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 (VR) Forward Current - Steady State (IF) Power Dissipation (PD) Storage Temperature (TST) Operating Temperature (TOP) Junction Temperature (TJ) Soldering Temperature ESD Human Body Model Value Rated VB 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 VB @ 10 µA (V) CJ @ 0V (pF) VF @ 1 mA (mV) ∆ VF @ 1 mA (mV) RT1 @ 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. RT 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
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Surface Mount Schottky Quad Mixer Diodes
SPICE Model Parameters (Per Junction)
Parameter IS RS N TT CJ0 M EG XTI FC BV IBV VJ
All parameters are based upon a single junction.
Unit A Ω S pF
SMS3926 SMS3929 2.5E-07 4 1.04 1E–11 0.42 0.32
SMS3927 SMS3930 1.3E-09 4 1.04 1E–11 0.39 0.37 0.69 2 0.5 3 1.00E–05 0.595
SMS3928 SMS3931 SMS3940 9E-13 4 1.04 1E–11 0.39 0.42 0.69 2 0.5 4 1.00E–05 0.800
eV
0.69 2 0.5
V A V
2 1.00E–05 0.495
Typical Forward Voltage Characteristics at 25°C
Part Number SMS3926 SMS3927 SMS3928 VF @ 0.01 mA (mV) Typ. 100 206 423 VF @ 0.10 mA (mV) Typ. 165 271 488 VF @ 1.0 mA (mV) Typ. 232 338 555 VF @ 10.0 mA (mV) Typ. 324 428 641
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. 0.012 (0.30 mm) MIN. 0.020 (0.50 mm) MAX. 2 3 0.076 (1.92 mm) REF.
0.031 (0.80 mm) MIN. 0.047 (1.20 mm) MAX.
0.022 (0.55 mm) REF.
0.0005 (0.01 mm) MIN. 0.004 (0.15 mm) MAX.
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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
