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Vishay General Semiconductor - Diodes Division SMCJ16CA-E3/9AT
- Part No.:
- SMCJ16CA-E3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ16CA-E3/9AT.pdf
- Description:
- TVS DIODE 16VWM 26VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,602
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Product details
Overview
SMCJ16CA-E3/9AT from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for clamping voltage transients on signal or power lines. It features 16 V standoff voltage (VWM), 26.0 V maximum clamping voltage at 57.7 A peak pulse current, and 1500 W peak pulse power dissipation with 10/1000 µs waveform - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMCJ16CA-E3/9AT datasheet, SMCJ16CA-E3/9AT pinout, SMCJ16CA-E3/9AT application, or SMCJ16CA-E3/9AT equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification eligibility (via HE3/HM3 variants), low incremental surge resistance, and compatibility with automated SMT assembly on 8.0 mm × 8.0 mm copper pads.
Technical Context
The SMCJ16CA-E3/9AT operates as a silicon avalanche diode with glass-passivated junction, delivering symmetrical clamping in both polarities. Its breakdown voltage range is 17.8 V to 19.7 V at 1.0 mA test current, and it maintains ≤1.0 µA reverse leakage at 16 V standoff - enabling reliable protection of bidirectional data lines without polarity constraints.
Thermally, it exhibits 75 °C/W junction-to-ambient thermal resistance and supports continuous operation from –55 °C to +150 °C. The device meets J-STD-020 MSL Level 1 and passes JESD201 Class 2 whisker testing, confirming suitability for high-reliability reflow processes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - maximum continuous reverse operating voltage before clamping initiates |
| VBR min/max | 17.8 V / 19.7 V at 1.0 mA - ensures predictable avalanche turn-on across production lot |
| VC @ IPPM | 26.0 V at 57.7 A - limits downstream IC voltage stress during 10/1000 µs transient events |
| PPPM | 1500 W - sustains high-energy surges common in automotive load-dump or inductive switching |
| ID @ VWM | ≤1.0 µA - minimizes standby power loss and avoids false triggering in low-current circuits |
| TJ max. | +150 °C - supports under-hood automotive environments and industrial enclosures |
| Package | SMC (DO-214AB) - industry-standard 2-pin surface-mount outline with 7.75 mm × 6.22 mm footprint |
Pinout & Package
SMCJ16CA-E3/9AT uses a 2-terminal SMC (DO-214AB) package with no polarity marking - consistent with bidirectional TVS construction. Terminals are matte tin-plated and solderable per J-STD-002 and JESD22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative half-cycle) | Conducts surge energy during negative voltage excursions; symmetric with cathode |
| Cathode | Transient current entry (positive half-cycle) | Conducts surge energy during positive voltage excursions; symmetric with anode |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns |
| 1500 W peak pulse power | Handles high-energy transients from inductive load switching in 12 V/24 V automotive systems |
| Low clamping ratio (VC/VWM = 1.625) | Minimizes overvoltage exposure to protected ICs compared to higher-ratio suppressors |
| MSL Level 1 rating | Permits unlimited floor life and standard reflow without baking or special handling |
| Glass-passivated junction | Ensures stable breakdown characteristics and long-term reliability under thermal cycling |
Applications
| Automotive Sensor Interface | Industrial PLC Digital Input |
|---|---|
Use Scenario: Protecting CAN FD or LIN bus transceivers from ESD and load-dump transients in engine control modules. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed directly at connector entry point before signal conditioning circuitry. Use Value: Limits transient voltage to ≤26.0 V, preventing latch-up or gate oxide damage in 3.3 V/5 V transceivers while maintaining signal integrity. |
Use Scenario: Safeguarding 24 V DC digital input channels against field-wiring induced surges in factory automation controllers. IC Role / Device Role / Timing Role: Primary overvoltage suppression stage upstream of optocoupler or Schmitt-trigger input buffer. Use Value: Absorbs up to 1500 W surge energy without degradation, eliminating need for secondary clamping or series impedance. |
| Consumer Power Adapter Output | Telecom Line Card Protection |
Use Scenario: Secondary-side transient suppression on 12 V/19 V DC output rails of laptop adapters exposed to user-handling ESD. IC Role / Device Role / Timing Role: Fast-response shunt protector parallel to output capacitor, triggered within <1 ps of overvoltage onset. Use Value: Clamps 8 kV contact ESD events to safe levels (<26 V), preserving downstream USB-PD controller and battery management ICs. |
Use Scenario: Protecting Ethernet PHY interface pins from lightning-induced surges on outdoor telecom line cards. IC Role / Device Role / Timing Role: First-line defense on differential pairs, coordinated with gas discharge tube (GDT) front-end for multi-stage protection. Use Value: Provides low-clamp, fast-response layer that handles fast-rising edges (<1 ns) before GDT fires, reducing let-through voltage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC16CA | Same VWM (16 V) and VC (26 V), but lower PPPM (600 W); smaller SMA package | Limited to lower-energy transients; unsuitable for automotive load-dump per ISO 7637-2 | Select when board space is constrained and surge energy does not exceed 600 W |
| SMCJ16CA-M3/9AT | Identical electrical specs; halogen-free, RoHS-compliant variant with same SMC package | No functional difference; required only where halogen-free compliance is mandated | Choose for green manufacturing programs without altering circuit design or layout |
Compared with SAC16CA and SMCJ16CA-M3/9AT, the SMCJ16CA-E3/9AT offers full 1500 W surge capacity in commercial-grade RoHS-compliant form, making it optimal for cost-sensitive automotive and industrial designs where halogen content is unrestricted and high-energy robustness is mandatory.
