DATA SHEET • SMP1321 SERIES
Typical Performance Data
100
100
10
10
1
1
0.1
0.01
0.1
0.01
0.1
1
10
100
400
500
600
700
800
900
1000
Forward Current (mA)
Forward Voltage (mV)
Series Resistance vs. Current @ 100 MHz
DC Characteristic
0.8
800
700
600
500
400
300
200
100
0
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0 V
1 MHz–1 GHz
10 V
40 V
0
1
2
5
10
20
50
0
500
1000
1500
2000
Reverse Voltage (V)
Frequency (MHz)
Capacitance vs. Reverse Voltage
Conductance vs. Frequency and Reverse Voltage
Resistance vs. Temperature @ 500 MHz
SMP1321-007
R
R
R
R
R
In the -007 configuration of the SOT-23 package, the package
inductance is effectively reduced to 0.4 nH, in comparison to the
1.5 nH value of the standard configuration. This lower inductance
will be particularly beneficial when the diodes are used as shunt
connected switches at frequencies higher than 500 MHz, where
inductance is the primary limitation on maximum switch isolation.
I
-55 °C
(Ω)
-15 °C
(Ω)
+25 °C
(Ω)
+65 °C
(Ω)
+100 °C
(Ω)
F
(mA)
0.02
47.400
12.000
5.200
3.600
2.400
1.030
0.871
0.669
50.000
12.600
5.400
3.800
2.500
1.040
0.888
0.659
56.300
13.900
5.800
4.100
2.600
1.040
0.873
0.642
61.500
15.400
6.400
4.500
2.800
1.070
0.889
0.645
65.100
16.400
6.900
4.800
3.100
1.150
0.956
0.695
0.10
0.30
0.50
To achieve the effective 0.4 nH, the SOT-23 package must
be inserted in the microstrip circuit board with a gap in the
trace, as shown in the figure. Because of the polarity of the
diode junction, this low
1.00
10.00
20.00
100.00
Gap
inductance feature is only
realizable with the cathode
connected to ground.
Ground
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
200048 Rev. B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • October 25, 2004
3
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