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Vishay General Semiconductor - Diodes Division SMCJ6.5CA-M3/57T
- Part No.:
- SMCJ6.5CA-M3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ6.5CA-M3/57T.pdf
- Description:
- TVS DIODE 6.5VWM 11.2VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,075
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Product details
Overview
SMCJ6.5CA-M3/57T from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for clamping voltage transients up to 1500 W peak pulse power with 11.2 V maximum clamping voltage at 133.9 A peak surge current and 6.5 V stand-off voltage. It protects sensitive ICs, MOSFETs, and sensor signal lines in automotive, industrial, and telecom systems against inductive switching and lightning-induced surges.
For engineers reviewing the SMCJ6.5CA-M3/57T datasheet, SMCJ6.5CA-M3/57T pinout, SMCJ6.5CA-M3/57T application, or SMCJ6.5CA-M3/57T equivalent, key selection criteria include bidirectional clamping capability, 1500 W 10/1000 μs surge rating, 6.5 V stand-off voltage, 11.2 V clamping voltage at rated IPPM, and halogen-free RoHS-compliant M3 termination.
Technical Context
This TVS diode operates symmetrically in both directions due to its bidirectional construction, enabling protection of AC-coupled or differential signal paths without polarity concerns. Its glass-passivated junction ensures stable breakdown behavior and low incremental surge resistance under repetitive transient stress.
The device features a 150 °C maximum junction temperature, 75 °C/W junction-to-ambient thermal resistance, and meets J-STD-020 MSL Level 1 with 260 °C reflow peak, supporting high-reliability automated SMT assembly in commercial-grade applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VWM) | 6.5 V - Maximum continuous reverse operating voltage before clamping begins |
| Breakdown Voltage (VBR) | 7.22 V min / 7.98 V max at 10 mA - Confirmed voltage threshold where avalanche conduction initiates |
| Clamping Voltage (VC) | 11.2 V at 133.9 A IPPM - Peak voltage seen by protected circuit during full-rated 10/1000 μs surge |
| Peak Pulse Power (PPPM) | 1500 W - Surge energy handling capacity per single 10/1000 μs waveform under defined PCB pad conditions |
| Package | SMC (DO-214AB) - Standardized 2-pin surface-mount outline with 8.0 mm × 8.0 mm copper pad thermal requirement |
| Operating Temperature | -55 °C to +150 °C - Full functional range for under-hood automotive, industrial control, and outdoor telecom environments |
| RoHS Compliance | Halogen-free, RoHS-compliant (M3 suffix) - Meets JEDEC JESD201 Class 2 whisker resistance and UL 94 V-0 flammability |
Pinout & Package
SMCJ6.5CA-M3/57T uses the SMC (DO-214AB) package: a 2-terminal, non-polarized surface-mount case with no cathode marking for bidirectional operation. Thermal performance requires 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal per Vishay's derating guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional avalanche junction | No polarity marking; terminals interchangeable - enables protection of AC, differential, or floating signal lines |
| Case (body) | Thermal path / mechanical anchor | Non-conductive molded compound; requires specified copper pad area for thermal dissipation and mechanical reliability |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power | Enables robust protection against IEC 61000-4-5 Level 4 (4 kV) surges on power and signal lines without external heatsinking |
| Glass-passivated junction | Ensures stable VBR over lifetime and improved reliability vs. epoxy-passivated alternatives in humid or thermally cycled environments |
| MSL Level 1, 260 °C peak | Supports standard lead-free reflow profiles without moisture-related popcorning or delamination risk |
| Low clamping ratio (VC/VBR ≈ 1.4) | Minimizes overvoltage stress on downstream components - critical for 3.3 V or 5 V logic interface protection |
| AEC-Q101 qualification option | HE3/HM3 variants available for automotive applications; this M3 version is commercial-grade but shares identical die and process |
Applications
| Automotive Sensor Signal Protection | Industrial PLC Analog Input Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector entry point to shunt surge energy before it reaches signal conditioning ICs. Use Value: Maintains signal integrity under 10/1000 μs surges up to 133.9 A while holding clamped voltage ≤11.2 V - compatible with 12 V rail and 3.3 V microcontroller I/O tolerance. |
Use Scenario: Safeguarding 4–20 mA current loop inputs and ±10 V analog inputs in programmable logic controllers exposed to motor drive noise and relay switching transients. IC Role / Device Role / Timing Role: Primary transient suppressor across input terminals, working in parallel with filtering capacitors and series impedance. Use Value: Withstands repeated 1500 W surges without parameter shift, ensuring long-term calibration stability and eliminating need for field replacement after transient events. |
| Telecom Line Interface Protection | Consumer Power Adapter ESD/Surge Guard |
Use Scenario: Front-end protection of Ethernet PHYs, DSL line drivers, and PoE injectors against lightning-induced common-mode surges on twisted-pair cables. IC Role / Device Role / Timing Role: Bidirectional TVS placed differentially across pairs and common-mode to chassis ground to clamp both modes simultaneously. Use Value: Symmetrical VBR (7.22–7.98 V) and VC (11.2 V) ensure balanced clamping on differential signals, preserving signal symmetry and minimizing jitter in high-speed links. |
Use Scenario: Secondary-side overvoltage suppression in AC/DC adapters and USB-C PD chargers subjected to capacitor discharge and fast transient bursts. IC Role / Device Role / Timing Role: Final-stage protector between DC output and connected device, absorbing residual transients that bypass primary-side MOVs. Use Value: Halogen-free M3 termination ensures compliance with stringent environmental regulations in consumer electronics, while 11.2 V clamping prevents damage to 5 V USB peripherals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.5CA-E3/52T | Lower PPPM (600 W), SMB (DO-214AA) package, 10.5 V VC at 57.1 A IPPM | Suitable for lower-energy transients; limited to PCBs with tighter space constraints and reduced surge exposure | Select when board area is constrained and surge threat level is ≤IEC 61000-4-5 Level 2 |
| SMCJ6.5CAHE3_A/57T | Identical electrical specs; AEC-Q101 qualified, HE3 suffix, same SMC package and M3-equivalent termination | Required for automotive OEM designs needing formal qualification evidence and extended temperature validation | Choose for automotive applications requiring documented AEC-Q101 compliance and traceable qualification reports |
Compared with SMCJ6.5CA-M3/57T, SMBJ6.5CA-E3/52T trades surge capacity for smaller footprint, while SMCJ6.5CAHE3_A/57T adds automotive qualification without altering electrical performance - enabling direct substitution where qualification status, not form factor, drives selection.
