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BF121

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ID = 40731
       
Country:
Germany
Brand: Intermetall Halbleiterwerk, Düsseldorf
Tube type:  Transistor   VHF 
Identical to BF121
Similar Tubes
Normally replaceable-slightly different:
  BF153 ; BF198 ; BF310
Base Wires
Description

Aufbau/Material/Pol.: Silizium Planar NPN;
Form/Case/Outline: Min.-Plastik (auch in TO-92);
Daten/electr.data: I F: 4 mA; U F: 10 V; Isp: __ µA; ß (beta): >30; N: 330 mW; Imax: 25 mA; Umax(Uce): 30 V; f g: 350 MHz; tmax j: 125 °C.
Ähnlich/similar: TT21 (STC-Cannon)
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Dimensions (WHD)
incl. pins / tip		 6 x 3 x 6 mm / 0.24 x 0.12 x 0.24 inch
Weight 1 g / 0.04 oz
Information source -- Schematic   KTT 1969/70
bf121_sch.png
BF121: Franzis Verlag_Diefenbach_Amateurfunk 1976
Heinz Höger
bf121_s.gif BF121: TVT 1979/80 ECA
Günther Stabe † 19.8.20
d_itt_bf121_dat1.png
BF121: ITT_Transistoren 1971_72
Thomas Günzel † 1.8.22
More ...
Usage in Models 1= 1966?? ; 1= 1967? ; 2= 1968? ; 18= 1968 ; 12= 1969 ; 1= 1970?? ; 1= 1970? ; 11= 1970 ; 12= 1971 ; 2= 1972? ; 11= 1972 ; 8= 1973 ; 1= 1975 ; 1= 1976?
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):82

Collection of

Karl-Heinz Entrich † 7.21 (D)
 
d_itt_bf121.jpg

BF121
 
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