer appliance sensor interfaces, and telecom PoE midspan designs requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMBJ10AHM3_A/H 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, efficiency, and application-specific optimization.
The SMBJ series is engineered for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom systems where robustness against ESD, lightning, and inductive switching is mission-critical.
FAQ
What is the maximum clamping voltage of SMBJ10AHM3_A/H under a 10/1000 µs surge?
The SMBJ10AHM3_A/H has a maximum clamping voltage (VC) of 17.0 V when subjected to its rated peak pulse current of 35.3 A using the standard 10/1000 µs waveform. This value is measured at the device terminals under defined test conditions (TA = 25 °C, mounted on 0.2" × 0.2" copper pads) and represents the upper voltage limit imposed on protected circuitry during surge events. The SMBJ10AHM3_A/H maintains this clamping performance across its operational temperature range.
Is SMBJ10AHM3_A/H qualified for automotive applications?
Yes, SMBJ10AHM3_A/H is AEC-Q101 qualified, confirming its suitability for automotive electronic systems. The HM3 suffix denotes halogen-free, RoHS-compliant construction validated to AEC-Q101 stress tests including temperature cycling, highly accelerated life testing (HALT), and ESD robustness. This makes SMBJ10AHM3_A/H appropriate for use in body control modules, infotainment power supplies, and ADAS sensor interfaces where reliability under thermal and mechanical stress is mandatory.
What does the "HM3" suffix indicate in SMBJ10AHM3_A/H?
The "HM3" suffix in SMBJ10AHM3_A/H specifies halogen-free, RoHS-compliant construction meeting JESD201 Class 2 whisker resistance and J-STD-020 MSL Level 1 moisture sensitivity. Unlike the "E3" suffix (RoHS only), "HM3" ensures zero brominated flame retardants and chlorine content below regulatory thresholds - required for compliance in EU automotive and green electronics programs. The "_A/H" denotes packaging configuration: 7" tape-and-reel, 750 units per reel.
How does SMBJ10AHM3_A/H differ from bidirectional SMBJ10CAHM3_A/H?
SMBJ10AHM3_A/H is unidirectional with cathode band marking and asymmetric conduction (forward-biased anode-to-cathode), while SMBJ10CAHM3_A/H is bidirectional with no polarity marking and identical clamping in both directions. The SMBJ10AHM3_A/H exhibits lower reverse leakage (≤5.0 µA at 10 V) and is optimized for DC power rail protection; SMBJ10CAHM3_A/H suits AC-coupled or differential signal lines like RS-485 or CAN where polarity reversal occurs. They are not pin-compatible replacements.
What is the thermal resistance and recommended PCB layout for SMBJ10AHM3_A/H?
SMBJ10AHM3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on minimum recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To maintain reliability under sustained power dissipation, designers must provide adequate copper area and avoid thermal isolation. The SMBJ10AHM3_A/H is rated for 5.0 W at TA = 50 °C, so board-level thermal design directly impacts maximum allowable surge repetition rate and long-term stability.
SMBJ10AHM3_A/H 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/H FAQ
1.How can I place an order for SMBJ10AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ10AHM3_A/H 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/H reliable?
The price and inventory of SMBJ10AHM3_A/H 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/H is usually 5 days.
3.What payment methods are accepted for SMBJ10AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ10AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ10AHM3_A/H?
SMBJ10AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ10AHM3_A/H 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/H?
For technical support, including SMBJ10AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ10AHM3_A/H requirements.
6.How does Aetrix verify that SMBJ10AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All SMBJ10AHM3_A/H 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/H meets industry standards.
7.What is the process for return or replacement of SMBJ10AHM3_A/H?
All SMBJ10AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ10AHM3_A/H, 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/H part is unused and in its original packaging.
Return procedure for SMBJ10AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ10AHM3_A/H Tags
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