Download: DATA SHEET BB148 VHF variable capacitance diode

DISCRETE SEMICONDUCTORS DATA SHEET handbook, halfpage M3D049 BB148 VHF variable capacitance diode Product specification 1996 May 03 Supersedes data of December 1994 File under Discrete Semiconductors, SC01 FEATURES • Excellent linearity • Excellent matching to 1% DMA • Very small plastic SMD package handbook, 4 columnska• C28: 2.6 pF; ratio: 15 • Low series resistance. MAM130 APPLICATIONS • Electronic tuning in VHF television tuners, band B up to 460 MHz Marking code: P8. • Cathode side indicated by a yellow bar.VCO. Fig.1 Simplified outline (SOD323) and symbol. DESCRIPTION The BB148 is variab...
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DISCRETE SEMICONDUCTORS

DATA SHEET

handbook, halfpage M3D049

BB148 VHF variable capacitance diode

Product specification 1996 May 03 Supersedes data of December 1994 File under Discrete Semiconductors, SC01,

FEATURES

• Excellent linearity • Excellent matching to 1% DMA • Very small plastic SMD package handbook, 4 columnska• C28: 2.6 pF; ratio: 15 • Low series resistance. MAM130

APPLICATIONS

• Electronic tuning in VHF television tuners, band B up to 460 MHz Marking code: P8. • Cathode side indicated by a yellow bar.VCO. Fig.1 Simplified outline (SOD323) and symbol.

DESCRIPTION

The BB148 is variable capacitance diode, fabricated in planar LIMITING VALUES technology, and encapsulated in the In accordance with the Absolute Maximum Rating System (IEC 134). SOD323 very small plastic SMD SYMBOL PARAMETER MIN. MAX. UNIT package. VR continuous reverse voltage − 30 V The excellent matching performance is achieved by gliding matching and a IF continuous forward current − 20 mA direct matching assembly procedure. Tstg storage temperature −55 +150 °C The diodes are delivered on tape in Tj operating junction temperature −55 +125 °Cseveral matched groups and are also available unmatched upon request. The unmatched type, BB158 has the same specification. ELECTRICAL CHARACTERISTICS Tj = 25 °C; unless otherwise specified.

SYMBO

PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

L

IR reverse current 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 C capacitance ratio f = 1 MHz 14.5 − − -d-(-1-V-)- Cd (28V) ∆C capacitance matching VR = 0.5 to 28 V; in a sequence of 4 diodes (gliding) − − 1 % -d- C VR = 0.5 to 28 V; in a sequence of 20 diodes (gliding) − − 2 %d Note 1. VR is the value at which Cd = 12 pF. 1996 May 03 2, GRAPHICAL DATA MLC266 Cd (pF) 101110 V (V) 10

R

f = 1 MHz; Tj = 25 °C. Fig.2 Diode capacitance as a function of reverse voltage; typical values. MLC816 MLC81533handboo1k,0 halfpage handboo 1k0, halfpage I TCR d (nA) (K−1) 102 10 10 10 0 50 o 100 1011102T( 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 0.55 0.40 1.00 max 0.25 0.10 0.05 max MBC672 - 1

A

1.35 0.40 1.15 0.25 1.8 1.6 2.7 2.3 0.2MADimensions in mm. The (yellow) marking bar indicates the cathode. 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. 1996 May 03 4]
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