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Vishay General Semiconductor - Diodes Division SMB8J6.0CA-E3/52
- Part No.:
- SMB8J6.0CA-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB8J6.0CA-E3/52.pdf
- Description:
- TVS DIODE 6VWM 10.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,223
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Product details
Overview
SMB8J6.0CA-E3/52 from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for robust overvoltage protection on signal and power lines. It features 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 SMB8J6.0CA-E3/52 datasheet, SMB8J6.0CA-E3/52 pinout, SMB8J6.0CA-E3/52 application, or SMB8J6.0CA-E3/52 equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, low clamping ratio (VC/VWM ≈ 1.72), MSL Level 1 moisture sensitivity, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm 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 breakdown behavior, while bidirectional symmetry enables protection of AC-coupled or differential lines without polarity concerns.
Rated for -55 °C to +150 °C operating junction temperature and qualified to AEC-Q101, SMB8J6.0CA-E3/52 supports automotive-grade reliability under thermal cycling and mechanical stress. Its 20 °C/W junction-to-lead thermal resistance (RθJL) facilitates effective heat dissipation during surge events when mounted per recommended pad layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.0 V - maximum continuous reverse working voltage before clamping initiates; defines safe operating margin for 5 V logic or CAN bus lines. |
| VBR (min/max) | 6.67 V / 7.37 V at 10 mA - tight breakdown tolerance ensures predictable turn-on across production lots and temperature. |
| VC @ IPPM | 10.3 V at 2000 A - clamping voltage limits downstream IC stress during 800 W transient events (10/1000 µs). |
| PPPM | 800 W - peak pulse power rating determines survivability against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 surges. |
| ID @ VWM | ≤ 1.0 µA - ultra-low leakage preserves signal integrity and battery life in always-on sensor circuits. |
| TJ max. | +150 °C - enables deployment in engine bay or powertrain control modules without derating. |
| MSL Level | Level 1 (260 °C peak reflow) - supports standard lead-free SMT assembly without pre-baking. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional device with no polarity marking - symmetrical terminals simplify PCB layout and eliminate orientation errors during placement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Both terminals serve identical roles; bidirectional clamping occurs regardless of voltage polarity applied across the device. |
| Case (cathode band absent) | Thermal and mechanical interface | No cathode marking confirms bidirectional configuration; case provides primary thermal path to PCB copper pads. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including powertrain, body electronics, and ADAS sensor interfaces. |
| Glass-passivated junction | Ensures long-term stability of VBR and low parameter drift under thermal/humidity stress. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ESD > 15 kV contact discharge). |
| Matte tin-plated leads | Guarantees solderability per J-STD-002 and whisker resistance per JESD 201 Class 2. |
| UL 94 V-0 molding compound | Provides flame-retardant encapsulation required for under-hood and safety-critical systems. |
Applications
| Automotive Sensor Protection | Industrial Fieldbus Interface |
|---|---|
Use Scenario: Protecting LIN, CAN FD, or SENT signal lines in engine control units from load dump and inductive kickback. IC Role / Device Role / Timing Role: Shunt clamping element placed directly at connector entry point to divert surge energy before reaching transceiver IC. Use Value: Clamps 2000 A surges to ≤10.3 V, preserving signal integrity and preventing latch-up in 3.3 V/5 V transceivers compliant with ISO 11898-2. | Use Scenario: Safeguarding RS-485/RS-422 transceivers in PLC I/O modules exposed to lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Bidirectional voltage limiter across differential pair (A/B) and common-mode (GND) to suppress common- and differential-mode transients. Use Value: Withstands 800 W pulses without degradation, enabling compliance with IEC 61000-4-5 Level 3 (2 kV line-earth, 1 kV line-line) test requirements. |
| Consumer Power Adapter Input | Medical Diagnostic Equipment |
Use Scenario: Input-stage surge suppression on 5 V/12 V DC input rails of USB-C PD adapters and wall chargers. IC Role / Device Role / Timing Role: First-line defense against AC line transients coupled through SMPS transformer or Y-capacitor. Use Value: 6.0 V VWM allows clean operation under nominal 5 V supply while clamping 10/1000 µs surges to 10.3 V - preventing overvoltage damage to secondary-side controllers. | Use Scenario: ESD protection on analog front-end inputs of portable ultrasound or ECG devices handling microvolt-level bio-signals. IC Role / Device Role / Timing Role: Low-leakage (≤1.0 µA) shunt clamp placed before instrumentation amplifier to prevent saturation during 8 kV HBM ESD events. Use Value: Sub-100 pF junction capacitance (typ.) avoids signal distortion in 100 kHz–1 MHz bandwidth sensors while maintaining <10.3 V clamping ceiling. |
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-E3/52 | Unidirectional variant with same VWM/VBR/VC but lacks bidirectional symmetry; 1000 W PPPM (vs. 800 W). | Requires polarity-aware layout; unsuitable for AC or differential lines without external biasing. | Select only when unidirectional protection suffices and higher PPPM is prioritized over layout flexibility. |
| SMCJ6.0CA-E3/52 | Larger SMC (DO-214AB) package; same electrical specs but 1500 W PPPM and higher IPPM (3000 A). | Occupies ~2.5× PCB area; better suited for high-energy industrial mains protection than space-constrained automotive modules. | Choose when surge energy exceeds 800 W and board space permits larger footprint. |
Compared with SMBJ6.0CA-E3/52 and SMCJ6.0CA-E3/52, SMB8J6.0CA-E3/52 uniquely balances bidirectional functionality, AEC-Q101 qualification, and compact SMB footprint - making it optimal for automotive and space-limited industrial designs requiring polarity-agnostic clamping.
