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Vishay General Semiconductor - Diodes Division SMBJ6.5CAHM3_B/H
- Part No.:
- SMBJ6.5CAHM3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ6.5CAHM3_B/H.pdf
- Description:
- 600W,6.5V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:4,658
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Product details
Overview
SMBJ6.5CAHM3_B/H 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 or power lines. It features a 6.5 V stand-off voltage (VWM), 7.22–7.98 V breakdown voltage (VBR) at 10 mA, 600 W peak pulse power (10/1000 µs), and clamps to ≤11.2 V at 53.6 A peak surge current - ideal for protecting MOSFET gates and sensor I/O in industrial motor drives.
For engineers reviewing the SMBJ6.5CAHM3_B/H datasheet, SMBJ6.5CAHM3_B/H pinout, SMBJ6.5CAHM3_B/H application, or SMBJ6.5CAHM3_B/H equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification status, halogen-free RoHS compliance, thermal resistance (RθJA = 100 °C/W), and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This device operates as a voltage-clamped crowbar during ESD or lightning-induced surges, leveraging an avalanche breakdown mechanism across both polarities. Its bidirectional symmetry ensures identical clamping behavior for positive and negative transients without polarity dependence.
Designed for low-inductance PCB layouts, it delivers sub-nanosecond response time and low incremental surge resistance (<0.2 Ω typical), enabling effective suppression of fast-rising transients up to 53.6 A (10/1000 µs). The glass-passivated junction and MSL Level 1 rating support robust reflow soldering at 260 °C peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.5 V - maximum continuous reverse operating voltage before conduction begins |
| VBR min/max | 7.22 V / 7.98 V at 10 mA - guaranteed avalanche onset range under standardized test conditions |
| VC @ IPPM | ≤11.2 V at 53.6 A - clamped voltage during worst-case 10/1000 µs surge, defining protection margin |
| PPPM | 600 W - peak transient energy handling capacity per single 10/1000 µs pulse |
| ID @ VWM | ≤500 µA - leakage current level that minimally loads protected circuitry at rated stand-off |
| RθJA | 100 °C/W - thermal resistance from junction to ambient on standard 0.2" × 0.2" copper pads |
| TJ max | +150 °C - maximum allowable junction temperature for reliable long-term operation |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, RoHS-compliant, matte tin-plated leads. No polarity marking for bidirectional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative polarity) | Conducts during negative-going surges; connects to line being protected |
| Cathode | Transient current entry (positive polarity) | Conducts during positive-going surges; connects to line being protected |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns |
| 600 W peak pulse power | Supports IEC 61000-4-5 Level 4 surge immunity (4 kV line-to-earth) with margin |
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| MSL Level 1 | Allows unlimited floor life and standard reflow profile up to 260 °C peak without baking |
| Low-profile SMB package | 0.220" × 0.155" footprint enables dense layout while maintaining >1.5 mm creepage/clearance |
Applications
| Industrial Motor Drive Control | Automotive Body Control Module (BCM) |
|---|---|
|
Use Scenario: Protecting gate drivers and feedback sensing lines from inductive kickback during MOSFET switching in 24 V DC motor controllers. IC Role / Device Role / Timing Role: Voltage-clamping TVS placed directly across gate-source or supply-rail inputs of driver ICs. Use Value: Limits transient overshoot to ≤11.2 V, preventing gate oxide rupture in logic-level MOSFETs rated for 12 V max VGS. |
Use Scenario: Safeguarding LIN bus transceivers and microcontroller I/O pins against load dump and jump-start transients in vehicle door modules. IC Role / Device Role / Timing Role: Bidirectional clamping element on LIN data line and VCC rail, referenced to chassis ground. Use Value: Withstands repetitive 10/1000 µs pulses up to 600 W, meeting ISO 7637-2 Pulse 1/2/5a requirements without derating. |
| Industrial Sensor Interface Board | Telecom Power Supply Input Stage |
|
Use Scenario: Shielding analog front-end amplifiers and ADC reference inputs from ESD events on 4–20 mA loop terminals. IC Role / Device Role / Timing Role: Low-leakage (≤500 µA) TVS placed at connector entry point before signal conditioning stage. Use Value: Maintains <1 µA total input bias error contribution while clamping 8 kV contact ESD per IEC 61000-4-2. |
Use Scenario: Front-end overvoltage protection for 48 V telecom rectifier outputs exposed to lightning-induced surges on outdoor plant wiring. IC Role / Device Role / Timing Role: Primary clamping device upstream of DC-DC converters and hot-swap controllers. Use Value: Delivers 53.6 A surge current handling with ≤11.2 V clamping, preserving downstream 50 V-rated components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.5CAHE3_B/H | RoHS-compliant but not halogen-free; same electrical specs and AEC-Q101 qualification | Acceptable where halogen content is unrestricted (e.g., non-automotive industrial use) | Select when cost sensitivity outweighs halogen-free requirement and automotive qualification is still needed |
| SMAJ6.5CAHM3 | Lower PPPM (400 W), smaller SMA package (DO-214AC), higher RθJA (140 °C/W) | Limited to lower-energy transients; unsuitable for IEC 61000-4-5 Level 4 or automotive load dump | Choose only for space-constrained designs with verified <400 W surge exposure and no AEC-Q101 mandate |
Compared with SMBJ6.5CAHE3_B/H, the SMBJ6.5CAHM3_B/H adds halogen-free compliance without sacrificing performance; versus SMAJ6.5CAHM3, it provides +50 % surge power headroom and superior thermal dissipation for mission-critical protection.
