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Vishay General Semiconductor - Diodes Division SMBJ10CAHM3_B/I
- Part No.:
- SMBJ10CAHM3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ10CAHM3_B/I.pdf
- Description:
- 600W,10V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:7,456
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Product details
Overview
SMBJ10CAHM3_B/I from Vishay General Semiconductor is a bidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on signal and power lines. It features a 10 V stand-off voltage (VWM), 17.0 V maximum clamping voltage at 35.3 A peak pulse current (IPPM), and 600 W peak pulse power rating with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor signal lines in industrial and telecom equipment.
For engineers reviewing the SMBJ10CAHM3_B/I datasheet, SMBJ10CAHM3_B/I pinout, SMBJ10CAHM3_B/I application, or SMBJ10CAHM3_B/I equivalent, key selection criteria include bidirectional surge suppression capability, low clamping ratio (VC/VWM = 1.7), AEC-Q101 qualification status, and halogen-free RoHS compliance per HM3 suffix.
Technical Context
This device operates as a voltage-clamped crowbar during ESD or lightning-induced surges, leveraging an avalanche breakdown junction to divert transient energy away from protected circuitry. Its bidirectional symmetry ensures identical clamping behavior in both polarities, eliminating polarity sensitivity in AC-coupled or differential signal paths.
The SMBJ10CAHM3_B/I exhibits a typical thermal resistance of 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead), enabling reliable operation up to 150 °C junction temperature. It meets MSL Level 1 per J-STD-020 with peak reflow temperature of 260 °C, supporting standard SMT assembly processes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - maximum continuous reverse operating voltage before clamping initiates |
| VBR min/max | 11.1 V / 12.3 V at 1.0 mA test current - guaranteed breakdown onset range for bidirectional conduction |
| VC @ IPPM | 17.0 V at 35.3 A - clamping voltage under 10/1000 µs surge, limiting downstream voltage stress |
| PPPM | 600 W - peak transient power handling capacity without failure under standardized waveform |
| ID @ VWM | 5.0 µA - low leakage current ensuring minimal standby power loss and signal integrity |
| TJ max | +150 °C - maximum junction temperature enabling use in high-ambient industrial environments |
| Package | SMB (DO-214AA) - industry-standard 2-pin surface-mount outline with 5.21 mm × 4.06 mm footprint |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking. Terminals are matte tin-plated leads, solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative half-cycle) | Accepts surge current during negative polarity events; symmetrical with cathode for bidirectional operation |
| Cathode | Transient current entry (positive half-cycle) | Accepts surge current during positive polarity events; functionally identical to anode in bidirectional mode |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR and VC performance in both directions - eliminates need for polarity-aware layout in AC or differential lines |
| 600 W peak pulse power | Withstands IEC 61000-4-5 Level 4 surge (4 kV line-earth) when properly mounted on 5.0 mm × 5.0 mm copper pads |
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - suitable for under-hood and infotainment systems |
| Halogen-free & RoHS-compliant | HM3 suffix confirms compliance with JEDEC J-STD-201 Class 2 whisker resistance and EU RoHS Directive 2011/65/EU |
| Low clamping ratio | VC/VWM = 1.7 - minimizes overvoltage exposure to protected ICs compared to higher-ratio TVS devices |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
Use Scenario: Protection of gate drivers and microcontroller I/O against inductive kickback from relay coils and solenoid switching. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed across relay coil or MOSFET gate-source terminals. Use Value: Limits transient spikes to ≤17.0 V, preventing latch-up or oxide damage in 3.3 V/5 V logic interfaces. |
Use Scenario: Surge protection on LIN bus lines and sensor inputs (e.g., ambient temperature, door position) in BCM assemblies. IC Role / Device Role / Timing Role: Primary TVS element on each LIN node, positioned between connector and transceiver IC. Use Value: Withstands ISO 7637-2 Pulse 1 (−100 V, 2 Ω source) and Pulse 2a (+100 V) without degradation. |
| Telecom Power Supply Inputs | Consumer IoT Sensor Nodes |
Use Scenario: Input-stage protection on 12 V DC power rails feeding PoE-powered switches and base station controllers. IC Role / Device Role / Timing Role: First-line defense against lightning-induced surges entering via AC/DC adapter or Ethernet cable. Use Value: Clamps 600 W transients within 1 ns response time, preserving upstream DC-DC converter and load switch integrity. |
Use Scenario: ESD hardening of analog sensor outputs (e.g., humidity, motion) connected to MCU ADC inputs in smart home hubs. IC Role / Device Role / Timing Role: Localized TVS at sensor connector or PCB edge, shunting ±15 kV contact discharge per IEC 61000-4-2. Use Value: Maintains <5 µA leakage at 10 V, avoiding measurement offset in µA-range sensor bias networks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10CAHE3_B/I | Same electrical specs; RoHS-compliant but not halogen-free (E3 vs HM3) | Lacks halogen-free certification required for some automotive Tier 1 supply chains | Select when halogen-free material is not mandated and cost optimization is prioritized |
| SMAJ10CAHM3_A/I | Lower PPPM (400 W), smaller SMA package (DO-214AC), higher RθJA (140 °C/W) | Reduced surge margin and thermal derating - unsuitable for high-reliability 600 W surge environments | Choose only for space-constrained designs where full 600 W rating is not required |
Compared with SMBJ10CAHE3_B/I and SMAJ10CAHM3_A/I, the SMBJ10CAHM3_B/I uniquely combines AEC-Q101 qualification, halogen-free construction, and full 600 W surge capability in the robust SMB outline - making it the preferred choice for automotive and industrial applications demanding verified long-term reliability under repetitive transients.
