SMUN5233DW1T1G

Overview

The SMUN5233DW1T1G is a dual NPN digital transistor manufactured by onsemi, housed in an SOT-363 surface-mount package. It integrates two NPN transistors with built-in bias resistors: a base resistor (R1) of 4.7 kΩ and an emitter resistor (R2) of 47 kΩ. The device supports a maximum collector-emitter voltage (VCEO) of 50 V and a continuous collector current (IC) of 100 mA. Key electrical characteristics include a minimum DC current gain (hFE) of 80 at 5 mA and 10 V, a saturation voltage of 250 mV at 1 mA/10 mA, and a power dissipation rating of 187 mW. It operates within a temperature range of -55°C to +150°C and holds AEC-Q101 automotive qualification.

Feature Summary

• Dual NPN configuration with integrated bias network for simplified circuit design
• Automotive-grade reliability certified under AEC-Q101 standards
• Compact SOT-363 footprint suitable for high-density PCB layouts

Applications

• Switching applications in automotive electronic control units
• General-purpose logic level translation and buffering
• Driver circuits for low-power loads in consumer electronics

Procurement Notes

Verify the specific ordering suffix against official onsemi documentation to confirm package type and tape-and-reel specifications. Ensure compliance with RoHS directives and material declarations prior to integration. Confirm that the AEC-Q101 qualification aligns with target automotive application requirements. Validate supply chain authenticity through authorized distribution channels to prevent counterfeit components.

Selection Notes

Select this component when a dual NPN solution with fixed bias ratios is required in a minimal footprint. The 4.7 kΩ input resistance suits standard logic interfaces. Compare hFE and saturation voltage parameters against load requirements. Consider thermal management for the 187 mW dissipation limit in enclosed environments. Verify pinout compatibility with existing board designs referencing SC-88 or SOT-363 footprints.

Part Context

This part belongs to the MUN5233DW1 series of pre-biased transistors from onsemi. It shares the same internal schematic as the MUN5233DW1T1G variant but differs in packaging and reel specifications. The series is designed to replace discrete resistor-transistor networks, reducing component count and assembly time in switching applications.

Replacement Considerations

Direct functional equivalents include the MUN5233DW1T1G, which shares identical electrical characteristics but may differ in packaging format. Cross-reference with other manufacturers' SOT-363 dual NPN digital transistors having matching 4.7 kΩ/47 kΩ resistor ratios and 50V ratings.