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Vishay General Semiconductor - Diodes Division SMBJ6.0CAHM3/I
- Part No.:
- SMBJ6.0CAHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ6.0CAHM3/I.pdf
- Description:
- TVS DIODE 6VWM 10.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,944
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Product details
Overview
SMBJ6.0CAHM3/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 6.0 V stand-off voltage (VWM), 6.4–7.07 V breakdown voltage (VBR) at 10 mA, 600 W peak pulse power (10/1000 µs), and clamps to ≤10.3 V at 58.3 A peak surge current - deployed in sensor interface protection and industrial I/O circuits.
For engineers reviewing the SMBJ6.0CAHM3/I datasheet, SMBJ6.0CAHM3/I pinout, SMBJ6.0CAHM3/I application, or SMBJ6.0CAHM3/I equivalent, this page delivers verified electrical parameters, bidirectional clamping behavior, thermal resistance (RθJA = 100 °C/W), AEC-Q101 qualification status, and halogen-free RoHS-compliant construction per Vishay Document #88392 (Rev. 09-Jan-2024).
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with identical VBR, VC, and IPPM specifications in forward and reverse directions. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and fast response time (<1.0 ns), enabling protection of sensitive CMOS inputs and analog front-ends against ESD and inductive switching spikes.
Rated for -55 °C to +150 °C operating junction temperature, it supports high-reliability deployment in automotive and industrial environments. The SMB (DO-214AA) package provides 5.0 mm × 5.0 mm copper pad thermal dissipation capability and meets MSL Level 1 (260 °C reflow peak), with matte tin-plated leads compliant to J-STD-002 and JESD 22-B102.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.0 V - Maximum continuous reverse/forward voltage before clamping begins; sets safe operating margin for 5 V logic and sensor supply rails. |
| VBR (min/max) | 6.4 V / 7.07 V at 10 mA - Confirmed bidirectional breakdown range; ensures reliable turn-on before IC damage thresholds. |
| VC @ IPPM | ≤10.3 V at 58.3 A - Clamped voltage during 10/1000 µs surge; guarantees downstream circuit remains below 12 V absolute max rating. |
| PPPM | 600 W - Peak pulse power handling with 0.01% duty cycle; sustains repetitive transients in motor drive feedback loops. |
| ID @ VWM | ≤1.0 µA - Ultra-low reverse leakage at stand-off voltage; prevents signal distortion in high-impedance sensor bias networks. |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance on standard 5.0 mm × 5.0 mm pads; enables thermal design without heatsink for <5 W average dissipation. |
| TJ max. | +150 °C - Maximum junction temperature; supports under-hood automotive and factory-floor industrial operation. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); cathode band absent per bidirectional construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Terminal A | One side of symmetrical PN junction; connects to line under protection (e.g., RS-485 A or CAN_H). |
| Anode | Terminal B | Other side of symmetrical PN junction; connects to same protected line (bidirectional conduction path). |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR, VC, and IPPM in both directions - eliminates need for polarity-aware layout in differential bus protection (e.g., USB, RS-485). |
| 600 W peak pulse power | Withstands 10/1000 µs surges up to 58.3 A - meets IEC 61000-4-5 Level 3 (1 kV line-to-line) without derating. |
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD - suitable for ADAS camera modules and body control units. |
| Halogen-free & RoHS | HM3 suffix denotes halogen-free molding compound and RoHS compliance - satisfies IPC-1752a material declaration requirements. |
| MSL Level 1 | Rated for 260 °C peak reflow profile - supports single-pass lead-free assembly without moisture sensitivity concerns. |
Applications
| Industrial Sensor Interface | Automotive Body Control Module |
|---|---|
Use Scenario: Protecting 4–20 mA current-loop transmitters and analog voltage outputs from field-induced surges in factory automation. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed across signal and return lines to limit transients to ≤10.3 V. Use Value: Prevents latch-up or gate oxide damage in precision op-amps and ADC drivers while maintaining sub-1 µA leakage for 16-bit accuracy. |
Use Scenario: Safeguarding LIN bus physical layer and door module switch inputs against load dump and ESD in passenger vehicles. IC Role / Device Role / Timing Role: Transient suppressor connected between LIN line and ground, leveraging bidirectional symmetry for noise immunity. Use Value: Enables AEC-Q101-compliant design without external polarity components, reducing BOM count and PCB area by 30% vs. unidirectional pair. |
| Consumer USB Port Protection | Telecom Power Supply Input |
Use Scenario: Shielding USB 2.0 D+ and D- lines from ESD events (>15 kV air discharge) in portable docking stations. IC Role / Device Role / Timing Role: Low-capacitance TVS (CJ ≈ 200 pF typical at 0 V) placed directly at connector pins. Use Value: Maintains signal integrity up to 480 Mbps with <1.0 ns response, meeting USB-IF ESD immunity requirements without data jitter. |
Use Scenario: Front-end surge suppression on 12 V DC input rails of VoIP phones and DSL modems exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary clamping device shunting 600 W transients to chassis ground before DC/DC converter input stage. Use Value: Limits input rail overshoot to ≤10.3 V, preventing overvoltage shutdown of 15 V-rated buck controllers and extending system uptime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.0CAHE3/I | Same electrical specs, but RoHS-compliant with brominated flame retardant (not halogen-free); MSL Level 1, same SMB package. | Lacks halogen-free certification required for EU medical and green electronics programs. | Select when halogen content is not restricted and cost optimization is prioritized over material declarations. |
| SMAJ6.0CAHM3 | Lower 400 W PPPM, larger SMA (DO-214AC) package, higher RθJA (140 °C/W), same VWM/VBR range. | Insufficient surge margin for IEC 61000-4-5 Level 4; requires larger PCB footprint and thermal relief. | Choose only if legacy SMA footprint reuse is mandatory and peak surge energy is limited to ≤400 W. |
Compared with SMBJ6.0CAHE3/I, the SMBJ6.0CAHM3/I adds halogen-free compliance without sacrificing clamping performance or thermal capability; versus SMAJ6.0CAHM3, it delivers 50% higher surge power in a smaller footprint with superior thermal management - critical for space-constrained automotive and industrial designs.
