BB178

BB178 VHF variable capacitance diode Rev. 3 — 5 September 2011 Product data sheet 1. Product profile 1.1 General description The BB178 is a planar technology variable capacitance diode, in a SOD523 (SC-79) ultra small plastic package. The excellent matching performance is achieved by gliding matching and a Direct Matching Assembly (DMA) procedure. 1.2 Features and benefits  Excellent linearity  Excellent matching to 2 % DMA  Ultra small plastic SMD package  Cd(28V): 2.6 pF; Cd(1V) to Cd(28V) ratio: 15  Very low series resistance. 1.3 Applications  Electronic tuning in VHF television tuners, band B up to 460 MHz  Voltage Controlled Oscillators (VCO). 2. Pinning information Table 1. Pin 1 2 Pinning Description cathode anode [1] The marking bar indicates the cathode. 3. Ordering information Simplified outline[1] Symbol 1 2 sym008 Table 2. Ordering information Type number Package Name Description BB178 SC-79 plastic surface mounted package; 2 leads Version SOD523 NXP Semiconductors BB178 VHF variable capacitance diode 4. Marking Table 3. Marking Type number BB178 Marking code 8 5. Limiting values Table 4. Limiting values In accordance with the Absolute Maximum Rating System (IEC 60134). Symbol Parameter Conditions Min VR reverse voltage - VRM peak reverse voltage in series with a - 10 k resistor IF forward current - Tstg storage temperature 55 Tj junction temperature 55 Max Unit 32 V 35 V 20 mA +150 C +125 C ...