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Vishay General Semiconductor - Diodes Division SMCJ36CA/57T
- Part No.:
- SMCJ36CA/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ36CA/57T.pdf
- Description:
- TVS DIODE 36VWM 58.1VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,303
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Product details
Overview
SMCJ36CA/57T from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-214AB (SMCJ) package, designed for robust overvoltage protection of sensitive electronics. It features a 36 V stand-off voltage (VWM), 40.0–44.2 V breakdown voltage (VBR) at 1 mA, 58.1 V maximum clamping voltage (VC) at 25.8 A peak pulse current (IPPM), and 1500 W peak pulse power dissipation (PPPM) under 10/1000 µs waveform.
For engineers reviewing the SMCJ36CA/57T datasheet, SMCJ36CA/57T pinout, SMCJ36CA/57T application, or SMCJ36CA/57T equivalent, key selection criteria include bi-directional clamping capability, AEC-Q101 qualification for automotive use, UL 497B recognition, MSL Level 1 moisture sensitivity, and compatibility with automated SMT placement on standard PCB copper pads.
Technical Context
The SMCJ36CA/57T operates as a silicon avalanche diode with glass-passivated junction, delivering symmetrical clamping in both polarities - critical for protecting AC-coupled or floating signal lines. Its low incremental surge resistance and very fast response time (<1 ns) enable effective suppression of ESD, lightning-induced surges, and inductive switching transients.
Thermal performance is defined by RθJA = 75 °C/W (typ.) and RθJL = 15 °C/W (typ.), with junction temperature rated from –55 °C to +150 °C. It meets JESD22-B102 solderability and JESD201 class 1A whisker testing (E3 suffix), and is RoHS-compliant per UL 94 V-0 molding compound.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working range for protected circuitry. |
| VBR min/max | 40.0 V / 44.2 V at IT = 1 mA - Confirmed breakdown threshold ensures reliable turn-on during overvoltage events. |
| VC @ IPPM | 58.1 V at 25.8 A - Clamped voltage under 10/1000 µs surge; determines worst-case stress on downstream components. |
| PPPM | 1500 W - Peak pulse power handling capacity; enables protection against high-energy transients like ISO 7637-2 Pulse 5a. |
| ID @ VWM | 1.0 µA - Reverse leakage at stand-off voltage; ensures minimal power loss and signal integrity in standby. |
| TJ range | –55 °C to +150 °C - Full automotive-grade operating and storage temperature envelope. |
| Package | DO-214AB (SMCJ) - Surface-mount outline with J-bend leads; compatible with standard 8.0 mm × 8.0 mm copper pad layout. |
Pinout & Package
SMCJ36CA/57T uses the DO-214AB (SMCJ) surface-mount package with two terminals: anode and cathode. As a bi-directional device, it has no polarity marking - both terminals are functionally identical and interchangeable in circuit layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (positive half-cycle) | Conducts surge current when voltage exceeds VBR in positive direction; forms one side of symmetrical avalanche path. |
| Cathode | Transient current entry (negative half-cycle) | Conducts surge current when voltage exceeds VBR in negative direction; completes bi-directional clamping path. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive underhood and infotainment applications per stress test requirements including HTOL, TCT, and ESD. |
| UL 497B recognized | Approved for telecom and industrial signal line protection under Underwriters Laboratories' protector classification (File E136766). |
| MSL Level 1 | Unlimited floor life at ≤30 °C/85 % RH; supports reflow up to 260 °C peak without baking or special handling. |
| Glass-passivated junction | Enhances long-term reliability and stability of VBR and leakage under thermal cycling and humidity exposure. |
| Low clamping ratio (VC/VBR) | 1.45 typical (58.1 V / 40.0 V) - minimizes let-through voltage while maintaining high surge current capability. |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting LIN bus, CAN FD stub lines, or 12 V/24 V power rails from load dump and alternator ripple in vehicle ECUs. IC Role / Device Role / Timing Role: Bi-directional TVS clamp placed across power rail or differential pair to shunt surge energy before reaching MCU or transceiver. Use Value: Withstands 1500 W pulses and operates from –55 °C to +150 °C, meeting ISO 16750-2 and ISO 7637-2 requirements without derating. |
Use Scenario: Safeguarding analog outputs (4–20 mA), RS-485 transceivers, or I²C lines in factory automation sensors exposed to motor switching noise. IC Role / Device Role / Timing Role: Parallel-connected transient suppressor on signal lines to limit voltage excursions during EFT bursts or cable discharge events. Use Value: 1.0 µA leakage at 36 V ensures minimal impact on precision current loops; 58.1 V clamping protects 3.3 V/5 V interface ICs with margin. |
| Telecom DSL/ADSL Line Protection | Consumer Appliance Motor Control |
Use Scenario: Front-end protection of ADSL line drivers and receivers against lightning-induced surges on twisted-pair telephone lines. IC Role / Device Role / Timing Role: Bi-directional TVS placed between tip/ring and ground to clamp common-mode transients while preserving signal integrity. Use Value: UL 497B recognition confirms suitability for telecom infrastructure; symmetrical VBR ensures balanced clamping on differential pairs. |
