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Vishay General Semiconductor - Diodes Division SMCJ16CA/57T
- Part No.:
- SMCJ16CA/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ16CA/57T.pdf
- Description:
- TVS DIODE 16VWM 26VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,822
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Product details
Overview
SMCJ16CA/57T from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-214AB (SMCJ) package, designed for clamping voltage transients on power and signal lines. It features a 16 V stand-off voltage (VWM), 26.0 V maximum clamping voltage (VC) at 57.7 A peak pulse current (IPPM), and 1500 W peak pulse power dissipation (PPPM) with 10/1000 µs waveform. It is AEC-Q101 qualified and used for automotive sensor line protection.
For engineers reviewing the SMCJ16CA/57T datasheet, SMCJ16CA/57T pinout, SMCJ16CA/57T application, or SMCJ16CA/57T equivalent, key selection criteria include bi-directional clamping capability, 1500 W surge rating, DO-214AB thermal performance, RoHS-compliant matte tin terminals, and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
The SMCJ16CA/57T operates as a bi-directional avalanche diode, symmetrically clamping voltage surges in both polarities without polarity marking. Its glass-passivated junction enables fast response time (<1 ns) and low incremental surge resistance, critical for protecting downstream ICs from ESD and inductive switching transients.
Thermal design relies on its RθJA of 75 °C/W and RθJL of 15 °C/W, with derating applied above 25 °C ambient per Figure 2. It meets MSL Level 1 per J-STD-020 and supports lead-free reflow up to 260 °C peak temperature.
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 mA test current; defines clamping onset threshold |
| VC @ IPPM | 26.0 V - Clamped voltage at 57.7 A peak pulse current; determines protected circuit's max stress level |
| PPPM | 1500 W - Peak surge power handling with 10/1000 µs waveform; defines transient energy absorption capacity |
| ID @ VWM | 1.0 µA - Reverse leakage at stand-off voltage; ensures minimal quiescent power loss in normal operation |
| TJ max | +150 °C - Maximum junction temperature; sets upper limit for thermal design margin in high-ambient environments |
| Package | DO-214AB (SMCJ) - Surface-mount package with 8.0 mm × 8.0 mm copper pad requirement for rated PPPM |
Pinout & Package
SMCJ16CA/57T is a two-terminal bi-directional TVS diode in DO-214AB (SMCJ) package. No polarity marking is present on the case, confirming symmetrical bidirectional conduction. Terminals are matte tin-plated leads, solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient current path | Either terminal serves as anode or cathode depending on surge polarity; no fixed polarity required in layout |
| Case (cathode band absent) | Non-functional mechanical reference | No electrical connection; absence of band confirms bi-directional configuration per Vishay marking convention |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control, ADAS sensors, and infotainment power rails |
| 1500 W peak pulse power | Withstands ISO 7637-2 Pulse 1, 2a, 3a/b and IEC 61000-4-5 surge events without degradation |
| Low clamping ratio (VC/VBR ≈ 1.46) | Minimizes overvoltage stress on protected MOSFETs or CAN transceivers during surge events |
| MSL Level 1 moisture sensitivity | Enables standard SMT assembly without baking; compatible with 260 °C lead-free reflow profiles |
| Glass passivated junction | Ensures stable breakdown characteristics and long-term reliability under repeated surge stress |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting analog sensor outputs (e.g., pressure, temperature) in engine bay modules exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed across sensor supply and ground pins to shunt transients before they reach ADC input stages. Use Value: Limits voltage excursion to ≤26.0 V during 1500 W surges, preserving 12-bit ADC accuracy and preventing latch-up in microcontroller analog front-end. |
Use Scenario: Safeguarding 24 V digital input channels in programmable logic controllers against field-wiring induced transients. IC Role / Device Role / Timing Role: Parallel-connected TVS on each opto-isolator input line to absorb inductive kickback from solenoid/relay coils. Use Value: Clamps 10/1000 µs surges to 26.0 V within <1 ns, ensuring optocoupler CTR stability and eliminating false triggering in safety-critical control loops. |
| Telecom Line Interface | Consumer Power Adapter Input |
Use Scenario: Transient suppression on RS-485 bus lines in base station remote radio units subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Bidirectional TVS placed differential-mode between A/B lines and common-mode to ground to meet IEC 61000-4-5 Level 4. Use Value: Absorbs 4 kV common-mode surges while maintaining signal integrity below 26.0 V clamping, preserving data rates up to 10 Mbps. |
Use Scenario: Secondary-side overvoltage protection in AC/DC adapters for smart home devices, guarding against capacitor failure or regulator fault. IC Role / Device Role / Timing Role: Clamp across DC output rails to prevent >26.0 V from reaching USB-PD or battery management ICs during fault conditions. Use Value: Limits fault voltage to safe levels for 5 V/12 V logic interfaces, enabling compliance with UL 62368-1 abnormal operation requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ16CA | Same DO-214AC (SMA) package; lower PPPM (400 W); higher VC (29.2 V at 32.4 A) | Not suitable for 1500 W surge requirements; limited to lower-energy transients | Select only when space-constrained layouts require smaller SMA footprint and surge energy is ≤400 W |
| ON Semiconductor SMCJ16CA | Identical electrical specs and DO-214AB package; same AEC-Q101 qualification; different branding and traceability | Drop-in functional replacement with identical thermal and clamping behavior | Preferred for dual-sourcing where Vishay and ON Semi supply chain diversification is required |
Compared with SMCJ16CA/57T, SMAJ16CA offers reduced surge capacity and higher clamping voltage, limiting use to lighter-duty applications; SMCJ16CA provides identical performance with alternate logistics traceability, enabling robust BOM continuity without design change.
