FMKS-2102

Diode Arrays Overview

The FMKS-2102 is a fast recovery diode with built-in temperature detection, manufactured by Sanken Electric USA Inc. It integrates a fast recovery diode (FRD) and a Schottky barrier diode (SBD) on the same die to achieve highly accurate thermal monitoring. The FRD supports a peak repetitive reverse voltage of 200 V and an average forward current of 10 A. Key electrical parameters include a maximum forward voltage drop of 0.98 V at 10 A, a reverse leakage current of 100 µA at VRM, and a reverse recovery time of 50 ns. The device operates within a junction temperature range of -40 °C to 150 °C.

Diode Arrays Feature Summary

• Integrates a fast recovery diode and a Schottky barrier diode for temperature detection on a single die
• Provides highly accurate real-time thermal monitoring of the primary rectifier diode
• Eliminates the need for external thermistors, reducing component count and power supply size

Diode Arrays Applications

• Secondary rectifier diodes in offline flyback converters
• Audio equipment requiring thermal protection circuits
• White goods utilizing peak power limiting circuits
• General-purpose power supplies

Diode Arrays Procurement Notes

Verify that the specific part number matches the required current rating and package type before ordering. Confirm compliance with RoHS directives and lead-free requirements as specified in the datasheet. Ensure the application does not require aerospace or nuclear-grade reliability without prior written consent from the manufacturer. Check for any updated revision notes regarding derating curves or absolute maximum ratings.

Diode Arrays Selection Notes

Select this component when precise thermal management of the main rectifier is critical without adding external sensing elements. The integrated SBD allows direct connection to shunt regulator reference pins for immediate overload response. Consider the 200 V reverse voltage rating and 10 A current capacity against the circuit's peak operating conditions. Evaluate the TO220F-3L package suitability for the available heatsinking space.

Diode Arrays Part Context

The FMKS series includes variants with different current ratings: FMKS-2052 (5 A), FMKS-2102 (10 A), and FMKS-2152 (15 A). All share the same 200 V reverse voltage capability and integrated temperature detection architecture. The series is designed to replace traditional discrete diode and thermistor combinations in secondary side rectification applications.

Diode Arrays Replacement Considerations

Public confirmed substitute part numbers are not provided in the official documentation.