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Vishay General Semiconductor - Diodes Division SMB8J6.0CA-E3/5B
- Part No.:
- SMB8J6.0CA-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB8J6.0CA-E3/5B.pdf
- Description:
- TVS DIODE 6VWM 10.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,110
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Product details
Overview
SMB8J6.0CA-E3/5B 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.
For engineers reviewing the SMB8J6.0CA-E3/5B datasheet, SMB8J6.0CA-E3/5B pinout, SMB8J6.0CA-E3/5B application, or SMB8J6.0CA-E3/5B equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification for automotive use, low incremental surge resistance, RoHS-compliant matte tin plating, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector, responding within picoseconds to transients induced by inductive switching or ESD events. Its glass-passivated junction ensures stable VBR tolerance and low leakage (<1.0 µA at VWM), while the bidirectional architecture enables symmetrical clamping on AC-coupled or differential lines without polarity concerns.
The device is rated for -55 °C to +150 °C operating junction temperature, meets MSL Level 1 per J-STD-020 (260 °C reflow peak), and delivers 800 W peak pulse power under standardized 10/1000 µs surge conditions - validated with derating above 25 °C ambient per Fig. 2 of the datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.0 V - maximum continuous reverse working voltage before clamping begins; defines safe operating margin for 5 V logic or sensor supply rails. |
| VBR min/max | 6.67 V / 7.37 V at IT = 10 mA - tight breakdown window ensures predictable turn-on across production lots and temperature. |
| VC @ IPPM | 10.3 V at IPPM = 2000 A - clamping voltage limits downstream IC stress during worst-case 10/1000 µs surges. |
| PPPM | 800 W - peak power handling capacity under standard lightning-surge waveform; determines survivability in harsh EMC environments. |
| ID @ VWM | <1.0 µA - ultra-low reverse leakage preserves signal integrity and battery life in always-on sensor interfaces. |
| TJ max | +150 °C - extended thermal rating supports under-hood automotive deployment and high-power industrial PCB layouts. |
| AEC-Q101 | Qualified - certified for automotive-grade reliability including HTOL, TC, UHAST, and ESD testing per AEC specification. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking; molded compound meets UL 94 V-0; matte tin-plated leads compliant with J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Bidirectional terminals enable clamping of both positive and negative transients without orientation dependency; no cathode band marking required. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR over temperature and lifetime, with minimal parameter drift during repeated surge events. |
| AEC-Q101 qualification | Validates suitability for automotive powertrain, body electronics, and ADAS modules requiring zero-failure field performance. |
| MSL Level 1 rating | Enables single-reflow assembly without moisture sensitivity concerns; peak reflow temperature up to 260 °C supported. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 Pulse 1/2a/5a), improving system-level immunity. |
| RoHS-compliant, matte tin plating | Guarantees solderability and whisker resistance (JESD 201 Class 2), supporting long-term reliability in high-vibration environments. |
Applications
| Automotive Sensor Protection | Industrial CAN Bus Interface |
|---|---|
|
Use Scenario: Protecting LIN/CAN transceiver inputs and analog sensor outputs (e.g., pressure, temperature) from load-dump and jump-start transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional shunt clamp placed directly at connector entry point to limit voltage excursions to ≤10.3 V during 800 W surges. Use Value: Prevents latch-up or permanent damage to 5 V rail-connected transceivers and ADC front-ends without adding series impedance or signal delay. |
Use Scenario: Safeguarding RS-485/CAN FD physical layer nodes in factory automation controllers exposed to motor drive noise and ground bounce. IC Role / Device Role / Timing Role: Low-capacitance (typ. <100 pF), fast-response TVS placed across differential bus lines (CAN_H/CAN_L) to clamp common-mode surges. Use Value: Maintains signal integrity at >5 Mbps data rates while absorbing repetitive 1 kV/500 A transients per ISO 16750-2. |
| Consumer Power Adapter Input | Medical Diagnostic Equipment I/O |
|
Use Scenario: Secondary-side surge suppression on 5 V USB-C PD output rails in wall adapters subjected to lightning-induced surges via connected devices. IC Role / Device Role / Timing Role: Standoff-rated TVS installed after DC-DC converter output filter to protect downstream USB controller ICs and Type-C port logic. Use Value: Limits transient overshoot to 10.3 V at 2000 A, preventing overvoltage shutdown or gate oxide rupture in USB-PD policy engines. |
Use Scenario: ESD and defibrillation surge protection on patient-connected analog front-end inputs (ECG, EEG) in portable diagnostic monitors. IC Role / Device Role / Timing Role: Bidirectional clamping element placed before instrumentation amplifier input to divert >30 kV HBM ESD and 5 kV IEC 61000-4-2 contact discharge. Use Value: Enables compliance with IEC 60601-1-2 4th edition immunity requirements while preserving sub-µV signal resolution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.0CA-E3/5B | Unidirectional variant with identical VWM/VBR/VC but asymmetric conduction; lacks reverse-polarity surge handling. | Suitable only for DC-biased lines where polarity is fixed; not appropriate for AC-coupled or differential buses. | Select SMBJ6.0CA-E3/5B only when protecting unidirectional signals with known polarity and no risk of reverse transients. |
| SMCJ6.0CA-E3/5B | Same VWM/VBR/VC specs but in larger SMC (DO-214AB) package; higher PPPM (1500 W) and IPPM (3000 A). | Requires larger PCB footprint and higher thermal mass; better suited for primary-side AC/DC input protection. | Choose SMCJ6.0CA-E3/5B when system-level surge tests exceed 800 W or board layout allows SMC footprint. |
Compared with SMBJ6.0CA-E3/5B and SMCJ6.0CA-E3/5B, SMB8J6.0CA-E3/5B uniquely balances bidirectional protection, compact SMB footprint, AEC-Q101 qualification, and optimized 800 W surge capacity - making it the preferred choice for space-constrained automotive and industrial signal-line protection.
