Download: DATA SHEET BB909A; BB909B VHF variable capacitance diodes

DISCRETE SEMICONDUCTORS

DATA SHEET

M3D051

BB909A; BB909B VHF variable capacitance diodes

Product specification 1996 May 03 Supersedes data of April 1992 File under Discrete Semiconductors, SC01,

FEATURES

• Excellent linearity • Matched to 2.5% handbook, halfpagke a • Hermetically sealed leaded glass SOD68 (DO-34) package MAM234 • C28: 2.9 pF; ratio: 13.5 • Low series resistance. Cathode side indicated by a green band on a black body (BB909A and BB909B). Additional red band (BB909A only). APPLICATIONS Fig.1 Simplified outline (SOD68; DO-34) and symbol. • Electronic tuning in VHF television tuners, band B up to 460 MHz • VCO. LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 134). DESCRIPTION SYMBOL PARAMETER MIN. MAX. UNIT The BB909A, BB909B are variable VR continuous reverse voltage − 30 V capacitance diodes, fabricated in IF continuous forward current − 20 mA planar technology, and encapsulated T storage temperature −55 +150 °C in hermetically sealed leaded glass stg SOD68 (DO-34) packages. Tj operating junction temperature −55 +100 °C ELECTRICAL CHARACTERISTICS Tj = 25 °C; unless otherwise specified. SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT IR reverse current VR = 28 V; see Fig.3 − − 10 nA VR = 28 V; Tj = 85 °C; see Fig.3 − − 200 nA rs diode series resistance f = 100 MHz; note 1 − − 0.9 Ω Cd diode capacitance see Figs 2 and 4 BB909A VR = 1 V; f = 1 MHz 31 − − pF VR = 3 V; f = 1 MHz − 23 − pF VR = 28 V; f = 1 MHz 2.6 − 3 pF BB909B VR = 1 V; f = 1 MHz 33.5 − − pF VR = 3 V; f = 1 MHz − 25 − pF VR = 28 V; f = 1 MHz 2.8 − 3.2 pF C capacitance ratio f = 1 MHz 12 − 15 -d-(-1-V-)- Cd (28V) ∆C capacitance matching VR = 1 to 28 V − − 2.5 % -d- Cd Note 1. VR is the value at which Cd = 30 pF. 1996 May 03 2, GRAPHICAL DATA MBE873 handbook, full pagewidth Cd (pF) 10 −1 1 10 VR (V) 10 f = 1 MHz; Tj = 25 °C. Fig.2 Diode capacitance as a function of reverse voltage; typical values. MLC816 MLC8153 handboo1k,0 halfpage handboo 1k0, halfpage I TCR d (nA) (K−1) 102 10 10 51012050 100 10 1 10 T ( o C) VR (V) j Tj = 0 to 85 °C. Fig.4 Temperature coefficient of diode Fig.3 Reverse current as a function of junction capacitance as a function of temperature; maximum values. reverse voltage; typical values. 1996 May 03 3, PACKAGE OUTLINE (1) (2) 0.55 max 1.6 3.04 max 25.4 min 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 This data sheet contains target or goal specifications for product development. Preliminary specification This data sheet contains preliminary data; supplementary data may be published later. Product specification This data sheet contains final product specifications. 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. 1996 May 03 4]

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