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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 SC70, 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 -65C to +150C -65C to +150C 150C 260C for 5 Seconds
Single
Single
Single
Common Cathode
Series Pair
Reverse Series Pair SOT-23
Unconnected Pair SOT-143 o SMS1546-015 Marking: SG7
Reverse Unconnected Pair SOT-143
SC-79
SOD-323 o SMS1546-011 Cathode Mark
SOT-23 o SMS1546-001 Marking: SG1 o SMS7621-001 Marking: SH1 o SMS7630-001 Marking: SD1 LS = 1.5 nH SC-70 Marking: SH3
SOT-23 o SMS1546-005 Marking: SG2 Marking: SH2 Marking: SD2 LS = 1.5 nH SC-70 Marking: SH2 Marking: SD2 LS = 1.4 nH LS = 1.4 nH
o SMS7621-079 Cathode Mark o SMS7630-079
o SMS7621-011 Cathode Mark o SMS7630-011 Cathode Mark LS = 1.5 nH
o SMS7621-005 o SMS7621-006 o SMS7621-015 Marking: SH8 Marking: SD8 LS = 1.5 nH SC-70 Marking: SH8 Marking: SD8 LS = 1.4 nH Marking: SH7 LS = 1.5 nH o SMS7630-020 Marking: SD0 LS = 1.5 nH o SMS7630-005 o SMS7630-006
Anode Mark
LS = 0.7 nH
o SMS7621-074 o SMS7621-075 o SMS7621-076 o SMS7630-075 o SMS7630-076
o Available through distribution.
Alpha Industries, Inc. [781] 935-5150 * Fax [617] 824-4579 * Email sales@alphaind.com * www.alphaind.com
Specifications subject to change without notice. 1/01A
1
Surface Mount Mixer and Detector Schottky Diodes
Electrical Specifications at 25C (Per Junction)
Low Barrier Mixer and Detectors
Part Number Barrier VB @ 10 A (V) Min. SMS1546 Series SMS7621 Series
*RT is the slope resistance.
CT @ 0 V (pF) Typ. 0.50 0.25
Pair Configuration VF @ 1 mA (mV) (b) VF @ 1 mA (mV) Max. 200-270 260-320 10 10
RT* @ 10 mA () Max. 8 18
Low Low
2 2
Zero Bias Detectors
Part Number VB @ 100 A (V) Min. SMS7630 Series 1.0 CT @ 0.15 V (pF) Typ. 0.30 60-120 135-240 Pair Configuration VF @ 0.1 mA (mV) VF @ 1 mA (mV) (b) VF @ 1 mA (mV) Max. 10 RV () Typ. 5000
10000.00
Detected Voltage (mV)
50 RF Input
RFC
10 M Video Output
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 V A V eV S pF Unit A 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
2
Alpha Industries, Inc. [781] 935-5150 * Fax [617] 824-4579 * Email sales@alphaind.com * www.alphaind.com
Specifications subject to change without notice. 1/01A
Surface Mount Mixer and Detector Schottky Diodes
SOT-23
0.110 (2.80 mm) MIN. 0.120 (3.04 mm) MAX.
3
SC-70
0.012 (0.30 mm) MIN. 0.020 (0.50 mm) MAX. 0.047 (1.20 mm) MIN. 0.055 (1.40 mm) MAX.
1 2
0.071 (1.80 mm) MIN. 0.087 (2.20 mm) MAX. 0.010 (0.25 mm) MIN. 0.016 (0.40 mm) MAX. 0.071 (1.80 mm) MIN. 0.094 (2.40 mm) MAX.
0.083 (2.10 mm) MIN. 0.104 (2.64 mm) MAX.
3
0.045 (1.15 mm) MIN. 0.053 (1.35 mm) MAX.
0.037 (0.95 mm) REF. 0.020 (0.51 mm) REF. 0.076 (1.92 mm) REF.
1
0.014 (0.35 mm) REF.
2
0.026 (0.65 mm) REF.
0.051 (1.30 mm) REF. 0.003 (0.080 mm) MIN. 0.008 (0.20 mm) MAX. 8 MAX. 0.035 (0.89 mm) MIN. 0.044 (1.12 mm) MAX. 0.004 (0.10 mm) MIN. 0.007 (0.18 mm) MAX. 0.031 (0.80 mm) MIN. 0.039 (1.00 mm) MAX.
0.022 (0.55 mm) REF.
0.0005 (0.01 mm) MIN. 0.004 (0.10 mm) MAX.
0.004 (0.10 mm) MIN. 0.012 (0.30 mm) MAX.
0.000 (0.00 mm) MIN. 0.004 (0.10 mm) MAX.
SOD-323
0.090 (2.30 mm) MIN. 0.108 (2.74 mm) MAX. 0.010 (0.25 mm) MIN. 0.016 (0.40 mm) MAX. 0.063 (1.60 mm) MIN. 0.071 (1.80 mm) MAX.
SC-79
CATHODE 0.006 (0.15 mm) MIN. INDICATOR 0.010 (0.25 mm) MIN. 0.014 (0.35 mm) MAX.
1 2
0.045 (1.15 mm) MIN. 0.053 (1.35 mm) MAX. 1
2
0.028 (0.70 mm) MIN. 0.035 (0.90 mm) MAX.
CATHODE INDICATOR
0.060 (1.50 mm) MIN. 0.067 (1.70 mm) MAX. 0.043 (1.10 mm) MIN. 0.051 (1.30 mm) MAX.
0.008 (0.20 mm) NOM. 0.006 (0.15 mm) TYP. 0.050 (1.25 mm) MAX.
0.004 (0.10 mm) MAX. 0.010 (0.25 mm) MIN.
10 MAX. 0.003 (0.07 mm) MIN. 0.008 (0.20 mm) MAX. 10 MAX.
0.020 (0.50 mm) MIN. 0.028 (0.70 mm) MAX.
SOT-143
0.110 (2.80 mm) MIN. 0.120 (3.04 mm) MAX. 0.020 (0.50 mm) REF. 4 0.083 (2.10 mm) MIN. 0.104 (2.64 mm) MAX. 1 0.068 (1.72 mm) REF. 0.028 (0.70 mm) REF. 0.030 (0.76 mm) MIN. 0.035 (0.89 mm) MAX. 0.047 (1.20 mm) MIN. 0.055 (1.40 mm) MAX. 8 MAX. 0.003 (0.08 mm) MIN. 0.008 (0.20 mm) MAX. 0.031 (0.80 mm) MIN. 0.047 (1.20 mm) MAX. 0.012 (0.30 mm) MIN. 0.020 (0.50 mm) MAX. 2 3 0.076 (1.92 mm) REF.
0.022 (0.55 mm) REF.
0.0005 (0.01 mm) MIN. 0.004 (0.15 mm) MAX.
Alpha Industries, Inc. [781] 935-5150 * Fax [617] 824-4579 * Email sales@alphaind.com * www.alphaind.com
Specifications subject to change without notice. 1/01A
3

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