MA4ST200 Datasheet, PDF (2/3 Pages) Tyco Electronics – Low-Voltage / High Q Si Hyperabrupt Varactors

Low-Voltage / High Q Si Hyperabrupt Varactors
Electrical Specifications @ T_A = +25°C
Breakdown Voltage @ I_R = 10 µA, V_b = 12 V Minimum
Reverse Leakage Current @ V_R = 10 V, I_R = 100 nA Maximum
Part
Number
C_T
(pF)
f = 1 MHz, V_R = 2.0V
Min.
Nom.
Max.
C_T
(pF)
f = 1 MHz, V_R = 4.0V
Max.
MA4ST230
4.5
5.0
6.0
3.1
MA4ST240
3.0
3.5
4.2
2.3
MA4ST250
2.3
2.7
3.5
1.8
MA4ST200 Series
Capacitance Ratio
C_T-0.5/C_T-4.0
Typ.
3.5
3.5
3.5
Q Factor
f = 50 MHz, V_R = 2.0V
Min.
400
450
450
Absolute Maximum Rating
Parameter
Absolute Maximum
Reverse Voltage
12 Volts
Forward Current
50 mA
Total Power Dissipation
250 mW
Junction Operating Temp.
-55°C to +125°C
Storage Temperature
-55°C to +125°C
Typical Performance Curves
TOTAL CAPACITANCE vs REVERSE VOLTAGE at 1 MHz
100
MA4ST230
10
MA4ST240
1
MA4ST250
0.1
0.1
1
10
REVERSE VOLTAGE (V)
NOMINAL CHANGE in CAPACITANCE with
TEMPERATURE
700
600
500
400
300
200
0
2
4
6
8
REVERSE VOLTAGE (V)
NOMINAL Q at 50 MHz vs REVERSE VOLTAGE
1.00E+03
MA4ST250
MA4ST240
1.00E+02
1.00E-01
MA4ST230
1.00E+00
REVERSE VOLTAGE (V)
1.00E+01
Ordering Information
These varactors are available in the three case styles shown.
When ordering, specify the desired case style by adding the
case designation (287 for SOT-23, 1146 for SOT-323, 1141
for SOD-323) as a suffix to the model number. For example,
MA4ST230-1141 specifies the MA4ST230 varactor in the
SOD-323 package. The model number indicated is for a single
varactor. Common cathode pairs are available in SOT-23
package, and are specified by adding “CK” to the end of the
model number. For example MA4ST230CK-287 specifies the
MA4ST230 varactor in common cathode pairs.
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Specifications subject to change without notice.