Now Offering
RoHs Compliant
Equivalent Parts
Low Voltage/Low Rs Silicon
Hyperabrupt Varactor Diode
Features
•
Low Series Resistance at Low Tuning Voltages
•
High Capacitance Ratio at Low Tuning Voltages
•
Surface Mount Plastic Packages : SC-79,
SOD-323, SC-70 ( 3L )
•
SPC Process for Superior C vs V Repeatability
•
Lead-Free (RoHS Compliant) equivalents
available with 260 °C reflow compatibility
SC-70 (3L)
MA4ST1300 Series
V2
SOD-323
SC-79
Description and Applications
M/A-COM’s MA4ST1300 series is a highly
repeatable, UHCVD/ion-implanted, hyperabrupt
silicon tuning varactor in cost effective surface
mount packages. This series of varactors is
designed for high capacitance ratio, and high Q for
low battery voltage operation. It is efficient for wide
band tuning and low phase noise applications where
the supply voltage is limited to 5 volts or less. The
Varactors are offered as Singles in SC-79 and
SOD-323 along with a Common Cathode version
offered in the SC-70, 3 Lead. These diodes are
offered with standard Sn/Pb plating, as well as with
100% matte Sn plating on our RoHS compliant
equivalent devices.
Absolute Maximum Ratings @ T
A
= +25 °C
Parameter
Reverse Voltage
Forward Current
Operating Temperature
Storage Temperature
Absolute Maximum
12 V
50 mA
-55 °C to +125 °C
-55 °C to +125 °C
Please refer to Application Note M538 for surface mounting
instructions.
Product Information
Part Number
RoHS Compliant
Part Number
MA4ST1321-1279T
MA4ST1331-1279T
MA4ST1341-1279T
MA4ST1351-1279T
MA4ST1320-1141T
MA4ST1330-1141T
MA4ST1340-1141T
MA4ST1350-1141T
MA4ST1320-1146T
MA4ST1330-1146T
MA4ST1340-1146T
MA4ST1350-1146T
1
M/A-COM Inc. and its affiliates reserve the right to make changes to the
product(s) or information contained herein without notice. M/A-COM makes
no warranty, representation or guarantee regarding the suitability of its
products for any particular purpose, nor does M/A-COM assume any liability
whatsoever arising out of the use or application of any product(s) or
information.
Configuration
Single
Single
Single
Single
Single
Single
Single
Single
Common Cathode
Common Cathode
Common Cathode
Common Cathode
Package
SC-79
SC-79
SC-79
SC-79
SOD-323
SOD-323
SOD-323
SOD-323
SC-70 ( 3 L )
SC-70 ( 3 L )
SC-70 ( 3 L )
SC-70 ( 3 L )
Package Cp
(pF)
0.10
0.10
0.10
0.10
0.11
0.11
0.11
0.11
0.12
0.12
0.12
0.12
Package Ls
(nH)
0.6
0.6
0.6
0.6
1.2
1.2
1.2
1.2
1.3
1.3
1.3
1.3
MA4ST1321-1141T
MA4ST1331-1141T
MA4ST1341-1141T
MA4ST1351-1141T
MA4ST1321-1146T
MA4ST1331-1146T
MA4ST1341-1146T
MA4ST1351-1146T
•
North America
Tel: 800.366.2266 / Fax: 978.366.2266
•
Europe
Tel: 44.1908.574.200 / Fax: 44.1908.574.300
•
Asia/Pacific
Tel: 81.44.844.8296 / Fax: 81.44.844.8298
Visit www.macom.com for additional data sheets and product information.
Now Offering
RoHs Compliant
Equivalent Parts
Low Voltage/Low Rs Silicon
Hyperabrupt Varactor Diode
Electrical Specifications @ T
A
= +25 °C
Breakdown Voltage @ I
R
= 10µA, V
b
= 12 V Minimum
Reverse Leakage Current @ V
R
=10V, I
R
= 100 nA Maximum
Ct*
(pF)
Part Number
Min.
MA4ST1320/1321
MA4ST1330/1331
MA4ST1340/1341
MA4ST1350/1351
* Capacitance @ 1 MHz
48.0
22.0
15.0
9.5
V
R
= 0.5V
Nom.
55.0
25.0
18.0
11.0
Max.
63.0
30.0
21.0
13.5
V
R
= 4.0 V
Typ.
17.0
7.8
5.2
3.6
Capacitance Ratio
Rs**
(Ohm)
V
R
= 2.0 V
Typ.
0.32
0.45
0.57
0.78
Max.
0.5
0.7
0.85
1.0
MA4ST1300 Series
V2
Ct
0.5
/Ct
3.0
Typ.
3.37
3.31
3.4
3.2
** Series Resistance @ 100 MHz
Typical Capacitance vs. Biasing Voltage
60
MA4ST1320
Typical Capacitance Change vs. Temperature
4%
50
% of Capacitance Change
(relative to 25 C)
Capacitance (pF)
MA4ST1330
2%
40
30
20
10
0
0
1
2
3
4
5
Biasing Voltage (V)
MA4ST1340
0%
MA4ST1350
-2%
-4%
-40
-15
10
35
60
85
Temperature (degree C)
Series Resistance vs Biasing Voltage
0.90
Series Resistance (Ohm)
0.80
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.00
0.0
1.0
2.0
Biasing Voltage (V)
3.0
4.0
MA4ST1320
MA4ST1330
MA4ST1340
MA4ST1350
2
M/A-COM Inc. and its affiliates reserve the right to make changes to the
product(s) or information contained herein without notice. M/A-COM makes
no warranty, representation or guarantee regarding the suitability of its
products for any particular purpose, nor does M/A-COM assume any liability
whatsoever arising out of the use or application of any product(s) or
information.
