UMF25NTR

Overview

The UMF25NTR is a pre-biased bipolar transistor (BJT) manufactured by ROHM Semiconductor. It features an NPN and PNP configuration housed in a SOT-363-6 surface-mount package. The device integrates bias resistors, with typical input resistance values of 2.2 kOhms and a typical resistor ratio of 21. Key electrical parameters include a maximum operating frequency of 250 MHz, a collector-emitter voltage (VCEO) of 300 mV, and a DC collector/base gain (hFE min) of 80 at 10 mA/5 V for the NPN section. Power dissipation is rated at 150 mW, with a maximum operating temperature of +150°C.

Feature Summary

• Integrates independent NPN and PNP transistor elements within a single compact package to reduce mounting area and cost.
• Built-in bias resistors simplify circuit design by eliminating external components typically required for digital transistors.
• High-speed operation capability supported by a maximum operating frequency of up to 250 MHz.
• Robust thermal performance allowing operation at temperatures up to +150°C.

Applications

• Inverter circuits
• Interface applications
• Driver circuits

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status as indicated in official documentation. Check current manufacturing status, as some sources indicate this specific part number may be obsolete or discontinued; ensure availability aligns with production requirements before finalizing procurement plans.

Selection Notes

Select the UMF25NTR when space-constrained designs require dual polarity switching with integrated biasing. Its SOT-363-6 footprint suits high-density PCB layouts. Consider the 300 mV VCEO rating for low-voltage signal processing tasks. Ensure the 150 mW power dissipation limit fits the thermal management strategy of the target application environment.

Part Context

This component belongs to the UMF series of complex bi-polar digital transistors from ROHM Semiconductor. It serves as a dual-element solution combining NPN and PNP functions, often replacing separate discrete transistors and resistors. The UMT6 package code corresponds to the SOT-363 form factor, designed for automated surface-mount assembly processes.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source data. For equivalent functionality, consider checking the DTA123J and DTC123J equivalents mentioned in related product details, though these are single-component references rather than direct dual-package substitutes.