Document Number: 85555 For technical questions, contact: DiodesSSP@vishay.com www.vishay.com
Rev. 1.9, 19-Nov-09 1
Dual Varicap Diode
BB814
Vishay Semiconductors
MECHANICAL DATA
Case: SOT23
Weight: approx. 8.1 mg
Packaging codes/options:
GS18/10K per 13" reel (8 mm tape), 10K/box
GS08/3K per 7" reel (8 mm tape), 15K/box
FEATURES
• Silicon epitaxial planar diode
• Common cathode
• AEC-Q101 qualified
• Compliant to RoHS directive 2002/95/EC and
in accordance to WEEE 2002/96/EC
APPLICATIONS
• Tuning of separate resonant circuits
• Push-pull circuits in FM range
• Especially for car radios
Note
(1) Tamb = 25 °C, unless otherwise specified
Note
(1) Tamb = 25 °C, unless otherwise specified
Notes
(1) Tamb = 25 °C, unless otherwise specified
(2) In the reverse voltage range of VR = (2 V to 8 V) for diodes 4 taped in sequence the max. deviation is 3 %
18108
12
3
PARTS TABLE
PART TYPE DIFFERENTIATION ORDERING CODE TYPE MARKING REMARKS
BB814-1 VRRM = 20 V, CD2 = 43 pF to 45.5 pF BB814-1-GS18 or BB814-1-GS08 SH1 Tape and reel
BB814-2 VRRM = 20 V, CD2 = 44.5 pF to 46.5 pF BB814-2-GS18 or BB814-2-GS08 SH2 Tape and reel
ABSOLUTE MAXIMUM RATINGS (1)
PARAMETER TEST CONDITIONS SYMBOL VALUE UNIT
Repetitive peak reverse voltage VRRM 20 V
Reverse voltage VR18 V
Forward current IF50 mA
THERMAL CHARACTERISTICS (1)
PARAMETER TEST CONDITIONS SYMBOL VALUE UNIT
Junction temperature Tj125 °C
Storage temperature range Tstg - 55 to + 150 °C
ELECTRICAL CHARACTERISTICS (1)
PARAMETER TEST CONDITIONS PART SYMBOL MIN. TYP. MAX. UNIT
Reverse current VR = 16 V IR20 nA
VR = 16 V, Tj = 60 °C IR200 nA
Diode capacitance (2)
VR = 2 V BB814-1 CD2 43 45.5 pF
BB814-2 CD2 44.5 46.5 pF
VR = 8 V BB814-1 CD8 19.1 21.95 pF
BB814-2 CD8 19.75 22.70 pF
Capacitance ratio VR = 2 V, 8 V, f = 1 MHz CD2/CD8 2.05 2.25
Series resistance CD = 38 pF, f = 100 MHz Rs0.5 Ω
www.vishay.com For technical questions, contact: DiodesSSP@vishay.com Document Number: 85555
2Rev. 1.9, 19-Nov-09
BB814
Vishay Semiconductors Dual Varicap Diode
PACKAGE DIMENSIONS in millimeters (inches): SOT23
Document no.: 6.541-5014.01-4
Rev. 8 - Date: 23. Sep. 2009
17418
0.1 (0.004) max.
0.45 (0.018)
0.35 (0.014)
0.45 (0.018)
0.35 (0.014)
3.1 (0.122)
2.8 (0.110)
0.35 (0.014)
0.45 (0.018)
1.43 (0.056)
1.20 (0.047)
1 (0.039)
0.9 (0.035)
3
2
1
0.9 (0.035)
0.7 (0.028)
2 (0.079)
0.95 (0.037)
0.95 (0.037)
2.6 (0.102)
2.35 (0.093)
0.175 (0.007)
0.098 (0.004)
1.15 (0.045)
0.9 (0.035)
0° to 8°
0.2 (0.008)
0.5 (0.020)
0.3 (0.012)
0.550 ref. (0.022 ref.)
Mounting pad layout
1 (0.039)
0.9 (0.035)
Document Number: 91000 www.vishay.com
Revision: 18-Jul-08 1
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