IMX5T108

Overview

The IMX5T108 is a complex bipolar transistor array manufactured by Rohm Semiconductor, featuring two integrated NPN transistors within a compact SMT6 (SOT-457/SC-74) surface-mount package. This component is designed for high-frequency applications, offering a collector-emitter breakdown voltage of 11V and a continuous collector current of 50mA per transistor. The device exhibits a DC current gain (hFE) ranging from 56 to 120 at specified test conditions. With a maximum power dissipation capability suitable for small signal processing, it integrates dual NPN structures to simplify circuit design while maintaining low profile dimensions of 2.8x2.9mm.

Feature Summary

• Integrates two NPN bipolar junction transistors into a single ultra-small surface-mount package for space-constrained designs.
• Optimized for high-frequency operations with defined transition frequency characteristics.
• Provides standardized current gain ranges to ensure consistent switching and amplification performance across production batches.

Applications

• High-frequency signal processing circuits requiring compact dual-transistor solutions.
• General-purpose switching applications in consumer electronics where board space is limited.
• Analog signal conditioning stages utilizing matched transistor pairs.

Procurement Notes

Verify the supply status before integration, as this part may be designated as final sale or not recommended for new designs. Confirm that the SMT6 package footprint matches your PCB layout constraints. Ensure compliance with RoHS directives if required by your manufacturing standards. Check for any specific handling instructions related to moisture sensitivity level 1 during assembly processes.

Selection Notes

Select the IMX5T108 when a dual NPN configuration is required in an SC-74 compatible footprint. Compare its 11V Vceo rating against circuit voltage requirements to prevent breakdown. Evaluate the 50mA Ic limit against load currents. Consider equivalent single parts like the 2SC3838K if discrete components are preferred over integrated arrays for replacement or redesign purposes.

Part Context

This component belongs to Rohm's IMX series of complex transistors, which focus on miniaturization and high-frequency performance. It serves as a dual-NPN alternative to discrete transistor pairs, reducing component count and parasitic effects in high-speed digital or analog circuits. The series typically targets portable devices and communication equipment requiring reliable small-signal handling.

Replacement Considerations

The 2SC3838K is listed as an equivalent single-part alternative. Verify pinout compatibility and electrical parameters such as Vceo and hFE ranges when substituting. Ensure the replacement meets the same thermal and mechanical specifications for the target application environment.