MA4ST1200 Series
Low Tuning 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 avail-
able with 260°C reflow compatibility
SC-70 (3 lead)
SOD-323
Rev. V8
SC-79
Description
M/A-COM’s MA4ST1200 series is a highly repeat-
able, UHCVD/ion-implanted, hyperabrupt silicon tun-
ing varactor in a cost effective surface mount pack-
age. 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 application 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
1,2
@ T
A
=+25 °C (Unless Otherwise Noted)
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
1. Operation of this device above any one of these parameters
may cause permanent damage.
2. Please refer to application note M538 for surface mounting
instructions
Part Number
RoHs Compliant Part Number
MAVR-001230-12790T
MAVR-001240-12790T
MA4ST1231-1141T
MA4ST1241-1141T
Configuration
Single
Single
Single
Single
Common Cathode
Common Cathode
Package
SC-79
SC-79
SOD-323
SOD-323
SC-70 (3L)
SC-70 (3L)
Package Cp
(pF)
0.10
0.10
0.11
0.11
0.12
0.12
Package Ls
(nH)
0.6
0.6
1.2
1.2
1.3
1.3
MA4ST1230CK-1146T
MA4ST1240CK-1146T
MA4ST1231CK-1146T
MA4ST1241CK-1146T
1
Specifications subject to change without prior notification
ADVANCED:
Data Sheets contain information regarding a product M/A-COM Technology Solutions
•
North America
Tel: 800.366.2266 •
Europe
Tel: +353.21.244.6400
is considering for development. Performance is based on target specifications, simulated results,
•
India
Tel: +91.80.4155721
•
China
Tel: +86.21.2407.1588
and/or prototype measurements. Commitment to develop is not guaranteed.
Visit www.macomtech.com for additional data sheets and product information.
PRELIMINARY:
Data Sheets contain information regarding a product M/A-COM Technology
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available.
M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.
MA4ST1200 Series
Low Tuning Voltage / Low Rs Silicon Hyperabrupt
Varactor Diode
Electrical Specifications @ T
A
= +25 °C
Breakdown Voltage @ I
R
= 10
μ
A, V
b
= 12 V Minimum
Reverse Leakage Current @ V
R
=10V, I
R
= 100 nA Maximum
Ct
(pF)
2
V
R
= 0.5V
Typ.
MA4ST1230
MA4ST1240
1.
2.
3.
MA4ST1231
MAVR-001230-XXXXX
MA4ST1241
MAVR-001240-XXXXX
10.1
7.1
Rev. V8
Part No.
Base
1
RoHs Compliant
Part Number Base
1
Min.
4.2
3.0
Capacitance
Ratio
V
R
= 4.0V
Max.
5.6
3.8
Rs
3
(Ohm)
V
R
= 2.0 V
Typ.
0.40
0.40
V
R
= 2.0V
Nom.
4.7
3.4
Ct
0.5
/Ct
4.0
Typ.
3.67
3.46
Typ.
2.75
2.05
Max.
0.70
0.70
The prefix defines package style, configuration and packaging information. Contact representative for complete part identification.
Capacitance @ 1 MHz
Series Resistance @ 100 MHz
Typical Capacitance vs. Biasing Voltage
12
10
Capacitance (pF)
MA4ST1230/1231 /MAVR-001230
Typical Capacitance Change vs. Temperature
4%
% of Capacitance Change
(relative to 25 C)
5
2%
8
MA4ST1240/1241 /MAVR-001240
6
4
2
0
0
1
2
3
4
Biasing Voltage (V)
0%
-2%
-4%
-40
-15
10
35
60
85
Temperature (degree C)
Typical Rs vs Biasing Voltage
1.00
MA4ST1230/1231 MAVR-001230
Series Resistance (Ohm)
0.80
MA4ST1240/1241 / MAVR-001240
0.60
0.40
0.20
0.00
0.0
0.5
1.0
1.5
2.0
2.5
3.0
Biasing Voltage (V)
2
Specifications subject to change without prior notification
ADVANCED:
Data Sheets contain information regarding a product M/A-COM Technology Solutions
•
North America
Tel: 800.366.2266 •
Europe
Tel: +353.21.244.6400
3
is considering for development. Performance is based on target specifications, simulated results,
•
India
Tel: +91.80.4155721
•
China
Tel: +86.21.2407.1588
and/or prototype measurements. Commitment to develop is not guaranteed.
Visit www.macomtech.com for additional data sheets and product information.
PRELIMINARY:
Data Sheets contain information regarding a product M/A-COM Technology
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available.
M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.
