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Vishay General Semiconductor - Diodes Division SMB8J6.0CAHM3_A/I
- Part No.:
- SMB8J6.0CAHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB8J6.0CAHM3_A/I.pdf
- Description:
- TVS DIODE 6VWM 10.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,958
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Product details
Overview
SMB8J6.0CAHM3_A/I 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/I datasheet, SMB8J6.0CAHM3_A/I pinout, SMB8J6.0CAHM3_A/I application, or SMB8J6.0CAHM3_A/I equivalent, this page delivers verified electrical specs, AEC-Q101 qualification status, thermal resistance (RθJA = 72 °C/W), clamping performance under surge, and automotive-grade packaging details - all critical for ESD/surge co-design in 12 V rail and CAN/LIN bus protection.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, enabling robust protection against bipolar transients such as ISO 7637-2 pulse 1/2a/3a and IEC 61000-4-5 surge events. Its glass-passivated junction ensures stable VBR tolerance (±5% typical) and low leakage (<1 μA at VWM), while the low incremental surge resistance supports fast clamping response (<1 ns).
The device is rated for TJ = –55 °C to +150 °C operation, meets MSL Level 1 per J-STD-020 (peak reflow 260 °C), and is halogen-free and RoHS-compliant per suffix HM3. Its 72 °C/W junction-to-ambient thermal resistance requires minimum 5.0 mm × 5.0 mm copper pad layout per terminal for full 800 W rating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.0 V - maximum continuous reverse operating voltage before significant leakage; sets upper limit for protected line DC bias. |
| VBR (min/max) | 6.67 V / 7.37 V at IT = 10 mA - defines reliable conduction onset window; tight tolerance enables predictable turn-on in automotive 12 V systems. |
| VC @ IPPM | 10.3 V at IPPM = 2000 A (10/1000 μs) - clamping voltage during worst-case surge; limits stress on downstream ICs like microcontrollers or transceivers. |
| PPPM | 800 W - peak pulse power handling capacity; determines survivability against standardized lightning/surge waveforms. |
| ID @ VWM | <1 μA - ultra-low reverse leakage at stand-off voltage; preserves signal integrity and battery life in always-on circuits. |
| TJ max. | +150 °C - maximum junction temperature; supports under-hood automotive deployment with validated thermal derating curves. |
| RθJA | 72 °C/W - junction-to-ambient thermal resistance; dictates required PCB copper area (0.2" × 0.2") for full power rating. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking (unlike unidirectional variants which feature cathode band). Matte tin-plated leads, compliant with J-STD-002 and JESD 22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient current path | Both terminals function identically; bidirectional clamping allows placement without orientation concern on differential or AC-coupled lines. |
| Case (body) | Thermal and mechanical interface | Non-electrical; thermally coupled to PCB copper pads for heat dissipation - requires 5.0 mm × 5.0 mm minimum pad per terminal. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS sensor modules per stress test requirements. |
| Halogen-free & RoHS-compliant (HM3) | Meets global environmental compliance mandates without compromising surge robustness or thermal performance. |
| Low-profile SMB package | Height ≤ 2.20 mm enables use in space-constrained modules such as automotive camera ECUs and infotainment connectors. |
| MSL Level 1 moisture sensitivity | Allows standard SMT reflow without dry-pack or baking; peak temperature up to 260 °C supported. |
| Glass-passivated junction | Ensures long-term stability of VBR and leakage under thermal cycling and humidity exposure in harsh environments. |
Applications
| Automotive Sensor Interface Protection | Industrial Digital I/O Protection |
|---|---|
Use Scenario: Protecting LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and inductive switching spikes in vehicle chassis modules. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector entry point to shunt surge energy before reaching ASIC or MCU input pins. Use Value: Limits transient voltage to ≤10.3 V during 2000 A surges, preserving signal fidelity and preventing latch-up in 5 V/3.3 V interface ICs. |
Use Scenario: Safeguarding PLC digital input cards against field-wiring induced surges from solenoid coils and motor contactors in factory automation. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 24 V DC input channels, coordinated with series current-limiting resistor and optocoupler isolation. Use Value: Withstands repeated 800 W pulses without degradation, enabling >100,000 surge cycles per IEC 61000-4-5 Class 3 compliance. |
| Automotive Camera Module ESD Protection | Telecom Line Interface Surge Suppression |
Use Scenario: Front-end protection for MIPI CSI-2 data lanes and power rails in rear-view and surround-view cameras exposed to ISO 10605 ESD events. IC Role / Device Role / Timing Role: Low-capacitance (typ. <50 pF at 0 V) bidirectional TVS placed adjacent to connector to minimize stub length and preserve signal integrity. Use Value: Clamps ±15 kV contact discharge to <15 V within <1 ns, preventing damage to image sensor and serializer ICs without distorting high-speed video signals. |
Use Scenario: Secondary surge protection on Ethernet PHY power and bias lines in PoE-powered access points and base station backhaul interfaces. IC Role / Device Role / Timing Role: Coordinated clamping stage following gas discharge tube (GDT) primary protection to handle residual fast-rising transients. Use Value: Delivers 800 W peak power absorption with 10.3 V clamping, reducing let-through energy to downstream DC-DC converters and PHY controllers. |
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/I | Same electrical specs but RoHS-compliant commercial grade (E3), not halogen-free or AEC-Q101 qualified. | Approved for non-automotive industrial/commercial use only; lacks automotive reliability validation. | Select when AEC-Q101 and halogen-free requirements are not mandated. |
| SMAJ6.0CA | Lower PPPM (400 W), smaller SMA package (DO-214AC), higher RθJA (95 °C/W), same VWM/VBR/VC. | Limited to lower-energy transients; unsuitable for ISO 7637-2 pulse 5a or IEC 61000-4-5 line surges requiring ≥800 W. | Choose only for space-constrained consumer applications with reduced surge threat level. |
Compared with SMB8J6.0CAHM3_A/I, the HE3 variant omits automotive qualification and halogen-free compliance, while the SMAJ6.0CA sacrifices 50% surge power rating and thermal performance - making SMB8J6.0CAHM3_A/I the sole option meeting full AEC-Q101, 800 W, and halogen-free requirements in SMB footprint.
