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Vishay General Semiconductor - Diodes Division SMCJ10HE3/9AT
- Part No.:
- SMCJ10HE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ10HE3/9AT.pdf
- Description:
- TVS DIODE 10VWM 18.8VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,252
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Product details
Overview
SMCJ10HE3/9AT from Vishay General Semiconductor is a surface-mount, AEC-Q101-qualified, uni-directional Transient Voltage Suppressor (TVS) diode in DO-214AB (SMCJ) package. It features a 10 V stand-off voltage (VWM), 11.1–12.3 V breakdown voltage (VBR) at 1 mA, 17.0 V clamping voltage (VC) at 88.2 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM) with 10/1000 µs waveform. It protects automotive power rails and signal lines against ESD and load-dump transients.
For engineers reviewing the SMCJ10HE3/9AT datasheet, SMCJ10HE3/9AT pinout, SMCJ10HE3/9AT application, or SMCJ10HE3/9AT equivalent, this device is selected for high-reliability transient suppression where AEC-Q101 qualification, low clamping ratio, and robust surge handling (200 A IFSM) are required in space-constrained automotive ECUs and industrial controllers.
Technical Context
This TVS diode operates as a uni-directional clamping device with cathode-banded polarity, designed to shunt transient energy to ground when reverse voltage exceeds VBR. Its glass-passivated junction ensures stable leakage (<5.0 µA at VWM) and fast response time (<1.0 ns), critical for protecting MOSFET gates and microcontroller I/O pins.
The device complies with AEC-Q101 stress testing for automotive use and meets MSL Level 1 per J-STD-020 (260 °C peak reflow). Its thermal resistance (RθJA = 75 °C/W) and junction temperature range (–55 °C to +150 °C) support operation in under-hood environments without forced cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC bias margin for 12 V automotive systems. |
| VBR min/max | 11.1 V / 12.3 V at 1 mA - Confirmed breakdown window ensures predictable turn-on across production lots and temperature. |
| VC @ IPPM | 17.0 V at 88.2 A - Clamping voltage during 10/1000 µs surge; limits downstream IC stress to <17 V during 1500 W transient events. |
| PPPM | 1500 W - Peak pulse power rating with standard 10/1000 µs waveform; enables protection against ISO 7637-2 Pulse 1 & 2a transients. |
| ID @ VWM | ≤5.0 µA - Reverse leakage at stand-off voltage; ensures minimal quiescent power loss in always-on vehicle modules. |
| TJ max | +150 °C - Maximum junction temperature; supports placement near heat-generating components in engine control units. |
| IFSM | 200 A - Non-repetitive forward surge rating (8.3 ms half-sine); withstands accidental reverse-bias misapplication or inrush events. |
Pinout & Package
Package: DO-214AB (SMCJ), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002. Cathode identified by molded band on one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to protected line (e.g., 12 V rail); conducts only during forward surge or miswiring. |
| Cathode | Clamping reference terminal | Connected to ground; initiates avalanche breakdown when reverse voltage exceeds VBR, diverting surge current. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive under-hood use including temperature cycling, humidity bias, and mechanical shock per JESD22 standards. |
| Glass-passivated junction | Ensures long-term stability of VBR and leakage performance across 15-year vehicle lifetimes and >1000 thermal cycles. |
| Low incremental surge resistance | Minimizes VC rise under high di/dt conditions, improving clamping precision for fast-rising transients like ESD. |
| MSL Level 1 rating | Enables standard SMT reflow without moisture-induced popcorning; no bake-out required prior to assembly. |
| RoHS-compliant HE3 suffix | Indicates AEC-Q101 qualification and JESD201 Class 2 whisker resistance-critical for high-vibration automotive harnesses. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V supply inputs in engine control units (ECUs) against ISO 7637-2 load-dump transients up to 35 V. IC Role / Device Role / Timing Role: Uni-directional TVS clamping device placed between battery feed and LDO input. Use Value: Limits voltage seen by downstream regulators to ≤17.0 V during 1500 W surges, preventing latch-up or overvoltage damage. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events in factory automation. IC Role / Device Role / Timing Role: Line-side transient suppressor on 4–20 mA or 0–10 V output paths. Use Value: Sub-1 ns response and <5 µA leakage preserve signal integrity and measurement accuracy while surviving ±8 kV contact ESD. |
| DC Motor Drive Gate Protection | On-Board Charger (OBC) Control Logic |
Use Scenario: Safeguarding high-side N-channel MOSFET gate drivers in brushed DC motor controllers from inductive kickback. IC Role / Device Role / Timing Role: Clamp diode connected between gate and source to absorb negative VGS spikes. Use Value: 17.0 V clamping prevents gate oxide rupture during 200 A IFSM-rated switching events, extending FET lifetime. |
Use Scenario: Protecting microcontroller GPIOs and communication lines (CAN, UART) in electric vehicle OBCs exposed to conducted noise. IC Role / Device Role / Timing Role: Secondary-level TVS on isolated digital interfaces downstream of main AC/DC stage. Use Value: AEC-Q101 qualification and 150 °C TJ rating ensure reliability in sealed, thermally constrained OBC enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10AHE3/A | Lower PPPM (400 W), smaller DO-214AC (SMA) package, same VWM/VBR/VC specs. | Not rated for 1500 W load-dump events; suitable only for ESD/lightning secondary protection. | Select when board space is critical and surge energy is limited to <400 W (e.g., USB port protection). |
| SMCJ10A-E3/9AT | Same electrical specs but commercial-grade (non-AEC-Q101), HE3 → E3 suffix change. | Lacks automotive qualification; not approved for safety-critical vehicle subsystems. | Use only in non-automotive industrial or consumer designs where AEC-Q101 is not mandated. |
Compared with SMCJ10HE3/9AT, SMAJ10AHE3/A offers footprint reduction at the cost of 73 % lower surge capacity, while SMCJ10A-E3/9AT matches performance but omits automotive qualification-making SMCJ10HE3/9AT the sole choice for AEC-Q101–compliant 1500 W transient suppression.
