DISCRETE SEMICONDUCTORS DATA SHEET BB145B Low-voltage variable capacitance diode Product specification 2004 Mar 29 Supersedes data of 2002 Nov 18NXP Semiconductors Product specification Low-voltage variable capacitance diode BB145B FEATURES PINNING Ultra small plastic SMD package PIN DESCRIPTION C4: 2.75 pF ratio: 2.4 1 cathode Low series resistance. 2 anode APPLICATIONS Voltage controlled oscillators (VCO). 1 2 DESCRIPTION sym008 The BB145B is a planar technology variable capacitance diode in a SOD523 (SC-79) package. Marking code: Z. Orientation of marking code as shown. Cathode side indicated by a bar. Fig.1 Simplified outline (SOD523 SC-79) and symbol. ORDERING INFORMATION PACKAGE TYPE NUMBER NAME DESCRIPTION VERSION BB145B plastic surface mounted package 2 leads SOD523 LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 60134). SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT V continuous reverse voltage 6V R V peak reverse voltage in series with a 10 k resistor 8V RM I continuous forward current 20 mA F T storage temperature 55 +150 C stg T operating junction temperature 55 +150 C j ELECTRICAL CHARACTERISTICS T =25 C unless otherwise specified. j SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT I reverse current V = 6 V see Fig.3 10 nA R R V =6V T =85 C see Fig.3 200 nA R j r diode series resistance f = 470 MHz V =1 V 0.6 s R C diode capacitance V =1V f=1MHz seeFigs 2and4 6.4 7.2 pF d R V = 4 V f = 1 MHz see Figs 2 and 4 2.55 2.95 pF R C capacitance ratio f = 1 MHz 2.2 d1V ---------------- C d4V 2004 Mar 29 2 Z