Overview: Variable Capacitance Diodes MA2C840
Silicon epitaxial planar type
Unit : mm For AFC of UHF and VHF electronic tuner
φ 0.45 max. Parameter Reverse voltage (DC) Peak forward current Junction temperature Storage temperature Symbol VR VRM Tj Tstg Rating 32 34 150 −55 to +150 Unit
2 V V °C °C
φ 1.75 max. 1 : Anode 2 : Cathode JEDEC : DO-34 I Electrical Characteristics Ta = 25°C
Parameter Forward current (DC) Reverse current (DC) Reverse current (DC) Capacitance ratio* Symbol VF IR Ct Ct(2V)/C t(10V) Ct(6V)/C t(10V) Series resistance rD CD = 9 pF, f = 470 MHz IF = 100 mA VR = 30 V VR = 2 V, f = 1 MHz VR = 10 V, f = 1 MHz 10.5 3.3 2.5 1.64 1.2 Conditions Min Typ Max 1.1 10 16 5.7 3.4 Ω Unit V nA pF Note) 1 Rated input/output frequency: 470 MHz 2 * : Ct(2V)/Ct(10V), Ct(6V)/Ct(10V) rank classification table Class Ct(2V)/Ct(10V) Ct(6V)/Ct(10V) A 2.5 to 3.0 B 2.8 to 3.4 M 2.8 to 3.4 >1.64 I Cathode Indication
Class 1st band 2nd band A Light Blue White B Light Blue Green M Light Blue Light Blue 13 min. I Absolute Maximum Ratings Ta = 25°C 0.2 max. 2.2 ± 0.3 • Super-small envelope (DO-34), allowing to insert into a 5 mm pitch hole. • Small series resistance rD • Large variable capcitance range 1st Band 2nd Band 0.2 max. 13 min.
