KSB601YTU

Single Bipolar Transistors Overview

The KSB601YTU is a PNP epitaxial silicon Darlington transistor manufactured by onsemi, formerly Fairchild Semiconductor. It features a collector-emitter voltage of -100 V and a continuous collector current rating of -5 A. The device operates with a junction temperature up to 150 °C and dissipates up to 30 W at case temperatures of 25 °C. Packaged in a TO-220 housing, it offers high DC current gain ranging from 2000 to 15000 depending on the classification code.

Single Bipolar Transistors Feature Summary

• Darlington configuration providing exceptionally high DC current gain for low drive current requirements
• Designed as a complementary device to the KSD560 NPN transistor
• Capable of handling medium-speed switching operations and industrial applications
• Suitable for use in low-frequency power amplifier circuits

Single Bipolar Transistors Applications

• Low frequency power amplification stages
• Medium speed switching circuits
• Industrial control systems requiring high gain
• Complementary driver stages paired with KSD560

Single Bipolar Transistors Procurement Notes

Verify the specific hFE bin classification (R, O, or Y) required for your circuit design, as gain varies significantly between bins. Confirm that the TO-220 package dimensions match your thermal management and PCB layout constraints. Ensure the sourcing channel provides documentation confirming the component status, as this part may be classified as obsolete or not recommended for new designs.

Single Bipolar Transistors Selection Notes

Select this component when high current gain is necessary to minimize base drive current in power amplifier or switching applications. The -100 V collector-emitter voltage rating supports moderate voltage levels common in industrial equipment. Consider the thermal dissipation capabilities relative to your ambient operating conditions, as the device requires adequate heat sinking to maintain performance within safe operating limits.

Single Bipolar Transistors Part Context

This component belongs to the KSB series of PNP Darlington transistors produced by onsemi. It serves as the PNP counterpart to the KSD560 NPN transistor, facilitating push-pull output stage configurations. The TO-220 package allows for direct mounting to heatsinks, supporting the higher power dissipation ratings typical of Darlington structures compared to standard bipolar transistors.

Single Bipolar Transistors Replacement Considerations

The KSD560 is documented as the complementary pair for this transistor. Verify pinout compatibility and electrical parameters against alternative PNP Darlington devices if direct substitution is required due to availability constraints.

Single Bipolar Transistors FAQ

What are the available hFE classifications for the KSB601?

The datasheet specifies three DC current gain classifications: R (2000 to 5000), O (3000 to 7000), and Y (5000 to 15000).

Is the KSB601 authorized for life support devices?

No, Fairchild Semiconductor explicitly states that products are not authorized for use as critical components in life support devices without express written approval.

What is the maximum collector current pulse rating?

The absolute maximum rating for collector current pulse is -8 A, provided the pulse width is less than or equal to 10 ms and the duty cycle is less than or equal to 50%.