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Vishay General Semiconductor - Diodes Division SMCJ16-E3/9AT
- Part No.:
- SMCJ16-E3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ16-E3/9AT.pdf
- Description:
- TVS DIODE 16VWM 28.8VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,729
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Product details
Overview
SMCJ16-E3/9AT from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-214AB (SMCJ) package, designed for robust overvoltage protection of DC power rails and signal lines. It features a 16 V standoff voltage (VWM), 26.0 V clamping voltage (VC) at 57.7 A peak pulse current, 1500 W peak pulse power rating (10/1000 µs), and AEC-Q101 qualification - making it suitable for automotive power supply rail protection against load dump and inductive switching transients.
For engineers reviewing the SMCJ16-E3/9AT datasheet, SMCJ16-E3/9AT pinout, SMCJ16-E3/9AT application, or SMCJ16-E3/9AT equivalent, key selection criteria include its unidirectional polarity, 1.0 µA max reverse leakage at VWM, 17.8–19.7 V breakdown range (IT = 1.0 mA), 150 °C max junction temperature, and RoHS-compliant matte tin-plated leads per J-STD-002.
Technical Context
The SMCJ16-E3/9AT operates as a silicon avalanche diode with glass-passivated junction, delivering fast response (<1 ps) to transient overvoltages and low incremental surge resistance for stable clamping under high-energy surges. Its unidirectional configuration enables integration into DC-biased circuits where polarity-sensitive protection is required, such as 12 V automotive ECUs and industrial PLC I/O modules.
Rated for 1500 W peak pulse power (10/1000 µs waveform), it sustains 57.7 A peak pulse current while clamping to ≤26.0 V - ensuring downstream ICs like microcontrollers and CAN transceivers remain within safe operating voltage limits. Thermal resistance is 75 °C/W (junction-to-ambient) on standard 8.0 mm × 8.0 mm copper pads, supporting reliable operation up to 150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 16 V - Maximum continuous reverse working voltage before significant conduction begins; defines protected circuit's normal operating voltage ceiling. |
| VBR (Breakdown Voltage) | 17.8–19.7 V at IT = 1.0 mA - Confirmed avalanche onset range; ensures predictable turn-on during transients without premature leakage. |
| VC (Clamping Voltage) | 26.0 V at IPPM = 57.7 A - Maximum voltage seen by protected circuit during full-rated surge; critical for IC voltage tolerance margining. |
| PPPM (Peak Pulse Power) | 1500 W (10/1000 µs) - Energy-handling capacity for standardized lightning/surge waveforms; validates suitability for ISO 7637-2 Pulse 5a/b compliance testing. |
| ID (Reverse Leakage) | ≤1.0 µA at VWM = 16 V - Negligible standby power loss and minimal impact on high-impedance sensor bias networks. |
| TJmax | 150 °C - Enables use in under-hood automotive environments and thermally constrained industrial enclosures without derating penalties. |
| Package | DO-214AB (SMCJ) - Surface-mount, low-profile package compatible with automated placement; meets UL 94 V-0 flammability and MSL Level 1 (260 °C reflow). |
Pinout & Package
SMCJ16-E3/9AT uses the DO-214AB (SMCJ) package: molded plastic case with J-bend leads, 0.320" (8.13 mm) body length, 0.220–0.246" (5.59–6.22 mm) width, and cathode band marking on the anode-side end. Leads are matte tin-plated, solderable per J-STD-002 and JESD 22-B102, with E3 suffix meeting JESD 201 Class 1A whisker test.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Current sink during forward conduction; connected to ground or low-side return path | Provides low-impedance discharge path for negative transients when used in unidirectional configuration. |
| Cathode (banded end) | Protected line connection; tied to input rail or signal line | Acts as high-impedance node until VWM exceeded; defines polarity-sensitive clamping direction relative to ground reference. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity testing, and mechanical shock - required for engine control, ADAS, and body electronics. |
| Glass passivated chip junction | Enhances long-term stability and moisture resistance versus epoxy-passivated alternatives, reducing parametric drift in humid industrial environments. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ESD, relay bounce), improving protection margin for 3.3 V/5 V logic interfaces. |
| MSL Level 1 (260 °C peak) | Enables single-reflow assembly without baking or special handling - reduces manufacturing cost and avoids moisture-induced popcorning. |
| RoHS-compliant, matte tin leads | Ensures compatibility with lead-free solder processes and eliminates tin whisker risk in high-reliability applications per JESD 201 Class 1A. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump transients (ISO 7637-2 Pulse 5a, up to 60 V/100 ms) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VBAT and chassis ground, clamping surges before they reach LDOs and MCU power pins. Use Value: Clamps to ≤26.0 V at 57.7 A, maintaining downstream ICs within absolute maximum ratings while surviving repeated 1500 W pulses. |
Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) in factory automation systems exposed to motor drive noise and relay switching. IC Role / Device Role / Timing Role: Low-leakage (≤1.0 µA) TVS on signal line between sensor and ADC input, referenced to system ground. Use Value: Prevents latch-up or damage to precision op-amps and SAR ADCs during 1 kV EFT bursts without degrading signal integrity via leakage or capacitance. |
| Telecom DC Power Input Protection | Consumer Device USB Port Protection |
|
Use Scenario: Shielding 48 V PoE-powered equipment inputs from induced surges on outdoor cabling and lightning-induced ground potential differences. IC Role / Device Role / Timing Role: Primary-level TVS on DC input rail upstream of DC/DC converter, sized for 1500 W surge handling. Use Value: Withstands multiple 10/1000 µs surges up to 1500 W without degradation, enabling compliance with IEC 61000-4-5 Level 4 (4 kV line-earth). |
Use Scenario: Adding secondary overvoltage protection on VBUS line of USB 2.0 host ports in smart home hubs and set-top boxes. IC Role / Device Role / Timing Role: Unidirectional clamp referenced to GND, positioned after primary fuse and upstream of USB switch IC. Use Value: Fast <1 ps response and 26.0 V clamping prevent damage to USB PHY transceivers during hot-plug ESD events and adapter overvoltage faults. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ16A-E3/61T | Lower PPPM (400 W), smaller SMA package (DO-214AC), same VWM/VC specs but reduced surge capability. | Suitable only for lower-energy transients (e.g., IEC 61000-4-2 ESD), not ISO 7637-2 or IEC 61000-4-5. | Select when board space is constrained and surge threat level is limited to human-body-model ESD. |
| SMCJ16CA-E3/9AT | Bi-directional variant (no polarity marking), identical VWM, VBR, VC, and PPPM, but rated for AC-coupled or floating-line protection. | Required for symmetric signal lines (e.g., RS-485, CAN bus) where voltage transients may swing above and below ground. | Choose for differential or AC-biased interfaces; not interchangeable with SMCJ16-E3/9AT in DC-biased unidirectional rails. |
Compared with SMAJ16A-E3/61T, SMCJ16-E3/9AT delivers 3.75× higher surge energy handling in the same footprint family; versus SMCJ16CA-E3/9AT, it provides polarity-specific clamping essential for grounded DC rails - eliminating false triggering on normal negative excursions.
