ztk6.8 thru ztk33 vishay semiconductors fo r merly general semiconductor document number 88426 www.vishay.com 02-may-02 1 v oltage stabilizers features ?temperature-compensated stabilizing circuits ? monolithic linear integrated circuits with e xtremely short thermal run-in time producing a con- stant temperature-compensated voltage. they are par- ticularly suitable for stabilizing the tuning v oltage in radio and tv tuners employing voltage- va r iable capacitance diodes. mechanical data case: do-35 glass case w eight: approx. 0.13 g pa ck a ging codes/options: d7/10k per 13 reel (52mm tape), 20k/box d8/10k per ammo tape, (52mm tape), 20k/box do-204ah (do-35 glass) dimensions are in inches and (millimeters) maximum ratings (t a = 25? unless otherwise noted) p arameter symbol value unit operating current (see table ?haracteristics? j unction temperature t j 150 ? storage temperature range t s 20 to +150 ? electrical and thermal characteristics (t a = 25? unless otherwise noted) p arameter symbol min. typ. max. unit t emperature coefficient of the operating voltage vz ?0 ? +5 (1) 10 ? / c at i z = 5 ma ?.5 in the range of t amb = 20 to 60? thermal run-in-time t t h ?0 (2) ? thermal resistance junction to ambient air r ja 400 c/w operating voltage dynamic resistance permissable operating at i z = 5ma (3) at i z = 5ma at t amb = 25 c (4) t ype v z (v) r zj (w) i z max. (ma) ztk6.8 6.4 ... 7.1 10 (<25) 36 ztk9 8 ... 10 10 (<25) 27 ztk11 10 ... 12 10 (<25) 1 ztk18 16 ... 20 11(<25) 13 ztk22 20 ... 24 11(<25) 1 ztk27 24 ... 30 12 (<25) 8 ztk33a 30 ... 32 12 (<25) 7 ztk33b 32 ... 34 12 (<25) 7 ztk33c 34 ... 36 12 (<25) 7 notes: (1) valid provided that leads are kept at ambient temperature at a distance of 8 mm from case (3) tested with pulses t p = 5ms (2) at the end of this time ? v z has reached 90% of its final value ? v z max . ? v z max = v z (a) ?v z (0), (4) v alid provided that leads are kept at ambient where v z (0) = v z in the instant of turn-on and v z (a) = v z at thermal equilibrium temperature at a distance of 8mm from case.
ztk6.8 thru ztk33 vishay semiconductors fo r merly general semiconductor www.vishay.com document number 88426 2 02-may-02 ratings and characteristic curves (t a = 25? unless otherwise noted) c
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