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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
FEATURES * Excellent linearity * Very small plastic SMD package * C28: 2.6 pF; ratio: 15 * Low series resistance.
MAM130
BB158
handbook, 4 columns
k
a
APPLICATIONS * Electronic tuning in VHF television tuners, band B up to 460 MHz * 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. ELECTRICAL CHARACTERISTICS Tj = 25 C; unless otherwise specified. SYMBOL IR rs Cd PARAMETER reverse current diode series resistance diode capacitance capacitance ratio
Marking code: PH. Cathode side indicated by a bar.
Fig.1 Simplified outline (SOD323) and symbol.
LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 134). SYMBOL VR IF Tstg Tj PARAMETER continuous reverse voltage continuous forward current storage temperature operating junction temperature - - -55 -55 MIN. MAX. 30 20 +150 +125 V mA C C UNIT
CONDITIONS VR = 30 V; see Fig.3 VR = 30 V; Tj = 85 C; see Fig.3 f = 100 MHz; note 1 VR = 1 V; f = 1 MHz; see Figs 2 and 4 VR = 28 V; f = 1 MHz; see Figs 2 and 4 f = 1 MHz
MIN. - - - 36.8 2.4 14.5
TYP. - - - - - -
MAX. 10 200 0.9 41.8 2.75 -
UNIT nA nA pF pF
C d ( 1V ) -------------------C d ( 28V ) Note
1. VR is the value at which Cd = 12 pF.
1999 Jun 10
2
Philips Semiconductors
Product specification
VHF variable capacitance diode
GRAPHICAL DATA
50
BB158
MLC266
handbook, full pagewidth
Cd (pF) 40
30
20
10
0 10 1 f = 1 MHz; Tj = 25 C.
1
10
V R (V)
10 2
Fig.2 Diode capacitance as a function of reverse voltage; typical values.
10 3 handbook, halfpage
MLC816
10 3 handbook, halfpage
MLC815
IR (nA)
TC d (K-1)
102
10 4
10
0
50
T j ( C)
o
100
10 5 10 1
1
10
VR (V)
102
Tj = 0 to 85 C.
Fig.4 Fig.3 Reverse current as a function of junction temperature; maximum values.
Temperature coefficient of diode capacitance as a function of reverse voltage; typical values.
1999 Jun 10
3
Philips Semiconductors
Product specification
VHF variable capacitance diode
PACKAGE OUTLINE
BB158
handbook, full pagewidth
1.00 max
0.25 0.10
1.35 1.15
0.40 0.25
Dimensions in mm. The bar indicates the cathode.
, ,
0.55 0.40
0.05 max
MBC672 - 1
A
1.8 1.6 2.7 2.3 0.2 M A
Fig.5 SOD323.
DEFINITIONS Data sheet status Objective specification Preliminary specification Product specification 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 This data sheet contains target or goal specifications for product development. This data sheet contains preliminary data; supplementary data may be published later. This data sheet contains final product specifications.

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