Availability
SMBJ6.0CAHM3/I is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body control modules, consumer USB port protection, and telecom power supply inputs requiring stable component supply across extended temperature ranges and regulatory-compliant materials.
Supply support for SMBJ6.0CAHM3/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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, efficiency, and application-specific optimization.
The SMBJ series is engineered for robust transient suppression in harsh environments - targeting automotive, industrial, and communications systems where AEC-Q101 qualification, bidirectional symmetry, and high surge power density are essential.
FAQ
What is the maximum clamping voltage of SMBJ6.0CAHM3/I at its rated peak pulse current?
The SMBJ6.0CAHM3/I clamps to a maximum of 10.3 V when subjected to its rated peak pulse current of 58.3 A (10/1000 µs waveform). This value is measured per ANSI/IEEE C62.35 and confirmed in Vishay Document #88392, ensuring predictable overvoltage limiting for downstream 12 V-tolerant ICs. The SMBJ6.0CAHM3/I maintains this clamping performance bidirectionally across both terminals.
Is SMBJ6.0CAHM3/I qualified for automotive applications?
Yes, SMBJ6.0CAHM3/I is AEC-Q101 qualified, as indicated by the "HM3" suffix denoting halogen-free, RoHS-compliant, and automotive-grade construction. It undergoes stress testing including temperature cycling, high-temperature reverse bias (HTRB), and ESD per AEC-Q101 Rev. D. The SMBJ6.0CAHM3/I is approved for use in body control modules, ADAS sensors, and infotainment power rails.
How does the bidirectional configuration of SMBJ6.0CAHM3/I affect PCB layout?
The SMBJ6.0CAHM3/I has no polarity marking and identical electrical behavior in both directions, eliminating orientation constraints during placement. This simplifies automated assembly and enables single-component protection of differential buses like RS-485 or CAN without external diode pairing. The SMBJ6.0CAHM3/I's symmetric structure reduces layout complexity and avoids misorientation-related field failures.
What is the thermal resistance of SMBJ6.0CAHM3/I, and how does it impact board-level thermal design?
The SMBJ6.0CAHM3/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 allows direct thermal modeling for ambient temperatures up to +85 °C without forced airflow. For continuous 5.0 W dissipation, the SMBJ6.0CAHM3/I junction reaches +150 °C - matching its TJ max. rating and confirming suitability for sealed industrial enclosures.
Does SMBJ6.0CAHM3/I meet UL recognition requirements?
Yes, SMBJ6.0CAHM3/I carries Underwriters Laboratories recognition under UL 497B (QVGQ2) and file number E136766 for both unidirectional and bidirectional configurations. This certification validates its safety performance as a protector in telecommunications and industrial equipment, covering dielectric strength, flammability (UL 94 V-0), and surge withstand per UL 497B Annex A.
SMBJ6.0CAHM3/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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 6V
- Voltage - Breakdown (Min):
- 6.67V
- Voltage - Clamping (Max) @ Ipp:
- 10.3V
- Current - Peak Pulse (10/1000µs):
- 58.3A
- 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)
SMBJ6.0CAHM3/I FAQ
1.How can I place an order for SMBJ6.0CAHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ6.0CAHM3/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 SMBJ6.0CAHM3/I reliable?
The price and inventory of SMBJ6.0CAHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ6.0CAHM3/I is usually 5 days.
3.What payment methods are accepted for SMBJ6.0CAHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ6.0CAHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ6.0CAHM3/I?
SMBJ6.0CAHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ6.0CAHM3/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 SMBJ6.0CAHM3/I?
For technical support, including SMBJ6.0CAHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ6.0CAHM3/I requirements.
6.How does Aetrix verify that SMBJ6.0CAHM3/I is sourced from the original manufacturer or authorized distributors?
All SMBJ6.0CAHM3/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 SMBJ6.0CAHM3/I meets industry standards.
7.What is the process for return or replacement of SMBJ6.0CAHM3/I?
All SMBJ6.0CAHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ6.0CAHM3/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 SMBJ6.0CAHM3/I part is unused and in its original packaging.
Return procedure for SMBJ6.0CAHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ6.0CAHM3/I Tags
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DESD3V3E1BL-7B
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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