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Vishay General Semiconductor - Diodes Division SMCJ36CA-M3/57T
- Part No.:
- SMCJ36CA-M3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ36CA-M3/57T.pdf
- Description:
- TVS DIODE 36VWM 58.1VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,739
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Product details
Overview
SMCJ36CA-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 36 V standoff voltage (VWM), 58.1 V maximum clamping voltage (VC) at 25.8 A peak pulse current (IPPM), and 1500 W peak pulse power (10/1000 µs waveform), commonly deployed on automotive sensor signal lines and industrial I/O interfaces.
For engineers reviewing the SMCJ36CA-M3/57T datasheet, SMCJ36CA-M3/57T pinout, SMCJ36CA-M3/57T application, or SMCJ36CA-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 placement on 8 mm × 8 mm copper pads.
Technical Context
This device operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (>1 MΩ leakage at 36 V), but triggers into low-impedance conduction when transient voltage exceeds its 40.0–44.2 V breakdown range (VBR at 1 mA). Its glass-passivated junction ensures stable avalanche characteristics and fast response (<1 ns).
Designed for bidirectional transients, SMCJ36CA-M3/57T delivers symmetrical clamping in both polarities without polarity marking - unlike unidirectional variants - and meets J-STD-020 MSL Level 1 with 260 °C reflow peak, supporting lead-free assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - Maximum continuous reverse operating voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR min/max | 40.0 V / 44.2 V at 1 mA - Confirmed breakdown threshold range; ensures reliable triggering across process variation and temperature. |
| VC @ IPPM | 58.1 V at 25.8 A - Clamped voltage during 10/1000 µs surge; determines maximum stress imposed on protected IC or MOSFET. |
| PPPM | 1500 W - Peak pulse power handling capacity; enables suppression of high-energy transients like ISO 7637-2 Load Dump pulses. |
| TJ max | +150 °C - Maximum junction temperature; supports operation in under-hood automotive environments and industrial enclosures. |
| Package | SMC (DO-214AB) - Surface-mount outline with 7.75 mm × 6.22 mm footprint and 2.62 mm height; optimized for thermal dissipation on 8 mm × 8 mm copper pads. |
Pinout & Package
SMCJ36CA-M3/57T uses the standard SMC (DO-214AB) package: a two-terminal, bidirectional device with no polarity marking. Terminals are matte tin-plated leads, solderable per J-STD-002 and JESD 22-B102, and meet JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional surge path | No functional distinction between terminals; either terminal serves as input or return path depending on transient polarity. |
| Case (cathode band absent) | Thermal and mechanical interface | Exposed metal slug provides primary thermal conduction path to PCB copper; requires minimum 8 mm × 8 mm pad per terminal for rated power derating. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR, VC, and IPPM performance in both directions - eliminates need for polarity-aware layout or orientation verification. |
| Low incremental surge resistance | Enables tighter clamping (58.1 V at 25.8 A) versus competing 36 V TVS devices - reduces voltage overshoot on protected data lines. |
| AEC-Q101 qualification pathway | M3 suffix denotes halogen-free, RoHS-compliant construction; HM3 variant is AEC-Q101 qualified - supports automotive-grade sourcing without redesign. |
| MSL Level 1 rating | Allows unlimited floor life and single reflow at 260 °C peak - simplifies manufacturing flow and eliminates baking requirements. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and inductive switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed directly at connector entry point, clamping surges before they reach signal conditioning circuitry. Use Value: Maintains signal integrity by limiting transient voltage to ≤58.1 V, preventing latch-up or gate oxide damage in downstream 3.3 V/5 V interface ICs. | Use Scenario: Safeguarding digital input modules in programmable logic controllers against field-wiring induced surges from relay coil flyback or motor drive noise. IC Role / Device Role / Timing Role: Primary front-end protection element on 24 V DC input channels, coordinated with series impedance and filtering. Use Value: Withstands repeated 1500 W surges without degradation, enabling long-term reliability in factory automation environments with frequent switching events. |
| Telecom Line Interface | Consumer Power Adapter ESD |
Use Scenario: Shielding Ethernet PHY interfaces and RS-485 transceivers in network switches and base stations from lightning-induced surges on external cabling. IC Role / Device Role / Timing Role: First-stage clamping device in multi-stage protection architecture, absorbing bulk energy before secondary TVS or GDT stages. Use Value: Symmetrical bidirectional response ensures equal protection against positive and negative lightning-induced transients on differential pairs. | Use Scenario: Adding secondary-level surge immunity to USB-C and barrel-jack power inputs in smart home hubs and audio equipment exposed to user-handling ESD. IC Role / Device Role / Timing Role: Secondary clamp after primary MOV or polymer PTC, providing precise low-clamping-voltage protection for DC-DC controller ICs. Use Value: 58.1 V clamping prevents overvoltage shutdown of 40 V-rated buck controllers during 8 kV contact ESD events per IEC 61000-4-2. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC36CA-E3/57T (Vishay) | Same VWM/VC specs but lower PPPM (600 W); SOD-123FL package (smaller, lower thermal mass) | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a load dump simulation | Select only for space-constrained consumer applications where 1500 W surge capacity is not required. |
| 1.5KE36CA (ON Semiconductor) | Same 36 V VWM and bidirectional function, but DO-201 package (axial leaded); higher RθJA (65 °C/W vs. 75 °C/W) | Requires through-hole assembly; less suitable for high-density SMT boards or automated production | Choose only for legacy designs retaining axial components or where board-level rework accessibility is prioritized over density. |
Compared with SAC36CA-E3/57T and 1.5KE36CA, SMCJ36CA-M3/57T delivers superior surge energy handling in an industry-standard SMT package, enabling compact, high-reliability protection for automotive and industrial systems requiring AEC-Q101 traceability pathways.
