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Vishay General Semiconductor - Diodes Division SMC3K36CA-M3/57
- Part No.:
- SMC3K36CA-M3/57
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMC3K36CA-M3/57.pdf
- Description:
- TVS DIODE 36VWM 58.1VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:1,624
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Product details
Overview
SMC3K36CA-M3/57 from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, rated for 3000 W peak pulse power (10/1000 μs), 40.0–44.2 V breakdown voltage, and 58.1 V maximum clamping voltage at 51.6 A surge current. It protects MOSFETs, ICs, and sensor signal lines in automotive and industrial power electronics against inductive switching transients.
For engineers reviewing the SMC3K36CA-M3/57 datasheet, SMC3K36CA-M3/57 pinout, SMC3K36CA-M3/57 application, or SMC3K36CA-M3/57 equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, 3000 W surge rating, low incremental surge resistance, and compatibility with wave-soldering restrictions on PCB bottom side mounting.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector triggered by transient overvoltage events exceeding its standoff voltage of 36 V. Its bidirectional architecture enables symmetrical clamping across both polarities without external polarity management.
It delivers 51.6 A peak pulse current under standardized 10/1000 μs waveform conditions, with clamping voltage held to ≤58.1 V - ensuring downstream components remain below safe operating thresholds during surge events. Thermal performance is rated for junction temperatures from –55 °C to +150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 μs) | 3000 W - sustains high-energy transients without failure in automotive load-dump or inductive kick scenarios |
| Breakdown Voltage VBR | 40.0–44.2 V at 1.0 mA - defines precise voltage threshold where avalanche conduction begins |
| Standoff Voltage VWM | 36 V - maximum continuous reverse working voltage before leakage exceeds 2.0 μA |
| Clamping Voltage VC | 58.1 V at 51.6 A - limits voltage seen by protected circuit during full-rated surge event |
| Operating Temperature Range | –55 °C to +150 °C - supports under-hood automotive and industrial environments |
| Package | SMC (DO-214AB) - industry-standard surface-mount outline with 8.0 mm × 8.0 mm copper pad requirement |
| Qualification | AEC-Q101 qualified - validated for automotive-grade reliability including temperature cycling and HTRB |
Pinout & Package
SMC3K36CA-M3/57 uses the standard SMC (DO-214AB) package: molded plastic body with two coplanar matte tin-plated leads, compliant with J-STD-002 solderability and JESD 201 Class 2 whisker resistance. Polarity is unmarked due to bidirectional construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient current path | Either terminal serves as input/output - no directional installation required; clamps voltage above VWM in either polarity |
| Cathode/Anode (symmetrical) | Transient current return path | Completes low-impedance shunt path to ground or rail during overvoltage; bidirectional symmetry eliminates orientation dependency |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity awareness |
| 3000 W peak pulse rating | Handles severe ISO 7637-2 Pulse 5a/b load-dump surges in 12 V automotive systems |
| AEC-Q101 qualification | Validated for automotive use including HTGB, TC, and UHAST - suitable for engine control and ADAS modules |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life before reflow; no baking required prior to assembly |
| UL 497B recognition | Meets safety standards for telecom and industrial equipment requiring certified surge protection |
Applications
| Automotive Power Distribution | Industrial Sensor Signal Lines |
|---|---|
Use Scenario: Protecting 12 V power rails feeding ECUs and body control modules from alternator load dump and inductive switching spikes. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed in parallel with load, clamping voltage to safe levels within nanoseconds. Use Value: Prevents latch-up or permanent damage to microcontrollers and power switches by limiting voltage to ≤58.1 V during 3000 W surges. |
Use Scenario: Safeguarding analog outputs and digital I/O of pressure, temperature, and position sensors in factory automation PLCs. IC Role / Device Role / Timing Role: Bidirectional voltage clamp on differential or single-ended signal pairs exposed to EMI and cable discharge events. Use Value: Maintains signal integrity by suppressing transients up to ±58.1 V while adding <100 pF capacitance at zero bias. |
| Telecom Interface Protection | Consumer Power Adapter Inputs |
Use Scenario: Shielding Ethernet PHY interfaces and RS-485 transceivers from lightning-induced surges and hot-plug transients. IC Role / Device Role / Timing Role: Primary-level TVS placed at connector entry point, preceding secondary filtering and IC-level protection. Use Value: Absorbs up to 3000 W energy per event without degradation, meeting ITU-T K.21 basic protection requirements. |
Use Scenario: Input-stage surge suppression in wall adapters and USB-C PD chargers subjected to line surges and capacitor discharge events. IC Role / Device Role / Timing Role: Standoff-rated clamping device across AC-DC rectifier output or DC bus before primary regulator. Use Value: Ensures compliance with IEC 61000-4-5 Level 3 (2 kV/1 kA) with margin, using only one discrete component. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMC3K36CAHM3/57 | AEC-Q101 qualified variant with identical electrical specs; HM3 suffix denotes automotive qualification grade | Required for new automotive designs; M3 suffix is commercial grade and not AEC-Q101 certified | Select SMC3K36CAHM3/57 when automotive qualification is mandatory; SMC3K36CA-M3/57 remains valid for industrial/commercial use |
| SMC3K33CA-M3/57 | Lower VBR (36.7–40.6 V), lower VWM (33 V), higher IPPM (56.3 A), same PPPM (3000 W) | Better suited for 3.3 V or 5 V logic rail protection where tighter clamping margin is needed | Choose SMC3K33CA-M3/57 if system operating voltage is ≤33 V and clamping headroom must be minimized |
Compared with SMC3K36CA-M3/57, the HM3 variant adds automotive qualification without altering electrical behavior, while SMC3K33CA-M3/57 trades higher clamping margin for lower standoff voltage - enabling finer voltage alignment in low-voltage subsystems.
