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U257B

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ID = 62253
       
Country:
Germany
Brand: Telefunken Deutschland (TFK), (Gesellschaft für drahtlose Telegraphie Telefunken mbH
Tube type:  IC - Integrated Circuit   Indication 
Identical to U257B

Base SPECIAL TUBEBASE in general
Description

Aufbau/Content: IC (__ Trans., __ Widerst., __ Dioden);
Form/Case/Outline: DIP-8;
Type/application: LED display driver (5 diodes), logarithmic scale;
In combination with U267B = 10 diodes;
Daten/electr.data: Vcc: 12...25 V; Icc: 25 mA; Pd: <690 mW; t op: -10...+60 °C @ 25 V;
-

 
Dimensions (WHD)
incl. pins / tip
10 x 7 x 8 mm / 0.39 x 0.28 x 0.31 inch
Weight 1 g / 0.04 oz
Information source - - Manufacturers Literature   

u257b_umgeb1.png
U257B: Tfk
Günther Stabe † 19.8.20
    More ...
dip_8~~20.png U257B: TTT Steidle 1981
Günther Stabe † 19.8.20

 

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