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Vishay General Semiconductor - Diodes Division SMBJ6.0CAHM3_A/I
- Part No.:
- SMBJ6.0CAHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ6.0CAHM3_A/I.pdf
- Description:
- TVS DIODE 6VWM 10.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,203
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Product details
Overview
SMBJ6.0CAHM3_A/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 6.4 V minimum breakdown voltage (VBR), 6.0 V maximum stand-off voltage (VWM), 600 W peak pulse power (10/1000 µs), 58.3 A peak pulse current (IPPM), and 10.3 V maximum clamping voltage (VC) - deployed in industrial sensor interfaces and telecom line protection.
For engineers reviewing the SMBJ6.0CAHM3_A/I datasheet, SMBJ6.0CAHM3_A/I pinout, SMBJ6.0CAHM3_A/I application, or SMBJ6.0CAHM3_A/I equivalent, this page delivers verified electrical parameters, bidirectional clamping behavior, AEC-Q101-qualified halogen-free construction, thermal resistance (RθJA = 100 °C/W), and real-world use cases in automotive-grade ESD/surge protection circuits.
Technical Context
This device operates as a bidirectional avalanche diode with symmetrical clamping in both polarities, enabling transient suppression without polarity sensitivity. Its glass-passivated junction ensures stable VBR tolerance (±5% typical), low incremental surge resistance, and fast response time (<1 ns) to ESD and lightning-induced surges.
Rated for -55 °C to +150 °C operating junction temperature, it supports repetitive surge duty cycles up to 0.01% at 25 °C ambient, with derating above TA = 25 °C per Fig. 2. The SMBJ6.0CAHM3_A/I meets MSL Level 1 (JEDEC J-STD-020) and is halogen-free, RoHS-compliant, and AEC-Q101 qualified per ordering suffix HM3.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 6.4 V / 7.07 V at IT = 10 mA - defines reliable avalanche initiation threshold under bidirectional stress |
| VWM | 6.0 V - maximum continuous reverse voltage before leakage exceeds 800 µA, ensuring no conduction during normal operation |
| VC @ IPPM | 10.3 V at 58.3 A (10/1000 µs) - clamping voltage limiting downstream IC voltage exposure during surge events |
| PPPM | 600 W - peak transient energy absorption capability compatible with IEC 61000-4-5 Level 4 surge testing |
| IPPM | 58.3 A - peak surge current handling capacity with defined waveform, critical for 24 V industrial bus protection |
| RθJA | 100 °C/W - thermal resistance from junction to ambient on standard 0.2" × 0.2" copper pads, guiding PCB thermal layout |
| TJ max. | +150 °C - maximum junction temperature enabling operation in under-hood automotive environments |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, matte tin-plated leads, MSL Level 1 compliant. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (bidirectional) | Acts as cathode in negative half-cycle; forms symmetrical clamping path with cathode terminal |
| Cathode | Transient current exit (bidirectional) | Acts as anode in negative half-cycle; enables bidirectional surge shunting without polarity marking |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity constraints |
| 600 W peak pulse power (10/1000 µs) | Supports IEC 61000-4-5 surge immunity up to 4 kV (line-to-earth) in 2 Ω/12 Ω source impedance configurations |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive applications including body control modules and infotainment interface protection |
| Halogen-free & RoHS-compliant | Meets environmental compliance requirements for EU, China RoHS, and JEITA-MITI standards |
| Low clamping ratio (VC/VWM ≈ 1.72) | Minimizes overvoltage stress on protected ICs compared to higher-ratio TVS devices |
Applications
| Industrial Sensor Interface Protection | Automotive CAN Bus Line Protection |
|---|---|
|
Use Scenario: Protecting 4–20 mA current-loop sensors and RS-485 transceivers from inductive switching spikes and ESD in factory automation systems. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed across differential signal pair (A/B) or supply rail (VCC/GND). Use Value: Limits transient voltage to ≤10.3 V, preventing latch-up or gate oxide damage in analog front-end ICs and communication PHYs. |
Use Scenario: Safeguarding CAN FD transceivers (e.g., TJA1044, SN65HVD256) against load dump and ISO 7637-2 pulses in vehicle ECUs. IC Role / Device Role / Timing Role: Parallel-connected TVS between CAN_H and CAN_L lines, referenced to chassis ground via common-mode choke. Use Value: Clamps common-mode surges to <11 V while maintaining signal integrity due to low capacitance (<100 pF at 0 V) and fast response. |
| Telecom DSL/ADSL Line Protection | Consumer USB Port ESD Protection |
|
Use Scenario: Shielding ADSL line drivers and SLICs from lightning-induced surges on twisted-pair telephone lines. IC Role / Device Role / Timing Role: Primary-level protector mounted at line entry point, upstream of gas discharge tube (GDT) secondary stage. Use Value: Absorbs initial 600 W surge energy within nanoseconds, reducing GDT follow-on current stress and extending system lifetime. |
Use Scenario: Adding robust ±15 kV contact / ±20 kV air ESD protection to USB 2.0 data lines (D+/D−) in set-top boxes and smart displays. IC Role / Device Role / Timing Role: Low-capacitance bidirectional TVS placed directly at USB connector, before series impedance matching resistors. Use Value: Prevents ESD-induced data corruption or PHY reset by clamping transients below 10.3 V without distorting 480 Mbps signaling waveforms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.0CAHE3_A/I | Same electrical specs, but RoHS-compliant commercial grade (not AEC-Q101 qualified); uses standard SnPb-free matte tin plating | Lacks automotive qualification; suitable for industrial/commercial designs where AEC-Q101 is not mandated | Select when cost-sensitive non-automotive applications require identical clamping performance without automotive validation overhead |
| SMAJ6.0CAHM3_A/I | Lower peak pulse power (400 W vs. 600 W); same VBR, VWM, VC; SMA (DO-214AC) package with smaller footprint (4.32 mm × 2.62 mm) | Reduced surge margin; limited to lower-energy threats (e.g., IEC 61000-4-2 ESD only, not full IEC 61000-4-5) | Choose when board space is constrained and surge threat level is limited to ESD or low-energy transients |
Compared with SMBJ6.0CAHE3_A/I, the SMBJ6.0CAHM3_A/I adds AEC-Q101 qualification and halogen-free compliance for automotive use; versus SMAJ6.0CAHM3_A/I, it delivers 50% higher surge energy handling in a slightly larger SMB package - critical for high-reliability industrial and automotive power-line protection.
