CMPSH-3SE TR PBFREE

Overview

The CMPSH-3SE TR PBFREE is a dual-in-series silicon Schottky diode from the enhanced specification CMPSH-3E series, housed in an SOT-23 surface-mount package. It features a peak repetitive reverse voltage of 40 V and a continuous forward current rating of 200 mA. The device supports a forward surge current of 750 mA with a power dissipation capacity of 350 mW. Electrical characteristics include a maximum forward voltage of 1.0 V at 200 mA and a typical junction capacitance of 7.0 pF. Operating temperatures range from -65°C to +150°C.

Feature Summary

• Dual Schottky diodes configured in a series arrangement within a single SOT-23 package
• Enhanced specifications providing improved forward current and breakdown voltage ratings compared to standard series
• Low forward voltage drop characteristic for efficient rectification
• High thermal stability supporting operation up to 150°C junction temperature

Applications

• DC-DC converter circuits requiring compact dual-diode solutions
• Power supply input protection stages
• General-purpose rectification in space-constrained surface-mount designs

Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm plating requirements. The PBFREE designation indicates lead-free compliance, while alternative suffixes may denote tin/lead options. Confirm package type and marking codes match design schematics. Ensure thermal management aligns with the specified power dissipation limits during integration.

Selection Notes

Select this component when a dual-series Schottky configuration is required in an SOT-23 footprint. The enhanced specifications offer higher current handling than previous iterations. Evaluate the 40V reverse voltage rating against circuit peak inverse voltages. Consider the low junction capacitance for high-frequency applications where switching speed is critical.

Part Context

This part belongs to the Central Semiconductor CMPSH-3E series, which represents an upgrade over the legacy CMPSH-3 line. The series focuses on improving key parameters like forward current and breakdown voltage while maintaining the compact SOT-23 form factor. The CMPSH-3SE specifically denotes the dual-in-series topology variant within this enhanced family.

Replacement Considerations

Direct substitutes include other dual-in-series Schottky diodes in SOT-23 packages with matching 40V and 200mA ratings. Verify pinout compatibility, as the series configuration differs from common-anode or common-cathode variants. Check if generic replacements meet the enhanced electrical specifications rather than standard baseline values.