Diodes SMD Type Tuner Diodes BB721S SOD-323 +0.05 0.85-0.05 +0.05 0.3-0.05 +0.1 1.7-0.1 Unit: mm +0.1 1.3-0.1 Features Silicon epitaxial planar capacitance diodes with very wide effective capacitance +0.1 2.6-0.1 1.0max variation for tuning the whole range of UHF television bands. Two BB721/BB721S tuner diodes in series are used for direct satellite receivers. 0.375 0.475 +0.05 0.1-0.02 These diodes are available as singles or as matched sets of two or more units according to the tracking condition described in the table of characteristics. A bsolute M axim um R atings T a = 25 P aram eter R everse V oltage A m bient Tem perature S torage Tem perature R ange S ym bol V alue U nit VR 32 V T amb 125 TS -55 to +125 Electrical Characteristics Ta = 25 Parameter Reverse Breakdown Voltage Leakage Current Capacitance Effective Capacitance Ratio Symbol VBR(R) IR Ctot Conditions IR = 100 A Min Typ Max 32 V VR = 30 V 10 f = 1 MHz;VR = 28 V 1.9 2.3 f = 1 MHz;VR = 1 V 17.5 20 8.2 Cd(1V)/Cd(28V) f = 1 MHz;VR = 1 to 28 V Series Resistance rs f = 470 MHz, Ctot = 14 pF Series Inductance Ls Unit nA pF 9.8 0.55 2.5 nH www.kexin.com.cn 1