BB178

UNISONIC TECHNOLOGIES CO., LTD BB178 Preliminary DIODE VHF VARIABLE CAPACITANCE DIODE „ DESCRIPTION 2 1 SOD-523 The UTC BB178 is a planar technology variable capacitance diode providing the designers excellent matching performance, ultra-low series resistance and great linearity. The UTC BB178 is suitable for VCO (Voltage Controlled Oscillators) and Electronic tuning in VHF (Very High Frequency) tuners. „ FEATURES * Excellent matching to 2% DMA * Ultra low series resistance. * Great linearity * C28: 2.6 pF; ratio: 15 „ ORDERING INFORMATION Package SOD-523 Pin Assignment 1 2 A K Packing Tape Reel Ordering Number Lead Free Halogen Free BB178L-CC2-R BB178G-CC2-R Note: Pin Assignment: A: Anode, K: Cathode „ MARKING 78 G: Halogen Free L : Lead Free www.DataSheet4U.com www.unisonic.com.tw Copyright © 2011 Unisonic Technologies Co., Ltd 1 of 2 QW-R601-032.a BB178 „ Preliminary DIODE ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL RATINGS UNIT Continuous Reverse Voltage VR 32 V Peak Reverse Voltage In series with a 10 kΩ resistor VRM 35 V Continuous Forward Current IF 20 mA Storage Temperature TSTG -40~+150 °C Operating Junction Temperature TJ -40~+125 °C Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. „ ELECTRICAL CHARACTERISTICS (TJ =25°C unless otherwise specified.) PARAMETER SYMBOL IR rS Cd Cd(1V) Cd(2V) Cd(1V) Cd(28...