Availability
SMCJ36CA-M3/57T is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection, and consumer power adapter surge immunity requiring stable component supply and halogen-free compliance.
Supply support for SMCJ36CA-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, power efficiency, and automotive qualification.
The SMCJ series targets high-energy transient suppression in harsh environments, with design focus on automotive electronics, industrial controls, and telecom infrastructure requiring robust, standardized SMT TVS solutions.
FAQ
What is the clamping voltage of SMCJ36CA-M3/57T at its rated peak pulse current?
The SMCJ36CA-M3/57T has a maximum clamping voltage (VC) of 58.1 V when subjected to its rated peak pulse current of 25.8 A under the standard 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and confirmed in Vishay's Document Number 88394, ensuring predictable voltage limiting during surge events. The SMCJ36CA-M3/57T maintains this clamping performance symmetrically in both directions due to its bidirectional construction.
Is SMCJ36CA-M3/57T suitable for automotive applications requiring AEC-Q101 qualification?
The SMCJ36CA-M3/57T itself carries the M3 suffix, indicating halogen-free and RoHS-compliant construction, but is not AEC-Q101 qualified. However, Vishay offers the HM3 variant (e.g., SMCJ36CA-HM3/57T) which adds AEC-Q101 qualification while retaining identical electrical specs and SMC package. For automotive use, specify the HM3 version to ensure compliance; the SMCJ36CA-M3/57T remains appropriate for commercial/industrial applications where qualification is not mandated.
How does the SMCJ36CA-M3/57T differ from unidirectional SMCJ36A-M3/57T?
The SMCJ36CA-M3/57T is bidirectional with symmetrical breakdown and clamping behavior in both polarities and no cathode band marking, whereas the unidirectional SMCJ36A-M3/57T has a marked cathode end and conducts only in reverse bias. Their VWM (36 V), VBR (40.0–44.2 V), and VC (58.1 V) are identical, but the CA version is mandatory for AC-coupled or differential signal lines where polarity reversal occurs. The SMCJ36CA-M3/57T avoids incorrect orientation during placement and eliminates polarity-dependent failure modes.
What PCB layout guidance applies to SMCJ36CA-M3/57T for optimal thermal performance?
To achieve rated 1500 W pulse power, SMCJ36CA-M3/57T must be mounted on minimum 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal, as specified in Vishay Document 88394. These pads serve as heat sinks; reducing pad size or using internal layers without thermal vias causes significant derating above 25 °C ambient. The SMCJ36CA-M3/57T's RθJA of 75 °C/W assumes this layout - deviations require thermal simulation to verify junction temperature stays below +150 °C.
Does SMCJ36CA-M3/57T have a defined junction capacitance for high-speed signal line protection?
No junction capacitance (CJ) value is specified for SMCJ36CA-M3/57T in the official Vishay datasheet (Document 88394), and no typical curve is provided for bidirectional variants at 1 MHz or other frequencies. Unlike unidirectional TVS diodes in this family, the CA series omits CJ characterization - making SMCJ36CA-M3/57T unsuitable for protecting high-speed data lines (e.g., USB 2.0, HDMI) where capacitance <10 pF is critical. For such applications, consult Vishay's TPSM or ESD9B series instead.
SMCJ36CA-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):
- 36V
- Voltage - Breakdown (Min):
- 40V
- Voltage - Clamping (Max) @ Ipp:
- 58.1V
- Current - Peak Pulse (10/1000µs):
- 25.8A
- 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)
SMCJ36CA-M3/57T FAQ
1.How can I place an order for SMCJ36CA-M3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ36CA-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 SMCJ36CA-M3/57T reliable?
The price and inventory of SMCJ36CA-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 SMCJ36CA-M3/57T is usually 5 days.
3.What payment methods are accepted for SMCJ36CA-M3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ36CA-M3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ36CA-M3/57T?
SMCJ36CA-M3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ36CA-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 SMCJ36CA-M3/57T?
For technical support, including SMCJ36CA-M3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ36CA-M3/57T requirements.
6.How does Aetrix verify that SMCJ36CA-M3/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ36CA-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 SMCJ36CA-M3/57T meets industry standards.
7.What is the process for return or replacement of SMCJ36CA-M3/57T?
All SMCJ36CA-M3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ36CA-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 SMCJ36CA-M3/57T part is unused and in its original packaging.
Return procedure for SMCJ36CA-M3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ36CA-M3/57T Tags
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