Vishay General Semiconductor - Diodes Division SMBJ6.0CAHE3_A/I
- Part No.:
- SMBJ6.0CAHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ6.0CAHE3_A/I.pdf
- Description:
- TVS DIODE 6VWM 10.3VC DO214AA
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
SMBJ6.0CAHE3_A/I from Vishay General Semiconductor is a bidirectional surface-mount transient voltage suppressor (TVS) diode in the SMB (DO-214AA) package, designed for clamping ESD and surge transients on signal/power lines. It features a 6.0 V stand-off voltage (VWM), 6.4–7.07 V breakdown voltage (VBR) at 10 mA, 600 W peak pulse power (10/1000 µs), and clamps to ≤10.3 V at 58.3 A IPPM - deployed in automotive sensor interfaces, industrial I/O protection, and telecom line receivers.
For engineers reviewing the SMBJ6.0CAHE3_A/I datasheet, SMBJ6.0CAHE3_A/I pinout, SMBJ6.0CAHE3_A/I application, or SMBJ6.0CAHE3_A/I equivalent, this page delivers verified electrical specs, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), junction temperature range (−55 to +150 °C), and bidirectional clamping behavior critical for robust overvoltage design.
Technical Context
This device operates as a bidirectional avalanche diode, symmetrically clamping positive and negative transients above its breakdown threshold without polarity dependence. Its glass-passivated junction ensures stable VBR tolerance (±5% typical) and low leakage (<1.0 µA at VWM), while the SMB package enables automated placement and meets MSL level 1 (260 °C reflow peak).
Designed for repetitive surge immunity per IEC 61000-4-5 (10/1000 µs waveform), it delivers 600 W peak pulse power with <1 ns response time and low incremental surge resistance - enabling effective protection of downstream MOSFETs, ICs, and analog front-ends against inductive switching spikes and lightning-induced surges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.0 V - maximum continuous reverse operating voltage before clamping begins; defines safe signal swing margin in protected circuits. |
| VBR min/max | 6.4 V / 7.07 V at IT = 10 mA - guaranteed breakdown window ensuring predictable turn-on across temperature and unit variation. |
| VC @ IPPM | 10.3 V at 58.3 A - clamping voltage under full 600 W surge; determines worst-case stress on downstream components. |
| PPPM | 600 W (10/1000 µs) - peak transient energy absorption capability; supports industrial and automotive surge compliance testing. |
| ID @ VWM | ≤1.0 µA - ultra-low reverse leakage preserves signal integrity and battery life in high-impedance sensing paths. |
| TJ max | +150 °C - extended junction temperature rating enables use in under-hood automotive and high-power industrial environments. |
| RθJA | 100 °C/W - thermal resistance from junction to ambient on standard 0.2" × 0.2" copper pads; informs PCB layout and derating requirements. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional - no polarity marking; symmetrical anode/cathode terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative half-cycle) | Conducts during negative surges; connects to protected line or ground return path depending on circuit topology. |
| Cathode | Transient current entry (positive half-cycle) | Conducts during positive surges; paired with anode to form bidirectional clamping path across protected node. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines (e.g., RS-485, CAN, USB D+/D−) without external polarity management. |
| AEC-Q101 qualified | Validated for automotive applications including engine control modules, ADAS sensors, and infotainment interfaces requiring reliability under thermal cycling and vibration. |
| 600 W peak pulse power | Withstands IEC 61000-4-5 Level 4 (4 kV) surge events on 50 Ω source impedance when properly mounted on recommended copper pads. |
| MSL level 1 moisture sensitivity | Allows unlimited floor life and standard reflow profiles up to 260 °C peak - eliminates baking requirements and streamlines SMT production. |
| Glass-passivated junction | Ensures long-term stability of VBR and leakage performance across humidity, temperature, and operational lifetime stress conditions. |
Applications
| Automotive Sensor Interface | Industrial Analog Input Protection |
|---|---|
|
Use Scenario: Protecting LIN bus transceivers and temperature/pressure sensor outputs in engine bay modules exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional TVS placed between sensor output and microcontroller ADC input to clamp transients before signal conditioning circuitry. Use Value: Prevents latch-up or damage to 3.3 V/5 V ADC inputs while maintaining <1.0 µA leakage to avoid offset error in precision measurement paths. |
Use Scenario: Shielding 4–20 mA current loop receivers and thermocouple amplifiers in PLC analog input cards from field wiring surges. IC Role / Device Role / Timing Role: Parallel-connected TVS across input terminals to shunt induced common-mode transients before op-amp front-end stages. Use Value: Limits clamping voltage to 10.3 V, keeping differential amplifier inputs within absolute maximum ratings even during 1 kV/µs fast-rising transients. |
| Telecom Line Receiver Protection | USB Port ESD Suppression |
|
Use Scenario: Safeguarding Ethernet PHY magnetics secondary side and xDSL line drivers against lightning-induced surges entering via RJ-45 jacks. IC Role / Device Role / Timing Role: Bidirectional TVS installed across differential pair (e.g., TX+/TX−) to clamp mode-common transients without disrupting DC bias. Use Value: Achieves <1 ns response and 10.3 V clamping to preserve signal integrity in 100 Mbps+ data links while meeting IEC 61000-4-5 surge immunity. |
Use Scenario: ESD protection for USB 2.0 D+ and D− lines in portable medical devices and industrial handhelds subjected to ±15 kV contact discharge. IC Role / Device Role / Timing Role: Low-capacitance bidirectional TVS placed directly at USB connector to divert ESD current before reaching USB transceiver IC. Use Value: Sub-100 pF junction capacitance (typ.) avoids signal rise-time degradation, while 10.3 V clamping prevents transceiver latch-up during HBM ESD events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.0CA-E3/52 | Commercial-grade (non-AEC-Q101), same VWM/VBR/PPPM, identical SMB package and pinout. | Lacks automotive qualification; suitable for consumer/industrial designs not requiring AEC-Q101 traceability or extended temperature validation. | Select when cost sensitivity outweighs automotive reliability requirements and lifecycle assurance is not mandated. |
| SMCJ6.0CAHE3_A/I | Same AEC-Q101 qualification but in larger SMC (DO-214AB) package; 1500 W PPPM rating and lower RθJA (50 °C/W). | Higher power handling and better thermal performance; requires larger PCB footprint and different pad layout. | Choose for higher-energy surge environments (e.g., motor drive I/O) where 600 W is insufficient and board space allows SMC footprint. |
Compared with SMBJ6.0CAHE3_A/I, the E3/52 variant offers identical electrical protection in non-automotive settings, while the SMCJ6.0CAHE3_A/I provides 2.5× higher surge capacity at the cost of increased size - enabling trade-offs between board area, thermal margin, and qualification scope.
