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Vishay General Semiconductor - Diodes Division SMCJ6.0HE3/9AT
- Part No.:
- SMCJ6.0HE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ6.0HE3/9AT.pdf
- Description:
- TVS DIODE 6VWM 11.4VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,175
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Product details
Overview
SMCJ6.0HE3/9AT from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-214AB (SMCJ) package, designed for robust overvoltage protection of sensitive electronics. It features a 6.0 V stand-off voltage (VWM), 6.67–7.37 V breakdown voltage (VBR) at 10 mA, 1500 W peak pulse power (10/1000 µs), 145.6 A peak pulse current (IPPM), and clamps to ≤10.3 V at rated surge. It is AEC-Q101 qualified and used in automotive power line and sensor interface protection.
For engineers reviewing the SMCJ6.0HE3/9AT datasheet, SMCJ6.0HE3/9AT pinout, SMCJ6.0HE3/9AT application, or SMCJ6.0HE3/9AT equivalent, this page delivers verified electrical parameters, polarity marking guidance, thermal resistance data (RθJA = 75 °C/W), RoHS and whisker-test compliance (JESD 201 Class 2), and real-world use context for industrial and automotive ESD/surge hardening.
Technical Context
The SMCJ6.0HE3/9AT operates as a unidirectional silicon avalanche diode with glass-passivated junction, enabling fast response (<1 ns) to transients and low incremental surge resistance. Its bi-directional-capable family architecture supports both uni- and bi-directional variants, but this specific part is unidirectional - indicated by absence of "CA" suffix and cathode band marking.
It is rated for -55 °C to +150 °C operating junction temperature, derated above 25 °C per Fig. 2, and mounted on 8.0 mm × 8.0 mm copper pads per JEDEC standard test conditions. Thermal resistance from junction to ambient is 75 °C/W, and junction-to-lead is 15 °C/W - critical for PCB layout and heatsinking decisions in high-reliability automotive modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.0 V - maximum reverse working voltage before clamping begins; sets upper limit for normal circuit operation without leakage activation |
| VBR min/max | 6.67 V / 7.37 V at IT = 10 mA - ensures reliable avalanche initiation within tight tolerance for predictable clamping onset |
| VC @ IPPM | ≤10.3 V at 145.6 A - defines worst-case clamped voltage during 10/1000 µs surge, protecting downstream ICs with <12 V absolute max ratings |
| PPPM | 1500 W - peak transient energy handling capacity under standardized 10/1000 µs waveform, supporting ISO 7637-2 Pulse 1/2/5a compliance |
| ID @ VWM | 1000 µA max - low reverse leakage at stand-off ensures minimal power loss and signal integrity in always-on sensor lines |
| TJ max | +150 °C - enables deployment in under-hood automotive environments and industrial motor drive control units |
| RθJA | 75 °C/W - quantifies self-heating under surge; requires ≥8 mm² copper pad per terminal for full-rated performance |
Pinout & Package
Package: DO-214AB (SMCJ), surface-mount, low-profile, RoHS-compliant matte tin-plated leads. Cathode identified by molded band on case end - critical for correct orientation in series-connected protection circuits.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path (cathode-biased during surge) | Connected to protected line; conducts only during reverse-biased transient events - must be routed with low-inductance trace |
| Cathode | Reference terminal (marked with band) | Typically tied to ground or lower-potential rail; polarity error causes open-circuit failure mode - visual inspection mandatory |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance - required for engine control, ADAS, and body electronics |
| Glass-passivated junction | Ensures stable VBR over lifetime and immunity to moisture-induced parameter drift in humid underhood environments |
| JESD 201 Class 2 whisker resistance | Prevents tin whisker growth under thermal stress - eliminates latent short-circuit risk in long-life automotive modules |
| MSL Level 1 (260 °C peak) | Enables standard lead-free reflow without preconditioning - simplifies manufacturing and avoids moisture-related popcorning |
| UL 94 V-0 molding compound | Self-extinguishing encapsulation meets automotive flammability requirements for battery management and infotainment systems |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump (ISO 7637-2 Pulse 5a) and alternator switching transients. IC Role / Device Role / Timing Role: Primary clamping device placed at board-level input filter stage, shunting surge energy to chassis ground before reaching DC-DC converters and microcontrollers. Use Value: Clamps to ≤10.3 V at 145.6 A, ensuring downstream 12 V-rated regulators and CAN transceivers remain within safe operating area during 100 V/50 ms surges. | Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) in PLC I/O modules exposed to relay coil flyback and EMI coupling. IC Role / Device Role / Timing Role: Unidirectional TVS placed across sensor output and ground, suppressing sub-100 ns spikes induced by nearby inductive switching. Use Value: Sub-1 ns response time and 1000 µA leakage at 6.0 V preserve signal fidelity and minimize offset errors in 16-bit ADC front-ends. |
| Telecom DC Power Input Protection | Consumer Device USB Port Protection |
Use Scenario: Hardening 48 V PoE-powered telecom equipment inputs against lightning-induced surges and hot-swap transients. IC Role / Device Role / Timing Role: First-line transient suppressor upstream of primary DC-DC converter, sized to absorb 1500 W pulses without degradation. Use Value: 1500 W PPPM rating and 75 °C/W RθJA allow sustained operation in sealed enclosures with limited airflow - validated per IEC 61000-4-5 Level 4. | Use Scenario: Adding secondary overvoltage protection to USB VBUS lines in portable medical monitors and smart home hubs. IC Role / Device Role / Timing Role: Low-leakage unidirectional clamp between VBUS and ground, triggered only during >6.67 V faults while remaining transparent during 5.0 ± 0.25 V nominal operation. Use Value: 1000 µA max ID at 6.0 V prevents battery drain in always-on devices; DO-214AB footprint allows placement adjacent to USB connector without crowding. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ6.0A-E3/61T | Lower PPPM (400 W), smaller SMA package (DO-214AC), higher RθJA (110 °C/W) | Suitable for space-constrained consumer boards with lower surge exposure (IEC 61000-4-2 only) | Select when cost and size outweigh automotive-grade surge margin and thermal performance |
| 1.5SMC6.0A | Same DO-214AB package and 1500 W rating, but commercial-grade (non-AEC-Q101), JESD 201 Class 1A whisker test | Applicable in industrial automation where AEC-Q101 is not mandated but DO-214AB mechanical robustness is needed | Select when automotive qualification is unnecessary but identical surge capability and thermal design are retained |
Compared with SMCJ6.0HE3/9AT, SMAJ6.0A-E3/61T trades surge margin and thermal resilience for compactness, while 1.5SMC6.0A retains identical electrical and mechanical specs but omits automotive qualification - making SMCJ6.0HE3/9AT the sole choice for AEC-Q101–mandated vehicle subsystems requiring proven long-term reliability under thermal cycling and vibration.
