UMH9NFHATN

Overview

The UMH9NFHATN is a dual NPN digital transistor manufactured by ROHM Semiconductor, housed in a SOT-363 (UMT6) surface-mount package. It integrates two independent NPN transistors with built-in bias resistors: R1 is typically 10 kOhms and R2 is typically 47 kOhms, yielding a resistor ratio of 4.7. The device supports a collector-emitter voltage (VCEO) of 50V and a continuous collector current of 100mA. Key electrical parameters include a minimum DC current gain (hFE) of 68 at 5mA/5V, a transition frequency of 250MHz, and a maximum power dissipation of 150mW. It operates up to +150°C and holds AEC-Q101 automotive qualification.

Feature Summary

• Integrates dual NPN transistors with pre-biased internal resistors to simplify circuit design and reduce component count.
• Features low saturation voltage for efficient switching performance in digital logic applications.
• Automotive-grade reliability certified under AEC-Q101 standards for harsh environment operation.

Applications

• Digital signal level shifting and logic interface circuits
• Switching control for small-signal loads in portable devices
• Buffer and driver stages in embedded systems

Procurement Notes

Verify the specific suffix 'TN' against the official ROHM datasheet to confirm the exact resistor values and packaging configuration. Ensure the ordering part number matches the required reel or cut-tape quantity. Cross-reference the manufacturer's latest revision history to confirm RoHS compliance status and any potential obsolescence notices before finalizing procurement.

Selection Notes

Select this component when a dual NPN configuration with fixed 10k/47k bias resistors is required in a compact SOT-363 footprint. Compare the 250MHz transition frequency and 100mA current rating against application demands. Consider the AEC-Q101 qualification if the target environment requires automotive-grade reliability standards over standard industrial ratings.

Part Context

This part belongs to the ROHM UMH9N series of digital transistors. It shares the same SOT-363 package and general form factor with variants like UMH9NTN and UMH10NFHATN, but differs in internal resistor values and specific hFE characteristics. The UMH9NFHATN specifically denotes the dual NPN configuration with the 10k/47k resistor network.

Replacement Considerations

Direct pin-compatible substitutes within the same family include UMH9NTN and UMH10NFHATN. Verify that the alternative part's internal resistor ratios and hFE specifications match the original circuit requirements before substitution.