Availability
SMB8J6.0CA-E3/52 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial fieldbus protection, and medical diagnostic equipment requiring stable component supply and full traceability.
Supply support for SMB8J6.0CA-E3/52 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 and automotive-grade validation.
The SMB8J series belongs to Vishay's TRANSZORB® TVS portfolio, engineered specifically for high-energy, bidirectional transient suppression in harsh environments where AEC-Q101 compliance and low clamping voltage are critical.
FAQ
What is the clamping voltage of SMB8J6.0CA-E3/52 and how is it measured?
The SMB8J6.0CA-E3/52 has a maximum clamping voltage (VC) of 10.3 V, measured at 2000 A peak pulse current using a standardized 10/1000 µs double-exponential waveform. This value reflects the actual voltage seen by protected circuitry during worst-case surge events and is guaranteed across the full operating temperature range (-55 °C to +150 °C).
Is SMB8J6.0CA-E3/52 suitable for automotive applications?
Yes, SMB8J6.0CA-E3/52 is AEC-Q101 qualified and RoHS-compliant, with manufacturing and testing performed to automotive reliability standards. Its bidirectional architecture, 150 °C junction rating, and MSL Level 1 reflow compatibility make it appropriate for engine control, body electronics, and ADAS sensor protection in production vehicles.
How does SMB8J6.0CA-E3/52 differ from SMBJ6.0CA-E3/52?
SMB8J6.0CA-E3/52 is bidirectional with 800 W peak pulse power and 2000 A IPPM, while SMBJ6.0CA-E3/52 is unidirectional with 1000 W PPPM and 1000 A IPPM. The "8" in SMB8J denotes higher surge current capability in bidirectional configuration, and the absence of cathode marking confirms its symmetric design - critical for AC or differential signal protection.
What is the thermal resistance of SMB8J6.0CA-E3/52 and why does it matter?
SMB8J6.0CA-E3/52 has a typical junction-to-lead thermal resistance (RθJL) of 20 °C/W. This low value enables efficient heat transfer from the silicon die to the PCB copper pads during transient events, reducing thermal stress and improving surge endurance - especially important in high-reliability automotive and industrial applications where repeated surges may occur.
Does SMB8J6.0CA-E3/52 require special PCB layout considerations?
Yes - Vishay specifies mounting on minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to achieve rated 800 W PPPM performance. Smaller pads cause thermal derating; inadequate copper area increases clamping voltage and risks device failure. The SMB (DO-214AA) footprint must follow exact dimensions in datasheet Figure 5 to ensure mechanical reliability and solder joint integrity.
SMB8J6.0CA-E3/52 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-E3/52 FAQ
1.How can I place an order for SMB8J6.0CA-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB8J6.0CA-E3/52 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-E3/52 reliable?
The price and inventory of SMB8J6.0CA-E3/52 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-E3/52 is usually 5 days.
3.What payment methods are accepted for SMB8J6.0CA-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB8J6.0CA-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB8J6.0CA-E3/52?
SMB8J6.0CA-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB8J6.0CA-E3/52 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-E3/52?
For technical support, including SMB8J6.0CA-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB8J6.0CA-E3/52 requirements.
6.How does Aetrix verify that SMB8J6.0CA-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMB8J6.0CA-E3/52 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-E3/52 meets industry standards.
7.What is the process for return or replacement of SMB8J6.0CA-E3/52?
All SMB8J6.0CA-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMB8J6.0CA-E3/52, 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-E3/52 part is unused and in its original packaging.
Return procedure for SMB8J6.0CA-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB8J6.0CA-E3/52 Tags
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