DATA SHEET
SMP1345 Series: Very Low Capacitance
Plastic Packaged Silicon PIN Diodes
Features
Designed for high isolation LNB, WLAN and wireless
switch applications
●
Very low insertion loss (0.4 dB)
●
0.15 pF capacitance
●
Available lead (Pb)-free MSL-1 @ 250 °C per JEDEC J-STD-020
●
Available in tape and reel packaging
●
Description
The SMP1345 series of plastic packaged, surface mountable PIN
diodes is designed for high volume LNB, WLAN and switch applica-
tions from 10 MHz to 6 GHz. The short carrier lifetime of typically
100 ns, combined with its thin I region width of nominally, 10
µm,
results in a fast speed RF switching PIN diode. The RF performance
of the SMP1345 series is assured by virtue of its very low capaci-
tance (0.15 pF) and low resistance (1.5
Ω
at 10 mA).
The SMP1345-518 has been specifically designed for WLAN
802.11 a, b, and g applications. It is ideally used for diversity
switch applications.
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
50 V
250 mW
-65 °C to +150 °C
-65 °C to +150 °C
Class 1B
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 “environmentally
friendly” packaging that is RoHS compliant
(European Parliament for the Restriction of
Hazardous Substances).
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 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.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
200046 Rev. C • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • February 21, 2005
1
DATA SHEET • SMP1345 SERIES
Common
Anode
SOT-23
SMP1345-003
Marking: PU9
SMP1345-003LF
Marking: RU9
L
S
= 1.5 nH
Common
Cathode
SOT-23
SMP1345-004
Marking: PU3
SMP1345-004LF
Marking: RU3
L
S
= 1.5 nH
Series
Pair
SOT-23
SMP1345-005
Marking: PU2
SMP1345-005LF
Marking: RU2
L
S
= 1.5 nH
Single
SC-79
SMP1345-079
Ring
LGA
SMP1345-518
Lead (Pb)-Free
Marking: 0
SMP1345-079LF
L
S
= 0.7 nH
L
S
= 0.6 nH
LF denotes lead (Pb)-free packaging option as an alternative to our standard
tin/lead (Sn/Pb) packaging.
Electrical Specifications at 25 °C
Parameter
Reverse current (I
R
)
Capacitance (C
T
)
Capacitance (C
T
)
Resistance (R
S
)
Resistance (R
S
)
Forward voltage (V
F
)
Carrier lifetime (TI)
I region width
Condition
V
R
= 50 V
F = 1 MHz, V = 1 V
F = 1 MHz, V = 5 V
F = 100 MHz, I = 1 mA
F = 100 MHz, I = 10 mA
I
F
= 10 mA
I
F
= 10 mA
0.19
0.18
3.50
1.50
0.89
100
10
2.00
0.20
Typ.
Max.
10
Unit
µA
pF
pF
Ω
Ω
V
ns
µm
Typical Performance Data
0.20
100
0.15
Series Resistance (Ω)
Capacitance (pF)
10
1
0.10
0.1
0.05
0
5
10
15
20
25
30
0.01
0.01
0.1
1
10
100
Reverse Voltage (V)
Forward Current (mA)
Total Capacitance vs. Reverse Voltage
Measured in an SC-79 Package
Series Resistance vs. Current @ 100 MHz
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
2
February 21, 2005 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • 200046 Rev. C
DATA SHEET • SMP1345 SERIES
Typical Performance Data For SMP1345-518
-0.2
-0.4
-0.6
-0.8
-1.0
-1.2
-1.4
-1.6
-1.8
-2.0
-2.2
-2.4
1.0
2.0
3.0
4.0
-18
-20
-22
Insertion Loss
Isolation
-24
-26
-28
-30
-32
1.0
2.0
3.0
4.0
Frequency (GHz)
Frequency (GHz)
Insertion Loss vs. Frequency
Isolation vs. Frequency
-13
-14
-15
-16
-17
-18
-19
-20
-21
-22
-23
-24
-25
1.0
2.0
3.0
4.0
Return Loss
Frequency (GHz)
Return Loss vs. Frequency
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
4
February 21, 2005 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • 200046 Rev. C
DATA SHEET • SMP1345 SERIES
Recommended Solder Reflow Profiles
Refer to the “Recommended Solder Reflow Profile”
Application Note.
LGA
0.058 (1.47 mm)
0.054 (1.39 mm)
Pin 3
0.048 (1.23 mm)
0.044 (1.13 mm)
Pin 2
0.028 (0.70 mm)
0.023 (0.58 mm)
SC-79
Cathode
Indicator
0.010
(0.25 mm) Min.
0.014
(0.35 mm) Max.
1
0.006 (0.15 mm) Min.
0.028
(0.70 mm) Min.
0.035
(0.90 mm) Max.
Pin 4
Top View
(0.00)
(0.40)
(0.87)
Pin 1
Side View
(1.27)
Pin 1
(0.138 x 45)
Pin 2
(0.076) All Around
2
(1.03)
0.060 (1.50 mm) Min.
0.067 (1.70 mm) Max.
0.043 (1.10 mm) Min.
0.051 (1.30 mm) Max.
0.020
(0.50 mm) Min.
0.028
(0.70 mm) Max.
10˚ Max.
(0.73)
(0.30)
(0.00)
Pin 4
Pin 3
Bottom View
10˚ Max.
0.003
(0.07 mm) Min.
0.008
(0.20 mm) Max.
SOT-23
0.110 (2.80 mm) Min.
0.120 (3.04 mm) Max.
3
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
0.083 (2.10 mm) Min.
0.104 (2.64 mm) Max.
0.037 (0.95 mm) Ref.
0.020 (0.51 mm) Ref.
0.076 (1.92 mm) Ref.
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.
0.022 (0.55 mm) Ref.
0.0005 (0.01 mm) Min.
0.004 (0.10 mm) Max.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
200046 Rev. C • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • February 21, 2005
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