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Vishay General Semiconductor - Diodes Division SMCJ16CA-M3/57T
- Part No.:
- SMCJ16CA-M3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ16CA-M3/57T.pdf
- Description:
- TVS DIODE 16VWM 26VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,344
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Product details
Overview
SMCJ16CA-M3/57T from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for robust overvoltage protection of sensitive electronics. It features a 16 V standoff voltage (VWM), 26.0 V maximum clamping voltage (VC) at 57.7 A peak pulse current (IPPM), and 1500 W peak pulse power (10/1000 µs waveform), commonly deployed on power rails and signal lines in automotive and industrial control modules.
For engineers reviewing the SMCJ16CA-M3/57T datasheet, SMCJ16CA-M3/57T pinout, SMCJ16CA-M3/57T application, or SMCJ16CA-M3/57T equivalent, key selection criteria include bidirectional clamping symmetry, low incremental surge resistance, AEC-Q101 qualification eligibility (via HM3 suffix), and compatibility with automated SMT assembly on 8.0 mm × 8.0 mm copper pads.
Technical Context
This device operates as a voltage-clamped crowbar during transients, leveraging an avalanche breakdown mechanism to divert surge energy away from downstream circuitry. Its bidirectional structure ensures symmetrical clamping in both polarities, eliminating polarity sensitivity in AC-coupled or floating signal paths.
It exhibits a typical junction-to-lead thermal resistance of 15 °C/W and a junction-to-ambient thermal resistance of 75 °C/W, enabling reliable operation up to 150 °C junction temperature under defined PCB pad conditions. The glass-passivated junction ensures stable breakdown characteristics and long-term reliability under repetitive surge stress.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - Maximum continuous reverse operating voltage before clamping begins; defines safe operating margin below system rail voltage. |
| VBR min/max | 17.8 V / 19.7 V - Breakdown voltage range at 1.0 mA test current; guarantees consistent turn-on threshold across production lots. |
| VC @ IPPM | 26.0 V - Clamped voltage at 57.7 A peak pulse current; determines maximum voltage seen by protected IC during worst-case surge. |
| PPPM | 1500 W - Peak pulse power handling (10/1000 µs waveform); quantifies surge energy absorption capability without failure. |
| IPPM | 57.7 A - Corresponding peak pulse current at VC; used to size PCB trace width and verify layout survivability. |
| TJ max | +150 °C - Maximum junction temperature; sets thermal derating limits for sustained power dissipation and high-temperature environments. |
| Package | SMC (DO-214AB) - Surface-mount package with 8.0 mm × 8.0 mm thermal pad footprint; supports automated placement and meets UL 94 V-0 flammability. |
Pinout & Package
SMCJ16CA-M3/57T uses the SMC (DO-214AB) package: a two-terminal surface-mount device with no polarity marking for bidirectional operation. Terminals are matte tin-plated and solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative half-cycle) | Accepts surge current during negative polarity transients; forms one side of symmetrical avalanche path. |
| Cathode | Transient current entry (positive half-cycle) | Accepts surge current during positive polarity transients; completes bidirectional clamping loop with Anode. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals, differential buses, or ungrounded circuits without polarity concerns. |
| 1500 W peak pulse power | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-earth, 2 kV line-line) when properly mounted on 8 mm × 8 mm copper pads. |
| Low clamping ratio (VC/VBR ≈ 1.46) | Minimizes voltage overshoot during clamping-critical for protecting 16–24 V logic interfaces and microcontroller I/O pins. |
| Halogen-free, RoHS-compliant (M3 suffix) | Meets environmental compliance requirements for automotive and industrial end equipment without compromising surge performance. |
| AEC-Q101 qualification path | HM3 variant available; enables use in automotive powertrain and body electronics where component reliability validation is mandatory. |
Applications
| Automotive Power Distribution | Industrial Sensor Interface |
|---|---|
Use Scenario: Protection of 12 V battery-fed ECUs against load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Bidirectional TVS placed between power rail and ground to clamp ±100 V spikes within 1 ns. Use Value: Prevents latch-up or permanent damage to CAN transceivers and MCU power domains during ISO 7637-2 Pulse 5a events. | Use Scenario: Shielding 4–20 mA current-loop sensor outputs from ESD and inductive switching noise in factory automation. IC Role / Device Role / Timing Role: Low-capacitance (≈200 pF) bidirectional clamp across signal and return lines to suppress ±8 kV contact ESD per IEC 61000-4-2. Use Value: Maintains analog signal integrity while limiting transient-induced offset errors to <1 LSB in 16-bit ADC front-ends. |
| Telecom Line Card Protection | Consumer USB Port Surge Guard |
Use Scenario: Safeguarding Ethernet PHYs and PoE injectors from lightning-induced surges on RJ45 ports. IC Role / Device Role / Timing Role: Primary-level TVS on each twisted pair, coordinated with GDT secondary protection to meet GR-1089-CORE Level 3. Use Value: Limits common-mode voltage excursion to <30 V during 10/1000 µs 1 kA surge, preserving PHY silicon integrity. | Use Scenario: Adding robustness to USB 2.0 data lines (D+/D−) against user-handling ESD in portable audio docks and charging hubs. IC Role / Device Role / Timing Role: Bidirectional clamp directly at connector, minimizing trace inductance to achieve sub-1 ns response time. Use Value: Passes ±15 kV air/±8 kV contact ESD (IEC 61000-4-2) without data corruption or port reset events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16CA-M3 | Lower PPPM (600 W), smaller SMB package (DO-214AA), higher RθJA (110 °C/W) | Reduced surge margin; suitable only for lower-energy threats (e.g., IEC 61000-4-2 ESD, not IEC 61000-4-5) | Select when board space is constrained and surge threat level is limited to Class 3 ESD or low-energy transients. |
| SMCJ16A-M3/57T | Unidirectional version; same VWM, VC, PPPM, but cathode-marked and asymmetric clamping | Requires correct polarity orientation; unsuitable for AC or floating nodes; lower leakage at VWM (1.0 µA vs. 1.0 µA for CA) | Choose only for DC-biased rails where polarity is fixed and reverse leakage must be minimized. |
Compared with SMBJ16CA-M3, SMCJ16CA-M3/57T delivers 2.5× higher surge power handling and superior thermal dissipation; versus SMCJ16A-M3/57T, it eliminates polarity dependency at the cost of slightly higher leakage-making it the preferred choice for bidirectional signal integrity and floating bus protection.
