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200041W • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice March 13, 2013 1
DATA SHEET
Surface Mount Mixer and Detector Schottky Diodes
Applications
Sensitive RF and microwave detector circuits
Sampling and mixer circuits
High-volume wireless
WiFi and mobile
Low-noise receivers in high-sensitivity ID tags
Radio designs
Features
Tight parameter distribution
Available as singles, pairs, and dual pairs
Packages rated MSL1, 260 °C per JEDEC J-STD-020)
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 that combine Skyworks advanced semiconductor
technology with low-cost packaging techniques. All diodes are
100 percent DC tested and deliver tight parameter distribution,
which minimizes performance variability.
These diodes are available in SOD-882, SC-70, SC-79, SC-88,
SOD-323, SOT-23, SOT-143, and Molded Interconnect System
(MIS) packages. Wiring configurations include singles, common
cathode, series pairs, unconnected pairs, and dual series pairs.
They may be used at frequencies up to 24 GHz.
Table 1 describes the various packages and marking of the mixer
and detector Schottky diodes.
DATA SHEET • MIXER AND DETECTOR SCHOTTKY DIODES
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Table 1. Schottky Diode Packaging and Marking
Single Single Single Common Cathode Series Pair
SC-79
Green™
SOD-323
Green™
SOT-23 SOT-23 SOT-23
SMS1546-005LF
Green™
Marking: XG2
SMS7621-001
Marking: SH1
SMS7621-005
Marking: SH2
SMS7621-079LF
Marking: Cathode
SMS7621-001LF
Green™
Marking: XH1
SMS7621-005LF
Green™
Marking: XH2
SMS7630-001
Marking: SD1
SMS7630-005
Marking: SD2
SMS7630-079LF
Marking: Anode
SMS7630-011LF
Marking: XD
SMS7630-001LF
Green™
Marking: XD1
SMS7630-005LF
Green™
Marking: XD2
LS = 0.7 nH LS = 1.5 nH LS = 1.5 nH LS = 1.5 nH
SC-70 SC-70
SMS7621-074
Marking: SH3
SMS7621-075
Marking: SH2
SMS7621-074LF
Green™
Marking: XH3
SMS7621-075LF
Green™
Marking: XH2
LS = 1.4 nH LS = 1.4 nH
Reverse Series Pair Unconnected Pair Reverse Unconnected Pair Unconnected Pair Dual Series Pair Single
SOT-23 SOT-143 SOT-143 MIS
Green™
SC-88
Green™
SOD-882
Green™
SMS7621-006
Marking: SH8
SMS7621-015
Marking: SH7
SMS7621-517
Marking: H
Pb-Free
SMS7621-006LF
Green™
Marking: XH8
SMS7621-015LF
Marking: XH7
SMS7621-081LF
Marking: XHQ
SMS7621-040LF
Marking: E
SMS7630-006
Marking: SD8
SMS7630-020
Marking: SD0
SMS7630-517
Marking: D
Pb-Free
SMS7630-006LF
Green™
Marking: XD8
SMS7630-020LF
Marking: XD0
SMS7630-040LF
Marking: P
LS = 1.5 nH LS = 1.5 nH LS = 1.5 nH LS = 0.6 nH LS = 1.8 nH LS = 0.45 nH
The Pb-free symbol or “LF” in the part number denotes a lead-free, RoHS-compliant package unless otherwise noted as Green™. Tin/lead (Sn/Pb) packaging is not recommended
for new designs.
Innovation to Go™
Select Linear Products (indicated by ) now available for purchase online.
DATA SHEET • MIXER AND DETECTOR SCHOTTKY DIODES
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Electrical and Mechanical Specifications
The absolute maximum ratings of the mixer and detector Schottky
diodes are provided in Table 2. Electrical specifications are
provided in Tables 3 and 4. The associated SPICE model
parameters are provided in Table 5. A typical detector schematic
diagram is shown in Figure 1.
A pinout and equivalent circuit diagram for the dual series pair
Schottky diode (SMS7621-081LF) is shown in Figure 2. Typical
performance characteristics are illustrated in Figures 3 and 4.
Package dimensions are shown in Figures 5 to 19 (odd numbers),
and tape and reel dimensions are provided in Figures 6 to 20
(even numbers).
Package and Handling Information
Instructions on the shipping container label regarding exposure to
moisture after the container seal is broken must be followed.
Otherwise, problems related to moisture absorption may occur
when the part is subjected to high temperature during solder
assembly.
The mixer and detector Schottky diodes are rated to Moisture
Sensitivity Level 1 (MSL1) at 260 °C for 5 seconds. They can be
used for lead or lead-free soldering. For additional information,
refer to the Skyworks Application Note, Solder Reflow Information,
document number 200164.
Care must be taken when attaching this product, whether it is
done manually or in a production solder reflow environment.
Production quantities of this product are shipped in a standard
tape and reel format.