Availability
SMBJ6.5CAHM3_B/H is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, and telecom power supply input stages requiring stable component supply with full traceability and lifecycle management.
Supply support for SMBJ6.5CAHM3_B/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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and high-volume manufacturability.
The SMBJ series targets board-level transient protection in automotive, industrial, and telecom systems, with design focus on high-power clamping, AEC-Q101 compliance, and seamless SMT integration.
FAQ
What is the clamping voltage of SMBJ6.5CAHM3_B/H at its rated peak pulse current?
The SMBJ6.5CAHM3_B/H clamps to a maximum of 11.2 V when subjected to its rated peak pulse current of 53.6 A under the standard 10/1000 µs waveform. This value is measured per JEDEC test conditions and defines the upper voltage limit imposed on protected circuitry during surge events. The SMBJ6.5CAHM3_B/H maintains this clamping performance across its full operating temperature range.
Is SMBJ6.5CAHM3_B/H suitable for automotive applications?
Yes, SMBJ6.5CAHM3_B/H is AEC-Q101 qualified and specifically designed for automotive use cases including body control modules and infotainment power rails. Its halogen-free construction, MSL Level 1 rating, and validated performance across -55 °C to +150 °C junction temperature meet stringent automotive reliability requirements. The SMBJ6.5CAHM3_B/H carries the HM3 suffix denoting halogen-free and AEC-Q101 compliance.
How does the bidirectional configuration of SMBJ6.5CAHM3_B/H affect its circuit implementation?
The bidirectional configuration of SMBJ6.5CAHM3_B/H eliminates polarity marking and allows symmetric placement across any two-node interface - such as differential signal pairs, AC-coupled lines, or floating power domains. Unlike unidirectional TVS diodes, it conducts during both positive and negative transients without requiring external biasing or orientation checks. The SMBJ6.5CAHM3_B/H achieves this via back-to-back avalanche junctions in a single SMB package.
What is the maximum leakage current of SMBJ6.5CAHM3_B/H at its stand-off voltage?
The SMBJ6.5CAHM3_B/H exhibits a maximum reverse leakage current (ID) of 500 µA when biased at its 6.5 V stand-off voltage (VWM) and tested at 25 °C. This low leakage ensures minimal loading of sensitive analog circuits or high-impedance sensor interfaces. The SMBJ6.5CAHM3_B/H maintains leakage below 1 mA even at elevated temperatures up to 125 °C per datasheet characterization.
Can SMBJ6.5CAHM3_B/H be used in place of a unidirectional TVS like SMBJ6.5A?
No - SMBJ6.5CAHM3_B/H is strictly bidirectional and cannot replace unidirectional devices like SMBJ6.5A in circuits requiring DC blocking or polarity-specific clamping, such as DC power rail protection with cathode-to-rail configuration. Substituting SMBJ6.5CAHM3_B/H for SMBJ6.5A would eliminate intended forward conduction path and compromise protection integrity. Always verify polarity requirements before selecting SMBJ6.5CAHM3_B/H.
SMBJ6.5CAHM3_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 6.5V
- Voltage - Breakdown (Min):
- 7.22V
- Voltage - Clamping (Max) @ Ipp:
- 11.2V
- Current - Peak Pulse (10/1000µs):
- 53.6A
- 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)
SMBJ6.5CAHM3_B/H FAQ
1.How can I place an order for SMBJ6.5CAHM3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ6.5CAHM3_B/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 SMBJ6.5CAHM3_B/H reliable?
The price and inventory of SMBJ6.5CAHM3_B/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ6.5CAHM3_B/H is usually 5 days.
3.What payment methods are accepted for SMBJ6.5CAHM3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ6.5CAHM3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ6.5CAHM3_B/H?
SMBJ6.5CAHM3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ6.5CAHM3_B/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 SMBJ6.5CAHM3_B/H?
For technical support, including SMBJ6.5CAHM3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ6.5CAHM3_B/H requirements.
6.How does Aetrix verify that SMBJ6.5CAHM3_B/H is sourced from the original manufacturer or authorized distributors?
All SMBJ6.5CAHM3_B/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 SMBJ6.5CAHM3_B/H meets industry standards.
7.What is the process for return or replacement of SMBJ6.5CAHM3_B/H?
All SMBJ6.5CAHM3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ6.5CAHM3_B/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 SMBJ6.5CAHM3_B/H part is unused and in its original packaging.
Return procedure for SMBJ6.5CAHM3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ6.5CAHM3_B/H Tags
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