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Vishay General Semiconductor - Diodes Division SMCJ16CA-M3/9AT
- Part No.:
- SMCJ16CA-M3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ16CA-M3/9AT.pdf
- Description:
- TVS DIODE 16VWM 26VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,562
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Product details
Overview
SMCJ16CA-M3/9AT 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 clamping voltage (VC) at 57.7 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM) with 10/1000 µs waveform - deployed on power rails and signal lines in automotive ECUs and industrial sensor interfaces.
For engineers reviewing the SMCJ16CA-M3/9AT datasheet, SMCJ16CA-M3/9AT pinout, SMCJ16CA-M3/9AT application, or SMCJ16CA-M3/9AT equivalent, key selection criteria include bidirectional clamping behavior, halogen-free RoHS-compliant M3 suffix, 150 °C max junction temperature, and compatibility with automated SMT placement on 8 mm × 8 mm copper pads per JEDEC standards.
Technical Context
This device operates as a silicon avalanche diode that enters breakdown symmetrically in both polarities above its specified standoff voltage, enabling protection against positive and negative transients without polarity constraints. Its low incremental surge resistance and fast response time (<1 ns) ensure effective suppression of ESD, lightning-induced surges, and inductive switching spikes.
The SMCJ16CA-M3/9AT uses glass-passivated junction construction and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak, supporting high-reliability surface-mount assembly. Thermal resistance is characterized at RθJA = 75 °C/W (typ.) and RθJL = 15 °C/W (typ.), enabling accurate thermal design under repetitive surge conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Standoff Voltage) | 16 V - Maximum continuous reverse voltage before clamping begins; defines operating margin below breakdown. |
| VBR (Breakdown Voltage) | 17.8–19.7 V at IT = 1 mA - Confirmed minimum/maximum avalanche onset range under standardized test current. |
| VC (Clamping Voltage) | 26.0 V at IPPM = 57.7 A - Peak voltage seen by protected circuit during 10/1000 µs surge; determines downstream IC survivability. |
| PPPM (Peak Pulse Power) | 1500 W - Maximum non-repetitive surge energy absorption capability under standard waveform; critical for IEC 61000-4-5 compliance margin. |
| TJ max | +150 °C - Absolute maximum junction temperature; sets upper limit for ambient + power dissipation derating. |
| Package | SMC (DO-214AB) - Industry-standard surface-mount outline with 7.75 mm × 8.13 mm footprint and 3.20 mm height; compatible with IPC-7351B land patterns. |
Pinout & Package
SMCJ16CA-M3/9AT is a two-terminal bidirectional TVS diode housed in the SMC (DO-214AB) package. No polarity marking is present on the case, consistent with bidirectional functionality. 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 conduction path | Both terminals function identically; no cathode band marking; enables placement-independent PCB layout. |
| Case body | Thermal interface | Exposed metal slug provides primary heat path to PCB copper; requires ≥8 mm × 8 mm pad per terminal for rated power dissipation. |
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 rating | Supports Level 4 IEC 61000-4-5 surge immunity (4 kV line-to-earth) when properly mounted. |
| Halogen-free & RoHS-compliant (M3) | Fulfills environmental compliance for automotive and industrial end-equipment without compromising surge performance. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow profile (260 °C peak) without baking preconditioning. |
| Glass-passivated junction | Ensures stable breakdown characteristics and long-term reliability under repeated surge stress. |
Applications
| Automotive Body Control Module | Industrial CAN Transceiver Protection |
|---|---|
Use Scenario: Protecting LIN bus and power supply inputs in door module ECUs exposed to load dump and jump-start transients. IC Role / Device Role / Timing Role: Bidirectional TVS placed at connector entry point to clamp ±100 V transients before they reach MCU and LIN transceiver. Use Value: Maintains system uptime by preventing latch-up or permanent damage to 5 V rail and 12 V input stages during vehicle-level EMC testing. | Use Scenario: Safeguarding differential CANH/CANL pins of ISO 11898-2 transceivers in factory automation nodes. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp limiting voltage excursions to <30 V during EFT bursts and cable discharge events. Use Value: Preserves signal integrity and bit error rate (BER) by suppressing transients without distorting 1 Mbps CAN waveforms. |
| Consumer Appliance Motor Drive | Telecom PoE Interface |
Use Scenario: Shielding microcontroller I/O and gate driver circuits from back-EMF spikes generated by brushed DC motors in smart HVAC systems. IC Role / Device Role / Timing Role: Fast-response TVS across motor coil terminals and logic supply rails to absorb inductive kickback energy. Use Value: Eliminates need for snubber RC networks while meeting UL 60730-1 transient immunity requirements. | Use Scenario: Protecting 48 V DC input stage and data pair terminations in IEEE 802.3af/at powered devices. IC Role / Device Role / Timing Role: Primary surge arrestor on PSE-facing side of PD controller, handling combined mode surges up to 100 V. Use Value: Enables single-stage protection architecture compliant with IEC 61000-4-5 Ed. 3, reducing BOM count vs. multi-stage solutions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16CA-M3/57T | Lower PPPM (600 W), smaller SMB (DO-214AA) package, same VWM/VC ratings. | Suitable for space-constrained consumer designs with lower surge threat levels (IEC 61000-4-2 only). | Select when board area is limited and peak surge energy does not exceed 600 W. |
| SMCJ16A-M3/9AT | Unidirectional version; includes cathode band marking; identical VWM, VBR, VC, and PPPM. | Required where polarity-aware protection is needed (e.g., DC power rails with defined ground reference). | Choose for unidirectional DC systems where reverse polarity fault protection is unnecessary. |
Compared with SMCJ16CA-M3/9AT, the SMBJ16CA-M3/57T offers reduced surge capacity in a smaller footprint, while the SMCJ16A-M3/9AT provides identical electrical performance with directional clamping - making the CA variant optimal for floating or AC-coupled signal paths requiring symmetrical protection.
