DTA114GKAT146

Overview

DTA114GKAT146 is a single PNP pre-biased digital transistor manufactured by Rohm Semiconductor. It integrates a bipolar junction transistor with a single internal base resistor (R1) of 10 kΩ within an SMT3 surface-mount package, equivalent to TO-236 or SC-59 form factors. 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 30 at 5 mA and 5 V, a transition frequency of 250 MHz, and a maximum power dissipation of 200 mW. The component operates within a temperature range of -55°C to +150°C.

Feature Summary

• Integrates a single PNP transistor with a built-in 10 kΩ base input resistor to simplify circuit design.
• Provides high-speed switching capability with a 250 MHz transition frequency for efficient signal processing.
• Features a compact SMT3 surface-mount package suitable for high-density PCB layouts.

Applications

• General-purpose digital logic interface circuits
• Microcontroller I/O port buffering and level shifting
• Low-power switching applications in portable electronics

Procurement Notes

Verify the specific ordering suffix 'T146' against the manufacturer's official documentation to confirm reel packaging specifications and tape-and-reel dimensions. Ensure that the selected variant matches the required RoHS compliance status and moisture sensitivity level for the intended assembly process. Cross-reference the part number with authorized distributors to confirm current availability and lead times prior to procurement.

Selection Notes

Select this component when a single-resistor bias configuration is sufficient for the application. The DTA114 series offers a 10 kΩ base resistor, which differs from other variants like the DTA114EKA that include both R1 and R2 resistors. Verify that the 100 mA current rating and 50 V voltage limit meet the load requirements. Consider the SMT3 package dimensions for board space constraints compared to larger through-hole alternatives.

Part Context

The DTA114GKAT146 belongs to Rohm's standard DTA114 family of pre-biased transistors. This series is designed to replace discrete resistor-transistor networks, reducing component count and assembly time. The 'GKA' designation typically indicates the specific resistor value and package type within the broader product line, while 'T146' denotes the taping quantity and packaging format.

Replacement Considerations

DDTA114GCA-7-F by Diodes Incorporated is listed as a substitute with similar pinout and package specifications.