Availability
SMBJ6.0CAHE3_A/I is available at Aetrix Electronics and suitable for automotive electronics, industrial I/O modules, and telecom infrastructure requiring stable component supply with AEC-Q101 qualification and RoHS-compliant sourcing.
Supply support for SMBJ6.0CAHE3_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 diodes, rectifiers, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMBJ series targets high-reliability transient suppression in space-constrained, high-surge environments - engineered for automotive, industrial, and telecom systems demanding consistent clamping performance and long-term stability.
FAQ
What is the clamping voltage of SMBJ6.0CAHE3_A/I at its rated peak pulse current?
The SMBJ6.0CAHE3_A/I clamps to a maximum of 10.3 V at its rated peak pulse current (IPPM) of 58.3 A, measured under the standardized 10/1000 µs waveform. This value defines the upper voltage limit imposed on protected circuitry during a full 600 W surge event and is critical for verifying compatibility with downstream IC absolute maximum ratings. The SMBJ6.0CAHE3_A/I maintains this clamping performance across its qualified operating temperature range.
Is SMBJ6.0CAHE3_A/I suitable for automotive applications?
Yes, SMBJ6.0CAHE3_A/I is AEC-Q101 qualified and specifically designed for automotive use, with validation across temperature cycling, mechanical shock, and humidity testing per the AEC standard. Its −55 °C to +150 °C operating junction range, MSL level 1 reflow compatibility, and RoHS-compliant construction meet Tier-1 supplier requirements for engine control units, body electronics, and ADAS sensor interfaces. The SMBJ6.0CAHE3_A/I carries the HE3 suffix denoting this qualification.
How does the bidirectional configuration of SMBJ6.0CAHE3_A/I affect its circuit implementation?
The bidirectional configuration of SMBJ6.0CAHE3_A/I means it functions identically for both positive and negative transients - eliminating the need for polarity awareness during placement and enabling direct protection of AC-coupled or floating nodes like RS-485 buses, CAN differential pairs, or transformer-coupled telecom lines. Unlike unidirectional TVS diodes, SMBJ6.0CAHE3_A/I has no cathode band marking and conducts symmetrically, simplifying layout and reducing BOM count in differential or dual-rail systems.
What is the maximum reverse leakage current of SMBJ6.0CAHE3_A/I at its stand-off voltage?
The SMBJ6.0CAHE3_A/I exhibits a maximum reverse leakage current (ID) of 1.0 µA at its 6.0 V stand-off voltage (VWM), measured at 25 °C. This ultra-low leakage preserves signal fidelity in high-impedance sensor paths and minimizes quiescent power loss in battery-powered systems. Leakage remains below 5 µA across the full −55 °C to +125 °C operating range, ensuring consistent performance in harsh thermal environments. The SMBJ6.0CAHE3_A/I achieves this via glass-passivated junction technology.
Does SMBJ6.0CAHE3_A/I require heatsinking for standard operation?
No, SMBJ6.0CAHE3_A/I does not require external heatsinking for transient suppression duty cycles (e.g., single or infrequent surges), as its 600 W peak rating is defined with standard 0.2" × 0.2" copper pads per terminal - sufficient for thermal dissipation during short-duration events. However, for repetitive surge applications (>0.01% duty cycle), PCB copper area must be increased beyond minimum pads to maintain junction temperature below +150 °C. The SMBJ6.0CAHE3_A/I's RθJA of 100 °C/W reflects this baseline thermal condition.
SMBJ6.0CAHE3_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):
- 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_A/I FAQ
1.How can I place an order for SMBJ6.0CAHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ6.0CAHE3_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 SMBJ6.0CAHE3_A/I reliable?
The price and inventory of SMBJ6.0CAHE3_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 SMBJ6.0CAHE3_A/I is usually 5 days.
3.What payment methods are accepted for SMBJ6.0CAHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ6.0CAHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ6.0CAHE3_A/I?
SMBJ6.0CAHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ6.0CAHE3_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 SMBJ6.0CAHE3_A/I?
For technical support, including SMBJ6.0CAHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ6.0CAHE3_A/I requirements.
6.How does Aetrix verify that SMBJ6.0CAHE3_A/I is sourced from the original manufacturer or authorized distributors?
All SMBJ6.0CAHE3_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 SMBJ6.0CAHE3_A/I meets industry standards.
7.What is the process for return or replacement of SMBJ6.0CAHE3_A/I?
All SMBJ6.0CAHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ6.0CAHE3_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 SMBJ6.0CAHE3_A/I part is unused and in its original packaging.
Return procedure for SMBJ6.0CAHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ6.0CAHE3_A/I Tags

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