CMKT5078 TR PBFREE

Overview

The CMKT5078 TR PBFREE is a dual silicon transistor array manufactured by Central Semiconductor Corp, housed in an SOT-363 (ULTRAmini™) surface-mount package. It integrates one NPN and one PNP complementary transistor within a single space-saving component. The device supports a maximum continuous collector current of 50 mA and a power dissipation of 350 mW at 25°C ambient temperature. Electrical specifications include a collector-base voltage rating of 35 V for the NPN side and 50 V for the PNP side, with corresponding collector-emitter voltages of 30 V and 50 V. The unit operates across a junction temperature range of -65°C to +150°C.

Feature Summary

• Integrates one NPN and one PNP complementary transistor into a single ULTRAmini™ SOT-363 package for space-efficient designs.
• Engineered for applications requiring high DC current gain and low noise performance.
• Provides independent control of two distinct transistor polarities within a compact surface-mount footprint.

Applications

• Low-noise amplifier circuits
• High-gain signal processing stages
• Complementary switching configurations

Procurement Notes

Verify that the ordering suffix matches the required plating specification. The PBFREE designation indicates lead-free plating compliance. Confirm the tape-and-reel packaging format aligns with automated assembly requirements. Ensure the manufacturer part number corresponds exactly to the CMKT5078 series to guarantee correct pinout and electrical characteristics.

Selection Notes

Select this component when a design requires matched complementary NPN/PNP pairs in a minimal footprint. The SOT-363 package limits thermal dissipation to 350 mW, necessitating adequate PCB copper area for heat spreading. Verify that the required hFE ranges and noise figures meet the specific circuit constraints before finalizing the selection.

Part Context

This component belongs to the CMKT50xx series of surface mount dual silicon transistors from Central Semiconductor Corp. The series includes variations such as the CMKT5087 (two PNPs) and CMKT5088 (two NPNs), all sharing the same physical package dimensions and marking code conventions while differing in internal transistor polarity combinations.

Replacement Considerations

Direct substitutes must match the SOT-363 package and contain one NPN and one PNP transistor. Verify that replacement parts maintain equivalent voltage ratings (30V/50V CEO) and current capabilities (50mA Ic). Check for compatible hFE bins and noise figure specifications to ensure circuit performance parity.