Surface Mount Schottky
Quad Mixer Diodes
Features
s
Tight Parameter Distribution
s
Available as Ring Quads, Crossover
Quads, Bridge Quads and Octoquads
s
100% DC Tested
s
Designed for High Volume Commercial
Applications
s
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.
Absolute Maximum Ratings
Characteristic
Reverse Voltage (V
R
)
Forward Current - Steady State (I
F
)
Power Dissipation (P
D
)
Storage Temperature (T
ST
)
Operating Temperature (T
OP
)
Junction Temperature (T
J
)
Soldering Temperature
ESD Human Body Model
Value
Rated V
B
50 mA
75 mW
-65°C to +150°C
-65°C to +150°C
150°C
260°C for 5 Seconds
Class 1B
Electrical Specifications at 25°C (Per Junction)
Barrier
V
B
@ 10
µ
A
(V)
C
J
@ 0V
(pF)
V
F
@ 1 mA
(mV)
∆
V
F
@ 1 mA
(mV)
R
T
1
@ 10 mA
Ω
(Ω)
SOT-143
Max.
0.3-0.5
0.3-0.5
0.3-0.5
200-270
310-370
520-580
10
10
10
Max.
8
8
8
Ring Quad
Marking: SE4
Medium
High
3
4
Crossover Quad
Marking: SE5
Marking: SJ5
Marking: SK5
o
Available through distribution.
1. R
T
is the slope resistance.
All parameters are based upon a single junction.
Min.
Low
2
Bridge Quad
Marking: SQE
Marking: SRE
Marking: SSE
Octoquad
o
SMS3926-022
o
SMS3926-023
o
SMS3929-021
o
SMS3927-023
o
SMS3930-021
o
SMS3928-023
o
SMS3931-021
o
SMS3940-026
Marking: STG
Alpha Industries, Inc.
[781] 935-5150
•
Fax
[617] 824-4579
•
Email
sales@alphaind.com
•
www.alphaind.com
Specifications subject to change without notice. 6/01A
1
ALPHA [ ALPHA INDUSTRIES ]
