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Alpha Industries |
Surface Mount Mixer and
Detector Schottky Diodes
Features
s Tight Parameter Distribution
s Available as Singles and Pairs
s 100% DC Tested
s Designed for High Volume Commercial
Applications
s Available in Tape and Reel Packaging
Description
These low cost, surface mountable plastic packaged silicon
mixer Schottky diodes are designed for RF and microwave
mixers and detectors.They include low barrier diodes and zero
bias detectors, combining Alpha’s advanced semiconductor
technology with low cost packaging techniques. All diodes are
100% DC tested and deliver tight parameter distribution,
minimizing performance variability.They are available in SC-
70, SC-79, SOD-323, SOT-23 and SOT-143 packages.Wiring
configurations include singles, common cathode, series pairs
and unconnected pairs. Applications include low noise
receivers used in high sensitivity ID tags, wireless systems,
radio designs and may be used at frequencies to 10 GHz.
SPICE model parameters are included as a design tool.
Absolute Maximum Ratings
Characteristic
Reverse Voltage (VR)
Forward Current - Steady State (IF)
Power Dissipation (PD)
Storage Temperature (TST)
Operating Temperature (TOP)
Junction Temperature (TJ)
Soldering Temperature
Value
Rated VB
50 mA
75 mW
-65°C to +150°C
-65°C to +150°C
150°C
260°C for 5 Seconds
Single
Single
Single
Common
Cathode
Series Pair
Reverse
Series Pair
Unconnected
Pair
Reverse
Unconnected
Pair
SC-79
SOD-323
SOT-23
o SMS1546-011 o SMS1546-001
SOT-23
o SMS1546-005
SOT-23
SOT-143
o SMS1546-015
SOT-143
Cathode Mark Marking: SG1
o SMS7621-079 o SMS7621-011 o SMS7621-001
Marking: SG2
Marking: SG7
o SMS7621-005 o SMS7621-006 o SMS7621-015
Cathode Mark Cathode Mark Marking: SH1
o SMS7630-079 o SMS7630-011 o SMS7630-001
Anode Mark Cathode Mark Marking: SD1
Marking: SH2 Marking: SH8
o SMS7630-005 o SMS7630-006
Marking: SD2 Marking: SD8
Marking: SH7
LS = 1.5 nH
o SMS7630-020
Marking: SD0
LS = 0.7 nH
LS = 1.5 nH
LS = 1.5 nH
SC-70
o SMS7621-074
LS = 1.5 nH
SC-70
o SMS7621-075
LS = 1.5 nH
SC-70
o SMS7621-076
LS = 1.5 nH
Marking: SH3 Marking: SH2 Marking: SH8
o SMS7630-075 o SMS7630-076
Marking: SD2 Marking: SD8
LS = 1.4 nH
LS = 1.4 nH
LS = 1.4 nH
o Available through distribution.
Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email [email protected] • www.alphaind.com
Specifications subject to change without notice. 1/01A
1
Surface Mount Mixer and Detector Schottky Diodes
Electrical Specifications at 25°C (Per Junction)
Low Barrier Mixer and Detectors
Part Number
Barrier
SMS1546 Series
SMS7621 Series
*RT is the slope resistance.
Low
Low
VB @ 10 µA (V)
Min.
2
2
CT @ 0 V (pF)
Typ.
0.50
0.25
Pair Configuration
VF @ 1 mA (mV) (b) VF @ 1 mA (mV) RT* @ 10 mA (Ω)
200–270
Max.
10
Max.
8
260–320
10
18
Zero Bias Detectors
Part Number
SMS7630 Series
VB @ 100 µA (V)
Min.
1.0
CT @ 0.15 V (pF)
Typ.
0.30
Pair Configuration
VF @ 0.1 mA (mV) VF @ 1 mA (mV) (b) VF @ 1 mA (mV)
Max.
60–120
135–240
10
RV (Ω)
Typ.
5000
10000.00
1000.00
100.00
10.00
1.00
-30 -20 -10
0 10
Input Power (dBm)
Typical Detector
Characteristics @ 1.8 GHz
SPICE Model Parameters (Per Junction)
Parameter
IS
RS
N
TT
CJ0
M
EG
XTI
FC
BV
IBV
VJ
Unit
A
Ω
S
pF
eV
V
A
V
SMS1546
3E-7
4
1.04
1E-11
0.38
0.36
0.69
2
0.5
3
1E-5
0.51
SMS7621
4E-8
12
1.05
1E-11
0.10
0.35
0.69
2
0.5
3
1E-5
0.51
SMS7630
5E-06
20
1.05
1E-11
0.14
0.40
0.69
2
0.5
2
1E-4
0.34
50 Ω
RF Input
RFC
10 M Ω
Video Output
2 Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email [email protected] • www.alphaind.com
Specifications subject to change without notice. 1/01A
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