SMP1321 SKYWORKS [Skyworks Solutions Inc.], SMP1321 Datasheet - Page 3

• Manufacturer Part Number: SMP1321
• Description: Low Capacitance Plastic Packaged PIN Diodes
• Manufacturer: SKYWORKS [Skyworks Solutions Inc.]

Resistance vs. Temperature @ 500 MHz
Typical Performance Data
100.00
10.00
20.00
(mA)
0.02
0.10
0.30
0.50
1.00
I
F
100
0.1
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
10
1
0
Series Resistance vs. Current @ 100 MHz
0.01
0
47.400
12.000
-55 °C
5.200
3.600
2.400
1.030
0.871
0.669
(Ω Ω )
R
Capacitance vs. Reverse Voltage
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
200048 Rev. B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • October 25, 2004
1
0.1
50.000
12.600
-15 °C
5.400
3.800
2.500
1.040
0.888
0.659
Forward Current (mA)
(Ω Ω )
R
Reverse Voltage (V)
2
5
1
+25 °C
56.300
13.900
5.800
4.100
2.600
1.040
0.873
0.642
(Ω Ω )
R
1 MHz–1 GHz
10
10
+65 °C
61.500
15.400
6.400
4.500
2.800
1.070
0.889
0.645
(Ω Ω )
R
20
100
50
+100 °C
65.100
16.400
6.900
4.800
3.100
1.150
0.956
0.695
(Ω Ω )
R
SMP1321-007
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.
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
inductance feature is only
realizable with the cathode
connected to ground.
Conductance vs. Frequency and Reverse Voltage
0.01
100
800
700
600
500
400
300
200
100
0.1
10
1
0
400
0
500
500
DC Characteristic
Forward Voltage (mV)
600
Frequency (MHz)
DATA SHEET • SMP1321 SERIES
1000
700
800
Ground
Gap
1500
900
0 V
10 V
40 V
1000
2000
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