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Vishay General Semiconductor - Diodes Division SMBJ6.0CAHE3/52
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- Part No.:
- SMBJ6.0CAHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ6.0CAHE3/52.pdf
- Description:
- TVS DIODE 6VWM 10.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:0
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Product details
Overview
SMBJ6.0CAHE3/52 from Vishay General Semiconductor is a bidirectional surface-mount transient voltage suppressor (TVS) diode in the SMB (DO-214AA) package, designed for clamping voltage transients on signal and power lines. It features a 6.4 V minimum breakdown voltage (VBR), 6.0 V maximum stand-off voltage (VWM), 600 W peak pulse power (10/1000 µs), and AEC-Q101 qualification for automotive-grade reliability - used to protect MOSFETs, sensor interfaces, and IC power rails in industrial and automotive control modules.
For engineers reviewing the SMBJ6.0CAHE3/52 datasheet, SMBJ6.0CAHE3/52 pinout, SMBJ6.0CAHE3/52 application, or SMBJ6.0CAHE3/52 equivalent, this page delivers verified electrical parameters, bidirectional clamping behavior, thermal derating curves, AEC-Q101 compliance status, and direct replacement options for ESD and surge protection design-in.
Technical Context
The SMBJ6.0CAHE3/52 operates as a symmetrical avalanche diode with identical forward and reverse breakdown characteristics due to its bidirectional construction. Its clamping voltage (VC) is 10.3 V at 58.3 A peak pulse current (IPPM), enabling robust suppression of fast transients while maintaining low leakage (<1.0 µA at VWM).
Thermally, it exhibits RθJA = 100 °C/W and RθJL = 20 °C/W, supporting operation up to +150 °C junction temperature. The device uses glass-passivated silicon junctions and matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 6.4 V to 7.07 V - defines reliable avalanche initiation threshold under 10 mA test current |
| VWM | 6.0 V - maximum continuous reverse voltage before significant leakage begins |
| IPPM (10/1000 µs) | 58.3 A - peak surge current it safely clamps without failure |
| VC @ IPPM | 10.3 V - clamped voltage seen by protected circuit during worst-case surge |
| PPPM | 600 W - peak transient power dissipation capability per JEDEC standard waveform |
| TJ max. | +150 °C - enables use in under-hood automotive and high-temperature industrial environments |
| AEC-Q101 qualified | Yes - validated for automotive electronics per stress test requirements including HTOL, TCT, and ESD |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with 0.220" × 0.155" footprint and 0.086" height. Matte tin-plated terminals; no polarity marking for bidirectional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Both terminals function identically - conducts in either direction once VBR exceeded |
| Case (body) | Non-electrical mechanical interface | No internal connection; serves only as thermal and mechanical anchor to PCB copper pads |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Supports IEC 61000-4-5 Level 4 surge immunity (4 kV line-to-earth) with margin |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive powertrain, body control, and ADAS subsystems requiring long-term reliability |
| Low clamping ratio (VC/VWM ≈ 1.72) | Minimizes overvoltage stress on downstream ICs during transient events |
| MSL Level 1 (260 °C reflow) | Enables single-pass lead-free assembly without moisture sensitivity concerns |
| UL 94 V-0 molding compound | Meets flammability safety requirements for enclosed industrial and automotive enclosures |
Applications
| Automotive Body Control Module | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting LIN bus transceivers and microcontroller GPIOs from load dump and inductive switching spikes in door module ECUs. IC Role / Device Role / Timing Role: Bidirectional clamping element placed across power rail and signal line to limit transient excursions to safe levels. Use Value: Prevents latch-up or permanent damage to 5 V logic circuits during 12 V system load dump events (ISO 7637-2 Pulse 5a). |
Use Scenario: Safeguarding analog output lines of 4–20 mA current-loop sensors exposed to field wiring surges in factory automation cabinets. IC Role / Device Role / Timing Role: Fast-response shunt protector that activates within <1 ns to clamp induced transients before reaching ADC input stages. Use Value: Maintains signal integrity and avoids false triggering in PLC analog input modules subjected to repetitive 1 kV/µs transients. |
| Telecom Power Supply Input | Consumer Appliance Motor Drive |
Use Scenario: Suppressing lightning-induced surges on AC-DC adapter primary-side inputs in VoIP gateways and DSL modems. IC Role / Device Role / Timing Role: Primary-stage TVS placed between rectifier output and bulk capacitor to absorb differential-mode energy. Use Value: Enables compliance with ITU-T K.20 and EN 61000-4-5 without adding bulkier MOV-based solutions. |
Use Scenario: Shielding MCU reset and communication pins from commutation noise generated by brushed DC motors in smart home appliances. IC Role / Device Role / Timing Role: Localized point-of-use protection adjacent to motor driver ICs and microcontroller I/O headers. Use Value: Eliminates firmware resets and UART corruption caused by 500 V/µs edge transients coupled through shared ground planes. |
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-M3/52 | Halogen-free, RoHS-compliant variant; identical electrical specs and AEC-Q101 qualification | Preferred where halogen-free material compliance is mandated (e.g., EU medical or public infrastructure projects) | Select SMBJ6.0CAHE3/52 for automotive; SMBJ6.0CA-M3/52 for halogen-free industrial designs |
| SMCJ6.0CAHE3/52 | Same VWM/VBR, but SMC (DO-214AB) package with 1500 W PPPM rating and higher IPPM (97.5 A) | Used when higher surge margin is required (e.g., outdoor telecom equipment or solar charge controllers) | Choose SMBJ6.0CAHE3/52 for space-constrained PCBs; SMCJ6.0CAHE3/52 where board area allows larger footprint and higher energy handling |
Compared with SMBJ6.0CA-M3/52, the SMBJ6.0CAHE3/52 offers identical surge performance with automotive qualification; versus SMCJ6.0CAHE3/52, it trades 2.5× lower peak power for 30 % smaller PCB area - critical for compact ECU and sensor node layouts.
