UMH37NTN

Overview

The UMH37NTN is a dual NPN digital transistor manufactured by ROHM Semiconductor, housed in a surface-mount SOT-363 (UMT6) package. It integrates two pre-biased transistors with typical input resistors of 10 kOhms each. Key electrical parameters include a collector-emitter voltage (VCEO) of 20 V, a continuous collector current of 400 mA, and a power dissipation rating of 150 mW. The device features a minimum DC current gain (hFE) of 820 at 10 mA and 5 V, with a maximum operating frequency of 35 MHz. It operates within a temperature range up to +150°C.

Feature Summary

• Integrates two NPN transistors with built-in biasing resistors for simplified circuit design.
• Provides high current handling capability suitable for load switching applications.
• Utilizes a compact SOT-363 surface-mount package to minimize board space.

Applications

• Noise suppression circuits in consumer electronics
• Driver circuits for small loads requiring pre-biased switching
• General-purpose logic interface buffering

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to ensure correct packaging configuration. Confirm RoHS compliance status through authorized channels prior to procurement. Ensure that the selected component matches the required voltage and current ratings for the target application environment.

Selection Notes

Select this component when a dual NPN configuration with integrated biasing is required for low-voltage, moderate-current switching tasks. The 20 V rating limits its use to low-side switching or specific low-voltage logic interfaces. Compare the 400 mA current capacity against load requirements to ensure adequate margin under thermal constraints.

Part Context

This part belongs to the UMH series of pre-biased transistors from ROHM Semiconductor. These devices are designed to replace discrete resistor-transistor networks, reducing component count and assembly time. The UMT6 package is standard for dual transistor arrays in portable and compact electronic designs.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify pinout compatibility and electrical specifications before considering any alternative components from other manufacturers.