Alpha Industries, Inc. [781] 935-5150 •Fax [617] 824-4579 •Email sales@alphaind.com •www.alphaind.com 1
Specifications subject to change without notice. 1/01A
Surface Mount Mixer and
Detector Schottky Diodes
Features
■Tight Parameter Distribution
■Available as Singles and Pairs
■100% DC Tested
■Designed for High Volume Commercial
Applications
■Available in Tape and Reel Packaging
Description
These low cost, surf ace mountable plastic packaged silicon
mix er Schottky diodes are designed for RF and microw a ve
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.
Characteristic Value
Reverse Voltage (VR) Rated VB
Forward Current - Steady State (IF) 50 mA
Power Dissipation (PD) 75 mW
Storage Temperature (TST) -65°C to +150°C
Operating Temperature (TOP) -65°C to +150°C
Junction Temperature (TJ) 150°C
Soldering Temperature 260°C for 5 Seconds
Absolute Maximum Ratings
Single Single Single Common Series Pair Reverse Unconnected Reverse
Cathode Series Pair Pair Unconnected
Pair
SC-79 SOD-323 SOT-23 SOT-23 SOT-23 SOT-143 SOT-143
♦ SMS1546-011 ♦ SMS1546-001 ♦ SMS1546-005 ♦ SMS1546-015
Cathode Mark Marking: SG1 Marking: SG2 Marking: SG7
♦ SMS7621-079 ♦ SMS7621-011 ♦ SMS7621-001 ♦ SMS7621-005 ♦ SMS7621-006 ♦ SMS7621-015
Cathode Mark Cathode Mark Mar king: SH1 Marking: SH2 Marking: SH8 Marking: SH7
♦ SMS7630-079 ♦ SMS7630-011 ♦ SMS7630-001 ♦ SMS7630-005 ♦ SMS7630-006 LS= 1.5 nH ♦ SMS7630-020
Anode Mark
Cathode Mark Mar king: SD1 Marking: SD2 Marking: SD8 Mar king: SD0
LS= 0.7 nH LS= 1.5 nH LS= 1.5 nH LS= 1.5 nH LS= 1.5 nH LS= 1.5 nH
SC-70 SC-70 SC-70
♦ SMS7621-074 ♦ SMS7621-075 ♦ SMS7621-076
Marking: SH3 Marking: SH2 Marking: SH8
♦ SMS7630-075 ♦ SMS7630-076
Marking: SD2 Marking: SD8
LS= 1.4 nH LS= 1.4 nH LS= 1.4 nH
♦ Available through distribution.
Parameter Unit SMS1546 SMS7621 SMS7630
IS A 3E-7 4E-8 5E-06
RSΩ41220
N 1.04 1.05 1.05
TT S 1E-11 1E-11 1E-11
CJ0 pF 0.38 0.10 0.14
M 0.36 0.35 0.40
EGeV 0.69 0.69 0.69
XTI 2 2 2
FC0.5 0.5 0.5
BVV332
IBV A 1E-5 1E-5 1E-4
VJV 0.51 0.51 0.34
SPICE Model Parameters (Per Junction)
2Alpha 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
Typical Detector
Characteristics @ 1.8 GHz
1.00
10.00
100.00
1000.00
10000.00
-30 -20 -10 0 10
Input Power (dBm)
Detected Voltage (mV)
50 Ω
RF Input 10 M Ω
Video Output
RFC
Low Barrier Mixer and Detectors
Electrical Specifications at 25°C (Per Junction)
Pair Configuration
Part Number Barrier VB@ 10 µµA (V) CT@ 0 V (pF) VF@ 1 mA (mV) (b) VF@ 1 mA (mV) RT* @ 10 mA (ΩΩ)
Min. Typ. Max. Max.
SMS1546 Series Low 2 0.50 200–270 10 8
SMS7621 Series Low 2 0.25 260–320 10 18
Zero Bias Detectors
Part Number Pair Configuration
VB@ 100 µµA (V) CT@ 0.15 V (pF) VF@ 0.1 mA (mV) VF@ 1 mA (mV) (b) VF @ 1 mA (mV) RV(ΩΩ)
Min. Typ. Max. Typ.
SMS7630 Series 1.0 0.30 60–120 135–240 10 5000
*RTis the slope resistance.
Surface Mount Mixer and Detector Schottky Diodes
Alpha Industries, Inc. [781] 935-5150 •Fax [617] 824-4579 •Email sales@alphaind.com •www.alphaind.com 3
Specifications subject to change without notice. 1/01A
SOT-23
3
2
1
0.035 (0.89 mm) MIN.
0.044 (1.12 mm) MAX.
0.0005 (0.01 mm) MIN.
0.004 (0.10 mm) MAX.
0.012 (0.30 mm) MIN.
0.020 (0.50 mm) MAX.
0.003 (0.080 mm) MIN.
0.008 (0.20 mm) MAX.
8˚ MAX.
0.022 (0.55 mm) REF.
0.110 (2.80 mm) MIN.
0.120 (3.04 mm) MAX.
0.083 (2.10 mm) MIN.
0.104 (2.64 mm) MAX.
0.037 (0.95 mm) REF.
0.047 (1.20 mm) MIN.
0.055 (1.40 mm) MAX.
0.076 (1.92 mm) REF.
0.020 (0.51 mm) REF.
SC-79
SOT-143
0.060 (1.50 mm) MIN.
0.067 (1.70 mm) MAX.
0.010
(0.25 mm) MIN.
0.014
(0.35 mm) MAX.
0.043 (1.10 mm) MIN.
0.051 (1.30 mm) MAX.
0.020
(0.50 mm) MIN.
0.028
(0.70 mm) MAX.
0.003
(0.07 mm) MIN.
0.008
(0.20 mm) MAX.
10˚ MAX.
10˚ MAX.
0.028
(0.70 mm) MIN.
0.035
(0.90 mm) MAX.
0.006 (0.15 mm) MIN.
CATHODE
INDICATOR
12
SOD-323
0.090 (2.30 mm) MIN.
0.108 (2.74 mm) MAX.
0.045 (1.15 mm) MIN.
0.053 (1.35 mm) MAX.
0.050
(1.25 mm) MAX.
0.006
(0.15 mm) TYP.
0.008 (0.20 mm) NOM.
0.004 (0.10 mm) MAX.
0.010 (0.25 mm) MIN.
0.010
(0.25 mm) MIN.
0.016
(0.40 mm) MAX.
0.063 (1.60 mm) MIN.
0.071 (1.80 mm) MAX.
CATHODE
INDICATOR
21
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.
43
2
1
SC-70
3
2
1
0.031 (0.80 mm) MIN.
0.039 (1.00 mm) MAX.
0.000 (0.00 mm) MIN.
0.004 (0.10 mm) MAX.
0.010 (0.25 mm) MIN.
0.016 (0.40 mm) MAX.
0.071 (1.80 mm) MIN.
0.087 (2.20 mm) MAX.
0.071 (1.80 mm) MIN.
0.094 (2.40 mm) MAX. 0.045 (1.15 mm) MIN.
0.053 (1.35 mm) MAX.
0.026 (0.65 mm) REF.
0.051 (1.30 mm) REF.
0.004 (0.10 mm) MIN.
0.007 (0.18 mm) MAX.
0.004 (0.10 mm) MIN.
0.012 (0.30 mm) MAX.
0.014 (0.35 mm) REF.