Availability
SMCJ6.0HE3/9AT is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom power input stages requiring stable component supply with full AEC-Q101 traceability and RoHS compliance.
Supply support for SMCJ6.0HE3/9AT 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 SMCJ series was engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where failure modes must be fail-open and parametric stability over temperature and lifetime is non-negotiable.
FAQ
What is the polarity configuration of the SMCJ6.0HE3/9AT?
The SMCJ6.0HE3/9AT is a unidirectional TVS diode, with cathode identified by a molded band on the DO-214AB package. This polarity must be observed during PCB layout - reverse installation renders the device non-functional for surge suppression. The band aligns with the cathode terminal, which should connect to the system ground or lowest-potential reference point in the protected circuit.
Does the SMCJ6.0HE3/9AT meet automotive qualification standards?
Yes, the SMCJ6.0HE3/9AT is AEC-Q101 qualified, as confirmed by Vishay's documentation (Document Number 88394, Revision 11-Dec-12). This qualification covers stress tests including high-temperature reverse bias, temperature cycling, and surge endurance - validating its suitability for engine control units, body electronics, and ADAS modules where reliability under thermal and mechanical stress is critical. The "HE3" suffix explicitly denotes AEC-Q101 compliance.
What is the clamping voltage of the SMCJ6.0HE3/9AT under maximum rated surge current?
The SMCJ6.0HE3/9AT clamps to a maximum of 10.3 V at its rated peak pulse current (IPPM) of 145.6 A, measured using the standardized 10/1000 µs waveform. This value is guaranteed across the full operating temperature range and ensures downstream components with 12 V absolute maximum ratings remain protected. Clamping voltage is measured after the device enters avalanche breakdown and stabilizes under surge conditions.
How does the SMCJ6.0HE3/9AT differ from the bi-directional SMCJ6.0CA variant?
The SMCJ6.0HE3/9AT is unidirectional and features a cathode band for polarity identification, whereas the SMCJ6.0CA is bi-directional with no polarity marking and symmetrical breakdown in both directions. Electrically, SMCJ6.0CA has identical VBR (6.67–7.37 V), VWM (6.0 V), and PPPM (1500 W), but its dual-path structure makes it suitable for AC signal lines or floating buses. SMCJ6.0HE3/9AT is intended for DC power rails where ground-referenced clamping is required.
What PCB layout considerations apply to the SMCJ6.0HE3/9AT for optimal surge performance?
For optimal surge performance, the SMCJ6.0HE3/9AT must be mounted on minimum 8.0 mm × 8.0 mm copper pads per terminal, as specified in Vishay's test conditions. Short, wide traces between the device and protected node/ground minimize inductance that could elevate clamping voltage. Thermal relief should be avoided on cathode/anode pads to maintain low RθJA (75 °C/W); thermal vias under pads are recommended for high-duty-cycle applications. Avoid routing noisy signals near the device body to prevent coupling.
SMCJ6.0HE3/9AT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 6V
- Voltage - Breakdown (Min):
- 6.67V
- Voltage - Clamping (Max) @ Ipp:
- 11.4V
- Current - Peak Pulse (10/1000µs):
- 131.6A
- Power - Peak Pulse:
- 1500W (1.5kW)
- 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-214AB (SMCJ)
SMCJ6.0HE3/9AT FAQ
1.How can I place an order for SMCJ6.0HE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ6.0HE3/9AT 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 SMCJ6.0HE3/9AT reliable?
The price and inventory of SMCJ6.0HE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ6.0HE3/9AT is usually 5 days.
3.What payment methods are accepted for SMCJ6.0HE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ6.0HE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ6.0HE3/9AT?
SMCJ6.0HE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ6.0HE3/9AT 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 SMCJ6.0HE3/9AT?
For technical support, including SMCJ6.0HE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ6.0HE3/9AT requirements.
6.How does Aetrix verify that SMCJ6.0HE3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCJ6.0HE3/9AT 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 SMCJ6.0HE3/9AT meets industry standards.
7.What is the process for return or replacement of SMCJ6.0HE3/9AT?
All SMCJ6.0HE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ6.0HE3/9AT, 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 SMCJ6.0HE3/9AT part is unused and in its original packaging.
Return procedure for SMCJ6.0HE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ6.0HE3/9AT Tags
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