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Silicon Tuning Diode
• For SAT tuners
• High capacitance ratio
• Low series resistance
• Excellent uniformity and matching due to
"in-line" matching assembly procedure
• Pb-free (RoHS compliant) package
BB837
BB857
BB857-02V
Type Package Configuration Marking
BB837
BB857*
BB857-02V
SOD323
SCD80
SC79
single
single
single
white M
OO
P
* Not for new design
Maximum Ratings at TA = 25 °C, unless otherwise specified
Parameter Symbol Value Unit
Diode reverse voltage VR30 V
Peak reverse voltage
R ≥ 5kΩ
VRM 35
Forward current IF20 mA
Operating temperature range Top -55 ...150 °C
Storage temperature TSt
g
-55 ...150
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Electrical Characteristics at TA = 25 °C, unless otherwise specified
Parameter Symbol Values Unit
min. typ. max.
DC Characteristics
Reverse current
VR = 30 V
VR = 30 V, TA = 85 °C
IR
-
-
-
-
10
200
nA
AC Characteristics
Diode capacitance
VR = 1 V, f = 1 MHz
VR = 25 V, f = 1 MHz
VR = 28 V, f = 1 MHz
CT
6
0.5
0.45
6.6
0.55
0.52
7.2
0.65
-
pF
Capacitance ratio
VR = 1 V, VR = 25 V, f = 1 MHz
CT1/CT25 10.2 12 - -
Capacitance ratio
VR = 1 V, VR = 28 V, f = 1 MHz
CT1/CT28 9.7 12.7 -
Capacitance matching1)
VR = 1V ... 28V, f = 1 MHz, 7 diodes sequence
∆CT/CT- - 5 %
Series resistance
VR = 5 V, f = 470 MHz
rS- 1.5 - Ω
1For details please refer to Application Note 047
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Diode capacitance CT = ƒ (VR)
f = 1MHz
10 0 10 1 10 2
V
VR
0
1
2
3
4
5
6
7
8
pF
10
CT
Normalized diode capacitance
C(TA)/C(25°C)= ƒ(TA); f = 1MHz
-30 -10 10 30 50 70 °C 100
TA
0.975
0.98
0.985
0.99
0.995
1
1.005
1.01
1.015
1.02
1.025
-
1.035
CTA/C25
1V
2V
25V
28V
Reverse current IR = ƒ (TA)
VR = 28V
-30 -10 10 30 50 70 °C 100
TA
0
10
1
10
2
10
3
10
pA
IR
Reverse current IR = ƒ(VR)
TA = Parameter
10 0 10 1 10 2
V
VR
-1
10
0
10
1
10
2
10
3
10
pA
IR
28°C
60°C
80°C
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Package SC79
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Package SCD80
Package Outline
Foot Print
Marking Layout (Example)
±0.1
1.7
0.3
1
2
marking
Cathode
0.8
±0.1
10
˚
MAX.
±0.1
0.7
±0.1
1.3 7
˚
0.13
±0.05
+0.05
-0.03
±1.5
˚
0.2
M
A
A
±0.05
0.2
0.35
0.35
1.45
BAR63-02W
Type code
Cathode marking
Laser marking
0.7
20.2
0.9
0.4
8
4
1.45
2.5
Standard Reel with 2 mm Pitch
Cathode
marking
Cathode
marking
Standard Packing
Reel ø180 mm = 3.000 Pieces/Reel
Reel ø180 mm = 8.000 Pieces/Reel (2 mm Pitch)
Reel ø330 mm = 10.000 Pieces/Reel
2005, June
Date code
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Date Code marking for discrete packages with
one digit (SCD80, SC79, SC751)) CES-Code
1) New Marking Layout for SC75, implemented at October 2005.
.
Month 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014
01apAPapAPapAP
02bqBQbqBQbqBQ
03crCRcrCRcrCR
04dsDSdsDSdsDS
05et ETet ETet ET
06fuFUfuFUfuFU
07gvGVgvGVgvGV
08hxHXhxHXhxHX
09jyJYjyJYjyJY
10kzKZkzKZkzKZ
11l 2L4l 2L4 l 2L4
12n3N5n3N5n3N5
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Package SOD323
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Edition 2009-11-16
Published by
Infineon Technologies AG
81726 Munich, Germany
2009 Infineon Technologies AG
All Rights Reserved.
Legal Disclaimer
The information given in this document shall in no event be regarded as a guarantee
of conditions or characteristics. With respect to any examples or hints given herein,
any typical values stated herein and/or any information regarding the application of
the device, Infineon Technologies hereby disclaims any and all warranties and
liabilities of any kind, including without limitation, warranties of non-infringement of
intellectual property rights of any third party.
Information
For further information on technology, delivery terms and conditions and prices,
please contact the nearest Infineon Technologies Office (<www.infineon.com>).
Warnings
Due to technical requirements, components may contain dangerous substances.
For information on the types in question, please contact the nearest Infineon
Technologies Office.
Infineon Technologies components may be used in life-support devices or systems
only with the express written approval of Infineon Technologies, if a failure of such
components can reasonably be expected to cause the failure of that life-support
device or system or to affect the safety or effectiveness of that device or system.
Life support devices or systems are intended to be implanted in the human body or
to support and/or maintain and sustain and/or protect human life. If they fail, it is
reasonable to assume that the health of the user or other persons may be
endangered.
