CMPP6028R BK

Overview

The CMPP6028R BK is a surface-mount silicon programmable unijunction transistor manufactured by Central Semiconductor Corp. It utilizes an SOT-23 package and supports adjustable valley current, peak current, and intrinsic standoff ratio. Maximum ratings include a gate-cathode forward voltage of 40 V, a DC forward anode current of 150 mA, and power dissipation of 167 mW at 25°C. The device operates within a junction temperature range of -50°C to +100°C and features a storage temperature range from -55°C to +150°C.

Feature Summary

• Surface-mount silicon construction in an SOT-23 package
• Adjustable electrical characteristics including valley current, peak current, and intrinsic standoff ratio
• High peak repetitive forward current capability with specified duty cycles

Applications

• Oscillator circuits requiring programmable timing characteristics
• Timing pulse generation applications
• Triggering circuits for thyristors or triacs

Procurement Notes

Verify the specific ordering suffix required for your application. The 'BK' designation indicates bulk packaging. Confirm availability status as this component has been transitioned to End of Life (EOL) status by the manufacturer. Last purchase orders may be subject to specific timeframes, and replacements are not currently available through standard channels.

Selection Notes

Select this component when a surface-mount programmable UJT with an SOT-23 footprint is required. Ensure the design accommodates the 167 mW power dissipation limit and the 40 V maximum voltage ratings. Verify that the adjustable parameters meet the specific circuit requirements for peak and valley currents.

Part Context

This part belongs to the CMPP6027R/CMPP6028R series of surface-mount silicon programmable unijunction transistors. These devices are designed for applications requiring adjustable characteristics such as valley current, peak current, and intrinsic standoff ratio. The series offers a compact alternative to through-hole programmable UJTs.

Replacement Considerations

No direct replacement part numbers are available from Central Semiconductor Corp. for this model. The manufacturer notes that these parts are classified as End of Life (EOL). Customers are advised to contact [email protected] for assistance in locating alternate sources.