Skyworks Solutions, Inc. [781] 376-3000
Fax [781] 376-3100 Email sales@skyworksinc.com www.skyworksinc.com
1
Specifications subject to change without notice. 6/03A
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 @ 250C
per JEDEC J-STD-020
Available in Tape and Reel Packaging
Description
The SMP1345 series of plastic packaged, surface
mountable PIN diodes are designed for high volume LNB,
WLAN and switch applications from 10 MHz to 6 GHz. The
short carrier lifetime of typically 100 nS, combined with its
thin I region width of nominally, 10
m, results in a fast speed
RF switching PIN diode. The RF performance of the
SMP1345 series is assured by virtue of its very low
capacitance (0.15 pF) and low resistance (1.5
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.
SMP1345 Series
Characteristic
Value
Reverse Voltage (V
R
)
50 V
Power Dissipation @ 25C Lead
250 mW
Temperature (P
D
)
Storage Temperature (T
ST
)
-65C to +150C
Operating Temperature (T
OP
)
-65C to +150C
ESD Human Body Model
Class 1B
Absolute Maximum Ratings
LF denotes Lead (Pb)-Free packaging.
Common Common
Series
Anode
Cathode
Pair
Single
Ring
Marking: PU9
Marking: PU3
Marking: PU2
SOT-23
SOT-23
SOT-23
SC-79
LGA
SMP1345-003
SMP1345-004
SMP1345-005
SMP1345-079
SMP1345-518
SMP1345-079LF
L
S
= 1.5 nH
L
S
= 1.5 nH
L
S
= 1.5 nH
L
S
= 0.7 nH
L
S
= 0.6 nH
Lead (Pb)-Free "environmentally friendly"
packaging available: Skyworks offers the
SMP1345-079LF and SMP1345-518 Lead
(Pb)-Free package as a green alternative.
NEW
2
Skyworks Solutions, Inc. [781] 376-3000
Fax [781] 376-3100 Email sales@skyworksinc.com www.skyworksinc.com
Specifications subject to change without notice. 6/03A
Very Low Capacitance Plastic Packaged Silicon PIN Diodes
SMP1345 Series
Total Capacitance vs. Reverse Voltage
Measured in an SC-79 Package
Reverse Voltage (V)
Capacitance (pF)
0
5
10
15
25
20
30
0.05
0.10
0.15
0.20
Series Resistance vs. Current @ 100 MHz
0.01
0.1
1
10
100
Forward Current (mA)
Series Resistance (
)
0.01
0.1
1
10
100
Typical Performance Data
Parameter
Condition
Typ.
Max.
Unit
Reverse Current (I
R
)
V
R
= 50 V
10
A
Capacitance (C
T
)
F = 1 MHz, V = 1 V
0.19
pF
Capacitance (C
T
)
F = 1 MHz, V = 5 V
0.18
0.20
pF
Resistance (R
S
)
F = 100 MHz, I = 1 mA
3.50
Resistance (R
S
)
F = 100 MHz, I = 10 mA
1.50
2.00
Forward Voltage (V
F
)
IF = 10 mA
0.89
V
Carrier Lifetime (TI)
IF = 10 mA
100
nS
I Region Width
10
m
Electrical Specifications at 25C
Very Low Capacitance Plastic Packaged Silicon PIN Diodes
SMP1345 Series
Skyworks Solutions, Inc. [781] 376-3000
Fax [781] 376-3100 Email sales@skyworksinc.com www.skyworksinc.com
3
Specifications subject to change without notice. 6/03A
R
4
L
4
C
8
CTL2
V
DC
= 3.3 V
RF1
C
4
C
7
L
3
R
3
V
DC
= 3.3 V
CTL1
RF
4
R
1
R
4
0402 200
L
1
L
4
0603 18 nH
C
1
C
8
0402 10 pF
C
3
C
6
V
DC
= 3.3 V
CTL2
R
2
L
2
C
2
RF2
C
5
CTL1
R
1
L
1
V
DC
= 3.3 V
C
1
U
1
RF3
SMP1345-518
WLAN Application Circuit for DPDT Diversity Switch Using SMP1345-518
SMP1345-518
EVAL BOARD
REV 1
SK40253
RF4
C3
RF2
C2
RF3 C1
R2
C6
L2
R4
C8
L4
C7
R3
RF1 C4
L3
CTR2
CTR1
C5
R1
L1
2.000
1.500
0.014
Evaluation Board
Bridge Switch Schematic
4
Skyworks Solutions, Inc. [781] 376-3000
Fax [781] 376-3100 Email sales@skyworksinc.com www.skyworksinc.com
Specifications subject to change without notice. 6/03A
Very Low Capacitance Plastic Packaged Silicon PIN Diodes
SMP1345 Series
Insertion Loss vs. Frequency
Frequency (GHz)
Insertion Loss
1.0
2.0
3.0
4.0
-2.4
-1.0
-1.2
-1.4
-1.6
-1.8
-2.0
-2.2
-0.4
-0.6
-0.8
-0.2
Isolation vs. Frequency
Frequency (GHz)
Isolation
1.0
2.0
3.0
4.0
-32
-18
-20
-22
-24
-26
-28
-30
Return Loss vs. Frequency
Frequency (GHz)
Return Loss
1.0
2.0
3.0
4.0
-20
-21
-22
-23
-24
-25
-13
-14
-15
-16
-17
-18
-19
Typical Performance Data For SMP1345-518
Very Low Capacitance Plastic Packaged Silicon PIN Diodes
SMP1345 Series
Skyworks Solutions, Inc. [781] 376-3000
Fax [781] 376-3100 Email sales@skyworksinc.com www.skyworksinc.com
5
Specifications subject to change without notice. 6/03A
Profile Feature
SnPb Eutectic Assembly
Lead (Pb)-Free Assembly 100% Sn
Average Ramp-Up Rate (T
L
to T
P
)
3C/Second Max.
3C/Second Max.
Preheat
Temperature Min. (T
Smin
)
100C
150C
Temperature Max. (T
Smax
)
150C 200C
Time (Min. to Max.) (ts)
60120 Seconds
6080 Seconds
T
Smax
to T
L
Ramp-up Rate
--
3C/Second Max.
Time Maintained Above:
Temperature (T
L
) 183C
217C
Time (t
L
)
60150 Seconds
60150 Seconds
Peak Temperature (T
P
)
240 +0/-5C
250 +0/-5C
Time Within 5C of Actual Peak Temperature (tp)
1030 Seconds
2040 Seconds
Ramp-Down Rate
6C/Second Max.
6C/Second Max.
Time 25C to Peak Temperature
6 Minutes Max.
8 Minutes Max.
Recommended Solder Reflow Profiles
T
P
T
Smax
T
Smin
t
s
Preheat
t
p
Critical Zone
T
L
to T
L
t 25C to Peak
Time
T
emper
ature
T
L
25C
Reference JEDEC J-STD-020
I
L
All temperatures refer to the topside of the package, measured on the package body surface.
Reference JEDEC J-STD-020B.
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