Availability
SMCJ10HE3/9AT is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and DC motor drive circuits requiring stable component supply and full AEC-Q101 traceability.
Supply support for SMCJ10HE3/9AT 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, and protection devices with emphasis on reliability and automotive-grade validation.
The SMCJ series was developed specifically for high-energy transient suppression in harsh automotive and industrial environments, targeting ISO 7637-2 and IEC 61000-4-5 compliance with robust thermal and mechanical robustness.
FAQ
What is the clamping voltage of the SMCJ10HE3/9AT under a 10/1000 µs surge?
The SMCJ10HE3/9AT has a maximum clamping voltage (VC) of 17.0 V at 88.2 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and ensures downstream circuitry remains below critical overvoltage thresholds during standardized surge events. The SMCJ10HE3/9AT maintains this clamping performance across its full operating temperature range.
Is the SMCJ10HE3/9AT qualified for automotive applications?
Yes, the SMCJ10HE3/9AT is AEC-Q101 qualified, verified through stress tests including temperature cycling, high-temperature operating life, and mechanical shock. The HE3 suffix explicitly denotes AEC-Q101 compliance and JESD201 Class 2 whisker resistance-making the SMCJ10HE3/9AT suitable for engine control, body electronics, and ADAS modules.
What does the "HE3" suffix mean in SMCJ10HE3/9AT?
The "HE3" suffix indicates RoHS-compliant construction with AEC-Q101 qualification and JESD201 Class 2 whisker resistance. It distinguishes the part from commercial-grade variants (e.g., E3 suffix only) and confirms suitability for automotive under-hood applications. The SMCJ10HE3/9AT's HE3 marking is laser-etched on the DO-214AB body per Vishay's packaging standard.
Can the SMCJ10HE3/9AT be used in bi-directional configurations?
No, the SMCJ10HE3/9AT is a uni-directional TVS diode, identifiable by its cathode band marking. Bi-directional operation requires the CA suffix (e.g., SMCJ10CA). Using the SMCJ10HE3/9AT in reverse-biased AC applications would result in forward conduction and potential failure; the SMCJ10HE3/9AT must be oriented with cathode toward the protected line's ground reference.
What is the maximum junction temperature rating for the SMCJ10HE3/9AT?
The SMCJ10HE3/9AT has a maximum junction temperature (TJ max) of +150 °C, validated per AEC-Q101 requirements. This allows reliable operation in high-ambient environments such as engine compartments or sealed industrial enclosures. Derating curves in the datasheet (Fig. 2) define usable power dissipation down to 0 W at 150 °C ambient when mounted on minimum pad layout.
SMCJ10HE3/9AT 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):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 18.8V
- Current - Peak Pulse (10/1000µs):
- 79.8A
- 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)
SMCJ10HE3/9AT FAQ
1.How can I place an order for SMCJ10HE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ10HE3/9AT 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 SMCJ10HE3/9AT reliable?
The price and inventory of SMCJ10HE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ10HE3/9AT is usually 5 days.
3.What payment methods are accepted for SMCJ10HE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ10HE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ10HE3/9AT?
SMCJ10HE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ10HE3/9AT 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 SMCJ10HE3/9AT?
For technical support, including SMCJ10HE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ10HE3/9AT requirements.
6.How does Aetrix verify that SMCJ10HE3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCJ10HE3/9AT 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 SMCJ10HE3/9AT meets industry standards.
7.What is the process for return or replacement of SMCJ10HE3/9AT?
All SMCJ10HE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ10HE3/9AT, 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 SMCJ10HE3/9AT part is unused and in its original packaging.
Return procedure for SMCJ10HE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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