BB731S Tuner Diodes FEATURES SOD-323 ♦ Silicon epitaxial planar capacitance diodes with very wide effective capacitance variation for tuning the VHF range 41 … 170 MHz in hyperband television tuners. .012 (0.3) .106 (2.7) .091 (2.3) .079 (2.0) .063 (1.6) Cathode Mark ♦ These diodes are available as singles or as Top View max. .049 (1.25) max. .004 (0.1) .059 (1.5) .043 (1.1) max. .006 (0.15) matched sets of two or more units according to the tracking condition described in the table of characteristics. ♦ This diode is also available in SOD-123 case with the type designation BB731. MECHANICAL DATA min. .010 (0.25) Case: SOD-323 Plastic Package Weight: approx. 0.004 g Dimensions in inches and (millimeters) MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 25 °C ambient temperature unless otherwise specified Symbol Value Unit Reverse Voltage VR 32 V Ambient Temperature Tamb 125 °C Storage Temperature Range TS –55 to +125 °C 4/98 277 BB731S ELECTRICAL CHARACTERISTICS Ratings at 25 °C ambient temperature unless otherwise specified Symbol Min. Typ. Max. Unit Reverse Breakdown Voltage at IR = 100 µA V(BR)R 32 – – V Leakage Current at VR = 30 V IR – – 10 nA Capacitance, f = 1 MHz at VR = 28 V at VR = 1 V Ctot Ctot 2.9 62.0 – – 3.4 76.0 pF pF Effective Capacitance Ratio, f = 1 MHz at VR = 1 to 28 V Ctot (1 V) Ctot (28V) 19.5 – – – Series Resistance at f = 300 MHz, Ctot = 25 pF rs – 1.0 – Ω Series Inductance Ls – 2.5 – nH For any two of six consecutive diodes in the carrier tape, the maximum capacitance deviation in the reverse bias voltage of VR = 0.5 to 28 V is max. 2.5% 278 RATINGS AND CHARACTERISTIC CURVES BB731S 279 280