STC Data
STC Transistor
Type
N
N
PNP
PNP
PNP
PNP
PNP
PNP
PNP
PNP
PNP
PNP
PNP
PNP
PNP
PNP
PNP
PNP
PNP
PNP
PNP
PNP
PNP
PNP
PNP
PNP
PNP
PNP
PNP
PNP
NPN
NPN
Construction
Point Contact
Point Contact
Point Contact
Point Contact
Point Contact
Prototype Junction
Prototype Junction
Prototype Junction
Alloy Junction
Alloy Junction
Alloy Junction
Alloy Junction
Alloy Junction
Alloy Junction
Alloy Junction
Alloy Junction
Alloy Junction
Alloy Junction
Alloy Junction
Alloy Junction
Alloy Junction
Alloy Junction
Alloy Junction
Alloy Junction
Alloy Junction
Alloy Junction
Alloy Junction
Alloy Junction
Alloy Junction
Alloy Junction
Alloy Junction
Alloy Junction
Alloy Junction
Alloy Junction
Alloy Junction
Alloy Junction
Alloy Junction
Alloy Junction
Alloy Junction
Alloy Junction
Alloy Junction
Ge/Si
Ge
Ge
Ge
Ge
Ge
Ge
Ge
Ge
Ge
Ge
Ge
Ge
Ge
Ge
Ge
Ge
Ge
Ge
Ge
Ge
Ge
Ge
Ge
Ge
Ge
Ge
Ge
Ge
Ge
Ge
Ge
Ge
Ge
Ge
Ge
Ge
Si
Si
Power Max mW
150
150
200
200
200
50
50
50
50
50
50
93
50
50
50
93
40
40
160
40
40
40
40
80
80
80
80
80
80
180
325
325
Vc Max
50
50
20
20
20
20
20
20
20
10
56
20
30
65
36
30
30
50
30
20
30
30
30
30
30
20
30
30
40
25
20
Ic Max mA
30
30
25
25
25
25
25
25
100
100
Beta (hfe)
0.1
2
10
30
50
10
30
50
28
65
40
52
32
35
70
28
23
23
23
63
23
23
28
23
23
63
23
23
60-200
10
30
Alpha Mc
0.5
0.5
0.5
0.5
0.5
0.5
4
8.5
0.6
0.6
0.5
0.5
0.6
6.3
2
1
2.5
10
2
2.5
6.3
2
2.5
10
2
2.5
1.5
1
4
Use
3X100N
3X101N
TP1
TP2
LS737
3X/300N
3X/301N
3X/302N
TJ1
TJ2
TJ3
TJ1
TJ2
TJ3
TS1
TS2
TS3
TS4
TS7
TS8
TS9
TS13
TS14
TS15
TS17
TS18
TK20A
TK21A
TK23A
TK24A
TK25A
TK26A
TK27A
TK20B
TK21B
TK24B
TK25B
TK26B
TK27B
TK40A
TED110
TED1101
Click on image for an enlarged view
Control & Switching to 100kc
Rf Amplifier to 2Mc
Small Signal AF
Small Signal AF
Small Signal AF
Small Signal AF
Small Signal AF
Small Signal AF
Symetrical Small Signal AF Switch
Small Signal Amplifier to 1Mc
Small Signal Amplifier to 1Mc
AF Class B amplifier
Small Signal AF replacement for TS3
Small Signal AF replacement for TS1 & TS2
Small Signal AF High Voltage
AF Class B amplifier
High Speed Switching
Small Signal AF and switching
Low Frequency carrier
Small Signal AF and switching
High Speed Switching
As for TK21A with higher Collector cut-off current
As for TK24A with higher Collector cut-off current
High Speed Switching
Small Signal AF and switching
Small Signal AF and switching
High Speed Switching
As for TK21A with higher Collector cut-off current
As for TK24A with higher Collector cut-off current
High gain AF
Amplifier, Switching Conttrol
Amplifier, Switching Conttrol