CMKT3906 TR PBFREE

Overview

The CMKT3906 TR PBFREE is a dual small signal switching transistor manufactured by Central Semiconductor Corp. It integrates two single PNP transistors within a space-saving SOT-363 surface mount package. The device features a collector-base voltage of 40 V, a collector-emitter voltage of 40 V, and an emitter-base voltage of 5.0 V. It supports a continuous collector current of 200 mA with a power dissipation rating of 350 mW. The transition frequency reaches 250 MHz at 10 mA, while the DC current gain ranges from 100 to 300 at 10 mA.

Feature Summary

• Integrates two independent PNP transistors into a single compact SOT-363 package for efficient board space utilization
• Engineered specifically for general-purpose small signal amplifier and high-speed switching applications
• Provides robust thermal performance with a junction temperature range spanning from -65°C to +150°C

Applications

• General-purpose small signal amplification circuits
• High-speed digital logic switching interfaces
• Portable consumer electronics requiring compact component footprints

Procurement Notes

Verify that the ordering suffix explicitly includes PBFREE to ensure compliance with lead-free manufacturing standards. Confirm the specific tape and reel quantity requirements match your automated assembly line specifications. Cross-reference the marking code K06 against incoming inventory to validate authenticity and prevent counterfeit substitution during the receiving inspection process.

Selection Notes

Select this component when a dual PNP configuration is required in a minimal footprint without utilizing complementary pairs. Ensure the circuit design operates within the 40 V collector-emitter breakdown limits. Verify that the total power dissipation does not exceed 350 mW under worst-case thermal conditions to maintain reliable long-term operation.

Part Context

This part belongs to the CMKT series of dual silicon transistors produced by Central Semiconductor Corp. It serves as the PNP counterpart to the CMKT3904 NPN/NPN variant. Both share identical physical dimensions and pinout configurations, facilitating flexible design choices for differential or push-pull topologies.

Replacement Considerations

Direct functional equivalents include the MMBT3906W. Verify pin compatibility and electrical parameter margins before substituting components in existing designs.