DTA143ZU3T106

Overview

The DTA143ZU3T106 is a single PNP digital transistor manufactured by ROHM Semiconductor, housed in an SOT-323 (UMT3) surface-mount package. It integrates bias resistors with a typical input resistance of 4.7 kOhms and a resistor ratio of 10. The device supports a collector continuous current of -100 mA and a supply voltage of -50 V. Key electrical parameters include a maximum operating frequency of 250 MHz, a DC current gain (hFE) minimum of 80 at -10 mA/-5 V, and power dissipation of 200 mW. It operates within a temperature range up to +150 C.

Feature Summary

• Integrates built-in bias resistors to simplify circuit design by eliminating external components.
• Provides high-speed switching capabilities suitable for digital logic applications.
• Offers compact surface-mount packaging for space-constrained designs.

Applications

• General-purpose digital switching circuits
• Interface circuits between microprocessors and peripheral devices
• Logic level translation and buffer stages

Procurement Notes

Verify the specific ordering suffix T106 to confirm reel packaging and quantity specifications. Ensure compatibility with SOT-323 footprint requirements during procurement planning. Cross-reference manufacturer datasheets for updated RoHS compliance status and lead time estimates prior to finalizing orders.

Selection Notes

Select this component when a PNP configuration with integrated biasing is required for compact digital switching. Verify that the -50 V supply voltage and -100 mA current limits meet circuit demands. Consider the 250 MHz frequency rating for high-speed signal processing needs compared to slower alternatives.

Part Context

This part belongs to the DTA143 series of pre-biased transistors from ROHM Semiconductor. It shares pinout and functional characteristics with variants like DTA143ZUA and DTA143ZU3HZG, differing primarily in packaging or automotive qualification status. The UMT3 package designation indicates a standard small-outline transistor form factor.

Replacement Considerations

DTA143ZU3 and DTA143ZU3HZG are confirmed substitutes with identical pinouts and packages. Verify if automotive qualification (AEC-Q101) is required, as DTA143ZU3HZG holds this certification while the base model may not.

FAQ

What is the typical value of the built-in base resistor?

The typical input resistance (R1) is 4.7 kOhms.

Does this component support automotive applications?

The standard DTA143ZU3T106 is not explicitly listed as AEC-Q101 qualified in the provided data; the DTA143ZU3HZG variant is specified for automotive use.

What is the maximum operating frequency?

The maximum operating frequency is 250 MHz.