UMF22NTR

Overview

The UMF22NTR is a dual digital transistor from ROHM Semiconductor, integrating an NPN and a PNP transistor within a single SOT-363 (UMT6) package. It features typical input resistors of 22 kOhms with a ratio of 2.1. Key electrical parameters include a maximum operating frequency of 140 MHz for the NPN section and 250 MHz for the PNP section. The device supports a collector continuous current of -150 mA for the PNP and 100 mA for the NPN, with a power dissipation of 150 mW. Maximum ratings encompass a VCEO of 300 mV and a VEBO of -6 V for the PNP and 2.5 V for the NPN.

Feature Summary

• Integrates complementary NPN and PNP transistors into a compact surface-mount package to reduce component count.
• Includes built-in biasing resistors to simplify digital circuit design and improve switching performance.
• Offers high-frequency operation suitable for signal processing and switching applications.

Applications

• General-purpose digital switching circuits
• Signal amplification stages requiring complementary polarity
• Interface circuits between logic gates and loads

Procurement Notes

Verify the specific suffix 'NTR' corresponds to the tape-and-reel packaging format containing 3000 units per reel. Confirm RoHS compliance status through the official datasheet or manufacturer documentation prior to integration. Ensure the ordering part number matches the exact electrical specifications required for the design.

Selection Notes

Select this component when a complementary pair of digital transistors is needed in a minimal footprint. The 22 kOhm input resistance provides a standard biasing level for general logic interfaces. Consider the 150 mW power dissipation limit and the specific voltage ratings for both NPN and PNP sections during thermal and electrical design validation.

Part Context

This component belongs to the UMF28N series family of complex bipolar digital transistors manufactured by ROHM Semiconductor. It shares the same SOT-363 package form factor as other devices in the lineup but differs in internal resistor values and specific transistor characteristics. The series is designed for space-constrained consumer and industrial electronics.

Replacement Considerations

Direct functional substitutes may include other dual digital transistors in SOT-363 packages with similar NPN/PNP configurations and comparable input resistance values. Verify pinout compatibility and electrical limits before substitution.