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Vishay General Semiconductor - Diodes Division SMCJ16C-E3/9AT
- Part No.:
- SMCJ16C-E3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ16C-E3/9AT.pdf
- Description:
- TVS DIODE 16VWM 28.8VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,844
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Product details
Overview
SMCJ16C-E3/9AT from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-214AB (SMCJ) package, designed for clamping voltage transients on signal or power lines. It features 16 V stand-off voltage (VWM), 26.0 V maximum clamping voltage at 57.7 A peak pulse current, 1500 W peak pulse power rating, and AEC-Q101 qualification for automotive reliability.
For engineers reviewing the SMCJ16C-E3/9AT datasheet, SMCJ16C-E3/9AT pinout, SMCJ16C-E3/9AT application, or SMCJ16C-E3/9AT equivalent, this device is selected for robust ESD and surge protection in automotive sensor interfaces, industrial I/O ports, and DC power rail conditioning where bidirectional clamping and low leakage (<1.0 µA at VWM) are required.
Technical Context
The SMCJ16C-E3/9AT operates as a bi-directional avalanche diode with symmetrical breakdown characteristics-minimum breakdown voltage 17.8 V and maximum 19.7 V at 1.0 mA test current. Its clamping action begins at VWM = 16 V and limits transient energy to ≤26.0 V under 10/1000 µs waveform stress up to 1500 W.
Thermally, it sustains junction temperatures from –55 °C to +150 °C, with RθJA = 75 °C/W (typ.) and RθJL = 15 °C/W (typ.), enabling reliable operation on standard PCB copper pads (8.0 mm × 8.0 mm per terminal) without heatsinking for short-duration surges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 16 V - Maximum continuous reverse operating voltage before clamping initiates; defines safe operating margin below breakdown. |
| VBR (Breakdown Voltage) | 17.8–19.7 V at 1.0 mA - Confirmed symmetrical avalanche threshold in both directions; ensures predictable turn-on during transients. |
| VC (Clamping Voltage) | 26.0 V at IPPM = 57.7 A (10/1000 µs) - Peak voltage seen by protected circuit during worst-case surge; determines downstream component stress. |
| PPPM (Peak Pulse Power) | 1500 W - Energy-handling capacity for standardized 10/1000 µs surge; supports IEC 61000-4-5 Level 4 compliance when properly laid out. |
| ID (Reverse Leakage) | ≤1.0 µA at VWM - Ultra-low leakage preserves signal integrity and battery life in always-on sensor or interface circuits. |
| TJ Range | –55 °C to +150 °C - Full automotive-grade temperature coverage; validated per AEC-Q101 for under-hood and chassis applications. |
| Package | DO-214AB (SMCJ) - Surface-mount, low-profile outline with matte tin-plated leads; compatible with J-STD-002 solderability and JESD201 Class 1A whisker resistance. |
Pinout & Package
SMCJ16C-E3/9AT uses the DO-214AB (SMCJ) surface-mount package: molded plastic body with two coplanar J-bend terminals, no polarity marking (bi-directional), and UL 94 V-0 rated compound. Dimensions: 7.75 mm × 6.22 mm × 2.62 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional avalanche junction | No functional polarity-either terminal serves as anode or cathode depending on transient polarity; enables single-device protection of AC or floating lines. |
| Terminal 1 / Terminal 2 | Surge current path | Both terminals conduct equally during positive or negative transients; requires symmetric PCB trace routing and equal copper pad area (8.0 mm × 8.0 mm) for thermal balance and rated PPPM performance. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, humidity bias, and mechanical shock-enables drop-in deployment in ADAS camera modules and engine control sensors. |
| 1500 W peak pulse power | Withstands IEC 61000-4-5 combination wave surges (e.g., 4 kV line-to-earth) without degradation when mounted per recommended pad layout. |
| Low clamping ratio (VC/VWM = 1.625) | Minimizes overvoltage exposure to downstream ICs-critical for protecting 3.3 V or 5 V logic inputs in CAN/LIN transceivers or microcontroller GPIOs. |
| MSL Level 1 (260 °C peak reflow) | Compatible with standard lead-free SMT assembly processes without pre-baking; reduces manufacturing complexity and cost. |
| Glass-passivated junction | Ensures stable VBR over lifetime and immunity to moisture-induced parameter drift-key for long-term reliability in industrial fieldbus nodes. |
Applications
| Automotive Sensor Protection | Industrial I/O Port Protection |
|---|---|
Use Scenario: Protecting analog output lines of pressure or temperature sensors in engine control units exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bi-directional clamping element placed directly at connector entry point to shunt transients before reaching signal conditioning amplifier or ADC input. Use Value: Maintains signal fidelity under 100 V/100 ms load dump events while adding <1 pF parasitic capacitance-no impact on 10 kHz sensor bandwidth. |
Use Scenario: Safeguarding RS-485 transceiver data lines in factory automation PLCs subjected to lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Primary TVS on differential bus lines (A/B), coordinated with common-mode chokes to meet IEC 61000-4-4 EFT and IEC 61000-4-5 surge immunity requirements. Use Value: Clamps 4 kV surge to <26 V within nanoseconds, preventing latch-up or permanent damage to MAX1487 or SN65HVD72 transceivers. |
| DC Power Rail Conditioning | Consumer USB Port ESD Protection |
Use Scenario: Secondary overvoltage protection on 12 V or 24 V DC input rails feeding infotainment head units or telematics gateways. IC Role / Device Role / Timing Role: Downstream clamping device after primary fuse and upstream MOV, absorbing residual energy missed by bulk suppressors. Use Value: Limits rail overshoot to ≤26 V during ISO 16750-2 pulse 5a (alternator load dump), protecting switching regulators and PMICs rated for 30 V max input. |