Availability
SMCJ16CA-M3/57T is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interface, telecom line card protection, and consumer USB port surge guard applications requiring stable component supply and halogen-free compliance.
Supply support for SMCJ16CA-M3/57T 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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMCJ series is engineered for high-energy transient suppression in harsh environments-including automotive, industrial, and telecom infrastructure-where consistent clamping performance and long-term stability under surge stress are critical.
FAQ
What is the clamping voltage of SMCJ16CA-M3/57T at its rated peak pulse current?
The SMCJ16CA-M3/57T has a maximum clamping voltage (VC) of 26.0 V at its rated peak pulse current (IPPM) of 57.7 A under the standard 10/1000 µs waveform. This value is measured with the device mounted on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per JEDEC guidelines. The SMCJ16CA-M3/57T maintains this clamping performance symmetrically in both directions due to its bidirectional construction.
Is SMCJ16CA-M3/57T suitable for automotive applications requiring AEC-Q101 qualification?
The SMCJ16CA-M3/57T itself is not AEC-Q101 qualified; however, Vishay offers the HM3-suffixed variant (e.g., SMCJ16CAHM3_A/H) which is fully AEC-Q101 qualified. The SMCJ16CA-M3/57T shares identical electrical and thermal specifications with the HM3 version-only differing in qualification status and traceability documentation. For production automotive designs, specify the HM3 part; SMCJ16CA-M3/57T remains appropriate for pre-qualification prototyping or non-automotive industrial use.
How does the bidirectional design of SMCJ16CA-M3/57T affect PCB layout compared to unidirectional TVS diodes?
The SMCJ16CA-M3/57T has no polarity marking and requires no orientation during placement, simplifying automated assembly and eliminating risk of reverse installation. Unlike unidirectional variants such as SMCJ16A-M3/57T-which require cathode alignment toward the protected circuit's ground reference-the SMCJ16CA-M3/57T can be placed across any two nodes needing symmetrical overvoltage protection, including floating differential pairs or AC-coupled lines. This reduces design review overhead and improves layout flexibility.
What is the thermal resistance profile of SMCJ16CA-M3/57T, and how does it impact power derating?
The SMCJ16CA-M3/57T has a typical junction-to-lead thermal resistance (RθJL) of 15 °C/W and junction-to-ambient resistance (RθJA) of 75 °C/W when mounted per recommended pad layout. At ambient temperatures above 25 °C, its 6.5 W steady-state power dissipation (PD) must be linearly derated by 0.053 W/°C beyond 50 °C. These values directly inform heatsinking decisions and define safe operating area boundaries during repetitive surge events.
Can SMCJ16CA-M3/57T be used to protect high-speed data lines like USB 2.0 or RS-485?
Yes-SMCJ16CA-M3/57T is suitable for protecting medium-speed data lines including USB 2.0 (480 Mbps) and RS-485 (10–50 Mbps), provided layout minimizes parasitic inductance. Its typical junction capacitance is ~200 pF at zero bias, which introduces negligible signal distortion at these rates when placed close to connectors. For >1 Gbps interfaces (e.g., USB 3.0, PCIe), lower-capacitance TVS arrays are recommended-but the SMCJ16CA-M3/57T remains effective for ESD and surge hardening of legacy and industrial serial links.
SMCJ16CA-M3/57T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- 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 (SMC)
SMCJ16CA-M3/57T FAQ
1.How can I place an order for SMCJ16CA-M3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ16CA-M3/57T 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-M3/57T reliable?
The price and inventory of SMCJ16CA-M3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ16CA-M3/57T is usually 5 days.
3.What payment methods are accepted for SMCJ16CA-M3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ16CA-M3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ16CA-M3/57T?
SMCJ16CA-M3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ16CA-M3/57T 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-M3/57T?
For technical support, including SMCJ16CA-M3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ16CA-M3/57T requirements.
6.How does Aetrix verify that SMCJ16CA-M3/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ16CA-M3/57T 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-M3/57T meets industry standards.
7.What is the process for return or replacement of SMCJ16CA-M3/57T?
All SMCJ16CA-M3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ16CA-M3/57T, 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-M3/57T part is unused and in its original packaging.
Return procedure for SMCJ16CA-M3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ16CA-M3/57T Tags
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