DISCRETE SEMICONDUCTORS DATA SHEET alfpage M3D088 BBY39 UHF variable capacitance double diode Product specification Supersedes data of November 1993 1996 May 03 Philips Semiconductors Product specification UHF variable capacitance double diode BBY39 FEATURES • Excellent linearity • Small plastic SMD package • C28: 1.9 pF; ratio: 8.3. handbook, halfpage 3 3 APPLICATIONS • Electronic tuning in UHF television tuners 1 2 • VCO. 1 2 MAM169 DESCRIPTION The BBY39 is a variable capacitance double diode with a common cathode, fabricated in planar technology, and encapsulated in the SOT23 small plastic SMD package. Marking code: S12. Fig.1 Simplified outline (SOT23), pin configuration 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 +125 °C ELECTRICAL CHARACTERISTICS Tj = 25 °C; unless otherwise specified. SYMBOL IR PARAMETER reverse current CONDITIONS MIN. TYP. MAX. UNIT VR = 28 V; see Fig.3 − − 10 nA VR = 28 V; Tj = 85 °C; see Fig.3 − − 200 nA rs diode series resistance f = 470 MHz; note 1 − − 1.2 Ω Cd diode capacitance VR = 1 V; f = 1 MHz; see Figs 2 and 4 − 16.5 − pF VR = 28 V; f = 1 MHz; see Figs 2 and 4 1.6 − 2 pF f = 1 MHz − − C d ( 1V ) -------------------C d ( 28V ) capacitance ratio 8 Note 1. VR is the value at which Cd = 9 pF. 1996 May 03 2 Philips Semiconductors Product specification UHF variable capacitance double diode BBY39 GRAPHICAL DATA MBE874 20 handbook, full pagewidth Cd (pF) 16 12 8 4 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 0 50 o T j ( C) 10 5 10 1 100 Fig.4 Fig.3 MLC815 10 3 handbook, halfpage Reverse current as a function of junction temperature; maximum values. 1996 May 03 3 1 10 VR (V) 102 Temperature coefficient of diode capacitance as a function of reverse voltage; typical values. Philips Semiconductors Product specification UHF variable capacitance double diode BBY39 PACKAGE OUTLINE 3.0 2.8 handbook, full pagewidth 0.150 0.090 0.55 0.45 B 1.9 0.95 2 1 0.1 max 10 o max 0.2 M A A 1.4 1.2 2.5 max 10 o max 3 1.1 max 30 o max 0.48 0.38 0.1 M A B MBC846 TOP VIEW Dimensions in mm. Fig.5 SOT23. 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