Availability
SMCJ16CA-M3/9AT is available at Aetrix Electronics and suitable for automotive body electronics, industrial fieldbus interfaces, consumer appliance motor controls, and telecom power-over-Ethernet systems requiring stable component supply and full traceability.
Supply support for SMCJ16CA-M3/9AT 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 application-specific optimization.
The SMCJ series targets high-energy transient suppression in harsh environments, engineered for automotive AEC-Q101 qualification readiness and industrial surge immunity standards including IEC 61000-4-5.
FAQ
What is the clamping voltage of SMCJ16CA-M3/9AT at its rated peak pulse current?
The SMCJ16CA-M3/9AT has a maximum clamping voltage (VC) of 26.0 V when subjected to its rated peak pulse current (IPPM) of 57.7 A using the 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during surge events. The SMCJ16CA-M3/9AT maintains this clamping performance across its full operating temperature range of –55 °C to +150 °C.
Is SMCJ16CA-M3/9AT suitable for automotive applications?
Yes, SMCJ16CA-M3/9AT is qualified to AEC-Q101 when ordered with HE3 or HM3 suffixes; the M3 suffix indicates halogen-free RoHS compliance but not automotive qualification. For automotive use, specify SMCJ16CAHM3_X (e.g., SMCJ16CAHM3A) to obtain AEC-Q101 qualified units. The SMCJ16CA-M3/9AT itself is commercial-grade and widely used in non-safety-critical automotive subsystems such as infotainment power supplies and lighting control modules where full AEC-Q101 is not mandated.
How does the bidirectional nature of SMCJ16CA-M3/9AT affect PCB layout?
The bidirectional design of SMCJ16CA-M3/9AT eliminates polarity constraints: there is no cathode band marking, and either terminal may connect to either side of the protected line. This simplifies layout by removing orientation checks during automated placement and allows symmetric routing on differential pairs or AC-coupled signals. The SMCJ16CA-M3/9AT must still be mounted on minimum 8 mm × 8 mm copper pads per terminal to achieve its rated 1500 W pulse power and thermal performance.
What is the standoff voltage (VWM) and why is it critical for SMCJ16CA-M3/9AT selection?
The standoff voltage (VWM) of SMCJ16CA-M3/9AT is 16 V - the maximum continuous DC or RMS voltage the device can withstand without entering breakdown. Selecting a VWM higher than the system's normal operating voltage (with margin) prevents leakage and false triggering, while ensuring sufficient headroom below VBR. For a 12 V automotive supply, the SMCJ16CA-M3/9AT provides ~33 % margin, balancing protection responsiveness and operational stability.
Does SMCJ16CA-M3/9AT require derating at elevated ambient temperatures?
Yes, SMCJ16CA-M3/9AT must be derated above TA = 25 °C per Figure 2 in Vishay document 88394. Its peak pulse power decreases linearly to zero at +150 °C junction temperature. At 85 °C ambient with standard mounting, the usable PPPM drops to approximately 1050 W. Derating ensures the SMCJ16CA-M3/9AT remains within safe operating area during sustained surge exposure and avoids thermal runaway under repeated transient conditions.
SMCJ16CA-M3/9AT 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 (SMC)
SMCJ16CA-M3/9AT FAQ
1.How can I place an order for SMCJ16CA-M3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ16CA-M3/9AT 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-M3/9AT reliable?
The price and inventory of SMCJ16CA-M3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ16CA-M3/9AT is usually 5 days.
3.What payment methods are accepted for SMCJ16CA-M3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ16CA-M3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ16CA-M3/9AT?
SMCJ16CA-M3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ16CA-M3/9AT 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-M3/9AT?
For technical support, including SMCJ16CA-M3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ16CA-M3/9AT requirements.
6.How does Aetrix verify that SMCJ16CA-M3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCJ16CA-M3/9AT 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-M3/9AT meets industry standards.
7.What is the process for return or replacement of SMCJ16CA-M3/9AT?
All SMCJ16CA-M3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ16CA-M3/9AT, 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-M3/9AT part is unused and in its original packaging.
Return procedure for SMCJ16CA-M3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ16CA-M3/9AT Tags
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