KSR1102MTF

Overview

The KSR1102MTF is a single NPN epitaxial silicon digital transistor manufactured by Fairchild Semiconductor. It integrates bias resistors within the SOT-23-3 surface-mount package to simplify circuit design. The device features a typical input resistance of 10 kOhms and a minimum DC collector-base gain (hFE) of 68. It supports a continuous collector current of 100 mA and withstands a maximum collector-emitter voltage of 50 V. Operating temperatures range from -55°C to +150°C, with a power dissipation rating of 0.2 W.

Feature Summary

• Integrates built-in bias resistors to reduce external component count
• Designed for high-speed switching applications in compact form factors
• Utilizes NPN epitaxial silicon technology for reliable performance

Applications

• Interface circuits between logic families
• Driver circuits for low-power loads
• Inverter configurations in digital systems

Procurement Notes

Verify manufacturing origin as the product line involves transitions between Fairchild Semiconductor and onsemi. Confirm the specific suffix matches required packaging or marking specifications. Check current availability status as older variants may be discontinued or subject to last-time buy constraints. Ensure compliance with RoHS directives if required for the target assembly process.

Selection Notes

Select this component when a single NPN digital transistor with a 10 kOhm base resistor is required. Compare hFE minimum values against load requirements to ensure adequate drive capability. Verify that the SOT-23-3 package dimensions fit the PCB layout constraints. Consider thermal dissipation limits if operating near maximum current ratings.

Part Context

This part belongs to the KSR1102 series of bias resistor built-in transistors. It serves as a complement to other variants in the family, offering standardized integration for switching tasks. The MTF suffix typically denotes tape-and-reel packaging for automated assembly processes.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Evaluate generic NPN digital transistors with similar 10 kOhm bias resistance and 50V VCEO ratings only after verifying pinout compatibility and electrical parameter equivalence.