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1.5SMC200CA from ON,ON Semiconductor

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1.5SMC200CA

Manufacturer: ON, VISHAY

BI-DIRECTIONAL GLASS PASSIVATED JUNCTION TRANSIENT VOLTAGE SUPPRESSOR 1500 WATTS, 6.8 THRU 200 VOLTS

Partnumber Manufacturer Quantity Availability
1.5SMC200CA,15SMC200CA ON, VISHAY 153000 In Stock

Description and Introduction

BI-DIRECTIONAL GLASS PASSIVATED JUNCTION TRANSIENT VOLTAGE SUPPRESSOR 1500 WATTS, 6.8 THRU 200 VOLTS The part 15SMC200CA is a Transient Voltage Suppressor (TVS) Diode manufactured by Vishay. It is designed to protect sensitive electronics from voltage transients induced by lightning, inductive load switching, and electrostatic discharge (ESD). The key specifications for the 15SMC200CA are as follows:

- **Peak Pulse Power (10/1000μs):** 1500 W
- **Standoff Voltage (VWM):** 171 V
- **Breakdown Voltage (VBR):** 190 V to 210 V
- **Clamping Voltage (VCL):** 274 V at 10 A
- **Maximum Reverse Leakage Current (IR):** 1 µA at VWM
- **Operating Temperature Range:** -55°C to +150°C
- **Package:** DO-214AB (SMC)

This TVS diode is suitable for applications requiring high surge protection, such as telecommunications, industrial equipment, and automotive systems.

Application Scenarios & Design Considerations

BI-DIRECTIONAL GLASS PASSIVATED JUNCTION TRANSIENT VOLTAGE SUPPRESSOR 1500 WATTS, 6.8 THRU 200 VOLTS# Technical Documentation: 15SMC200CA Transient Voltage Suppressor (TVS)

*Manufacturer: VISHAY*

## 1. Application Scenarios

### Typical Use Cases
The 15SMC200CA is a 15,000W surface mount transient voltage suppressor diode designed for high-power surge protection applications. Typical use cases include:

-  Industrial Equipment Protection : Safeguarding PLCs, motor drives, and control systems from voltage transients
-  Telecommunications Infrastructure : Protecting base station equipment, switching systems, and network interfaces
-  Power Supply Units : Providing secondary protection in AC/DC converters and DC/DC converters
-  Automotive Electronics : Guarding against load dump transients and ESD events in vehicle systems
-  Renewable Energy Systems : Protecting solar inverters and wind turbine control electronics

### Industry Applications
-  Industrial Automation : Machine control systems, robotic controllers, and sensor networks
-  Telecommunications : Central office equipment, cellular infrastructure, and data center hardware
-  Consumer Electronics : High-end audio/video equipment, gaming consoles, and home automation systems
-  Medical Equipment : Diagnostic instruments, patient monitoring systems, and therapeutic devices
-  Transportation Systems : Railway signaling, aviation electronics, and marine navigation equipment

### Practical Advantages and Limitations

 Advantages: 
-  High Power Handling : 15,000W peak pulse power capability for robust transient protection
-  Fast Response Time : Sub-nanosecond response to transient events
-  Low Clamping Ratio : Provides effective voltage limiting during surge events
-  Surface Mount Package : SMC (Surface Mount Case) package enables automated assembly
-  Wide Operating Temperature : -65°C to +150°C range suitable for harsh environments

 Limitations: 
-  Package Size : SMC package requires adequate PCB space (10.3mm × 9.3mm)
-  Thermal Considerations : High power dissipation requires proper thermal management
-  Voltage Margin : Requires careful selection to ensure adequate operating margin
-  Cost Consideration : Higher cost compared to lower power TVS devices

## 2. Design Considerations

### Common Design Pitfalls and Solutions

 Pitfall 1: Insufficient Voltage Margin 
-  Problem : Selecting TVS with working voltage too close to normal operating voltage
-  Solution : Maintain 10-20% margin above maximum operating voltage

 Pitfall 2: Inadequate Current Handling 
-  Problem : Underestimating surge current requirements
-  Solution : Calculate expected surge current and verify TVS Ipp rating

 Pitfall 3: Poor Thermal Management 
-  Problem : Overheating during repeated surge events
-  Solution : Implement proper heat sinking and consider derating at high temperatures

 Pitfall 4: Incorrect Placement 
-  Problem : TVS placed too far from protected components
-  Solution : Position TVS as close as possible to protected circuit or connector

### Compatibility Issues with Other Components

 Power Supply Compatibility: 
- Ensure TVS working voltage exceeds maximum supply voltage
- Consider interaction with existing protection circuits (varistors, fuses)

 Signal Line Considerations: 
- Account for capacitance (typically 1500-2500pF) in high-speed signal lines
- Evaluate impact on signal integrity in high-frequency applications

 System Protection Coordination: 
- Coordinate with upstream/downstream protection devices
- Ensure proper sequencing with fuses and circuit breakers

### PCB Layout Recommendations

 Placement Strategy: 
- Position TVS immediately adjacent to protected connectors or circuits
- Minimize trace length between TVS and protected component (< 1 inch recommended)

 Routing Guidelines: 
- Use wide traces (≥ 50 mils) for high-current surge paths
- Maintain adequate clearance (≥ 30 mils) between high-voltage traces
-

Alternative Part Number

  • SMCJ200CA --: Same SMC (DO-214AB) package, 200V bidirectional standoff, 1500W peak pulse power; direct functional equivalent from a different series.
  • P6SMB200CA --: Bidirectional 200V TVS diode with 600W rating in SMB package; suitable if lower surge capability is acceptable and board space allows SMB footprint.
  • TPSMC200CA --: 1500W bidirectional TVS in SMC package with 200V standoff; automotive-grade alternative with comparable clamping characteristics.
  • SMCJ200CA --: Same SMC (DO-214AB) package, 200V bidirectional standoff, 1500W peak pulse power; direct functional equivalent from a different series.
  • P6SMB200CA --: 200V bidirectional TVS with 600W rating in SMB package; suitable for lower-surge applications and a different series naming.
  • SMAJ200CA --: 200V bidirectional TVS in SMA package with 400W rating; compact alternative when lower surge capability is acceptable.

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