Variable Capacitance Diodes MA2X333 N type GaAs epitaxial planar type Unit : mm INDICATES CATHODE 1.6 − 0.1 2 ■ Features 0.55 ± 0.1 1 + 0.2 For VCO of a radio For electronic tuning of UHF and VHF TV tuner + 0.2 2.7 − 0.1 • Small series resistance rD and high Q value • Large capacitance ratio during low-voltage operation 3.3 ± 0.2 *(3.8 ± 0.2) 5° Unit 9 V Forward current (DC) IF 100 mA Junction temperature Tj 125 °C Storage temperature Tstg −55 to +125 °C + 0.1 Rating VR 0.16 − 0.03 Parameter 0 to 0.05 Symbol Reverse voltage (DC) 1.1 − 0.1 + 0.2 0.3 ■ Absolute Maximum Ratings Ta = 25°C 5° *( ): WL type 1 : Anode 2 : Cathode Mini Type Package (2-pin) Marking Symbol: 6C ■ Electrical Characteristics Ta = 25°C Parameter Symbol Conditions Reverse current (DC) IR VR = 6 V Reverse voltage (DC) VR IR = 1 µA Diode capacitance Series resistance* Min Typ Max Unit 100 nA 9 V CD(2V) VR = 2 V, f = 1 MHz 13.5 15.5 17.0 pF CD(4V) VR = 4 V, f = 1 MHz 4.0 6.8 7.5 pF CD(6V) VR = 6 V, f = 1 MHz 2.8 4.0 4.5 pF 0.25 0.35 Ω rD CD = 9 pF, f = 470 MHz Note) 1．Rated input/output frequency: 470 MHz 2．* : rf measuring instrument: YHP MODEL 4191A RF IMPEDANCE ANALYZER 1 MA2X333 Variable Capacitance Diodes IF V F 100 CD VR IR V R 100 Ta = 25°C 100 Ta = 25°C f = 1 MHz Ta = 25°C 1 0.1 Diode capacitance CD (pF) Reverse current IR (nA) Forward current IF (mA) 50 10 10 1 0.1 30 20 10 5 3 2 0.01 0.01 0 0.2 0.4 0.6 0.8 1.0 CD Ta f = 1 MHz 1.02 CD(Ta) CD(Ta = 25°C) VR = 2 V 1.01 6V 1.00 0.99 0.98 0.97 0 20 40 60 80 Ambient temperature Ta (°C) 2 2 4 6 8 Reverse voltage VR (V) Forward voltage VF (V) 1.03 0 100 10 1 0 4 8 12 16 Reverse voltage VR (V) 20