Availability
SMBJ6.0CAHM3_A/I is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive CAN bus protection, telecom line surge suppression, and consumer USB port ESD hardening requiring stable component supply and long-term lifecycle support.
Supply support for SMBJ6.0CAHM3_A/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 reliability, efficiency, and application-specific optimization.
The SMBJ series targets high-energy transient suppression in harsh environments, engineered for automotive, industrial, and telecom applications where robustness, low clamping voltage, and AEC-Q101 compliance are mandatory design requirements.
FAQ
What does the 'CA' suffix mean in SMBJ6.0CAHM3_A/I?
The 'CA' suffix denotes a bidirectional configuration - meaning the SMBJ6.0CAHM3_A/I provides symmetrical transient voltage clamping in both polarities, eliminating the need to consider anode/cathode orientation during PCB layout. This is essential for protecting AC-coupled or floating signal lines such as CAN bus, RS-485, or telecom pairs where voltage polarity reverses during normal operation.
Is SMBJ6.0CAHM3_A/I suitable for automotive applications?
Yes - the 'HM3' suffix confirms SMBJ6.0CAHM3_A/I is halogen-free, RoHS-compliant, and AEC-Q101 qualified. It has passed stress tests including high-temperature operating life, temperature cycling, and unbiased highly accelerated stress testing (uHAST), making it approved for under-hood and cabin ECU applications like body control modules and infotainment interfaces.
What is the maximum clamping voltage of SMBJ6.0CAHM3_A/I under surge conditions?
The SMBJ6.0CAHM3_A/I has a maximum clamping voltage (VC) of 10.3 V at 58.3 A peak pulse current (IPPM) using the standardized 10/1000 µs waveform. This value is measured after the device enters avalanche conduction and represents the highest voltage seen by downstream circuitry during worst-case surge events.
How does SMBJ6.0CAHM3_A/I differ from unidirectional SMBJ6.0AHM3_A/I?
The SMBJ6.0CAHM3_A/I is bidirectional with symmetrical VBR and clamping in both directions, while SMBJ6.0AHM3_A/I is unidirectional - conducting only in reverse bias and requiring correct polarity placement. Unidirectional versions offer slightly lower leakage at VWM but cannot protect AC signals without external circuitry; SMBJ6.0CAHM3_A/I simplifies design for differential or floating lines.
What PCB pad layout is recommended for optimal thermal performance of SMBJ6.0CAHM3_A/I?
Vishay specifies a minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pad for each terminal to achieve the rated RθJA of 100 °C/W. Use thermal vias under pads connected to internal ground/power planes to enhance heat dissipation - especially critical in high-duty-cycle surge environments or enclosed enclosures where ambient temperature exceeds 70 °C.
SMBJ6.0CAHM3_A/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:
- Obsolete
- 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_A/I FAQ
1.How can I place an order for SMBJ6.0CAHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ6.0CAHM3_A/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_A/I reliable?
The price and inventory of SMBJ6.0CAHM3_A/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_A/I is usually 5 days.
3.What payment methods are accepted for SMBJ6.0CAHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ6.0CAHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ6.0CAHM3_A/I?
SMBJ6.0CAHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ6.0CAHM3_A/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_A/I?
For technical support, including SMBJ6.0CAHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ6.0CAHM3_A/I requirements.
6.How does Aetrix verify that SMBJ6.0CAHM3_A/I is sourced from the original manufacturer or authorized distributors?
All SMBJ6.0CAHM3_A/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_A/I meets industry standards.
7.What is the process for return or replacement of SMBJ6.0CAHM3_A/I?
All SMBJ6.0CAHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ6.0CAHM3_A/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_A/I part is unused and in its original packaging.
Return procedure for SMBJ6.0CAHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ6.0CAHM3_A/I Tags
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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