Use Scenario: Suppressing inductive kickback from brushed DC motors in smart home appliances (e.g., washing machine control boards). IC Role / Device Role / Timing Role: Across-motor terminals or across H-bridge outputs to absorb flyback energy during PWM switching. Use Value: 200 A IFSM rating (uni-directional reference) indicates robustness against repetitive commutation spikes; DO-214AB footprint fits compact motor driver layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36CA | Same VWM/VBR/VC ratings but lower PPPM (600 W) and smaller SMB package (DO-214AA). | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a or high-current load dump. | Select SMBJ36CA only where board space is constrained and surge energy remains below 600 W. |
| 1.5KE36CA | Through-hole TO-218 package; same 36 V VWM but higher VC (64.5 V) and identical 1500 W PPPM. | Requires through-hole assembly; not suitable for fully SMT production or high-density layouts. | Choose 1.5KE36CA when legacy through-hole design or higher thermal mass is prioritized over SMT compatibility. |
Compared with SMBJ36CA and 1.5KE36CA, the SMCJ36CA/57T uniquely balances 1500 W surge capability, DO-214AB SMT compatibility, AEC-Q101 qualification, and UL 497B recognition - making it the preferred choice for new automotive and industrial SMT designs requiring certified high-energy protection.
Availability
SMCJ36CA/57T is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor interfaces, telecom line cards, and consumer appliance motor controllers requiring stable component supply across extended temperature ranges and high-reliability surge environments.
Supply support for SMCJ36CA/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, automotive qualification, and application-specific performance.
The SMCJ36CA/57T belongs to Vishay's TRANSZORB® family of surface-mount TVS diodes, engineered specifically for high-power transient suppression in automotive, industrial, and telecom systems where AEC-Q101 compliance and UL recognition are mandatory.
FAQ
What does the "CA" suffix mean in SMCJ36CA/57T?
The "CA" suffix in SMCJ36CA/57T denotes a bi-directional configuration - meaning the device provides symmetrical transient voltage suppression in both polarities. Unlike uni-directional "A" variants, SMCJ36CA/57T has no cathode band marking and functions identically regardless of terminal orientation, making it ideal for AC-coupled or floating signal lines.
Is SMCJ36CA/57T suitable for automotive applications?
Yes, SMCJ36CA/57T is AEC-Q101 qualified and rated for operation from –55 °C to +150 °C, meeting key stress-test requirements for automotive underhood and body electronics. Its 1500 W peak pulse power and UL 497B recognition further validate its use in ISO 7637-2-compliant power line protection circuits within ECUs and ADAS modules.
What is the clamping voltage of SMCJ36CA/57T under surge conditions?
The SMCJ36CA/57T has a maximum clamping voltage (VC) of 58.1 V at 25.8 A peak pulse current (IPPM), measured using the standardized 10/1000 µs waveform. This value represents the upper voltage limit imposed on protected circuitry during a full-rated surge event, ensuring downstream ICs remain within safe operating margins.
Does SMCJ36CA/57T require special PCB layout considerations?
Yes - Vishay specifies mounting on minimum 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal to achieve rated 1500 W pulse power. Smaller pads cause thermal derating; inadequate copper area increases junction temperature and reduces surge endurance. The DO-214AB footprint must follow recommended pad dimensions in the datasheet for SMCJ36CA/57T.
How does the SMCJ36CA/57T differ from the SMCJ36A variant?
The SMCJ36CA/57T is bi-directional with symmetrical clamping, while SMCJ36A is uni-directional and marked with a cathode band. SMCJ36CA/57T has identical VWM (36 V), VBR (40.0–44.2 V), and PPPM (1500 W), but differs in polarity behavior, leakage (1.0 µA vs. 1.0 µA), and application scope - SMCJ36CA/57T is used where bidirectional surge paths exist, such as data lines or AC supplies.
SMCJ36CA/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:
- Obsolete
- 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 (SMCJ)
SMCJ36CA/57T FAQ
1.How can I place an order for SMCJ36CA/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ36CA/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/57T reliable?
The price and inventory of SMCJ36CA/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/57T is usually 5 days.
3.What payment methods are accepted for SMCJ36CA/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ36CA/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ36CA/57T?
SMCJ36CA/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ36CA/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/57T?
For technical support, including SMCJ36CA/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ36CA/57T requirements.
6.How does Aetrix verify that SMCJ36CA/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ36CA/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/57T meets industry standards.
7.What is the process for return or replacement of SMCJ36CA/57T?
All SMCJ36CA/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ36CA/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/57T part is unused and in its original packaging.
Return procedure for SMCJ36CA/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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