DATA SHEET
SMP1304 Series: Low-Distortion Attenuator
Plastic Packaged PIN Diodes
Features
Low-distortion design
●
Frequency range from HF to > 2 GHz
●
Designed for base station applications
●
Configured for PI and TEE attenuators
●
Available lead (Pb)-free and RoHS-compliant MSL-1 @ 260 °C
(1)
per JEDEC J-STD-020
●
Description
The SMP1304 series of plastic packaged, surface mountable, low
capacitance (0.3 pF), silicon PIN diodes is designed for use in
attenuator applications from 5 MHz to beyond 2 GHz. The thick
100
µm
I region of these PIN diodes makes them very attractive
for use in low-distortion PI and TEE attenuators commonly used
in TV distribution applications. The 1 µs typical carrier lifetime of
these diodes results in resistance of 20
Ω
maximum at 1 mA and
7
Ω
maximum at 10 mA. Available in a selection of plastic pack-
ages: as a single diode in the small footprint SOD-323 package
and in a variety of configurations in the SOT-23 package,
including a low inductance (0.4 nH) SMP1304-007 package.
Also available in the SOT-143 package are three diode junctions
designed for insertion in TEE attenuators (SMP1304-018) and PI
attenuators (SMP1304-019). Also available in a SOT-5
(SMP1304-027) package as a four-diode array designed for
insertion in the commonly used four-diode PI attenuator circuit.
Absolute Maximum Ratings
Characteristic
Reverse voltage (V
R
)
Power dissipation @ 25 °C lead
temperature (P
D
)
Storage temperature (T
ST
)
Operating temperature (T
OP
)
ESD human body model
Value
200 V
250 mW
-65 °C to +150 °C
-65 °C to +150 °C
Class 1C
Performance is guaranteed only under the conditions listed in the specifications table and is
not guaranteed under the full range(s) described by the Absolute Maximum specifications.
Exceeding any of the absolute maximum/minimum specifications may result in permanent
damage to the device and will void the warranty.
NEW
Skyworks offers lead (Pb)-free, RoHS (Restriction of
Hazardous Substances)-compliant packaging.
CAUTION:
Although this device is designed to be as robust as
possible, ESD (Electrostatic Discharge) can damage
this device. This device must be protected at all times
from ESD. Static charges may easily produce poten-
tials of several kilovolts on the human body or
equipment, which can discharge without detection.
Industry-standard ESD precautions must be employed
at all times.
1. SOT-5 (-027) MSL to be defined.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
200044 Rev. C • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • February 23, 2006
1
DATA SHEET • SMP1304 SERIES
Single
SOT-23
SMP1304-001
Marking: PG1
SMP1304-001LF
Marking: RG1
L
S
= 1.5 nH
Common
Cathode
SOT-23
SMP1304-004
Marking: PG3
SMP1304-004LF
Marking: RG3
L
S
= 1.5 nH
Series Pair
SOT-23
SMP1304-005
Marking: PG2
SMP1304-005LF
Marking: RG2
L
S
= 1.5 nH
Low
Inductance
SOT-23
SMP1304-007
Marking: PGB
SMP1304-007LF
Marking: RGB
L
S
= 0.4 nH
Single
SOD-323
SMP1304-011
Marking: PG
SMP1304-011LF
Marking: RG
L
S
= 1.5 nH
PI
SOT-143
SMP1304-019
Marking: PGJ
SMP1304-019LF
Marking: RGJ
PI
SOT-5
SMP1304-027
Marking: PGM
SMP1304-027LF
Marking: RGM
LF denotes lead (Pb)-free, RoHS-compliant packaging option as an alternative to our
standard tin/lead (Sn/Pb) packaging.
BUY
NOW
Innovation to Go
TM
Select
Linear Products (indicated by ) now available for purchase online.
Electrical Specifications at 25 °C
Parameter
Reverse current (I
R
)
Capacitance
(C
T
)
(1)
Resistance (R
S
)
Resistance (R
S
)
Resistance (R
S
)
Forward voltage (V
F
)
Carrier lifetime (TI)
I region width
1. The SMP1304-019 and SMP1304-027 maximum capacitance is 0.45 pF.
Condition
V
R
= 200 V
F = 1 MHz, V = 30 V
F = 100 MHz, I = 1 mA
F = 100 MHz, I = 10 mA
F = 100 MHz, I = 100 mA
I
F
= 10 mA
I
F
= 10 mA
Typ.
Max.
