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ST 2SC1907
NPN Silicon Epitaxial Planar Transistor for UHF TV Tuner and Local Oscillator. The transistor is subdivided into according to its DC current gain. one group,
On special request, these transistors can be manufactured in different pin configurations.
TO-92 Plastic Package Weight approx. 0.19g
Absolute Maximum Ratings (Ta = 25 OC) Symbol Collector Base Voltage Collector Emitter Voltage Emitter Base Voltage Collector Current Emitter Current Power Dissipation Junction Temperature Storage Temperature Range VCBO VCEO VEBO IC -IE Ptot Tj TS Value 30 19 2 50 50 300 150 -55 to +150 Unit V V V mA mA mW
O O
C C
SEMTECH ELECTRONICS LTD.
(Subsidiary of Sino-Tech International Holdings Limited, a company listed on the Hong Kong Stock Exchange, Stock Code: 724)
(R)
Dated : 07/12/2002
ST 2SC1907
Characteristics at Tamb=25 OC Symbol DC Current Gain at VCE=10V, IC=10mA Current Gain Group Collector Base Breakdown voltage at IC =10 A Collector Emitter Breakdown Voltage at IC =3mA Emitter Base Breakdown Voltage at IE =10 A Collector Cutoff Current at VCB=10V Collector Emitter Saturation Voltage at IC=20mA, IB=4mA Transition Frequency at VCE=10V, IC=10mA Collector Output Capacitance at VCB=10V, f=1MHz Base Time Constant at VCB=10V, IC=10mA COB 1 2 pF fT 900 1100 MHz VCE(sat) 0.2 1 V ICBO 0.5 A V(BR)EBO 2 V V(BR)CEO 19 V V(BR)CBO 30 V hFE 40 Min. Typ. Max. Unit
rbb'
f= 31.8 MHz
Oscillation Output Power at VCB=10V, IC=10mA
Cc
-
10
25
ps
Pout
-
8
-
mW
f= 930 MHz
SEMTECH ELECTRONICS LTD.
(Subsidiary of Sino-Tech International Holdings Limited, a company listed on the Hong Kong Stock Exchange, Stock Code: 724)
(R)
Dated : 07/12/2002
ST 2SC1907
Maximum Collector Dissipation Curve
Typical Output Characteristics
(mA)
Collector Power Dissipation P C (mW)
130 120 110 100 90 80 70 60 50 40 30 20
PC
=3 00 mW
Collector Current Ic
IB=10A
Ambient Temperature Ta ( )
Collector to Emitter Voltage VCE (V)
Typical Transfer Characteristics
(mA)
D C C u r r e n t G a i n v s. Co l l e c t o r Cu r r e n t
VCE=10V
VC E=10V
DC Current Gain
Collector Current I
C
Base Emitter Voltage VBE (V)
C o l l e c t o r C u r r e n t IC ( m A )
SEMTECH ELECTRONICS LTD.
(Subsidiary of Sino-Tech International Holdings Limited, a company listed on the Hong Kong Stock Exchange, Stock Code: 724)
(R)
Dated : 07/12/2002
ST 2SC1907
Base Time Constant r bbCC (PS)
Transition Frequency vs. Collector Current
Base Time Constant vs Collector Current
VCB=10V
Transition Frequency f T (MHz)
VC E=10V
C o l l e c t o r C u r r e n t IC ( m A )
C o l l e c t o r C u r r e n t IC ( m A )
Input Admittance Characteristics
y ib = g ib+jb ib
Reverse Transfer Admittance Characteristics
400MHz 600
Input Suceptance b ib (mS)
1200 MHz 1000 900 800 600
=5 mA 10 m A 15 mA IC
400
800 900 1000 VCB=10V Input end short 1200
m A
Input Conductance g ib (mS)
Reverse Transfer Conductance g rb (mS)
SEMTECH ELECTRONICS LTD.
(Subsidiary of Sino-Tech International Holdings Limited, a company listed on the Hong Kong Stock Exchange, Stock Code: 724)
(R)
Dated : 07/12/2002
10 m
5m A
IC
=1 5
VCB=10V Output end short
Reverse Transfer Suceptance brb (mS)
y rb = g rb+jb rb
A
ST 2SC1907
Forward Transfer Admittance Characteristics
Forward Transfer Suceptance bfb (mS)
yfb = gfb+jbfb 400MHz
10 5m A mA
IC =1 5m A
Output Admittance Characteristics
yob = gob + jbob
600
800 VCB=10V output end short 900 1000 1200
Output Suceptance bob(mS)
IC 1 0 =5 m 15 mA A mA
VCB=10V Input end short
Forward Transfer Conductance
gfb (mS)
Output Conductance gob (mS)
SEMTECH ELECTRONICS LTD.
(Subsidiary of Sino-Tech International Holdings Limited, a company listed on the Hong Kong Stock Exchange, Stock Code: 724)
(R)
Dated : 07/12/2002

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