BB909A

DISCRETE SEMICONDUCTORS DATA SHEET M3D051 BB909A; BB909B VHF variable capacitance diodes Product specification Supersedes data of April 1992 File under Discrete Semiconductors, SC01 1996 May 03 Philips Semiconductors Product specification VHF variable capacitance diodes FEATURES • Excellent linearity • Matched to 2.5% • Hermetically sealed leaded glass SOD68 (DO-34) package • C28: 2.9 pF; ratio: 13.5 • Low series resistance. APPLICATIONS • Electronic tuning in VHF television tuners, band B up to 460 MHz • VCO. DESCRIPTION The BB909A, BB909B are variable capacitance diodes, fabricated in planar technology, and encapsulated in hermetically sealed leaded glass SOD68 (DO-34) packages. ELECTRICAL CHARACTERISTICS Tj = 25 °C; unless otherwise specified. SYMBOL IR rs Cd PARAMETER reverse current diode series resistance diode capacitance BB909A CONDITIONS VR = 28 V; see Fig.3 VR = 28 V; Tj = 85 °C; see Fig.3 f = 100 MHz; note 1 see Figs 2 and 4 VR = 1 V; f = 1 MHz VR = 3 V; f = 1 MHz VR = 28 V; f = 1 MHz BB909B VR = 1 V; f = 1 MHz VR = 3 V; f = 1 MHz VR = 28 V; f = 1 MHz C d ( 1V ) -------------------C d ( 28V ) ∆C d --------Cd Note 1. VR is the value at which Cd = 30 pF. capacitance ratio f = 1 MHz handbook, halfpage k BB909A; BB909B a MAM234 Cathode side indicated by a green band on a black body (BB909A and BB909B). Additional red band (BB909A only). Fig.1 Simplified outline (SOD68; DO-34) and symbol. LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 134). SYMBOL VR IF Tstg Tj PARAMETER continuous reverse voltage continuous forward current storage temperature operating junction temperature − − −55 −55 MIN. MAX. 30 20 +150 +100 V mA °C °C UNIT MIN. − − − 31 − 2.6 33.5 − 2.8 12 TYP. − − − − 23 − − 25 − − MAX. 10 200 0.9 − − 3 − − 3.2 15 UNIT nA nA Ω pF pF pF pF pF pF capacitance matching VR = 1 to 28 V − − 2.5 % 1996 May 03 2 Philips Semiconductors Product specification VHF variable capacitance diodes GRAPHICAL DATA BB909A; BB909B MBE873 handbook, full pagewidth 50 Cd (pF) 40 30 20 10 0 10 −1 f = 1 MHz; Tj = 25 °C. 1 10 VR (V) 10 2 Fig.2 Diode capacitance as a function of reverse voltage; typical values. 10 3 handbook, halfpage MLC816 10 3 handbook, halfpage MLC815 IR (nA) TC d (K−1) 102 10 4 10 0 50 T j ( C) o 100 10 5 10 1 1 10 VR (V) 102 Tj = 0 to 85 °C. Fig.4 Fig.3 Reverse current as a function of junction temperature; maximum values. Temperature coefficient of diode capacitance as a function of reverse voltage; typical values. 1996 May 03 3 Philips Semiconductors Product specification VHF variable capacitance diodes PACKAGE OUTLINE BB909A; BB909B (1) (2) 0.55 max 1.6 max 25.4 min 3.04 max 25.4 min MBC040 Dimensions in mm. (1) Cathode side indicated by a green band on a black body (BB909A and BB909B). (2) Additional red band (BB909A only). Fig.5 SOD68 (DO-34). DEFINITIONS Data sheet status Objective specification Preliminary specification Product specification Limiting values Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended periods may affect device reliability. Application information Where application information is given, it is advisory and does not form part of the specification. LIFE SUPPORT APPLICATIONS These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. Philips customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such improper use or sale. This data sheet contains target or goal specifications for product development. This data sheet contains preliminary data; supplementary data may be published later. This data sheet contains final product specifications. 1996 May 03 4