Availability
SMBJ6.0CAHE3/52 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor systems, and telecom power supply protection requiring stable component supply and AEC-Q101 traceability.
Supply support for SMBJ6.0CAHE3/52 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 application-specific performance.
The SMBJ series was engineered for high-reliability transient suppression in automotive and industrial environments, combining AEC-Q101 validation, tight VBR tolerance, and robust thermal design in compact surface-mount packages.
FAQ
What is the breakdown voltage range for SMBJ6.0CAHE3/52?
The SMBJ6.0CAHE3/52 has a guaranteed breakdown voltage (VBR) range of 6.4 V to 7.07 V at 10 mA test current, measured in both directions due to its bidirectional construction. This ensures consistent clamping behavior regardless of transient polarity, making it ideal for protecting AC-coupled or floating signal paths where voltage reversal may occur. The specification is verified per ANSI/IEEE C62.35 and confirmed in Vishay's Document Number 88392.
Is SMBJ6.0CAHE3/52 suitable for automotive applications?
Yes, SMBJ6.0CAHE3/52 is AEC-Q101 qualified and explicitly designated for automotive use via the "HE3" suffix. It meets stress test requirements including high-temperature operating life (HTOL), temperature cycling (TCT), and human-body-model ESD (HBM ≥ 8 kV). Its +150 °C maximum junction temperature and MSL Level 1 rating support under-hood deployment in body control modules, lighting drivers, and infotainment power supplies.
How does the clamping voltage of SMBJ6.0CAHE3/52 compare to its stand-off voltage?
The SMBJ6.0CAHE3/52 clamps at 10.3 V when subjected to its rated 58.3 A peak pulse current (10/1000 µs), resulting in a clamping ratio (VC/VWM) of approximately 1.72. This tight ratio ensures protected circuits experience minimal overvoltage - critical for safeguarding 5 V logic rails and analog front-ends without requiring additional series impedance or voltage margining.
What is the maximum leakage current of SMBJ6.0CAHE3/52 at rated stand-off voltage?
At its 6.0 V stand-off voltage (VWM), the SMBJ6.0CAHE3/52 exhibits a maximum reverse leakage current (ID) of 1.0 µA at 25 °C, per Vishay's Electrical Characteristics table. This ultra-low leakage preserves signal integrity in high-impedance sensor interfaces and prevents unnecessary power drain in battery-operated devices - a key advantage over higher-leakage alternatives like certain polymer-based TVS devices.
Can SMBJ6.0CAHE3/52 be used in place of unidirectional TVS diodes?
No - SMBJ6.0CAHE3/52 is strictly bidirectional and lacks cathode/anode polarity marking. It must not replace unidirectional variants (e.g., SMBJ6.0AHE3/52) in DC-biased circuits where forward conduction would cause short-circuit failure. Its symmetrical structure is intended for AC lines, floating buses, or dual-rail protection where transient polarity is unpredictable, such as LIN bus or RS-485 differential pairs.
SMBJ6.0CAHE3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SMBJ6.0CAHE3/52 FAQ
1.How can I place an order for SMBJ6.0CAHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ6.0CAHE3/52 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 SMBJ6.0CAHE3/52 reliable?
The price and inventory of SMBJ6.0CAHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ6.0CAHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ6.0CAHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ6.0CAHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ6.0CAHE3/52?
SMBJ6.0CAHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ6.0CAHE3/52 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 SMBJ6.0CAHE3/52?
For technical support, including SMBJ6.0CAHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ6.0CAHE3/52 requirements.
6.How does Aetrix verify that SMBJ6.0CAHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ6.0CAHE3/52 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 SMBJ6.0CAHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ6.0CAHE3/52?
All SMBJ6.0CAHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ6.0CAHE3/52, 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 SMBJ6.0CAHE3/52 part is unused and in its original packaging.
Return procedure for SMBJ6.0CAHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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