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| Variable Capacitance Diodes MA2C840 Silicon epitaxial planar type Unit : mm For AFC of UHF and VHF electronic tuner 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 1.75 max. 1 : Anode 2 : Cathode JEDEC : DO-34 I Electrical Characteristics Ta = 25C 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 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 = 25C 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. I Features COLORED BAND INDICATES CATHODE 1 1 MA2C840 IF V F 103 Variable Capacitance Diodes IR V R Ta = 25C 1.06 f = 1 MHz 1.05 VR = 2 V 10 V Ct Ta 103 102 Forward current IF (mA) Reverse current IR (nA) 102 1.04 Ct(Ta) Ct (Ta = 25C) 0 4 8 12 16 20 24 28 32 10 75C 25C 1.03 1.02 1.01 1.00 0.99 10 1 Ta = 125C - 20C 10-1 1 10-2 10-1 0 0.2 0.4 0.6 0.8 1.0 1.2 0.98 -40 0 40 80 120 160 200 Forward voltage VF (V) Reverse voltage VR (V) Ambient temperature Ta (C) Ct VR 32 28 f = 1 MHz Ta = 25C 1 IR Ta VR = 28 V 0.5 Terminal capacitance Ct (pF) Reverse current IR (nA) 0.3 1 3 10 30 100 24 20 16 12 8 4 0 0.1 0.3 0.2 0.1 0.05 0.03 0.02 0.01 0 20 40 60 80 100 Reverse voltage VR (V) Ambient temperature Ta (C) Ct rank classification Ct(10V) (pF) 3.0 3.5 4.0 4.5 5.0 5.5 2.8 2.5 16 15 Ct(2V) / Ct(10V) = 3.4 3.0 Ct(2V) (pF) 14 13 12 11 10 2 6.0 |
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