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Vishay General Semiconductor - Diodes Division SMB8J6.0CAHM3_A/H
- Part No.:
- SMB8J6.0CAHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB8J6.0CAHM3_A/H.pdf
- Description:
- TVS DIODE 6VWM 10.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,117
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Product details
Overview
SMB8J6.0CAHM3_A/H from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for high-energy surge protection on signal and power lines. It features a 6.0 V stand-off voltage (VWM), 6.67–7.37 V breakdown voltage (VBR) at 10 mA, 10.3 V clamping voltage (VC) at 2000 A peak pulse current (IPPM), and 800 W peak pulse power (PPPM) with 10/1000 µs waveform - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMB8J6.0CAHM3_A/H datasheet, SMB8J6.0CAHM3_A/H pinout, SMB8J6.0CAHM3_A/H application, or SMB8J6.0CAHM3_A/H equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, MSL Level 1 moisture sensitivity, and compatibility with 0.2" × 0.2" copper pad layouts per JEDEC standards.
Technical Context
This device operates as a voltage-clamped shunt protector, responding within <1 ps to transients induced by inductive switching or ESD events. Its glass-passivated junction ensures stable VBR tolerance and low leakage (<1 μA at VWM), while the bidirectional configuration enables symmetric suppression across AC-coupled or floating signal paths without polarity dependency.
Thermal performance is defined by RθJL = 20 °C/W (junction-to-lead) and RθJA = 72 °C/W (junction-to-ambient on 0.2" × 0.2" pads), supporting sustained operation up to TJ = +150 °C. The halogen-free, RoHS-compliant HM3 suffix confirms compliance with JESD201 Class 2 whisker resistance and automotive-grade reliability requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.0 V - maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 6.67 V / 7.37 V at IT = 10 mA - tight breakdown window ensures predictable turn-on threshold |
| VC @ IPPM | 10.3 V at IPPM = 2000 A - limits downstream voltage stress during 10/1000 µs surges |
| PPPM | 800 W - peak power handling capacity under standardized transient waveform |
| ID @ VWM | <1 μA - ultra-low leakage preserves signal integrity in high-impedance circuits |
| TJ max | +150 °C - supports under-hood automotive and industrial ambient environments |
| Package | SMB (DO-214AA) - surface-mount footprint compatible with automated placement and reflow |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads, UL 94 V-0 rated, dimensions 4.57 mm × 3.94 mm × 2.20 mm (L × W × H). Polarity: bidirectional - no cathode marking required.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Both terminals function identically; clamps voltage above |VWM| in either direction |
| Case | Thermal and mechanical interface | Non-electrical; provides thermal path to PCB copper via soldered leads |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, ADAS sensors, and infotainment I/O |
| Halogen-free & RoHS-compliant (HM3) | Meets JESD201 Class 2 whisker resistance and environmental compliance for global OEM supply chains |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without pre-baking |
| Low incremental surge resistance | Enables efficient energy diversion with minimal voltage overshoot during fast-rising transients |
| Glass-passivated junction | Ensures long-term VBR stability and reduced parameter drift over temperature and life cycle |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load-dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional shunt clamp absorbing >800 W surge energy while holding line voltage ≤10.3 V. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V interface ICs during vehicle battery transients. | Use Scenario: Safeguarding digital input modules in programmable logic controllers exposed to relay coil flyback and motor drive noise. IC Role / Device Role / Timing Role: Fast-response TVS placed at connector entry point to divert 2000 A surges before reaching isolation barriers. Use Value: Eliminates need for external series impedance or RC filtering, reducing BOM count and board space. |
| Telecom Line Interface | Consumer Appliance Control Board |
Use Scenario: Shielding RS-485/RS-232 data lines in base stations and network equipment from lightning-induced surges. IC Role / Device Role / Timing Role: Bidirectional clamping element maintaining signal integrity during ±1 kV EFT bursts per IEC 61000-4-4. Use Value: Enables direct connection to unshielded wiring without additional transient filters or transformers. | Use Scenario: Protecting microcontroller GPIOs and display driver lines in washing machines and HVAC systems from motor commutation spikes. IC Role / Device Role / Timing Role: Low-leakage (≤1 μA) TVS preserving sleep-mode current budgets while suppressing 800 W surges. Use Value: Supports ENERGY STAR and EU ErP compliance by avoiding standby current degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMB8J6.0CAHE3_A/H | RoHS-compliant but not halogen-free; same electrical specs and AEC-Q101 qualification | Preferred for commercial-industrial use where halogen-free requirement is not mandated | Select when cost sensitivity outweighs halogen-free mandate and JESD201 Class 2 whisker resistance is not required |
| SMAJ6.0CA | Lower PPPM (600 W), smaller SMA package (DO-214AC), higher RθJA (90 °C/W) | Suitable for lower-energy surges or space-constrained consumer designs, not automotive-grade | Choose only for non-automotive applications with derated surge exposure and tighter board area constraints |
Compared with SMB8J6.0CAHE3_A/H, the SMB8J6.0CAHM3_A/H adds halogen-free construction and JESD201 Class 2 whisker resistance without sacrificing clamping performance; versus SMAJ6.0CA, it delivers +33 % peak power handling and superior thermal dissipation for mission-critical automotive and industrial deployments.