10
0.3
Unit
µA
pF
Ω
Ω
Ω
V
µs
µm
40
50
7
2
0.8
1
100
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
2
February 23, 2006 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • 200044 Rev. C
DATA SHEET • SMP1304 SERIES
Typical Performance Data
10000
1000
100
Series Resistance (Ω)
100
10
1
0.1
0.01
Forward Current (mA)
0.1
1
10
100
10
1
0.1
0.01
400
500
600
700
800
900
1000
Forward Current (mA)
Forward Voltage (mV)
Series Resistance vs. Current @ 100 MHz
0.8
0.7
400
350
300
DC Characteristic
Capacitance (pF)
0.6
0.5
0.4
0.3
0.2
0.1
0
0
1
2
5
10
20
50
100
100 MHz
1 GHz
1 MHz
Conductance (µS)
250
200
150
10 V
100
50
0
0
500
1000
1500
2000
40 V
0V
Reverse Voltage (V)
Frequency (MHz)
Capacitance vs. Reverse Voltage
Conductance vs. Frequency
and Reverse Voltage
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
200044 Rev. C • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • February 23, 2006
3
DATA SHEET • SMP1304 SERIES
Resistance vs. Temperature @ 100 MHz
I
F
(mA)
0.02
0.1
0.3
1
10
20
100
R
-55 °C
Ω
(Ω)
1590
315
108
34.5
4.8
3
1.3
R
-15 °C
Ω
(Ω)
1660
340
118
37.9
5.3
3.3
1.4
R
25 °C
Ω
(Ω)
1752
367
128
41.6
5.8
3.6
1.5
R
65 °C
Ω
(Ω)
1770
396
141
46.3
6.6
4.1
1.7
R
100 °C
Ω
(Ω)
1760
409
147
48.8
7
4.3
1.8
SMP1304-019 PI Attenuator PIN Diodes
The SMP1304-019 employs three PIN diode junctions in a
SOT-143 package. They are configured for ease of insertion in
PI attenuator circuits commonly used from 10 MHz to beyond
1 GHz. The SMP1304 PIN diode junction was designed for low
capacitance, wide resistance dynamic range, and low distortion
performance.
3
1
4
3
SMP1304-007
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 isola-
tion. 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 junc-
tion, this low inductance feature is realizable only with the
cathode connected to ground.
Gap
2
4
1
2
SMP1304-019 (PI)
Recommended
Solder
Reflow Profiles
Refer to the
“Recommended Solder Reflow Profile”
Application Note.
Tape and Reel Information
Refer to the
“Discrete Devices and IC Switch/Attenuators
Tape and Reel Package Orientation”
Application Note.
Ground
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
4
February 23, 2006 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • 200044 Rev. C
DATA SHEET • SMP1304 SERIES
SOT-23
0.110 (2.80 mm) Min.
0.120 (3.04 mm) Max.
3
SOD-323
0.012 (0.30 mm) Min.
0.020 (0.50 mm) Max.
0.047 (1.20 mm) Min.
0.055 (1.40 mm) Max.
1
2
0.090 (2.30 mm) Min.
0.108 (2.74 mm) Max.
0.010
(0.25 mm) Min.
0.016
(0.40 mm) Max.
0.063 (1.60 mm) Min.
0.071 (1.80 mm) Max.
0.083 (2.10 mm) Min.
0.104 (2.64 mm) Max.
0.045 (1.15 mm) Min.
0.053 (1.35 mm) Max.
1
2
0.037 (0.95 mm) Ref.
0.020 (0.51 mm) Ref.
0.076 (1.92 mm) Ref.
Cathode
Indicator
0.008 (0.20 mm) Nom.
0.003 (0.080 mm) Min.
0.008 (0.20 mm) Max.
8˚ Max.
0.035 (0.89 mm) Min.
0.044 (1.12 mm) Max.
0.006
(0.15 mm) Typ.
0.050
(1.25 mm) Max.
0.004 (0.10 mm) Max.
0.022 (0.55 mm) Ref.
0.0005 (0.01 mm) Min.
0.004 (0.10 mm) Max.
0.010 (0.25 mm) Min.
SOT-143
0.110 (2.80 mm) Min.
0.120 (3.04 mm) Max.
0.020 (0.50 mm) Ref.
4
0.083 (2.10 mm) Min.
0.104 (2.64 mm) Max.
1
0.068 (1.72 mm) Ref.
0.028 (0.70 mm) Ref.
0.030 (0.76 mm) Min.
0.035 (0.89 mm) Max.
0.031 (0.80 mm) Min.
0.047 (1.20 mm) Max.
0.012 (0.30 mm) Min.
0.020 (0.50 mm) Max.
2
3
0.076 (1.92 mm) Ref.
SOT-5
0.074
(1.90 mm)
Ref.
5
4
0.069
(1.75 mm)
0.052
(1.30 mm)
3
0.118
(3.00 mm)
0.087
(2.20 mm)
1
0.020 (0.51 mm)
0.014 (0.35 mm)
0.012
(0.30 mm)
0.000
(0.00 mm)
Min.
0.064 (1.63 mm)
0.035 (0.90 mm)
2
0.037 (0.95 mm) Ref.
0.012 (0.30 mm) Typ.
0.024
(0.61 mm)
0.004
(0.10 mm)
0.047 (1.20 mm) Min.
0.055 (1.40 mm) Max.
0.003 (0.08 mm) Min.
8˚ Max.
0.008 (0.20 mm) Max.
0.022 (0.55 mm) Ref.
0.0005 (0.01 mm) Min.
0.004 (0.15 mm) Max.
0.122 (3.10 mm)
0.106 (2.70 mm)
0.0104 (0.26 mm)
0.0035 (0.09 mm) Min.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
200044 Rev. C • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • February 23, 2006
5
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