Use Scenario: Board-level ESD safeguard for USB 2.0 D+/D− lines in portable medical monitors or smart home hubs handling frequent human contact. IC Role / Device Role / Timing Role: Fast-response bi-directional TVS placed adjacent to USB connector to divert ±15 kV HBM ESD strikes per IEC 61000-4-2. Use Value: Sub-1 ns response time and <1.0 µA leakage preserve signal integrity at 480 Mbps while meeting Class 4 system-level ESD immunity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ16CA-E3/61T | Lower PPPM (400 W), smaller SMA package (DO-214AC), higher VC (25.0 V at 24.7 A), same VWM and AEC-Q101 grade. | Better suited for space-constrained consumer PCBs with lower surge threat levels (IEC 61000-4-2 only); not rated for IEC 61000-4-5 Level 4. | Select when board area is critical and peak surge energy is ≤400 W-verify clamping margin against protected IC's absolute maximum ratings. |
| 1.5KE16CA | Through-hole TO-218 package, same VWM/VC/PPPM specs, but no AEC-Q101 qualification and higher RθJA (35 °C/W). | Used in legacy industrial power supplies where manual assembly or high-reliability through-hole mounting is preferred over SMT. | Choose only for non-automotive, non-automated production environments where thermal mass and serviceability outweigh SMT efficiency. |
Compared with SMAJ16CA-E3/61T and 1.5KE16CA, the SMCJ16C-E3/9AT delivers superior surge robustness (1500 W vs. 400 W or 1500 W with inferior thermal performance), AEC-Q101 validation for automotive deployment, and optimized SMT manufacturability-making it the preferred choice for new designs requiring high-energy transient immunity in compact, automated assemblies.
Availability
SMCJ16C-E3/9AT is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial RS-485 networks, and DC power rail conditioning requiring stable component supply, full AEC-Q101 traceability, and RoHS-compliant packaging.
Supply support for SMCJ16C-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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, precision, and application-specific optimization.
The SMCJ series was engineered for high-energy transient suppression in harsh environments-targeting automotive, industrial, and telecom systems where failure due to ESD or surge must be eliminated across temperature, vibration, and lifetime requirements.
FAQ
What is the breakdown voltage range of the SMCJ16C-E3/9AT?
The SMCJ16C-E3/9AT has a guaranteed breakdown voltage (VBR) range of 17.8 V to 19.7 V at 1.0 mA test current, measured in both directions due to its bi-directional construction. This specification is confirmed in the Vishay datasheet Document Number 88394, Table on page 2, ensuring predictable clamping onset for design margining. The SMCJ16C-E3/9AT maintains this symmetry across its full operating temperature range.
Is the SMCJ16C-E3/9AT suitable for automotive applications?
Yes, the SMCJ16C-E3/9AT is AEC-Q101 qualified, explicitly stated in the Vishay datasheet revision 11-Dec-12 (Document Number 88394, page 1). It meets automotive reliability requirements including temperature cycling, mechanical shock, and humidity testing. The SMCJ16C-E3/9AT is routinely deployed in engine control modules, ADAS camera interfaces, and body electronics where sustained operation from –40 °C to +125 °C ambient is required.
What is the maximum clamping voltage of the SMCJ16C-E3/9AT under surge conditions?
The SMCJ16C-E3/9AT clamps to a maximum of 26.0 V when subjected to its rated peak pulse current of 57.7 A under the standard 10/1000 µs waveform. This value is specified in the "ELECTRICAL CHARACTERISTICS" table on page 2 of the Vishay datasheet. The SMCJ16C-E3/9AT achieves this low clamping ratio (VC/VWM ≈ 1.625), which is critical for protecting 3.3 V or 5 V logic devices downstream.
Does the SMCJ16C-E3/9AT have polarity markings?
No, the SMCJ16C-E3/9AT does not have polarity markings because it is a bi-directional TVS diode-the device functions identically regardless of voltage polarity applied across its terminals. As noted in the "MECHANICAL DATA" section of the Vishay datasheet (page 1), "no marking on bi-directional types." This symmetry simplifies PCB layout and eliminates orientation errors during automated placement of the SMCJ16C-E3/9AT.
What is the thermal resistance of the SMCJ16C-E3/9AT?
The SMCJ16C-E3/9AT has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W and a typical junction-to-lead resistance (RθJL) of 15 °C/W, per the "THERMAL CHARACTERISTICS" table on page 3 of the Vishay datasheet. These values assume mounting on 8.0 mm × 8.0 mm copper pads per terminal. Proper thermal layout is essential to sustain the SMCJ16C-E3/9AT's 1500 W peak pulse rating without junction overheating.
SMCJ16C-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:
- -
- Bidirectional Channels:
- 1
- 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)
SMCJ16C-E3/9AT FAQ
1.How can I place an order for SMCJ16C-E3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ16C-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 SMCJ16C-E3/9AT reliable?
The price and inventory of SMCJ16C-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 SMCJ16C-E3/9AT is usually 5 days.
3.What payment methods are accepted for SMCJ16C-E3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ16C-E3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ16C-E3/9AT?
SMCJ16C-E3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ16C-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 SMCJ16C-E3/9AT?
For technical support, including SMCJ16C-E3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ16C-E3/9AT requirements.
6.How does Aetrix verify that SMCJ16C-E3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCJ16C-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 SMCJ16C-E3/9AT meets industry standards.
7.What is the process for return or replacement of SMCJ16C-E3/9AT?
All SMCJ16C-E3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ16C-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 SMCJ16C-E3/9AT part is unused and in its original packaging.
Return procedure for SMCJ16C-E3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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