Availability
SMBJ10CAHM3_B/I is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, and telecom power supply inputs requiring stable component supply with full traceability and lifecycle management.
Supply support for SMBJ10CAHM3_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, MOSFETs, and protection devices with emphasis on high-reliability, automotive-qualified, and AEC-Q101-compliant components.
The SMBJ series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for robust transient suppression in harsh environments - targeting industrial automation, automotive electronics, and infrastructure equipment where surge immunity is mission-critical.
FAQ
What does the "CA" suffix indicate in SMBJ10CAHM3_B/I?
The "CA" suffix denotes a bidirectional configuration: SMBJ10CAHM3_B/I provides symmetrical clamping for both positive and negative voltage transients, unlike unidirectional variants (e.g., SMBJ10AHM3_B/I) that conduct only in reverse bias. This enables use on AC lines, differential buses, or polarity-agnostic signal paths without orientation constraints.
Is SMBJ10CAHM3_B/I qualified for automotive applications?
Yes, SMBJ10CAHM3_B/I is AEC-Q101 qualified, as confirmed by the HM3 suffix and Vishay documentation. It undergoes stress testing including temperature cycling, highly accelerated life testing (HALT), and ESD verification per JESD22-A114, making it suitable for under-hood and cabin electronics in passenger vehicles and commercial fleets.
What is the maximum clamping voltage of SMBJ10CAHM3_B/I under surge conditions?
The maximum clamping voltage (VC) of SMBJ10CAHM3_B/I is 17.0 V at 35.3 A peak pulse current (IPPM), measured with a 10/1000 µs waveform. This value is guaranteed across temperature and lifetime, ensuring downstream ICs see no more than 17.0 V during standardized surge events.
How does the HM3 suffix differ from E3 in Vishay SMBJ part numbering?
The HM3 suffix in SMBJ10CAHM3_B/I indicates halogen-free, RoHS-compliant construction meeting JEDEC J-STD-201 Class 2 whisker resistance, whereas E3 denotes RoHS compliance without halogen-free assurance. Both meet MSL Level 1 and 260 °C reflow, but HM3 satisfies stricter environmental requirements for automotive and green-electronics programs.
Can SMBJ10CAHM3_B/I be used in place of SMBJ10A or SMBJ10AHM3_B/I?
No - SMBJ10CAHM3_B/I is bidirectional, while SMBJ10A and SMBJ10AHM3_B/I are unidirectional and conduct only in reverse bias. Substituting without circuit review risks failure during positive-going transients. The "CA" designation is functionally distinct and not interchangeable with "A"-suffixed variants.
SMBJ10CAHM3_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:
- -
- Bidirectional Channels:
- 1
- 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)
SMBJ10CAHM3_B/I FAQ
1.How can I place an order for SMBJ10CAHM3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ10CAHM3_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 SMBJ10CAHM3_B/I reliable?
The price and inventory of SMBJ10CAHM3_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 SMBJ10CAHM3_B/I is usually 5 days.
3.What payment methods are accepted for SMBJ10CAHM3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ10CAHM3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ10CAHM3_B/I?
SMBJ10CAHM3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ10CAHM3_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 SMBJ10CAHM3_B/I?
For technical support, including SMBJ10CAHM3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ10CAHM3_B/I requirements.
6.How does Aetrix verify that SMBJ10CAHM3_B/I is sourced from the original manufacturer or authorized distributors?
All SMBJ10CAHM3_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 SMBJ10CAHM3_B/I meets industry standards.
7.What is the process for return or replacement of SMBJ10CAHM3_B/I?
All SMBJ10CAHM3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ10CAHM3_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 SMBJ10CAHM3_B/I part is unused and in its original packaging.
Return procedure for SMBJ10CAHM3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ10CAHM3_B/I Tags
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