DISCRETE SEMICONDUCTORS DATA SHEET M3D319 BB181 VHF variable capacitance diode Product specification 1998 Nov 26 Philips Semiconductors Product specification FEATURES DESCRIPTION • Excellent linearity The BB181 is a variable capacitance diode, fabricated in planar technology and encapsulated in the SOD523 (SC-79) ultra small plastic SMD package. • Ultra small plastic SMD package • C28: 1 pF; ratio: 14. APPLICATIONS • Electronic tuning in satellite tuners PIN • Voltage controlled oscillators (VCO). handbook, 1 2 columns 2 MBK441 Marking code: N. Orientation of marking code as shown. Cathode side indicated by a bar. PINNING • Tuneable coupling BB181 N VHF variable capacitance diode DESCRIPTION 1 cathode 2 anode Fig.1 Simplified outline (SOD523; SC-79) and symbol. LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 134). SYMBOL PARAMETER MIN. MAX. UNIT VR continuous reverse voltage − 30 V IF continuous forward current − 20 mA Tstg storage temperature −55 +150 °C Tj operating junction temperature −55 +150 °C ELECTRICAL CHARACTERISTICS Tj = 25 °C unless otherwise specified. SYMBOL IR PARAMETER reverse current CONDITIONS MIN. MAX. UNIT VR = 30 V; see Fig.3 − 10 nA VR = 30 V; Tj = 85 °C; see Fig.3 − 200 nA rs diode series resistance f = 470 MHz; note 1 − 3 Ω Cd diode capacitance VR = 0.5 V; f = 1 MHz; see Figs 2 and 4 8 17 pF VR = 28 V; f = 1 MHz; see Figs 2 and 4 0.7 1.055 pF C d ( 0.5V ) ---------------------C d ( 28V ) capacitance ratio f = 1 MHz 12 16 Note 1. VR is the value at which Cd = 9 pF. 1998 Nov 26 2 Philips Semiconductors Product specification VHF variable capacitance diode BB181 GRAPHICAL DATA MBE872 15 handbook, full pagewidth Cd (pF) 10 5 0 10 −1 1 10 10 2 VR (V) f = 1 MHz; Tj = 25 °C. Fig.2 Diode capacitance as a function of reverse voltage; typical values. MLC816 10 3 handbook, halfpage TC d (K−1) IR (nA) 10 4 102 10 MLC815 10 3 handbook, halfpage 0 50 o T j ( C) 10 5 10 1 100 1 10 VR (V) Tj = 0 to 85 °C. Fig.4 Fig.3 1998 Nov 26 Reverse current as a function of junction temperature; maximum values. 3 Temperature coefficient of diode capacitance as a function of reverse voltage; typical values. 102 Philips Semiconductors Product specification VHF variable capacitance diode BB181 PACKAGE OUTLINE Plastic surface mounted package; 2 leads SOD523 A c v M A HE A D 1 E 0 2 (1) IEC SOD523 1 mm DIMENSIONS (mm are the original dimensions) bp OUTLINE VERSION 0.5 scale UNIT A bp c D E HE v mm 0.7 0.5 0.35 0.25 0.2 0.1 1.3 1.1 0.9 0.7 1.7 1.5 0.15 Note 1. The marking band indicates the cathode. REFERENCES JEDEC EIAJ EUROPEAN PROJECTION SC-79 ISSUE DATE 98-04-28 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. 1998 Nov 26 4 Philips Semiconductors Product specification VHF variable capacitance diode BB181 NOTES 1998 Nov 26 5 Philips Semiconductors Product specification VHF variable capacitance diode BB181 NOTES 1998 Nov 26 6 Philips Semiconductors Product specification VHF variable capacitance diode BB181 NOTES 1998 Nov 26 7 Philips Semiconductors – a worldwide company Argentina: see South America Australia: 34 Waterloo Road, NORTH RYDE, NSW 2113, Tel. +61 2 9805 4455, Fax. +61 2 9805 4466 Austria: Computerstr. 6, A-1101 WIEN, P.O. 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