Built in bias resistor PNP digital transistor ROHM DTA144TKAT146 designed for switching inverter and driver circuit

Product Overview

DTA144T series are PNP digital transistors with built-in bias resistors, designed for simplified inverter and switching circuit configurations. These transistors eliminate the need for external input resistors, streamlining circuit design. Featuring thin-film resistors with complete isolation, they support negative biasing and minimize parasitic effects. They are ideal for switching, inverter, interface, and driver circuits. Complementary NPN types are available in the DTC144T series. These products are Lead-Free and RoHS Compliant.

Product Attributes

• Brand: ROHM
• Type: PNP Digital Transistor (Bias Resistor Built-in Transistor)
• Certifications: Lead Free/RoHS Compliant

Technical Specifications

Model	Package	Package Size	VCEO	IC	R1 (Typ.)	Power Dissipation (PD*)	Marking
DTA144TM	VMT3	1212	-50V	-100mA	47k	150 mW	96
DTA144TE	EMT3	1616	-50V	-100mA	47k	150 mW	96
DTA144TUA	UMT3	2021	-50V	-100mA	47k	200 mW	96
DTA144TKA	SMT3	2928	-50V	-100mA	47k	200 mW	96

Parameter	Symbol	Conditions	Min.	Typ.	Max.	Unit
Collector-base breakdown voltage	BVCBO	IC = -50A	-50	-	-	V
Collector-emitter breakdown voltage	BVCEO	IC = -1mA	-50	-	-	V
Emitter-base breakdown voltage	BVEBO	IE = -50A	-5	-	-	V
Collector cut-off current	ICBO	VCB = -50V	-	-	-0.5	A
Emitter cut-off current	IEBO	VEB = -4V	-	-	-0.5	A
Collector-emitter saturation voltage	VCE(sat)	IC / IB = -5mA / -0.5mA	-	-	-0.3	V
DC current gain	hFE	VCE = -5V, IC = -1mA	100	250	600	-
Input resistance	R1	-	-	32.9	61.1	k
Transition frequency	fT*2	VCE = -10V, IE = 5mA, f = 100MHz	-	250	-	MHz

*1 Each terminal mounted on a reference footprint

*2 Characteristics of built-in transistor

2412232047_ROHM-DTA144TKAT146_C703610.pdf