DISCRETE SEMICONDUCTORS DATA SHEET alfpage M3D049 BB158 VHF variable capacitance diode Product specification Supersedes data of May 1996 1999 Jun 10 Philips Semiconductors Product specification VHF variable capacitance diode BB158 FEATURES • Excellent linearity • Very small plastic SMD package handbook, 4 columns k a • C28: 2.6 pF; ratio: 15 • Low series resistance. MAM130 APPLICATIONS Marking code: PH. Cathode side indicated by a bar. • Electronic tuning in VHF television tuners, band B up to 460 MHz Fig.1 Simplified outline (SOD323) and symbol. • VCO. DESCRIPTION The BB158 is variable capacitance diode, fabricated in planar technology, and encapsulated in the SOD323 very small plastic SMD package. The matched type, BB148 has the same specification. 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 = 30 V; see Fig.3 − − 10 nA VR = 30 V; Tj = 85 °C; see Fig.3 − − 200 nA rs diode series resistance f = 100 MHz; note 1 − − 0.9 Ω Cd diode capacitance VR = 1 V; f = 1 MHz; see Figs 2 and 4 36.8 − 41.8 pF VR = 28 V; f = 1 MHz; see Figs 2 and 4 2.4 − 2.75 pF f = 1 MHz 14.5 − − C d ( 1V ) -------------------C d ( 28V ) capacitance ratio Note 1. VR is the value at which Cd = 12 pF. 1999 Jun 10 2 Philips Semiconductors Product specification VHF variable capacitance diode BB158 GRAPHICAL DATA MLC266 50 handbook, full pagewidth Cd (pF) 40 30 20 10 0 10 1 1 10 10 2 V R (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) 102 Tj = 0 to 85 °C. Fig.4 Fig.3 1999 Jun 10 Reverse current as a function of junction temperature; maximum values. 3 Temperature coefficient of diode capacitance as a function of reverse voltage; typical values. Philips Semiconductors Product specification VHF variable capacitance diode BB158 PACKAGE OUTLINE handbook, full pagewidth 1.00 max 1.35 1.15 0.25 0.10 0.40 0.25 0.55 0.40 , , 0.05 max MBC672 - 1 A 1.8 1.6 2.7 2.3 Dimensions in mm. The bar indicates the cathode. 0.2 M A Fig.5 SOD323. 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. 1999 Jun 10 4