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Vishay General Semiconductor - Diodes Division SMCJ16A-E3/9AT
- Part No.:
- SMCJ16A-E3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ16A-E3/9AT.pdf
- Description:
- TVS DIODE 16VWM 26VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,490
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Product details
Overview
SMCJ16A-E3/9AT from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMC (DO-214AB) 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 (IPPM), and 1500 W peak pulse power (10/1000 µs waveform), commonly deployed in automotive power supply inputs and industrial sensor interfaces.
For engineers reviewing the SMCJ16A-E3/9AT datasheet, SMCJ16A-E3/9AT pinout, SMCJ16A-E3/9AT application, or SMCJ16A-E3/9AT equivalent, key selection criteria include its 17.8–19.7 V breakdown voltage range (VBR), 1.0 µA max reverse leakage at VWM, -55 °C to +150 °C operating junction temperature, and AEC-Q101 qualification eligibility via HE3 suffix variants.
Technical Context
This TVS diode operates as a clamping-type surge protector, leveraging an avalanche breakdown mechanism to limit transient voltages across protected circuits. Its glass-passivated junction ensures stable electrical characteristics and low incremental surge resistance, enabling fast response (<1 ns) to ESD and lightning-induced transients.
The device is rated for 1500 W peak pulse power under standardized 10/1000 µs waveform conditions and exhibits a temperature coefficient of VBR of +0.089 %/°C - critical for thermal stability in high-temperature automotive environments where junction temperatures may reach 150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 17.8 V / 19.7 V - breakdown voltage range at 1.0 mA test current; defines turn-on threshold consistency |
| VC @ IPPM | 26.0 V - clamped voltage during 57.7 A 10/1000 µs surge; determines maximum stress on downstream ICs |
| IPPM | 57.7 A - peak surge current capability under standard waveform; validates protection level against ISO 7637-2 Pulse 5a |
| PPPM | 1500 W - peak pulse power rating; enables single-device protection for 12 V automotive systems with high-energy transients |
| TJ max | +150 °C - maximum junction temperature; supports under-hood deployment without derating in most PCB layouts |
| Package | SMC (DO-214AB) - industry-standard surface-mount outline with 8.0 mm × 8.0 mm copper pad thermal requirement |
Pinout & Package
SMCJ16A-E3/9AT uses the SMC (DO-214AB) package: a rectangular surface-mount case with two leads, cathode marked by a band. Thermal performance requires 0.31″ × 0.31″ (8.0 mm × 8.0 mm) copper pads per terminal per Vishay's layout recommendation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection in unidirectional configuration | Connected to circuit ground or return path; carries full surge current during clamping |
| Cathode | High-side connection; marked with band | Connected to protected line (e.g., 12 V rail); defines polarity-sensitive placement on PCB |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification path | Available via HE3/HM3 suffix variants - enables direct use in automotive ECUs without additional qualification effort |
| MSL Level 1 moisture sensitivity | Compatible with standard SMT reflow profiles up to 260 °C peak - eliminates baking requirements pre-assembly |
| Glass-passivated junction | Ensures long-term parameter stability and low leakage drift over temperature and lifetime |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients - improves protection margin for 3.3 V/5 V logic interfaces |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed microcontroller power rails from load dump and alternator transients per ISO 7637-2. IC Role / Device Role / Timing Role: Clamping TVS placed between VIN and GND, absorbing energy before it reaches LDO or MCU input pins. Use Value: Withstands 1500 W surges and clamps to 26.0 V, ensuring downstream 36 V-rated regulators remain within safe operating area. | Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loop) from ESD events in factory automation sensors. IC Role / Device Role / Timing Role: Unidirectional TVS connected in series with signal path or shunted to ground, suppressing ±8 kV contact ESD per IEC 61000-4-2. Use Value: 1.0 µA max leakage at 16 V ensures minimal impact on precision current-loop accuracy and offset error. |
| Consumer USB Power Port Protection | Telecom DC Feeder Protection |
Use Scenario: Shielding USB-C VBUS lines in portable docking stations from hot-plug induced voltage spikes and cable discharge events. IC Role / Device Role / Timing Role: Primary clamping device placed upstream of USB PD controller and port protection ICs. Use Value: Fast <1 ns response and 26.0 V clamping prevent latch-up or gate oxide damage in 20 V tolerant USB PD controllers. | Use Scenario: Protecting -48 V telecom DC feeder lines from lightning-induced surges entering central office equipment. IC Role / Device Role / Timing Role: High-power unidirectional TVS installed at equipment entry point, coordinated with gas discharge tubes (GDTs). Use Value: 1500 W rating and 57.7 A IPPM provide first-stage energy diversion before secondary protection triggers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC16 | Lower PPPM (600 W), smaller SOD-123FL package, higher VC (27.5 V) | Targeted at space-constrained consumer electronics, not automotive-grade | Select when board area is critical and surge energy is ≤600 W |
| 1.5SMC16A | Same PPPM (1500 W), identical VWM/VC, but legacy SMC package with different MSL rating (Level 2) | Legacy design reuse; lacks AEC-Q101 path and updated RoHS compliance | Select only for backward-compatible replacements where HE3/M3 suffixes are not required |
Compared with SAC16 and 1.5SMC16A, SMCJ16A-E3/9AT delivers superior thermal robustness (RθJA = 75 °C/W), guaranteed MSL Level 1 handling, and direct AEC-Q101 qualification pathway - making it the preferred choice for new automotive and industrial designs requiring long-term reliability and supply continuity.
