FMG9AT148

Overview

The FMG9AT148 is a dual NPN digital transistor array manufactured by Rohm Semiconductor, housed in an SMT5 (SOT-753) surface-mount package. It integrates two NPN transistors with built-in bias resistors, specifically R1 and R2 both rated at 10 kOhms. The device supports a maximum collector current of 100 mA and a collector-emitter voltage of 50 V. Key electrical parameters include a minimum DC current gain (hFE) of 30 at 5 mA and 5 V, a transition frequency of 250 MHz, and a maximum power dissipation of 300 mW. The saturation voltage is specified at 300 mV under standard test conditions.

Feature Summary

• Integrates two NPN transistors with built-in thin-film bias resistors for simplified circuit design.
• Emitter-common configuration allows direct connection to logic outputs without external input resistors.
• Thin-film resistor isolation enables negative input biasing and eliminates parasitic effects.

Applications

• Inverter circuits
• Interface circuits
• Driver circuits

Procurement Notes

Verify the specific suffix T148 corresponds to the SMT5 tape-and-reel packaging format required for automated assembly. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the component meets environmental regulations applicable to the target market. Cross-reference the manufacturer part number with distributor catalogs to confirm availability and authenticity.

Selection Notes

Select this component when a dual NPN digital transistor solution is required to reduce board space and simplify biasing networks. The 10 kOhm internal resistance values are suitable for standard logic interface applications. Consider the 250 MHz transition frequency for high-speed switching requirements. Verify that the 50 V voltage rating aligns with the system's operational limits.

Part Context

This component belongs to the FMG9A series of complex digital transistors from Rohm Semiconductor. These devices are designed as replacements for discrete resistor-transistor combinations, offering a compact footprint in the SMT5 package. The series is engineered for high reliability and ease of use in consumer electronics and industrial control systems.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Designers should consult official manufacturer cross-reference guides or authorized distributor databases for equivalent components with matching electrical characteristics and pin configurations.