DATA SHEET
SILICON TRANSISTOR
2SC3841
UHF OSCILLATOR AND UHF MIXER
NPN SILICON EPITAXIAL TRANSISTOR
MINI MOLD
Document No. P10362EJ1V1DS00 (1st edition)
Date Published March 1997 N
Printed in Japan
1986©
DESCRIPTION
The 2SC3841 is an NPN silicon epitaxial transistor intended for use as
UHF oscillators and a UHF mixer in a tuner of a TV receiver.
The device features stable oscillation and small frequency drift against
any change of the supply voltage and the ambient temperature.
It is designed for use in small type equipments especially recommendd
for Hybried Integrated Circuit and other applications.
FEATURES
• High Gain Bandwidth Procuct; fT = 4.0 GHz TYP.
• Low Collector to Base Time Constant; CC
G01 rb’b = 4.0 ps TYP.
• Low Output Capacitance; Cob = 1.5 pF MAX.
ABSOLUTE MAXIMUM RATINGS (TA = 25 G01C)
Maximum Voltages and Current
Collector to Base Voltage VCBO 25 V
Collector to Emitter Voltage VCEO 12 V
Emitter to Base Voltage VEBO 3V
Collector Current IC 30 mA
Maximum Power Dissipation
Total Power Dissipation PT 200 mW
Maximum Power Temperutures
Junction Temperature Tj 150 G01C
Storage Temperature Tstg G0255 to +150 G01C
ELECTRICAL CHARACTERISTICS (TA = 25 G01C)
CHARACTERISTIC SYMBOL MIN. TYP. MAX. UNIT TEST CONDITIONS
Collector Cutoff Current ICBO 0.1 G01AVCB = 10 V, IE = 0
DC Current Gain hFE 40 100 200 VCE = 10 V, IC = 5.0 mA
Collector Saturation Voltage VCE(sat) 0.09 0.5 V IC = 10 mA, IB = 1.0 mA
Gain Bandwidth Product fT 2.5 4.0 GHz VCE = 10 V, IE = G015.0 mA
Output Capacitance Cob 0.85 1.5 pF VCB = 10 V, IE = 0, f = 1.0 MHz
Collector to Base Time Constatnt CC
G01 rb’b
4.0 10.0 ps VCE = 10 V, IE = G015.0 mA, f = 31.9 MHz
hFE Classification
Class T62/P * T63/Q * T64/R *
Marking T62 T63 T64
hFE 40 to 80 60 to 120 100 to 200 * Old Specification / New Specification
PACKAGE DIMENSIONS
(Units: mm)
1.5
2
1
3
Marking
PIN CONNECTIONS
1.
2.
3.
Emitter
Base
Collector
2.8±0.2
2.9±0.2
1.1 to 1.4
0 to 0.1
0.95
0.3
0.95
0.4
+0.1 −
0.05
0.4
+0.1 −
0.05
0.16
+0.1 −
0.06
0.65
+0.1
−0.15