High DC Current Gain NPN Transistor Slkor 2SD1781R Plastic Encapsulate Type in Compact SOT23 Package

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Product Description

Product Overview

The 2SD1781 is a Plastic-Encapsulate Transistor (NPN) designed for various electronic applications. It offers a very low VCE(sat) of less than 0.4 V (Typ.) at an IC/IB ratio of 500mA / 50mA. This transistor complements the 2SB1197 and is suitable for use in common emitter configurations. Key features include a high DC current gain (hFE) and a transition frequency (fT) of 150 MHz. It is packaged in a SOT-23 format.

Product Attributes

Type: Plastic-Encapsulate Transistor (NPN)
Complementary to: 2SB1197
Package: SOT-23
Brand: slkormicro (implied by website reference)

Technical Specifications

Parameter	Symbol	Test Conditions	Min	Typ	Max	Unit
Collector-Base Breakdown Voltage	V(BR)CBO	IC=50A, IE=0			40	V
Collector-Emitter Breakdown Voltage	V(BR)CEO	IC=1mA, IB=0			32	V
Emitter-Base Breakdown Voltage	V(BR)EBO	IE=50A, IC=0			5	V
Collector Cut-off Current	ICBO	VCB=20V, IE=0			0.5	A
Emitter Cut-off Current	IEBO	VEB=4V, IC=0			0.5	A
DC Current Gain	hFE(1)	VCE=3V, IC=100mA	120		390
Collector-Emitter Saturation Voltage	VCE(sat)	IC=500mA, IB=50mA		0.4		V
Transition Frequency	fT	VCE=5V, IC=50mA, f=100MHz		150		MHz
Collector Output Capacitance	Cob	VCB=10V, IE=0, f=1MHz			10	pF

Classification of hFE(1)	Rank	Range	Marking
	Q	120-270	AFQ
	R	180-390	AFR

Parameter	Symbol	Value	Unit
Collector-Base Voltage	VCBO	40	V
Collector-Emitter Voltage	VCEO	32	V
Emitter-Base Voltage	VEBO	5	V
Collector Current	IC	800	mA
Collector Power Dissipation	PC	200	mW
Thermal Resistance Junction To Ambient	RJA	625	/W
Operation Junction and Storage Temperature Range	TJ,Tstg	-55+150

Symbol	Dimensions In Inches	Dimensions In Millimeters
A	0.900 - 1.150	0.035 - 0.045
A1	0.000 - 0.100	0.000 - 0.004
A2	0.900 - 1.050	0.035 - 0.041
b	0.300 - 0.500	0.012 - 0.020
c	0.080 - 0.150	0.003 - 0.006
D	2.800 - 3.000	0.110 - 0.118
E	1.200 - 1.400	0.047 - 0.055
E1	2.250 - 2.550	0.089 - 0.100
e	1.800 - 2.000	0.071 - 0.079
e1
L
L1	0.300 - 0.500	0.012 - 0.020
	0 - 8	0 - 8
REF	0.550	0.022
TYP	0.950	0.037