Availability
SMCJ6.5CA-M3/57T is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC analog inputs, telecom line interfaces, and consumer power adapter protection requiring stable component supply and halogen-free compliance.
Supply support for SMCJ6.5CA-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, TVS devices, and optoelectronics 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 infrastructure where robustness, consistency, and standardized packaging are critical.
FAQ
What is the clamping voltage of SMCJ6.5CA-M3/57T at its rated peak pulse current?
The SMCJ6.5CA-M3/57T has a maximum clamping voltage (VC) of 11.2 V at its rated peak pulse current (IPPM) of 133.9 A under the standard 10/1000 μs waveform condition. This value is measured with the device mounted on 0.31" × 0.31" copper pads per terminal, as specified in Vishay's datasheet Figure 2 and Table on page 2. The SMCJ6.5CA-M3/57T maintains this clamping performance across its full operating temperature range.
Is SMCJ6.5CA-M3/57T suitable for automotive applications?
The SMCJ6.5CA-M3/57T is a commercial-grade, halogen-free RoHS-compliant variant and is not AEC-Q101 qualified. However, it shares identical die design and process with the AEC-Q101-qualified SMCJ6.5CAHE3_A/57T. For non-OEM automotive subsystems or aftermarket modules where formal qualification is not mandated, the SMCJ6.5CA-M3/57T delivers equivalent electrical performance and thermal robustness - but SMCJ6.5CA-M3/57T must be validated per end-application requirements.
How does the bidirectional nature of SMCJ6.5CA-M3/57T affect its PCB layout?
Because the SMCJ6.5CA-M3/57T is bidirectional, it has no polarity marking and both terminals are functionally identical - eliminating orientation concerns during placement. This simplifies automated assembly and allows use in AC-coupled, differential, or floating circuits without directional verification. The SMCJ6.5CA-M3/57T still requires symmetric 0.31" × 0.31" copper pads per terminal for thermal and surge performance, as defined in Vishay's mechanical drawings.
What is the maximum junction temperature rating for SMCJ6.5CA-M3/57T?
The SMCJ6.5CA-M3/57T has a maximum junction temperature (TJ max.) of +150 °C and a minimum of -55 °C, supporting operation in under-hood automotive, industrial control cabinets, and outdoor telecom enclosures. Its thermal resistance (RθJA) is 75 °C/W under standard mounting conditions, meaning power dissipation must be managed via PCB copper area - especially important when operating near TJ max. during sustained surge events. The SMCJ6.5CA-M3/57T remains fully functional across this full range without parameter drift.
Does SMCJ6.5CA-M3/57T meet any industry surge immunity standards?
The SMCJ6.5CA-M3/57T is rated for 1500 W peak pulse power with a 10/1000 μs waveform, aligning with the energy levels required for IEC 61000-4-5 Level 4 (4 kV line-to-ground, 2 kV line-to-line) testing when applied with appropriate series impedance. While the device itself is not "certified" to the standard, its electrical characteristics enable system-level compliance when integrated per Vishay's recommended layout and thermal guidelines. The SMCJ6.5CA-M3/57T is widely deployed in designs meeting these standards.
SMCJ6.5CA-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):
- 6.5V
- Voltage - Breakdown (Min):
- 7.22V
- Voltage - Clamping (Max) @ Ipp:
- 11.2V
- Current - Peak Pulse (10/1000µs):
- 133.9A
- 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)
SMCJ6.5CA-M3/57T FAQ
1.How can I place an order for SMCJ6.5CA-M3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ6.5CA-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 SMCJ6.5CA-M3/57T reliable?
The price and inventory of SMCJ6.5CA-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 SMCJ6.5CA-M3/57T is usually 5 days.
3.What payment methods are accepted for SMCJ6.5CA-M3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ6.5CA-M3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ6.5CA-M3/57T?
SMCJ6.5CA-M3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ6.5CA-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 SMCJ6.5CA-M3/57T?
For technical support, including SMCJ6.5CA-M3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ6.5CA-M3/57T requirements.
6.How does Aetrix verify that SMCJ6.5CA-M3/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ6.5CA-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 SMCJ6.5CA-M3/57T meets industry standards.
7.What is the process for return or replacement of SMCJ6.5CA-M3/57T?
All SMCJ6.5CA-M3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ6.5CA-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 SMCJ6.5CA-M3/57T part is unused and in its original packaging.
Return procedure for SMCJ6.5CA-M3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ6.5CA-M3/57T Tags
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