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1.5KE100CA from DIODES

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1.5KE100CA

Manufacturer: DIODES, MCC

1500 Watt peak power transient voltage suppressor. Reverse stand-off voltage VRWM = 85.50 V. Test current IT = 1 mA.

Partnumber Manufacturer Quantity Availability
1.5KE100CA,15KE100CA DIODES, MCC 3300 In Stock

Description and Introduction

1500 Watt peak power transient voltage suppressor. Reverse stand-off voltage VRWM = 85.50 V. Test current IT = 1 mA. The part 15KE100CA is a Transient Voltage Suppressor (TVS) diode manufactured by DIODES Incorporated. It is designed to protect sensitive electronics from voltage transients and surges. Below are the key specifications:

- **Voltage - Reverse Standoff (Typ):** 85.5V
- **Voltage - Breakdown (Min):** 95V
- **Voltage - Clamping (Max) @ Ipp:** 137V
- **Current - Peak Pulse (10/1000µs):** 78.1A
- **Power - Peak Pulse:** 1500W
- **Power Line Protection:** Yes
- **Unidirectional:** Yes
- **Operating Temperature:** -55°C to +175°C
- **Package / Case:** DO-201AD (DO-27)
- **Mounting Type:** Through Hole
- **Lead Free Status:** Lead Free
- **RoHS Status:** RoHS Compliant

This TVS diode is commonly used in applications such as power supplies, communication systems, and automotive electronics to protect against voltage spikes and transients.

Application Scenarios & Design Considerations

1500 Watt peak power transient voltage suppressor. Reverse stand-off voltage VRWM = 85.50 V. Test current IT = 1 mA.# Technical Documentation: 15KE100CA TVS Diode

*Manufacturer: MCC (Micro Commercial Components)*

## 1. Application Scenarios

### Typical Use Cases
The 15KE100CA is a bidirectional Transient Voltage Suppression (TVS) diode designed for robust overvoltage protection in electronic circuits. Typical applications include:

 Primary Protection Applications: 
-  ESD Protection : Safeguards sensitive ICs from electrostatic discharge events up to 30kV
-  Lightning Surge Protection : Provides secondary protection against induced lightning transients in communication lines
-  Inductive Load Switching : Suppresses voltage spikes from relay coils, motor windings, and solenoid valves
-  Power Supply Protection : Guards against voltage transients in DC power lines and switching power supplies

 Signal Line Protection: 
- Communication interfaces (RS-232, RS-485, Ethernet)
- Data buses in automotive and industrial systems
- I/O port protection in microcontroller-based systems

### Industry Applications

 Automotive Electronics: 
- ECU protection against load-dump transients
- CAN bus line protection
- Sensor interface circuits
- Infotainment system inputs

 Industrial Control Systems: 
- PLC I/O module protection
- Motor drive circuits
- Process control instrumentation
- Factory automation equipment

 Telecommunications: 
- DSL modem protection
- Telephone line interfaces
- Network equipment ports
- Wireless base station components

 Consumer Electronics: 
- USB port protection
- HDMI interface safeguarding
- Power adapter outputs
- Charging circuits

### Practical Advantages and Limitations

 Advantages: 
-  Fast Response Time : Reacts to transients in picosecond range (typically <1.0ns)
-  High Surge Capability : Withstands 10/1000μs surge pulses up to 1500W peak pulse power
-  Bidirectional Operation : Protects against both positive and negative voltage transients
-  Low Clamping Ratio : Provides effective voltage limiting with Vc = 162V maximum at 100A
-  Compact Package : DO-201AA package offers good power handling in reasonable footprint

 Limitations: 
-  Limited Continuous Power : Not suitable for sustained overvoltage conditions
-  Capacitance Considerations : Typical 150pF junction capacitance may affect high-speed signals
-  Voltage Derating : Requires careful consideration of operating temperature effects
-  Standby Current : Minimal leakage current (5μA maximum) but must be considered in low-power designs

## 2. Design Considerations

### Common Design Pitfalls and Solutions

 Pitfall 1: Incorrect Voltage Rating Selection 
-  Problem : Selecting VRWM too close to normal operating voltage
-  Solution : Ensure VRWM (85.0V) exceeds maximum normal operating voltage by 10-20%

 Pitfall 2: Poor Thermal Management 
-  Problem : Inadequate heat dissipation during repeated transient events
-  Solution : Provide sufficient copper area on PCB and consider thermal vias for heat transfer

 Pitfall 3: Excessive Lead Length 
-  Problem : Long PCB traces increase inductance, reducing protection effectiveness
-  Solution : Place TVS diode as close as possible to protected port with minimal trace length

 Pitfall 4: Inadequate Current Handling 
-  Problem : Underestimating potential surge current magnitudes
-  Solution : Analyze worst-case scenarios and ensure IPP (100A) rating exceeds expected transients

### Compatibility Issues with Other Components

 With Microcontrollers and ICs: 
- Ensure clamping voltage (162V max) doesn't exceed protected device absolute maximum ratings
- Consider adding series resistance for current limiting during sustained overvoltage

 With Other Protection Devices: 
- Coordinate with primary protection devices (gas discharge tubes, MOVs) for multi-stage protection
- Ensure proper sequencing of

Alternative Part Number

  • P6KE100CA --: Same 100V bidirectional TVS diode in a smaller DO-15 package with lower peak power, suitable for lower-surge applications.
  • SMBJ100CA --: 100V bidirectional TVS in SMB surface-mount package, good drop-in for space-constrained designs with moderate surge capability.
  • SMCJ100CA --: 100V bidirectional TVS in SMC package offering 1500W peak pulse power, matching the original surge rating in a surface-mount form factor.
  • P6KE100CA --: Same 100V bidirectional TVS diode family with lower peak power rating, widely available and pin-compatible for lower-surge applications.
  • SMCJ100CA --: Bidirectional 100V TVS in SMC package offering comparable clamping performance and a different series naming for easy distinction.
  • 5KP100CA --: Higher-power 100V bidirectional TVS alternative with similar electrical characteristics, suitable when extra surge capability is acceptable.

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