Skyworks Solutions, Inc. [978] 241-7000
Fax [978] 241-7906 Email sales@skyworksinc.com www.skyworksinc.com
1
Specifications subject to change without notice. 12/02A
Surface Mount Schottky
Quad Mixer Diodes
Features
Tight Parameter Distribution
Available as Ring Quads, Crossover
Quads, Bridge Quads and Octoquads
100% DC Tested
Designed for High Volume Commercial
Applications
Available in Tape and Reel Packaging
Description
Alpha Industries offers a series of low cost devices in a
SOT-143 package. They cover low, medium and high
barrier junctions as ring quads, crossover quads and
bridge quads. An octoquad ring is also offered for high
dynamic range applications. These devices are
constructed utilizing Alpha's monolithic chip technology,
assuring uniformity of electrical characteristics for each
junction. The low capacitance of Alpha's ring and
crossover quads are designed for double balanced mixer
applications covering wireless frequencies into C-band.
The bridge quads are designated for modulators and
frequency multiplier applications. These diodes are 100%
DC tested and deliver tight parameter distribution,
minimizing performance variability. They compliment
Alpha's product line of Schottky singles and pairs available
in SC-70, SC-79, SOD-323, SOT-23 and SOT-143
packages. Available in tape and reel for pick and
place manufacturing.
Characteristic
Value
Reverse Voltage (V
R
)
Rated V
B
Forward Current - Steady State (I
F
)
50 mA
Power Dissipation (P
D
)
75 mW
Storage Temperature (T
ST
)
-65C to +150C
Operating Temperature (T
OP
)
-65C to +150C
Junction Temperature (T
J
)
150C
Soldering Temperature
260C for 5 Seconds
ESD Human Body Model
Class 1B
Absolute Maximum Ratings
V
B
V
F
R
T
1
@ 10
A
C
J
V
F
@ 1 mA
@ 10 mA
Barrier
(V)
@ 0 V
@ 1 mA
(mV)
(
)
(pF)
(mV)
SOT-143
Min.
Max.
Max.
Ring Quad
Crossover Quad
Bridge Quad
Octoquad
Low
2
0.3-0.5
200-270
10
8
SMS3926-022 SMS3926-023 SMS3929-021
Marking: SE4
Marking: SE5
Marking: SQE
Medium
2
0.3-0.5
310-370
10
8
SMS3927-023 SMS3930-021
Marking: SJ5
Marking: SRE
High
4
0.3-0.5
520-580
10
8
SMS3928-023 SMS3931-021 SMS3940-026
Marking: SK5
Marking: SSE
Marking: STG
Electrical Specifications at 25C (Per Junction)
Available through distribution.
1. R
T
is the slope resistance.
All parameters are based upon a single junction.
Surface Mount Schottky Quad Mixer Diodes
2
Skyworks Solutions, Inc. [978] 241-7000
Fax [978] 241-7906 Email sales@skyworksinc.com www.skyworksinc.com
Specifications subject to change without notice. 12/02A
SPICE Model Parameters (Per Junction)
Parameter
Unit
SMS3928
SMS3926
SMS3927
SMS3931
SMS3929
SMS3930
SMS3940
IS
A
2.5E-07
1.3E-09
9E-13
R
S
4
4
4
N
1.04
1.04
1.04
TT
S
1E11
1E11
1E11
C
J0
pF
0.42
0.39
0.39
M
0.32
0.37
0.42
E
G
eV
0.69
0.69
0.69
XTI
2
2
2
F
C
0.5
0.5
0.5
B
V
V
2
3
4
I
BV
A
1.00E05
1.00E05
1.00E05
V
J
V
0.495
0.595
0.800
All parameters are based upon a single junction.
Typical Forward Voltage Characteristics at 25C
Part Number
V
F
@ 0.01 mA (mV)
V
F
@ 0.10 mA (mV)
V
F
@ 1.0 mA (mV)
V
F
@ 10.0 mA (mV)
Typ.
Typ.
Typ.
Typ.
SMS3926
100
165
232
324
SMS3927
206
271
338
428
SMS3928
423
488
555
641
SOT-143
0.110 (2.80 mm) MIN.
0.120 (3.04 mm) MAX.
0.083 (2.10 mm) MIN.
0.104 (2.64 mm) MAX.
0.012 (0.30 mm) MIN.
0.020 (0.50 mm) MAX.
0.0005 (0.01 mm) MIN.
0.004 (0.15 mm) MAX.
0.031 (0.80 mm) MIN.
0.047 (1.20 mm) MAX.
0.030 (0.76 mm) MIN.
0.035 (0.89 mm) MAX.
0.047 (1.20 mm) MIN.
0.055 (1.40 mm) MAX.
0.003 (0.08 mm) MIN.
0.008 (0.20 mm) MAX.
0.022 (0.55 mm) REF.
8 MAX.
0.020 (0.50 mm) REF.
0.028 (0.70 mm) REF.
0.068 (1.72 mm) REF.
0.076 (1.92 mm) REF.
4
3
2
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