Availability
SMCJ16-E3/9AT is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and telecom DC input surge suppression requiring stable component supply across high-volume production cycles.
Supply support for SMCJ16-E3/9AT 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 performance.
The SMCJ series was engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where AEC-Q101 qualification, 1500 W surge capability, and stable clamping under thermal stress are mandatory.
FAQ
What is the clamping voltage of the SMCJ16-E3/9AT at its rated peak pulse current?
The SMCJ16-E3/9AT has a maximum clamping voltage (VC) of 26.0 V at its rated peak pulse current (IPPM) of 57.7 A, measured using the standardized 10/1000 µs double-exponential waveform. This value is guaranteed across the full operating temperature range and confirms that protected circuitry remains below critical overvoltage thresholds during surge events. The SMCJ16-E3/9AT achieves this with low incremental surge resistance and a stable avalanche junction.
Is the SMCJ16-E3/9AT suitable for automotive applications?
Yes, the SMCJ16-E3/9AT is AEC-Q101 qualified and specifically designed for automotive use, including engine control units, body electronics, and ADAS modules. Its 150 °C maximum junction temperature, glass-passivated junction, and validated performance under temperature cycling and humidity stress meet automotive reliability requirements. The SMCJ16-E3/9AT is commonly deployed for 12 V rail protection against load dump and inductive switching transients per ISO 7637-2.
How does the SMCJ16-E3/9AT differ from the bi-directional SMCJ16CA-E3/9AT?
The SMCJ16-E3/9AT is unidirectional with a cathode band marking and conducts only in reverse bias, making it ideal for DC-biased rails referenced to ground. In contrast, the SMCJ16CA-E3/9AT is bi-directional, has no polarity marking, and clamps transients of either polarity - required for AC-coupled or floating lines like RS-485 or CAN. Their VWM, VBR, VC, and PPPM are identical, but the SMCJ16-E3/9AT cannot replace the CA version in symmetric signal paths.
What is the maximum reverse leakage current for the SMCJ16-E3/9AT at its stand-off voltage?
The SMCJ16-E3/9AT exhibits a maximum reverse leakage current (ID) of 1.0 µA at its 16 V stand-off voltage (VWM) and 25 °C ambient temperature. This ultra-low leakage ensures minimal power loss in always-on systems and prevents interference with high-impedance sensor bias networks or precision reference circuits. The SMCJ16-E3/9AT maintains this specification across its full -55 °C to +150 °C operating junction temperature range.
What package type and mounting specifications apply to the SMCJ16-E3/9AT?
The SMCJ16-E3/9AT uses the DO-214AB (SMCJ) surface-mount package with J-bend leads, conforming to JEDEC outline MS-013AA. It requires 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal for rated thermal and surge performance. The device is MSL Level 1 (peak reflow 260 °C), RoHS-compliant, and features matte tin-plated leads qualified to JESD 201 Class 1A for whisker resistance - all documented in the official SMCJ16-E3/9AT datasheet.
SMCJ16-E3/9AT 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
SMCJ16-E3/9AT FAQ
1.How can I place an order for SMCJ16-E3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ16-E3/9AT 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 SMCJ16-E3/9AT reliable?
The price and inventory of SMCJ16-E3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ16-E3/9AT is usually 5 days.
3.What payment methods are accepted for SMCJ16-E3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ16-E3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ16-E3/9AT?
SMCJ16-E3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ16-E3/9AT 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 SMCJ16-E3/9AT?
For technical support, including SMCJ16-E3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ16-E3/9AT requirements.
6.How does Aetrix verify that SMCJ16-E3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCJ16-E3/9AT 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 SMCJ16-E3/9AT meets industry standards.
7.What is the process for return or replacement of SMCJ16-E3/9AT?
All SMCJ16-E3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ16-E3/9AT, 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 SMCJ16-E3/9AT part is unused and in its original packaging.
Return procedure for SMCJ16-E3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ16-E3/9AT Tags
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