MA4ST1200 Series
Low Tuning Voltage / Low Rs Silicon Hyperabrupt
Varactor Diode
Typical Capacitance Values
MA4ST1230
V
R
(V)
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
Rev. V8
Spice Model
MA4ST1240
Ct (pF)
7.016
5.424
4.213
Cj
Cp
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
Ct (pF)
10.170
7.839
6.062
4.840
4.053
3.527
3.155
2.877
2.661
2.488
3.370
Ls
2.829
2.466
2.208
2.016
1.865
1.746
Part Number
MA4ST1230
MA4ST1240
N
1.1
1.1
CJO
(pF)
12.7
8.65
Vj
(V)
3.136
3.170
M
2.6
2.6
3
Specifications subject to change without prior notification
ADVANCED:
Data Sheets contain information regarding a product M/A-COM Technology Solutions
•
North America
Tel: 800.366.2266 •
Europe
Tel: +353.21.244.6400
is considering for development. Performance is based on target specifications, simulated results,
•
India
Tel: +91.80.4155721
•
China
Tel: +86.21.2407.1588
and/or prototype measurements. Commitment to develop is not guaranteed.
Visit www.macomtech.com for additional data sheets and product information.
PRELIMINARY:
Data Sheets contain information regarding a product M/A-COM Technology
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available.
M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.
MA4ST1200 Series
Low Tuning Voltage / Low Rs Silicon Hyperabrupt
Varactor Diode
Case Styles
SOD-323 (Case Style 1141)
INCHES
C
F
D
G
E
Rev. V8
MILLIMETERS
MIN.
⎯
⎯
⎯
0.25
0.07
1.6
1.14
2.3
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
MAX.
1.1
0.1
0.2
0.41
0.15
1.9
1.45
2.7
H
A
B
SC-70, 3 Lead (Case Style 1146)
A
DIM.
E
J
H
INCHES
MIN.
MAX.
0.071
0.045
0.071
0.047
0.010
0.031
0.000
0.004
0.004
0.087
0.053
0.094
0.057
0.016
0.039
0.004
0.007
0.010
MILLIMETERS
MIN.
MAX.
1.80
1.14
1.80
1.19
0.25
0.79
0.00
0.10
0.10
2.21
1.35
2.39
1.45
0.41
1.00
0.10
0.18
0.25
A
B
C
D
E
F
G
H
J
10
°
M A X .
C
B
G
F
D
SC-79 (Case Style 1279)
DIM.
A
B
C
D
E
F
G
H
I
INCHES
MIN.
MAX.
.0197
0.003
0.006
0.010
0.059
0.043
.0276
0.008
0.010
0.014
0.067
0.051
MILLIMETERS
MIN.
MAX.
0.50
0.07
0.15
0.25
1.50
1.09
0.70
0.20
0.25
0.35
1.70
1.30
.0098 nominal
.0433 nominal
.027
.035
0.250 nominal
1.10 nominal
0.68
0.89
Specifications subject to change without prior notification
4
ADVANCED:
Data Sheets contain information regarding a product M/A-COM Technology Solutions
•
North America
Tel: 800.366.2266 •
Europe
Tel: +353.21.244.6400
is considering for development. Performance is based on target specifications, simulated results,
•
India
Tel: +91.80.4155721
•
China
Tel: +86.21.2407.1588
and/or prototype measurements. Commitment to develop is not guaranteed.
Visit www.macomtech.com for additional data sheets and product information.
PRELIMINARY:
Data Sheets contain information regarding a product M/A-COM Technology
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available.
M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.
MA4ST1200 Series
Low Tuning Voltage / Low Rs Silicon Hyperabrupt
Varactor Diode
Mounting Information
The illustration indicates the recommended
mounting pad configuration for the SC-79, SOT-323
and SOD-323 packages. Solder paste containing
flux should be screened onto the pads to a thickness
of 0.005- 0.007 inches. The plastic package is
placed in position, firmly adhering to the solder
paste.
Permanent attachment is performed by a reflow
soldering procedure during which the tab
temperature does not exceed +275
°C
and the body
temperature does not exceed +250
°C,
for standard
models and +260
°C
for the RoHS compliant
devices.
Please refer to Application Note M538 for surface
mounting instructions.
0.020
0.50
Rev. V8
SC-79 (Case Style 1279)
0.020
0.50
0.053
1.35
Dimenstions: inches
mm
SOD-323 (Case Style 1141)
0.030
0.80
SC-70, 3 Lead (Case Style 1146)
0.030
0.80
0.030
0.80
0.030
0.80
0.030
0.80
.090
2.2
Dimenstions: inches
mm
0.075
1.9
0.030
0.80
0.030
0.80
Dimenstions: inches
mm
5
Specifications subject to change without prior notification
ADVANCED:
Data Sheets contain information regarding a product M/A-COM Technology Solutions
•
North America
Tel: 800.366.2266 •
Europe
Tel: +353.21.244.6400
is considering for development. Performance is based on target specifications, simulated results,
•
India
Tel: +91.80.4155721
•
China
Tel: +86.21.2407.1588
and/or prototype measurements. Commitment to develop is not guaranteed.
Visit www.macomtech.com for additional data sheets and product information.
PRELIMINARY:
Data Sheets contain information regarding a product M/A-COM Technology
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available.
M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.
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