BB729 Tuner Diodes FEATURES SOD-123 ♦ Silicon epitaxial planar capacitance diodes with .022 (0.55) .112 (2.85) .100 (2.55) max. .006 (0.15) max. .053 (1.35) .067 (1.70) .055 (1.40) ♦ Top View max. .004 (0.1) .152 (3.85) .140 (3.55) Cathode Mark ♦ very wide effective capacitance variation for tuning the whole range of VHF CTV tuners. 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. This diode is also available in SOD-323 case with the type designation BB729S. MECHANICAL DATA Case: SOD-123 Plastic Case Weight: approx. 0.01 g min. .010 (0.25) 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 4/98 268 BB729 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 2.4 36.0 – – 2.9 42.0 pF pF Effective Capacitance Ratio, f = 1 MHz at VR = 1 to 28 V Ctot (1 V) Ctot (28V) 13.5 – – – Series Resistance at f = 470 MHz, Ctot = 25 pF rs – 0.80 – 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% 269 RATINGS AND CHARACTERISTIC CURVES BB729 270