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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 Rev.

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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.
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