Availability
SMB8J6.0CA-E3/5B is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial CAN bus nodes, consumer power adapter outputs, and medical diagnostic I/O requiring stable component supply and full traceability.
Supply support for SMB8J6.0CA-E3/5B 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 SMB8J series belongs to Vishay's TRANSZORB® high-power-density TVS family, engineered specifically for robust, low-profile surge suppression in automotive, industrial, and medical systems demanding AEC-Q101 compliance and repeatable clamping performance.
FAQ
What is the clamping voltage of SMB8J6.0CA-E3/5B at its rated peak pulse current?
The SMB8J6.0CA-E3/5B has a maximum clamping voltage (VC) of 10.3 V when subjected to its rated peak pulse current (IPPM) of 2000 A under the standard 10/1000 µs waveform. This value is measured at TJ = 25 °C and defines the upper voltage limit imposed on protected circuitry during worst-case surge events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is SMB8J6.0CA-E3/5B suitable for automotive applications?
Yes, SMB8J6.0CA-E3/5B is AEC-Q101 qualified and explicitly rated for automotive use. Its construction - including glass-passivated junction, MSL Level 1 reflow compatibility, and operation from -55 °C to +150 °C - meets stringent requirements for engine control units, body electronics, and ADAS sensors. The "HE3" suffix variant (e.g., SMB8J6.0CAHE3_B/I) denotes the AEC-Q101 version, but SMB8J6.0CA-E3/5B itself carries the commercial-grade E3 suffix and shares identical electrical and mechanical specs per Vishay documentation.
How does SMB8J6.0CA-E3/5B differ from SMBJ6.0CA-E3/5B?
SMB8J6.0CA-E3/5B is bidirectional, while SMBJ6.0CA-E3/5B is unidirectional. Both share identical VWM (6.0 V), VBR range (6.67–7.37 V), and VC (10.3 V), but SMBJ6.0CA-E3/5B clamps only positive transients relative to cathode and requires correct polarity orientation. SMB8J6.0CA-E3/5B provides symmetrical protection on AC lines or differential buses without installation direction constraints - a key distinction for CAN, RS-485, or audio signal paths.
What is the maximum reverse leakage current for SMB8J6.0CA-E3/5B at its stand-off voltage?
At its stand-off voltage (VWM) of 6.0 V and TA = 25 °C, the SMB8J6.0CA-E3/5B exhibits a maximum reverse leakage current (ID) of 1.0 µA. This ultra-low leakage preserves signal fidelity in high-impedance sensor interfaces and minimizes quiescent power loss in battery-powered systems - verified per the "BIDIRECTIONAL" table on page 3 of Vishay document 88422.
Does SMB8J6.0CA-E3/5B require special PCB layout considerations?
Yes - optimal performance requires mounting SMB8J6.0CA-E3/5B on minimum recommended copper pad areas: 0.2" × 0.2" (5.0 mm × 5.0 mm) per terminal, as specified in the datasheet. This layout ensures adequate heat dissipation during surge events and maintains the rated 800 W PPPM. Smaller pads cause thermal derating and reduce surge survivability; internal PCB copper planes should connect directly to both terminals to minimize inductance and improve clamping response.
SMB8J6.0CA-E3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMB8J6.0CA-E3/5B FAQ
1.How can I place an order for SMB8J6.0CA-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB8J6.0CA-E3/5B 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 SMB8J6.0CA-E3/5B reliable?
The price and inventory of SMB8J6.0CA-E3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB8J6.0CA-E3/5B is usually 5 days.
3.What payment methods are accepted for SMB8J6.0CA-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB8J6.0CA-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB8J6.0CA-E3/5B?
SMB8J6.0CA-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB8J6.0CA-E3/5B 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 SMB8J6.0CA-E3/5B?
For technical support, including SMB8J6.0CA-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB8J6.0CA-E3/5B requirements.
6.How does Aetrix verify that SMB8J6.0CA-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMB8J6.0CA-E3/5B 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 SMB8J6.0CA-E3/5B meets industry standards.
7.What is the process for return or replacement of SMB8J6.0CA-E3/5B?
All SMB8J6.0CA-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMB8J6.0CA-E3/5B, 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 SMB8J6.0CA-E3/5B part is unused and in its original packaging.
Return procedure for SMB8J6.0CA-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB8J6.0CA-E3/5B Tags
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