Availability
SMCJ16CA/57T is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, and telecom line interface designs requiring stable component supply, AEC-Q101 compliance, and 1500 W transient immunity.
Supply support for SMCJ16CA/57T 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, automotive qualification, and high-power surge handling.
The SMCJ series was developed specifically for high-energy transient suppression in harsh environments-targeting automotive powertrain, industrial automation, and infrastructure equipment where 1500 W surge immunity and AEC-Q101 validation are mandatory.
FAQ
What is the clamping voltage of SMCJ16CA/57T and how is it measured?
The SMCJ16CA/57T has a maximum clamping voltage (VC) of 26.0 V, measured at its rated peak pulse current (IPPM) of 57.7 A using a standardized 10/1000 µs double-exponential surge waveform. This value is guaranteed per Vishay Document Number 88394 and reflects worst-case voltage seen by protected circuitry during full-rated transient events.
Is SMCJ16CA/57T suitable for automotive applications?
Yes, SMCJ16CA/57T is AEC-Q101 qualified and explicitly rated for automotive use. Its construction-including glass-passivated junction, MSL Level 1 packaging, and 150 °C maximum junction temperature-meets requirements for engine control units, body electronics, and ADAS sensor interfaces per Vishay's qualification report referenced in Document 88394.
Does SMCJ16CA/57T have polarity markings?
No, SMCJ16CA/57T is a bi-directional TVS diode and carries no cathode band or polarity marking. Its DO-214AB package is unmarked per Vishay specification, confirming symmetrical clamping behavior in both directions-essential for protecting AC-coupled or floating signal lines.
What is the thermal resistance of SMCJ16CA/57T and how does it affect PCB layout?
The SMCJ16CA/57T has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 8.0 mm × 8.0 mm copper pads per terminal. To achieve rated 1500 W PPPM, PCB layout must replicate this pad area; reducing pad size increases thermal impedance and requires derating per Figure 2 in Document 88394.
How does SMCJ16CA/57T differ from uni-directional SMCJ16A?
SMCJ16CA/57T is bi-directional with symmetric breakdown (VBR 17.8–19.7 V in both directions) and no polarity marking, while SMCJ16A is uni-directional with cathode band and forward voltage drop (~3.5 V at 100 A). The CA version protects AC or bidirectional signals; the A version suits DC rails where polarity is fixed and forward conduction may occur.
SMCJ16CA/57T 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:
- 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/57T FAQ
1.How can I place an order for SMCJ16CA/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ16CA/57T 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/57T reliable?
The price and inventory of SMCJ16CA/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ16CA/57T is usually 5 days.
3.What payment methods are accepted for SMCJ16CA/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ16CA/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ16CA/57T?
SMCJ16CA/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ16CA/57T 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/57T?
For technical support, including SMCJ16CA/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ16CA/57T requirements.
6.How does Aetrix verify that SMCJ16CA/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ16CA/57T 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/57T meets industry standards.
7.What is the process for return or replacement of SMCJ16CA/57T?
All SMCJ16CA/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ16CA/57T, 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/57T part is unused and in its original packaging.
Return procedure for SMCJ16CA/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ16CA/57T Tags
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