200048N • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • September 21, 2012
1
DATA SHEET •
SMP1321 SERIES DIODES
Table 1. SMP1321 Series Packaging and Marking
Single
SOT-23
SMP1321-001
Marking: PM1
SMP1321-001LF
Green™
Marking: RM1
L
S
= 1.5 nH
Common Anode
SOT-23
SMP1321-003
Marking: PM9
SMP1321-003LF
Green™
Marking: RM9
L
S
= 1.5 nH
SC-70
SMP1321-073
Marking: PM9
SMP1321-073LF
Green™
Marking: RM9
L
S
= 1.4 nH
Common Cathode
SOT-23
SMP1321-004
Marking: PM3
SMP1321-004LF
Green™
Marking: RM3
L
S
= 1.5 nH
SC-70
SMP1321-074
Marking: PM3
SMP1321-074LF
Green™
Marking: RM3
L
S
= 1.4 nH
Series Pair
SOT-23
♦SMP1321-005
Marking: PM2
♦SMP1321-005LF
Green™
Marking: RM2
L
S
= 1.5 nH
SC-70
SMP1321-075
Marking: PM2
SMP1321-075LF
Green™
Marking: RM2
L
S
= 1.4 nH
Low Inductance
SOT-23
SMP1321-007
Marking: PMB
SMP1321-007LF
Green™
Marking: RMB
L
S
= 0.4 nH
Single
SOD-323
Green™
Single
SC-79
Green™
Single
SOD-882
Green™
SMP1321-011LF
Marking: RM
L
S
= 1.5 nH
SMP1321-079LF
Marking: Cathode
L
S
= 0.7 nH
SMP1321-040LF
Marking: C
L
S
= 0.45 nH
The Pb-free symbol or “LF” in the part number denotes a lead-free, RoHS-compliant package unless otherwise noted as Green™. Tin/lead (Sn/Pb) packaging is not recommended
for new designs.
Innovation to Go™
Select Linear Products (indicated by
♦)
now available for purchase online.
SMP1321-007
For the -007 configuration of the SOT-23 package, the package
inductance is effectively reduced to 0.4 nH compared to the
1.5 nH value of the standard configuration. This lower inductance
is particularly beneficial when the diodes are used as shunt
connected switches at frequencies higher than 500 MHz in which
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 Figure 1. Because of the polarity of the diode junction,
this low inductance feature is realizable only with the cathode
connected to ground.
SMP1321 series are provided in Table 2. Electrical specifications
are provided in Table 3. Resistance versus temperature
measurements are provided in Table 4.
Typical performance characteristics of the SMP1321 series are
illustrated in Figures 2 to 5. Package dimensions are shown in
Figures 6 to 14 (even numbers), and tape and reel dimensions are
provided in Figures 7 to 15 (odd numbers).
Package and Handling Information
Instructions on the shipping container label regarding exposure to
moisture after the container seal is broken must be followed.
Otherwise, problems related to moisture absorption may occur
when the part is subjected to high temperature during solder
assembly.
The SMP1321 series is rated to Moisture Sensitivity Level 1
(MSL1) at 260
°C.
It can be used for lead or lead-free soldering.
For additional information, refer to the Skyworks Application Note,
Solder Reflow Information,
document number 200164.
Figure 1. SOT-23 Package Trace Gap
Electrical and Mechanical Specifications
The part number and configuration for the SMP1321 series are
provided in Table 1. The absolute maximum ratings of the
Care must be taken when attaching this product, whether it is
done manually or in a production solder reflow environment.
Production quantities of this product are shipped in a standard
September 21, 2012 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 200048N
DATA SHEET •
SMP1321 SERIES DIODES
Table 2. SMP1321 Series Absolute Maximum Ratings (Per Junction)
Parameter
Reverse voltage
Power dissipation @ 25
°C
lead temperature
Storage temperature
Operating temperature
Note:
Symbol
V
R
P
D
T
STG
T
A
Minimum
Maximum
100
250
Units
V
mW
°C
°C
–65
–65
+150
+150
Exposure to maximum rating conditions for extended periods may reduce device reliability. There is no damage to device with only one parameter set at the limit and all other
parameters set at or below their nominal value. Exceeding any of the limits listed here may result in permanent damage to the device.
CAUTION:
Although this device is designed to be as robust as possible, Electrostatic Discharge (ESD) can damage this device. This device
must be protected at all times from ESD. Static charges may easily produce potentials of several kilovolts on the human body
or equipment, which can discharge without detection. Industry-standard ESD precautions should be used at all times. The
SMP1321 series PIN diodes are Class 1A ESD devices.
Table 3. SMP1321 Series Electrical Specifications (Per Junction) (Note 1)
(T
A
= +25
°C,
Unless Otherwise Noted)
Parameter
Reverse current
Capacitance (Note 2)
Resistance
I
R
C
T
R
S
Symbol
Test Condition
V
R
= 100 V
F = 1 MHz, V = 30 V
F = 100 MHz
I = 1 mA
I = 10 mA
Forward voltage
Carrier lifetime
I region width
Note 1:
Performance is guaranteed only under the conditions listed in this Table.
Note 2:
C
T
is 0.4 pF maximum for the SMP1321-007.
Min
Typical
0.18
3.00
1.05
0.85
0.4
15
Max
10
0.25
Units
μA
pF
Ω
Ω
V
μs
μm
2.00
V
F
TI
I
F
= 10 mA
I
F
= 10 mA
Table 4. Resistance vs Temperature @ 500 MHz (Per Junction)
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