Availability
SMCJ16CA-E3/9AT is available at Aetrix Electronics and suitable for automotive sensor protection, industrial PLC input conditioning, and consumer power adapter output clamping requiring stable component supply and full traceability.
Supply support for SMCJ16CA-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 and application-specific performance.
The SMCJ series targets high-power transient suppression in harsh environments - engineered for automotive, industrial, and telecom applications demanding AEC-Q101 readiness, high surge tolerance, and stable clamping behavior over temperature.
FAQ
What is the clamping voltage of SMCJ16CA-E3/9AT at its rated peak pulse current?
The SMCJ16CA-E3/9AT has a maximum clamping voltage (VC) of 26.0 V at 57.7 A peak pulse current (IPPM), measured using the standard 10/1000 µs double-exponential waveform. This value is guaranteed across the full operating temperature range and defines the upper voltage limit imposed on protected circuitry during surge events. The SMCJ16CA-E3/9AT achieves this with a clamping ratio of 1.625 relative to its 16 V standoff voltage.
Is SMCJ16CA-E3/9AT suitable for automotive applications requiring AEC-Q101 qualification?
The SMCJ16CA-E3/9AT itself is commercial-grade and not AEC-Q101 qualified; however, Vishay offers functionally identical variants - SMCJ16CAHE3_X and SMCJ16CAHM3_X - which carry full AEC-Q101 qualification. These use the same die and SMC package but differ in material compliance and marking. For automotive designs, specify the HE3 or HM3 suffix to ensure qualification; the SMCJ16CA-E3/9AT remains appropriate for non-automotive industrial or consumer use.
How does the bidirectional configuration of SMCJ16CA-E3/9AT affect its PCB layout versus unidirectional TVS diodes?
The SMCJ16CA-E3/9AT has no polarity marking and requires no orientation during placement - unlike unidirectional versions (e.g., SMCJ16A) that feature a cathode band. This simplifies automated assembly and eliminates risk of reverse installation. Layout follows standard SMC pad dimensions (0.305" × 0.220"), and thermal relief must maintain ≥8.0 mm × 8.0 mm copper area per terminal to sustain 1500 W surge capability. The SMCJ16CA-E3/9AT's symmetry also enables direct replacement in AC-coupled paths without signal inversion concerns.
What is the maximum reverse leakage current of SMCJ16CA-E3/9AT at its standoff voltage?
The SMCJ16CA-E3/9AT exhibits a maximum reverse leakage current (ID) of 1.0 µA at its 16 V standoff voltage (VWM), tested at 25 °C. This ultra-low leakage ensures minimal power drain in always-on systems such as automotive body controllers or IoT sensor nodes. Leakage remains below 5.0 µA up to +125 °C, supporting stable operation in thermally demanding environments without compromising battery life or signal reference integrity. The SMCJ16CA-E3/9AT achieves this via tightly controlled avalanche junction processing.
Can SMCJ16CA-E3/9AT be used in parallel to increase surge current handling?
No - SMCJ16CA-E3/9AT is not recommended for parallel connection due to parameter variation between units, which causes uneven current sharing and potential thermal runaway. Vishay specifies single-device operation only; for higher surge ratings, select a higher-power part (e.g., SMCJ22CA) or implement staged protection with upstream GDTs. Derating curves in the datasheet assume individual device operation, and parallel use voids performance guarantees. The SMCJ16CA-E3/9AT's 1500 W rating is validated only in standalone configuration with proper PCB copper thermal mass.
SMCJ16CA-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:
- -
- Bidirectional Channels:
- 1
- 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)
SMCJ16CA-E3/9AT FAQ
1.How can I place an order for SMCJ16CA-E3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ16CA-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 SMCJ16CA-E3/9AT reliable?
The price and inventory of SMCJ16CA-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 SMCJ16CA-E3/9AT is usually 5 days.
3.What payment methods are accepted for SMCJ16CA-E3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ16CA-E3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ16CA-E3/9AT?
SMCJ16CA-E3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ16CA-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 SMCJ16CA-E3/9AT?
For technical support, including SMCJ16CA-E3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ16CA-E3/9AT requirements.
6.How does Aetrix verify that SMCJ16CA-E3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCJ16CA-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 SMCJ16CA-E3/9AT meets industry standards.
7.What is the process for return or replacement of SMCJ16CA-E3/9AT?
All SMCJ16CA-E3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ16CA-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 SMCJ16CA-E3/9AT part is unused and in its original packaging.
Return procedure for SMCJ16CA-E3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ16CA-E3/9AT Tags
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