DATA SHEET
SMP1321 Series: Low Capacitance, Plastic Packaged PIN
Diodes
Applications
High-performance wireless switches
Features
Capacitance: 0.18 pF typical @ 30 V
Series resistance: 1.05
Ω
typical @ 10 mA
Packages rated MSL1, 260
C
per JEDEC J-STD-020
Skyworks
Green
TM
products are compliant with
all applicable legislation and are halogen-free.
For additional information, refer to
Skyworks
Definition of Green
TM
, document number
SQ04–0074.
Description
The SMP1321 series of plastic packaged, surface mountable PIN
diodes is designed for use in high volume switch applications
from 10 MHz to more than 10
GHz.
The low capacitance of these
diodes (0.25 pF maximum at 30 V), combined with a low
resistance (2.0
Ω
maximum at 10 mA), makes the SMP1321
series particularly suited for high isolation, series-connected PIN
diode switches in battery operated circuits.
The SMP1321 series is available in a selection of plastic
packages and a variety of configurations that include a small
footprint SC-79, a low inductance SOT-23, a miniature SOD-882,
and an SOD-323.
Table 1 describes the various packages and marking of the
SMP1321 series.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
200048Y • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 24, 2017
1
DATA SHEET • SMP1321 SERIES: LOW CAPACITANCE, PLASTIC PACKAGED PIN DIODES
Table 1. SMP1321 Series Packaging and Marking
Common Anode
Series Pair
Low Inductance
Single
SC-79
Green™
SMP1321-079LF
Marking: Cathode and C6
Single
SOD-882
Green™
SMP1321-040LF
Marking: C
Single
SOD-323
Green™
SMP1321-011LF
Marking: RM
SOT-23
SMP1321-003LF
Green™
Marking: RM9
L
S
= 1.5 nH
SOT-23
♦SMP1321-005LF
Green™
Marking: RM2
L
S
= 1.5 nH
SOT-23
SMP1321-007LF
Green™
Marking: RMB
L
S
= 0.4 nH
L
S
= 0.7 nH
L
S
= 0.45 nH
L
S
= 1.5 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.
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.
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
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
Package dimensions are shown in Figures 6 to 12 (even
numbers), and tape and reel dimensions are provided in Figures 7
to 13 (odd numbers).
Package and Handling Information
Ground
200048-001
Figure 1. SOT-23 Package Trace Gap
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.
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
tape and reel format.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
2
May 24, 2017 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 200048Y
DATA SHEET • SMP1321 SERIES: LOW CAPACITANCE, PLASTIC PACKAGED PIN DIODES
Table 2. SMP1321 Series Absolute Maximum Ratings (Per Junction)
1
Parameter
Reverse voltage
Power dissipation @ 25
°C
lead temperature
Storage temperature
Operating temperature
Electrostatic discharge:
Human Body Model (HBM), Class 1A
V
R
P
D
T
STG
T
A
ESD
500
V
–65
–65
Symbol
Minimum
Maximum
100
400
+150
+150
Units
V
mW
C
C
1 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.
ESD HANDLING:
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 when handling or transporting. Static charges may easily produce
potentials of several kilovolts on the human body or equipment, which can discharge without detection.
Industry-standard ESD handling precautions should be used at all times.
Table 3. SMP1321 Series Electrical Specifications (Per Junction)
1
(T
A
= +25
C,
Unless Otherwise Noted)
Parameter
Reverse current
Capacitance
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
1 Performance is guaranteed only under the conditions listed in this table.
2 C is 0.4 pF maximum for the SMP1321-007.
T
Min
Typical
Max
10
Units
μA
pF
Ω
Ω
V
μs
μm
0.18
0.25
3.00
1.05
0.85
0.4
12
2.00
V
F
TI
I
F
= 10 mA
I
F
= 10 mA
Table 4. Resistance vs Temperature @ 500 MHz (Per Junction)
I
F
(mA)
0.02
0.10
0.3
0.5
1.0
10
20
100
R
S
@ –55
°C
(Ω)
47.4
12.0
5.2
3.6
2.4
1.03
0.871
0.669
R
S
@ –15
°C
(Ω)
50.0
12.6
5.4
3.8
2.5
1.04
0.888
0.659
R
S
@ +25
°C
(Ω)
56.3
13.9
5.8
4.1
2.6
1.04
0.873
0.642
R
S
@ +65
°C
(Ω)
61.5
15.4
6.4
4.5
2.8
1.07
0.889
0.645
R
S
@ +100
°C
(Ω)
65.1
16.4
6.9
4.8
3.1
1.15
0.956
0.695
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
200048Y • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 24, 2017
3
DATA SHEET • SMP1321 SERIES: LOW CAPACITANCE, PLASTIC PACKAGED PIN DIODES
Typical Performance Characteristics (Per Junction)
100
100
Series
Resistance (Ω)
10
Forward Current (mA)
10
1
1
200048-002
0.1
0.01
0.01
0.1
1
10
100
400
500
600
700
800
900
1000
Forward
Current
(mA)
Forward Voltage (mV)
Figure 2. Series Resistance vs Current @ 100 MHz
Figure 3. Forward Current vs Voltage
0.8
800
0.7
700
Capacitance (pF)
0.6
600
0V
0.5
0.4
0.3
200048-004
Conductance
(μS)
500
400
300
200
100
40 V
0
0
500
1000
1500
10 V
200048-005
0.2
0.1
0
0
1
2
5
10
20
50
2000
Reverse Voltage (V)
Frequency (MHz)
Figure 4. Capacitance vs Reverse Voltage
(1 MHz to 1 GHz)
Figure 5. Conductance vs Frequency and Reverse Voltage
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
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May 24, 2017 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 200048Y
200048-003
0.1
DATA SHEET • SMP1321 SERIES: LOW CAPACITANCE, PLASTIC PACKAGED PIN DIODES
Polarity
Indicator Area
Box
or
Bar
0.006 (0.15 mm) Min
1
2
0.028
(0.70 mm) Min
0.035
(0.90 mm) Max
0.010
(0.25 mm) Min
0.014
(0.35 mm) Max
0.060 (1.50 mm) Min
0.067 (1.70 mm) Max
0.043 (1.10 mm) Min
0.051 (1.30 mm) Max
10° Max
0.003
(0.07 mm) Min
0.008
(0.20 mm) Max
10° Max
Dimensions are in inches (millimeters shown in parentheses)
0.020
(0.50 mm) Min
0.028
(0.70 mm) Max
200048-006
Figure 6. SC-79 Package Dimension Drawing
Ø1.50± 0.10
4.00 ± 0.10
0.229 ± 0.02 (T)
4.00 ± 0.10
2.00 ± 0.05
1.75 ± 0.10
B
2° Max
3.50 ± 0.05
1.95 ± 0.05 (Bo)
1.40 ± 0.05
A
A
B
0.80 ± 0.05 (Ko)
Pin 1 Indicator
Ø0.50± 0.05
Section
B
0.39 ± 0.05
Notes:
1. Carrier tape: black conductive polycarbonate or polystyrene.
2. Cover tape material: transparent conductive PSA.
3. Cover tape size: 5.4 mm width.
4. ESD-surface resistivity is ≤1 x 108 Ohms/square per
EIA, JEDEC TNR Specification.
5. All measurements are in millimeters.
2
o
Max
0.90 ± 0.05 (Ao)
Section
A
200048-007
Figure 7. SC-79 Tape and Reel Dimensions
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
200048Y • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 24, 2017
5
8.00 ± 0.20
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