BB133

LESHAN RADIO COMPANY, LTD. VHF Variable Capacitance Diode FEATURES · Excellent linearity · Excellent matching to 0.7% DMA · Very small plastic SMD package · C28: 2.5 pF; ratio: 16. · Low series resistance. APPLICATIONS · Electronic tuning in VHF television tuners, band B up to 460 MHz · VCO. DESCRIPTION The BB133 is a variable capacitance diode fabricated in planar technology, and encapsulated in the SOD323 very small plastic SMD package. The excellent matching performance is achieved by gliding matching and a direct matching assembly procedure. The unmatched type, BB150 has the same specification. 1 BB133 2 SOD– 323 MARKING DIAGRAM P3 1 CATHODE 2 ANODE LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 134). SYMBOL PARAMETER MIN. MAX. continuous reverse voltage – 30 VR IF continuous forward current – 20 Tstg storage temperature –55 +150 Tj operating junction temperature –55 +125 UNIT V mA °C °C ELECTRICAL CHARACTERISTICS Tj = 25 °C unless otherwise specified. SYMBOL IR rs Cd Cd( 0.5V ) Cd (28V ) capacitance matching ∆Cd Cd Note 1. VR is the value at which Cd = 30 pF. VR = 0.5 to 28 V; in a sequence of 4 diodes (gliding) VR= 0.5 to 28 V; in a sequence of 15 diodes (gliding) – 2 % – 0.7 % PARAMETER reverse current diode series resistance diode capacitance capacitance ratio CONDITIONS VR = 30 V; see Fig.2 VR = 30 V; Tj = 85 °C; see Fig.2 f = 100 MHz; note 1 VR = 0.5 V; f = 1 MHz; see Figs 1 and 3 VR = 28 V;f = 1 MHz; see Figs 1 and 3 f = 1 MHz MIN. – – – 38 2.2 14 MAX. UNIT 10 200 0.9 46 2.6 21 nA nA Ω pF pF BB133–1/2 LESHAN RADIO COMPANY, LTD. BB133 f = 1 MHz; Tj = 25 °C. Fig.1 Diode capacitance as a function of reverse voltage; typical values. Tj = 0 to 85 °C. Tj °C. VR (V). Fig.2 Reverse current as a function of junction temperature; maximum values. Fig.3 Temperature coefficient of diode capacitance as a function of reverse voltage; typical values. BB133–2/2