KV1851ETR [TOKO]
VARIABLE CAPACITANCE DIODE; 变容二极管
| 型号： | KV1851ETR |
| 厂家： | 
TOKO, INC |
| 描述： | VARIABLE CAPACITANCE DIODE |
| 文件： | 总4页 (文件大小：28K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
KV1851E
VARIABLE CAPACITANCE DIODE
APPLICATIONS
FEATURES
■ UHF Communications Equipment
■ Voltage Controlled Oscillator
■ Very Small URD Surface Mount Package
■ Very Low Series Resistance
■ 900 MHz Communications Systems
■ Large Capacitance Ratio (A = 3.9 minimum)
■ Excellent Linearity (CV Curve)
■ Very Small Capacitance Deviation at Tape/Reel
DESCRIPTION
TheKV1851Eisavariablecapacitancediodedesignedfor
UHF applications.
The KV1851E is available in a very small URD Surface
Mount Package.
CLASSIFICATION
(Unit: pF)
RANK
KV1851E
1
2
3
C
MIN
25.00
26.90
26.50
28.50
28.10
30.00
C1
MAX
Note: Rank is determined after testing and marked on the
reel. All the diodes on a reel have the same rank, but rank
can not be specified when ordering.
ORDERING INFORMATION
KV1851E
Tape/Reel Code
TAPE/REEL CODE
TR: Tape Right
August 1999 TOKO, Inc.
Page 1
KV1851E
ABSOLUTE MAXIMUM RATINGS
Reverse Voltage....................................................... 18 V
Forward Current .................................................... 10 mA
Power Dissipation ................................................ 50 mW
Storage Temperature Range ................... -55 to +150 °C
Operating Temperature Range ...................-55 to +85 °C
ELECTRICAL CHARACTERISTICS
Test conditions: T = 25 °C
A
SYMBOL
PARAMETER
Reverse Voltage
TEST CONDITIONS
IREV = 10 µA
MIN
TYP
MAX UNITS
VREV
IREV
C1
16
V
Reverse Current
VREV = 10 V
5.00
30.00
7.00
1.7
nA
pF
pF
Ω
Diode Capacitance 1
Diode Capacitance 4
Series Resistance
Capacitance Ratio
VREV = 1 V, f = 1 MHz
VREV = 4 V, f = 1 MHz
VREV = 4 V, f = 100 MHz
C1 / C4
25.00
4.90
C4
RS
A
3.90
Note 1: Diode Capacitance measured with HP 4279A or equivalent instruments (at OSC level 20 mVrms, ± 5 mVrms).
Note 2: Series Resistance measured with HP 4191A or equivalent instruments.
Page 2
August 1999 TOKO, Inc.
KV1851E
TYPICAL PERFOMANCE CHARACTERISTICS
CAPACITANCE vs.
REVERSE VOLTAGE
QUALITY FACTOR vs.
REVERSE VOLTAGE
100
10
1
1000
100
10
T = +25 °C
A
T
= +25 °C
A
f = 1 MHz
f = 50 MHz
100 MHz
0
1
2
3
4
5
6
7
8
9 10
0
1
2
3
4
5
6
7
8
9 10
V
(V)
REV
V
REV
(V)
REVERSE CURRENT vs.
REVERSE VOLTAGE
SERIES RESISTANCE
vs. FREQUENCY
10
10
T
A
= +85°C
V
= 5 V
REV
= +25 °C
T
A
1
0.1
+55°C
+25°C
1
0.01
0.001
0.1
10
100
FREQUENCY (MHz)
1000
0
2
4
6
8
10 12 14 16
(V)
V
REV
C (T )
A
TEMPERATURE COEFFICIENT
vs. REVERSE VOLTAGE
vs. REVERSE VOLTAGE
C (25 °C)
1.08
1.06
1000
T
= -55 °C to +85 °C
A
f = 1 MHz
f = 1 MHz
T
A
= +85 °C
1.04
1.02
1.00
0.98
0.96
0.94
0.92
+55 °C
+25 °C
300
100
-15 °C
-55 °C
0
1
2
3
4
5
6
7
8
9 10
0
1
2
3
4
5
6
7
8
9 10
V
(V)
V
(V)
REV
REV
August 1999 TOKO, Inc.
Page 3
KV1851E
PACKAGE OUTLINE
Marking Information
URD
Product Code
E
2.3
Marking
0.8
Cathode Mark
Recommended Mount Pad
1.7
0.3
0.2 min
2.5 + 0.3
Dimensions are shown in millimeters
Tolerance: x.x = ± 0.2 mm (unless otherwise specified)
Toko America, Inc. Headquarters
1250 Feehanville Drive, Mount Prospect, Illinois 60056
Tel: (847) 297-0070 Fax: (847) 699-7864
TOKO AMERICA REGIONAL OFFICES
Midwest Regional Office
Toko America, Inc.
1250 Feehanville Drive
Mount Prospect, IL 60056
Tel: (847) 297-0070
Western Regional Office
Toko America, Inc.
2480 North First Street , Suite 260
San Jose, CA 95131
Tel: (408) 432-8281
Fax: (408) 943-9790
Eastern Regional Office
Toko America, Inc.
107 Mill Plain Road
Danbury, CT 06811
Tel: (203) 748-6871
Fax: (203) 797-1223
Semiconductor Technical Support
Toko Design Center
4755 Forge Road
Colorado Springs, CO 80907
Tel: (719) 528-2200
Fax: (719) 528-2375
Fax: (847) 699-7864
Visit our Internet site at http://www.tokoam.com
The information furnished by TOKO, Inc. is believed to be accurate and reliable. However, TOKO reserves the right to make changes or improvements in the design, specification or manufacture of its
products without further notice. TOKO does not assume any liability arising from the application or use of any product or circuit described herein, nor for any infringements of patents or other rights of
third parties which may result from the use of its products. No license is granted by implication or otherwise under any patent or patent rights of TOKO, Inc.
Page 4
August 1999 TOKO, Inc.
© 1999 Toko, Inc.
IC-xxx-KV1845E
0798O0.0K
Printed in the USA
All Rights Reserved
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