Availability
SMCJ16A-E3/9AT is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interface protection, and telecom DC feeder applications requiring stable component supply, consistent parametric performance, and long-lifecycle availability.
Supply support for SMCJ16A-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 automotive-grade qualification.
The SMCJ series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in harsh environments including automotive, industrial, and telecom infrastructure.
FAQ
What is the clamping voltage of SMCJ16A-E3/9AT at its rated peak pulse current?
The SMCJ16A-E3/9AT has a maximum clamping voltage (VC) of 26.0 V when subjected to its rated 57.7 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured per JEDEC test conditions and defines the upper voltage limit imposed on protected circuitry during surge events. The SMCJ16A-E3/9AT maintains this clamping performance across its full operating temperature range.
Is SMCJ16A-E3/9AT suitable for automotive applications?
Yes, the SMCJ16A-E3/9AT is suitable for automotive applications when specified with the HE3 or HM3 suffix (e.g., SMCJ16AHE3_A/I), which denotes AEC-Q101 qualification. While the base SMCJ16A-E3/9AT is RoHS-compliant and commercial-grade, its underlying design - including glass-passivated junction, MSL Level 1 rating, and -55 °C to +150 °C operation - meets foundational automotive reliability requirements. The SMCJ16A-E3/9AT itself serves as the foundation for qualified variants.
What does the "E3/9AT" suffix indicate in SMCJ16A-E3/9AT?
The "E3" suffix indicates RoHS-compliant, commercial-grade construction with matte tin-plated leads, while "9AT" specifies packaging in a 13-inch diameter plastic tape-and-reel format containing 3500 units. This ordering code aligns with Vishay's standardized nomenclature for SMCJ series devices and ensures compatibility with automated SMT assembly systems. The SMCJ16A-E3/9AT is fully traceable and conforms to J-STD-002 solderability standards.
How does SMCJ16A-E3/9AT differ from bidirectional SMCJ16CA variants?
The SMCJ16A-E3/9AT is unidirectional, featuring a cathode band and conducting only in reverse bias above VBR; it blocks forward current like a standard diode. In contrast, SMCJ16CA is bidirectional, symmetrical in both directions, with no polarity marking and identical VBR and VC in positive and negative quadrants. The SMCJ16A-E3/9AT is selected for DC rail protection where polarity is fixed, whereas SMCJ16CA suits AC-coupled or floating signal lines.
What thermal pad layout is required for optimal performance of SMCJ16A-E3/9AT?
Vishay specifies a minimum 0.31″ × 0.31″ (8.0 mm × 8.0 mm) copper pad area for each terminal of the SMCJ16A-E3/9AT to achieve rated 1500 W pulse power and maintain junction temperature within limits. This layout reduces thermal resistance and prevents premature failure during repetitive surge events. Deviation from this pad size requires derating per Figure 2 in the datasheet. The SMCJ16A-E3/9AT thermal performance is validated using this exact footprint.
SMCJ16A-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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 16V
- Voltage - Breakdown (Min):
- 17.8V
- Voltage - Clamping (Max) @ Ipp:
- 26V
- Current - Peak Pulse (10/1000µs):
- 57.7A
- 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)
SMCJ16A-E3/9AT FAQ
1.How can I place an order for SMCJ16A-E3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ16A-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 SMCJ16A-E3/9AT reliable?
The price and inventory of SMCJ16A-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 SMCJ16A-E3/9AT is usually 5 days.
3.What payment methods are accepted for SMCJ16A-E3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ16A-E3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ16A-E3/9AT?
SMCJ16A-E3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ16A-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 SMCJ16A-E3/9AT?
For technical support, including SMCJ16A-E3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ16A-E3/9AT requirements.
6.How does Aetrix verify that SMCJ16A-E3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCJ16A-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 SMCJ16A-E3/9AT meets industry standards.
7.What is the process for return or replacement of SMCJ16A-E3/9AT?
All SMCJ16A-E3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ16A-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 SMCJ16A-E3/9AT part is unused and in its original packaging.
Return procedure for SMCJ16A-E3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ16A-E3/9AT Tags
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