Availability
SMB8J6.0CAHM3_A/H is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O protection, telecom line interfaces, and consumer appliance control boards requiring stable component supply and AEC-Q101 assurance.
Supply support for SMB8J6.0CAHM3_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 and application-specific optimization.
The SMB8JxxCA series belongs to Vishay's TRANSZORB® TVS family, engineered specifically for high-power-density, bidirectional surge suppression in automotive and industrial environments demanding AEC-Q101 validation and robust thermal performance.
FAQ
What is the clamping voltage of SMB8J6.0CAHM3_A/H at its rated peak pulse current?
The SMB8J6.0CAHM3_A/H has a maximum clamping voltage (VC) of 10.3 V when subjected to its rated peak pulse current (IPPM) of 2000 A under a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and ensures downstream circuitry remains protected below critical voltage thresholds during surge events. The SMB8J6.0CAHM3_A/H maintains this clamping performance across its full operating temperature range.
Is SMB8J6.0CAHM3_A/H qualified for automotive applications?
Yes, SMB8J6.0CAHM3_A/H is AEC-Q101 qualified and carries the HM3 suffix indicating halogen-free, RoHS-compliant construction with JESD201 Class 2 whisker resistance. It is explicitly intended for automotive use cases including sensor interfaces, body electronics, and infotainment systems. The SMB8J6.0CAHM3_A/H meets MSL Level 1 and operates reliably from –55 °C to +150 °C junction temperature.
What does the "HM3" suffix mean in SMB8J6.0CAHM3_A/H?
The "HM3" suffix in SMB8J6.0CAHM3_A/H denotes halogen-free, RoHS-compliant construction meeting JESD201 Class 2 whisker resistance requirements. It distinguishes this variant from the HE3 (RoHS-compliant, non-halogen-free) version and confirms compliance with automotive and green electronics mandates. The SMB8J6.0CAHM3_A/H retains identical electrical specifications and AEC-Q101 qualification as HE3 variants.
How does SMB8J6.0CAHM3_A/H differ from unidirectional TVS diodes like SMB10J6.0A?
SMB8J6.0CAHM3_A/H is bidirectional and suppresses transients symmetrically across both polarities, making it ideal for AC-coupled or floating lines such as RS-485 or differential sensor outputs. In contrast, SMB10J6.0A is unidirectional with cathode marking and only clamps positive-going surges. The SMB8J6.0CAHM3_A/H offers 800 W PPPM vs. 1000 W for SMB10J6.0A but supports dual-polarity protection without external polarity management.
What PCB layout guidance applies to SMB8J6.0CAHM3_A/H for optimal thermal and surge performance?
Vishay specifies mounting SMB8J6.0CAHM3_A/H on minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to achieve rated PPPM and thermal resistance (RθJA = 72 °C/W). Use solid inner-layer copper pours connected via multiple thermal vias beneath the pads. Avoid narrow traces between the SMB8J6.0CAHM3_A/H and protected IC - keep path length short and impedance low to minimize inductive voltage overshoot during fast transients.
SMB8J6.0CAHM3_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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 6V
- Voltage - Breakdown (Min):
- 6.67V
- Voltage - Clamping (Max) @ Ipp:
- 10.3V
- Current - Peak Pulse (10/1000µs):
- 77.7A
- Power - Peak Pulse:
- 800W
- 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)
SMB8J6.0CAHM3_A/H FAQ
1.How can I place an order for SMB8J6.0CAHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB8J6.0CAHM3_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 SMB8J6.0CAHM3_A/H reliable?
The price and inventory of SMB8J6.0CAHM3_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 SMB8J6.0CAHM3_A/H is usually 5 days.
3.What payment methods are accepted for SMB8J6.0CAHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB8J6.0CAHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB8J6.0CAHM3_A/H?
SMB8J6.0CAHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB8J6.0CAHM3_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 SMB8J6.0CAHM3_A/H?
For technical support, including SMB8J6.0CAHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB8J6.0CAHM3_A/H requirements.
6.How does Aetrix verify that SMB8J6.0CAHM3_A/H is sourced from the original manufacturer or authorized distributors?
All SMB8J6.0CAHM3_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 SMB8J6.0CAHM3_A/H meets industry standards.
7.What is the process for return or replacement of SMB8J6.0CAHM3_A/H?
All SMB8J6.0CAHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMB8J6.0CAHM3_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 SMB8J6.0CAHM3_A/H part is unused and in its original packaging.
Return procedure for SMB8J6.0CAHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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