Table 2. Surface Mount Mixer and Detector Diodes Absolute Maximum Ratings
Parameter Symbol Minimum Maximum Units
Reverse voltage VR Rated VB V
Forward current, steady state IF 50 mA
Power dissipation PD 75 mW
Storage temperature TSTG 65 +150 °C
Operating temperature TA 65 +150 °C
Junction temperature TJ +150 °C
Note: Exposure to maximum rating conditions for extended periods may reduce device reliability. There is no damage to device with only one parameter set at the limit and all other
parameters set at or below their nominal value. Exceeding any of the limits listed here may result in permanent damage to the device.
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 potentials of several kilovolts on the human body
or equipment, which can discharge without detection. Industry-standard ESD precautions should be used at all times.
Table 3. Surface Mount Mixer and Detector Diodes Electrical Specifications (Note 1)
(TA = +25 °C Per Junction, Unless Otherwise Noted)
Part Number Barrier Minimum VB @ 10 μA
(V)
Typical CT @ 0 V
(pF)
VF @ 1 mA
(mV)
Maximum Pair Configuration
ΔVF @ 1 mA
(mV)
Maximum RT (Note
2)
(Ω)
SMS1546 series Low 2 0.50 200 to 270 10 8 @ 10 mA
SMS7621 series Low 2 0.25 260 to 320 10 18 @ 5 mA
Note 1: Performance is guaranteed only under the conditions listed in this Table.
Note 2: RT is the slope resistance.
DATA SHEET • MIXER AND DETECTOR SCHOTTKY DIODES
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Table 4. Surface Mount Mixer and Detector Diodes Electrical Specifications (Note 1)
(TA = +25 °C Per Junction, Unless Otherwise Noted)
Part Number
Minimum VB
@ 100 μA
(V)
Typical CT @ 0.15 V
(pF)
VF @ 0.1 mA
(mV)
VF @ 1 mA
(mV)
Maximum Pair Configuration
ΔVF @ 1 mA
(mV)
Typical RV
(Ω)
SMS7630 series 1 0.3 60 to 120 135 to 240 10 5000
Note 1: Performance is guaranteed only under the conditions listed in this Table.
Table 5. SPICE Model Parameters (Per Junction)
Parameter Units SMS1546 Series SMS7621 Series SMS7630 Series
IS A 3E-7 4E-8 5E-6
RS Ω 4 12 20
N 1.04 1.05 1.05
TT sec 1E-11 1E-11 1E-11
CJO pF 0.38 0.1 0.14
M 0.36 0.35 0.40
EG eV 0.69 0.69 0.69
XTI 2 2 2
FC 0.5 0.5 0.5
BV V 3 3 2
IBV A 1E-5 1E-5 1E-4
VJ V 0.51 0.51 0.34
Figure 1. Typical Detector Circuit
DATA SHEET • MIXER AND DETECTOR SCHOTTKY DIODES
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Figure 2. SMS7621-081LF Dual Series Pair Pinout and Equivalent Circuit
Typical Performance Characteristics
Figure 3. Typical Detector Characteristics @ 1.8 GHz
Figure 4. SMS7621-081LF Forward Voltage vs Forward Bias
Current
DATA SHEET • MIXER AND DETECTOR SCHOTTKY DIODES
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Figure 5. MIS Package Dimension Drawing
Figure 6. MIS Tape and Reel Dimensions
DATA SHEET • MIXER AND DETECTOR SCHOTTKY DIODES
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Figure 7. SC-70 Package Dimension Drawing
Figure 8. SC-70 Tape and Reel Dimensions
DATA SHEET • MIXER AND DETECTOR SCHOTTKY DIODES
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Figure 9. SC-79 Package Dimension Drawing
Figure 10. SC-79 Tape and Reel Dimensions
DATA SHEET • MIXER AND DETECTOR SCHOTTKY DIODES
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Figure 11. SC-88 Package Dimension Drawing
Figure 12. SC-88 Tape and Reel Dimensions
DATA SHEET • MIXER AND DETECTOR SCHOTTKY DIODES
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Figure 13. SOD-323 Package Dimension Drawing
Figure 14. SOD-323 Tape and Reel Dimensions
DATA SHEET • MIXER AND DETECTOR SCHOTTKY DIODES
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Figure 15. SOD-882 Package Dimension Drawing
Figure 16. SOD-882 Tape and Reel Dimensions
DATA SHEET • MIXER AND DETECTOR SCHOTTKY DIODES
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Figure 17. SOT-23 Package Dimension Drawing
Figure 18. SOT-23 Tape and Reel Dimensions
DATA SHEET • MIXER AND DETECTOR SCHOTTKY DIODES
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Figure 19. SOT-143 Package Dimension Drawing
Figure 20. SOT-143 Tape and Reel Dimensions
DATA SHEET • MIXER AND DETECTOR SCHOTTKY DIODES
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