Availability
SMB8J6.0CAHM3_A/I is available at Aetrix Electronics and suitable for automotive electronics, industrial PLC I/O modules, and telecom infrastructure requiring stable component supply with AEC-Q101 validation and halogen-free compliance.
Supply support for SMB8J6.0CAHM3_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 high-reliability diodes, MOSFETs, and passive components for automotive, industrial, and computing markets.
The SMB8JxxCA series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-power, bidirectional surge suppression in automotive and industrial environments where AEC-Q101 qualification and consistent clamping performance are mandatory.
FAQ
What is the clamping voltage of SMB8J6.0CAHM3_A/I at its rated peak pulse current?
The SMB8J6.0CAHM3_A/I has a maximum clamping voltage (VC) of 10.3 V when subjected to its rated peak pulse current (IPPM) of 2000 A using the 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and confirmed in Vishay's datasheet revision 09-Jan-2024, ensuring predictable overvoltage limiting for downstream 5 V or 3.3 V ICs in automotive and industrial designs.
Is SMB8J6.0CAHM3_A/I qualified to AEC-Q101, and what does that cover?
Yes, SMB8J6.0CAHM3_A/I is AEC-Q101 qualified - explicitly stated in the Vishay datasheet with suffix HM3_X denoting halogen-free, RoHS-compliant, and AEC-Q101 validated devices. This qualification covers stress tests including HTGB, HTRB, TCT, and ESD (HBM/MM), validating reliability for under-hood automotive applications such as body control modules and ADAS sensor units.
What is the thermal resistance and recommended PCB layout for SMB8J6.0CAHM3_A/I?
The SMB8J6.0CAHM3_A/I has a typical junction-to-ambient thermal resistance (RθJA) of 72 °C/W, achievable only when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This layout is mandatory to sustain its full 800 W peak pulse power rating; reduced pad area causes thermal derating per Figure 2 in the Vishay datasheet.
How does SMB8J6.0CAHM3_A/I differ from unidirectional SMB10J6.0A?
SMB8J6.0CAHM3_A/I is bidirectional with 800 W PPPM and 2000 A IPPM, while SMB10J6.0A is unidirectional with 1000 W PPPM and 97.1 A IPPM. The "8" prefix denotes 800 W rating; "10" denotes 1000 W. Additionally, SMB8J6.0CAHM3_A/I carries AEC-Q101 and halogen-free (HM3) certification, whereas SMB10J6.0A-E3/M3 variants do not include automotive qualification unless suffixed HE3/HM3.
What is the reverse leakage current of SMB8J6.0CAHM3_A/I at its stand-off voltage?
At its 6.0 V stand-off voltage (VWM), the SMB8J6.0CAHM3_A/I exhibits a maximum reverse leakage current (ID) of 1.0 μA at TA = 25 °C - specified in the bidirectional electrical characteristics table of the Vishay datasheet. This ultra-low leakage preserves power efficiency in always-on automotive circuits and avoids false triggering in high-impedance sensor interfaces.
SMB8J6.0CAHM3_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):
- 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/I FAQ
1.How can I place an order for SMB8J6.0CAHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB8J6.0CAHM3_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 SMB8J6.0CAHM3_A/I reliable?
The price and inventory of SMB8J6.0CAHM3_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 SMB8J6.0CAHM3_A/I is usually 5 days.
3.What payment methods are accepted for SMB8J6.0CAHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB8J6.0CAHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB8J6.0CAHM3_A/I?
SMB8J6.0CAHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB8J6.0CAHM3_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 SMB8J6.0CAHM3_A/I?
For technical support, including SMB8J6.0CAHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB8J6.0CAHM3_A/I requirements.
6.How does Aetrix verify that SMB8J6.0CAHM3_A/I is sourced from the original manufacturer or authorized distributors?
All SMB8J6.0CAHM3_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 SMB8J6.0CAHM3_A/I meets industry standards.
7.What is the process for return or replacement of SMB8J6.0CAHM3_A/I?
All SMB8J6.0CAHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMB8J6.0CAHM3_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 SMB8J6.0CAHM3_A/I part is unused and in its original packaging.
Return procedure for SMB8J6.0CAHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB8J6.0CAHM3_A/I Tags
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