DTA143EKAT146

$0.20

Description：TRANS PREBIAS PNP 50V 0.1A SMT3
Series：-

SKU:a5d97e101287 Category: Single, Pre-Biased Bipolar Transistors Brand: Rohm Semiconductor

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Product introduction

Product Detailed Parameters

Description：TRANS PREBIAS PNP 50V 0.1A SMT3
Series：-
Mfr：Rohm Semiconductor
Package：Tape & Reel (TR),Cut Tape (CT)
Resistors Included：R1 and R2
Transistor Type：PNP - Pre-Biased
Current - Collector (Ic) (Max)：100 mA
Voltage - Collector Emitter Breakdown (Max)：50 V
Resistor - Base (R1)：4.7 kOhms
Resistor - Emitter Base (R2)：4.7 kOhms
DC Current Gain (hFE) (Min) @ Ic, Vce：30 @ 10mA, 5V
Vce Saturation (Max) @ Ib, Ic：300mV @ 500µA, 10mA
Current - Collector Cutoff (Max)：500nA
Frequency - Transition：250 MHz
Power - Max：200 mW
Grade：-
Qualification：-
Mounting Type：Surface Mount
Package / Case：TO-236-3, SC-59, SOT-23-3
Supplier Device Package：SMT3

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DTA143EKAT146

Overview

The DTA143EKAT146 is a single PNP digital transistor manufactured by ROHM Semiconductor, featuring integrated biasing resistors within a compact SOT-323 (SMT3) surface-mount package. It operates with a maximum collector-emitter voltage of -50 V and supports a continuous collector current of -100 mA. The device incorporates typical input resistance (R1) and emitter-base resistance (R2) values of 4.7 kOhms each, maintaining a resistor ratio of 1. Key electrical characteristics include a minimum DC current gain (hFE) of 30 at -10 mA and -5 V, a transition frequency of 250 MHz, and a power dissipation rating of 200 mW. The component is qualified for automotive applications under AEC-Q101 standards.

Feature Summary

Integrates base input and emitter-base resistors to eliminate external biasing components
AEC-Q101 qualified for automotive reliability requirements
Provides simplified inverter circuit configuration through built-in pre-biasing

Applications

Automotive digital signal interface circuits
Microcontroller I/O port driving and level shifting
Low-power switching and relay control modules

Procurement Notes

Verify the specific suffix AT146 against the official ROHM datasheet to confirm the reel packaging quantity and tape specifications. Ensure the ordering part number matches the required AEC-Q101 qualification status for automotive designs. Cross-reference the SOT-323 footprint dimensions during PCB layout finalization to prevent assembly errors.

Selection Notes

Select this component when a PNP digital transistor with equal internal resistor ratios is required for space-constrained designs. The 4.7 kOhm input resistance suits standard logic levels, while the 250 MHz frequency supports high-speed switching. Verify that the -50 V voltage rating aligns with the target circuit's negative supply rails before integration.

Part Context

This part belongs to the DTA143E series of PNP digital transistors from ROHM. It serves as the complementary counterpart to the NPN DTC143E series. The device is designed for general-purpose switching and amplification where reduced board space and simplified schematic design are prioritized over discrete resistor configurations.