Availability
SMC3K36CA-M3/57 is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interface protection, telecom surge suppression, and consumer power adapter design requiring stable component supply and long-term sourcing continuity.
Supply support for SMC3K36CA-M3/57 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 SMC3KxxCA series was developed for high-power transient suppression in harsh environments, targeting automotive, industrial, and telecom systems where robustness and repeatable clamping performance are critical.
FAQ
What is the standoff voltage rating of the SMC3K36CA-M3/57?
The SMC3K36CA-M3/57 has a standoff voltage (VWM) of 36 V, meaning it remains non-conductive under continuous reverse bias up to this level while maintaining leakage current ≤2.0 μA. This rating ensures compatibility with 36 V nominal systems and provides margin below its 40.0–44.2 V breakdown range. The SMC3K36CA-M3/57 is designed for reliable operation in such voltage domains without premature conduction.
Is the SMC3K36CA-M3/57 suitable for automotive applications?
The SMC3K36CA-M3/57 is not AEC-Q101 qualified; it carries the M3 suffix indicating commercial-grade qualification. For automotive use, Vishay specifies the HM3-suffix variant (e.g., SMC3K36CAHM3/57). While the SMC3K36CA-M3/57 shares identical electrical characteristics, only the HM3 version meets AEC-Q101 stress test requirements. Therefore, SMC3K36CA-M3/57 is appropriate for industrial or consumer applications but not for new automotive designs.
What package type does the SMC3K36CA-M3/57 use?
The SMC3K36CA-M3/57 uses the SMC (DO-214AB) surface-mount package: a rectangular molded case measuring 7.75 mm × 6.22 mm with coplanar matte tin-plated leads. It requires a minimum 8.0 mm × 8.0 mm copper pad area for thermal dissipation and complies with J-STD-020 MSL Level 1. The SMC3K36CA-M3/57 is supplied in 7-inch tape-and-reel format (57 code, 850 units per reel).
How does the SMC3K36CA-M3/57 compare to SMC3K40CA-M3/57 in clamping performance?
The SMC3K36CA-M3/57 clamps at 58.1 V (at 51.6 A), while SMC3K40CA-M3/57 clamps at 64.5 V (at 46.5 A). Both deliver 3000 W peak pulse power, but the SMC3K36CA-M3/57 offers lower clamping voltage and higher surge current handling - making it preferable for 36 V systems needing tighter voltage limiting. The SMC3K36CA-M3/57 thus provides superior protection margin in applications where downstream components have lower absolute maximum ratings.
Does the SMC3K36CA-M3/57 have polarity markings?
No, the SMC3K36CA-M3/57 has no polarity marking because it is a bidirectional TVS diode. Its symmetrical construction allows installation in either orientation across a protected line - the device clamps overvoltage events equally in both directions. This eliminates orientation errors during placement and simplifies layout for AC or floating signal paths. The SMC3K36CA-M3/57 is functionally identical regardless of lead assignment.
SMC3K36CA-M3/57 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):
- 51.6A
- Power - Peak Pulse:
- 3000W (3kW)
- 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)
SMC3K36CA-M3/57 FAQ
1.How can I place an order for SMC3K36CA-M3/57 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMC3K36CA-M3/57 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 SMC3K36CA-M3/57 reliable?
The price and inventory of SMC3K36CA-M3/57 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMC3K36CA-M3/57 is usually 5 days.
3.What payment methods are accepted for SMC3K36CA-M3/57?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMC3K36CA-M3/57 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMC3K36CA-M3/57?
SMC3K36CA-M3/57 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMC3K36CA-M3/57 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 SMC3K36CA-M3/57?
For technical support, including SMC3K36CA-M3/57 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMC3K36CA-M3/57 requirements.
6.How does Aetrix verify that SMC3K36CA-M3/57 is sourced from the original manufacturer or authorized distributors?
All SMC3K36CA-M3/57 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 SMC3K36CA-M3/57 meets industry standards.
7.What is the process for return or replacement of SMC3K36CA-M3/57?
All SMC3K36CA-M3/57 units undergo pre-shipment inspection (PSI). If there is an issue with SMC3K36CA-M3/57, 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 SMC3K36CA-M3/57 part is unused and in its original packaging.
Return procedure for SMC3K36CA-M3/57:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMC3K36CA-M3/57 Tags
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