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Vishay General Semiconductor - Diodes Division SMCJ16HE3/9AT
- Part No.:
- SMCJ16HE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ16HE3/9AT.pdf
- Description:
- TVS DIODE 16VWM 28.8VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,355
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Product details
Overview
SMCJ16HE3/9AT 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 16 V standoff voltage (VWM), 26.0 V maximum clamping voltage (VC) at 57.7 A peak pulse current, and 1500 W peak pulse power dissipation with 10/1000 µs waveform - ideal for automotive power line and industrial sensor interface protection.
For engineers reviewing the SMCJ16HE3/9AT datasheet, SMCJ16HE3/9AT pinout, SMCJ16HE3/9AT application, or SMCJ16HE3/9AT equivalent, this AEC-Q101 qualified, RoHS-compliant TVS offers verified surge immunity for 12 V automotive systems, I/O port ESD hardening, and DC power rail transient suppression where low clamping voltage and fast response (<1 ps) are critical.
Technical Context
The SMCJ16HE3/9AT operates as a unidirectional avalanche diode, triggering when reverse voltage exceeds its 17.8–19.7 V breakdown range (VBR at 1 mA). Its glass-passivated junction ensures stable leakage (<1.0 µA at 16 V) and repeatable clamping performance under repetitive transients.
Thermally, it delivers 6.5 W steady-state power dissipation on infinite heatsink at 50 °C ambient and exhibits RθJA = 75 °C/W and RθJL = 15 °C/W - enabling reliable operation up to +150 °C junction temperature in compact PCB layouts with 8.0 mm × 8.0 mm copper pads per terminal.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 16 V - Maximum continuous reverse operating voltage before conduction begins; defines safe operating margin for 12 V nominal systems. |
| VBR (Breakdown Voltage) | 17.8–19.7 V at 1 mA - Confirmed avalanche onset range; ensures predictable turn-on during transients without premature leakage. |
| VC (Clamping Voltage) | 26.0 V at 57.7 A (10/1000 µs) - Limits downstream voltage stress during surge events; enables compatibility with 30 V-rated ICs and MOSFETs. |
| PPPM (Peak Pulse Power) | 1500 W - Sustains high-energy surges (e.g., ISO 7637-2 Pulse 1/2a/5a) without failure when mounted per recommended pad layout. |
| IPPM (Peak Pulse Current) | 57.7 A - Withstands automotive load dump and inductive switching spikes; derates linearly above 25 °C ambient. |
| TJmax | +150 °C - Supports under-hood automotive deployment and industrial environments with elevated ambient temperatures. |
| AEC-Q101 Qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance - required for ECUs and body control modules. |
Pinout & Package
Package: DO-214AB (SMCJ), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Cathode indicated by band marking on one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path (for uni-directional operation) | Connected to system ground or low-side return; conducts during forward surge or ESD events in specific configurations. |
| Cathode | Reverse-biased clamping node | Connected to protected line (e.g., 12 V rail); avalanches into low-impedance state when VREV > VBR, shunting surge current to ground. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive electronics including engine control, infotainment, and ADAS subsystems requiring long-term reliability under thermal and mechanical stress. |
| Glass-passivated junction | Ensures stable VBR tolerance and low leakage across temperature (-55 to +150 °C), critical for precision sensor front-ends. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., EFT bursts), improving protection margin for 3.3 V/5 V logic interfaces. |
| MSL Level 1 (260 °C peak reflow) | Enables standard lead-free SMT assembly without moisture-related cracking or delamination risks. |
| RoHS-compliant, HE3 suffix | Meets JESD 201 Class 2 whisker resistance - suitable for high-reliability industrial and automotive applications with extended field life. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role: Primary clamping device placed between power input and bulk capacitor, shunting surge energy to chassis ground. Use Value: Clamps to ≤26.0 V at 57.7 A, preventing damage to 30 V-rated power management ICs and microcontrollers. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events in factory automation. IC Role / Device Role: Line-to-ground TVS on differential or single-ended signal traces adjacent to connector entry points. Use Value: Sub-1 ns response time and <1.0 µA leakage at 16 V preserve signal integrity and ADC accuracy in low-power sensor nodes. |
| DC Motor Drive Input Stage | Telecom Power Supply Input |
|
Use Scenario: Suppressing inductive kickback from brushed DC motors in HVAC actuators and seat controls. IC Role / Device Role: Uni-directional TVS connected anode-to-ground, cathode-to-motor supply rail, absorbing reverse EMF spikes. Use Value: 1500 W peak power rating handles repeated 100 ms motor stall surges without degradation or thermal runaway. |
Use Scenario: Safeguarding AC/DC and DC/DC converter inputs in telecom base station power modules exposed to lightning-induced surges. IC Role / Device Role: First-stage transient suppressor upstream of input filter and rectifier, rated for 10/1000 µs waveform compliance. Use Value: 26.0 V clamping voltage allows use with 24 V nominal telecom systems while maintaining >10 V safety margin for downstream components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16AHE3/52T | Lower PPPM (600 W), smaller SMB (DO-214AA) package, same VWM/VC specs. | Suitable for space-constrained consumer or non-automotive industrial designs with lower surge exposure. | Select when board area is limited and peak surge energy does not exceed 600 W; verify thermal derating for sustained duty cycles. |
| SMCJ16A-E3/9AT | Same electrical specs and DO-214AB package, but commercial-grade (non-AEC-Q101) and E3 (Class 1A whisker) instead of HE3 (Class 2). | Appropriate for cost-sensitive industrial or computing applications where automotive qualification is not mandated. | Choose for non-automotive BOMs requiring identical clamping performance but without AEC-Q101 validation or enhanced whisker resistance. |
Compared with SMCJ16HE3/9AT, SMBJ16AHE3/52T trades surge capacity for footprint reduction, while SMCJ16A-E3/9AT retains full electrical equivalence but omits automotive qualification - making the HE3 variant the only choice for AEC-Q101–mandated deployments.
