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1T397
Variable Capacitance Diode
Description The 1T397 is a variable capacitance diode designed for the electronic tuning of wide band CATV tuners, and it has a super miniature package. Features • Super miniature package • Large capacitance ratio C2/C25=14.5 Min. C1/C28=21.5 Min. C25/C28=1.03 Min. • Small series resistance rs=1.1 Ω Max. • High reverse voltage VR=34 V Structure Silicon epitaxial planar-type diode M-235
Absolute Maximum Ratings (Ta=25 °C) • Reverse voltage VR 34 • Operating temperature Topr –20 to +75 • Storage temperature Tstg –65 to +150
V °C °C
Electrical Characteristics Item Reverse current Reverse voltage Diode capacitance Symbol IR VR C2 C25 C2/C25 C1/C28 C25/C28 rs ∆C Conditions VR=28 V IR=1 µA VR=2 V, f=1 MHz VR=25 V, f=1 MHz Min. 34 42.9 2.60 14.5 21.5 1.03 Typ.
1T397 Datasheet