•
North America
Tel: 800.366.2266 / Fax: 978.366.2266
•
Europe
Tel: 44.1908.574.200 / Fax: 44.1908.574.300
•
Asia/Pacific
Tel: 81.44.844.8296 / Fax: 81.44.844.8298
Visit www.macom.com for additional data sheets and product information.
Now Offering
RoHs Compliant
Equivalent Parts
Low Voltage/Low Rs Silicon
Hyperabrupt Varactor Diode
Typical Capacitance Values
MA4ST1320/1321
V
R
(V)
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
Ct (pF)
55.45
45.0
36.3
28.3
21.2
16.4
13.3
11.4
10.0
9.1
MA4ST1330/1331
Ct (pF)
25.4
20.7
16.8
13.2
10.1
7.9
6.4
5.5
4.8
4.4
MA4ST1340/1341
Ct (pF)
17.7
14.4
11.7
9.2
7.0
5.4
4.4
3.8
3.3
3.0
MA4ST1350/1351
Ct (pF)
11.4
9.3
7.6
5.9
4.5
3.4
2.9
2.5
2.2
2.0
MA4ST1300 Series
V2
Spice Model
Rs
Intrinsic Diode Model
N=N
Cj0=Cj0
Vj=Vj
Fc=0.5
BV=20 V
M=M
Parasitic Cp & Ls
Are per Above Table
Part Number
N
CJO
(pF)
Vj
(V)
M
Cp
MA4ST1320/1321
MA4ST1330/1331
MA4ST1340/1341
1.1
1.1
1.1
1.1
71.5
32.8
22.7
14.3
20.35
20.91
22.32
25.52
13.21
13.72
14.72
15.87
Cj
Ls
MA4ST1350/1351
3
M/A-COM Inc. and its affiliates reserve the right to make changes to the
product(s) or information contained herein without notice. M/A-COM makes
no warranty, representation or guarantee regarding the suitability of its
products for any particular purpose, nor does M/A-COM assume any liability
whatsoever arising out of the use or application of any product(s) or
information.
•
North America
Tel: 800.366.2266 / Fax: 978.366.2266
•
Europe
Tel: 44.1908.574.200 / Fax: 44.1908.574.300
•
Asia/Pacific
Tel: 81.44.844.8296 / Fax: 81.44.844.8298
Visit www.macom.com for additional data sheets and product information.
Now Offering
RoHs Compliant
Equivalent Parts
Low Voltage/Low Rs Silicon
Hyperabrupt Varactor Diode
Case Styles
SC-79 (SOD 523) (Case Style 1279)
Topview
Cathode
Mark
B
10
°
Max
Seating
Plane
F
E
MA4ST1300 Series
V2
DIM.
A
B
C
D
E
F
G
H
INCHES
MIN.
MAX.
0.020
0.003
0.006
0.010
0.059
0.043
0.011
0.037
0.028
0.008
0.010
0.014
0.067
0.051
0.012
MILLIMETERS
MIN.
MAX.
0.50
0.08
0.15
0.25
0.08
1.50
0.28
0.94
0.71
0.20
0.25
0.36
0.15
1.30
0.30
C
D
A
10
°
Max
G
H
0.043
1.09
SOD-323 (Case Style 1141)
C
F
D
G
E
INCHES
DIM.
A
B
C
D
E
F
G
H
MIN.
0.010
0.003
0.063
0.045
0.091
MAX.
0.043
0.004
0.008
0.016
0.006
0.075
0.057
0.106
H
A
B
MILLIMETERS
MIN.
MAX.
1.1
0.1
0.2
0.25
0.4
0.08
0.15
1.6
1.9
1.15
1.45
2.3
2.7
SC-70, 3 Lead (Case Style 1146)
A
E
J
H
INCHES
DIM.
A
B
C
D
E
F
G
H
J
MIN.
0.071
0.045
0.071
0.047
0.010
0.031
0.000
0.004
0.004
MAX.
0.087
0.053
0.094
0.057
0.016
0.039
0.004
0.007
0.010
10
°
M A X .
C
B
G
F
D
MILLIMETERS
MIN.
MAX.
1.80
2.20
1.15
1.35
1.80
2.40
1.19
1.45
0.25
0.41
0.80
1.00
0.00
0.10
0.10
0.10
0.18
0.25
4
M/A-COM Inc. and its affiliates reserve the right to make changes to the
product(s) or information contained herein without notice. M/A-COM makes
no warranty, representation or guarantee regarding the suitability of its
products for any particular purpose, nor does M/A-COM assume any liability
whatsoever arising out of the use or application of any product(s) or
information.
•
North America
Tel: 800.366.2266 / Fax: 978.366.2266
•
Europe
Tel: 44.1908.574.200 / Fax: 44.1908.574.300
•
Asia/Pacific
Tel: 81.44.844.8296 / Fax: 81.44.844.8298
Visit www.macom.com for additional data sheets and product information.
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