Availability
SMCJ16HE3/9AT 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 long-term lifecycle assurance.
Supply support for SMCJ16HE3/9AT 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, efficiency, and application-specific optimization.
The SMCJ series was engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where robustness, AEC-Q101 compliance, and precise clamping are mandatory.
FAQ
What is the clamping voltage of the SMCJ16HE3/9AT at its rated peak pulse current?
The SMCJ16HE3/9AT has a maximum clamping voltage (VC) of 26.0 V at 57.7 A peak pulse current with a 10/1000 µs waveform. This value is measured under standardized test conditions per ANSI/IEEE C62.35 and confirmed in Vishay's datasheet revision 11-Dec-12. The SMCJ16HE3/9AT maintains this clamping performance across its qualified operating temperature range.
Is the SMCJ16HE3/9AT suitable for automotive applications?
Yes, the SMCJ16HE3/9AT is AEC-Q101 qualified and explicitly rated for automotive use, including engine control units, body electronics, and infotainment systems. Its HE3 suffix denotes compliance with JESD 201 Class 2 whisker testing and RoHS requirements - both essential for automotive-grade supply chains. The SMCJ16HE3/9AT meets ISO 7637-2 surge immunity requirements when properly mounted.
What does the "HE3" suffix indicate in SMCJ16HE3/9AT?
The "HE3" suffix in SMCJ16HE3/9AT signifies two key qualifications: "H" denotes AEC-Q101 qualification, and "E3" indicates RoHS compliance with JESD 201 Class 1A whisker resistance. This distinguishes it from the commercial "E3" variant (e.g., SMCJ16A-E3/9AT), which lacks automotive qualification. The SMCJ16HE3/9AT is therefore certified for high-reliability automotive and industrial deployments.
How does the SMCJ16HE3/9AT differ from bi-directional SMCJ16CA variants?
The SMCJ16HE3/9AT is unidirectional, meaning it conducts only in reverse bias above VBR and blocks forward current - ideal for DC power rail protection. In contrast, SMCJ16CA is bi-directional with symmetrical clamping in both polarities, suited for AC lines or data bus protection. The SMCJ16HE3/9AT has a cathode band marking; bi-directional types have no polarity marking. Electrical parameters like VC and PPPM are identical, but circuit integration differs fundamentally.
What PCB layout guidance applies to the SMCJ16HE3/9AT for optimal thermal and surge performance?
Vishay specifies mounting the SMCJ16HE3/9AT on minimum 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal to achieve rated 1500 W pulse power and proper thermal dissipation. Use short, wide traces to minimize inductance in the surge path, and ensure ground plane connectivity beneath the device. The SMCJ16HE3/9AT's RθJA of 75 °C/W assumes this layout - deviating reduces surge capability and increases junction temperature.
SMCJ16HE3/9AT 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):
- 16V
- Voltage - Breakdown (Min):
- 17.8V
- Voltage - Clamping (Max) @ Ipp:
- 28.8V
- Current - Peak Pulse (10/1000µs):
- 52.1A
- 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)
SMCJ16HE3/9AT FAQ
1.How can I place an order for SMCJ16HE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ16HE3/9AT 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 SMCJ16HE3/9AT reliable?
The price and inventory of SMCJ16HE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ16HE3/9AT is usually 5 days.
3.What payment methods are accepted for SMCJ16HE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ16HE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ16HE3/9AT?
SMCJ16HE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ16HE3/9AT 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 SMCJ16HE3/9AT?
For technical support, including SMCJ16HE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ16HE3/9AT requirements.
6.How does Aetrix verify that SMCJ16HE3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCJ16HE3/9AT 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 SMCJ16HE3/9AT meets industry standards.
7.What is the process for return or replacement of SMCJ16HE3/9AT?
All SMCJ16HE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ16HE3/9AT, 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 SMCJ16HE3/9AT part is unused and in its original packaging.
Return procedure for SMCJ16HE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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