Surface Mount Schottky Quad Mixer Diodes [Alpha Features @ Tight Parameter Distribution @ Available as Ring Quads, Crossover Quads, Bridge Quads and Octoquads @ 100% DC Tested @ Designed for High Volume Commercial Applications @ 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 Alphas monolithic chip technology, assuring uniformity of electrical characteristics for each junction. The low capacitance of Alphas 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 Alphas 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 Value Reverse Voltage (Vp) Rated Vg Forward Current - Steady State (IF) 50 mA Power Dissipation (Pp) 75 mW Storage Temperature (Ts) -65C to +150C Operating Temperature (Top) -65C to +150C Junction Temperature (T,) 150C Soldering Temperature 260C for 5 Seconds ESD Human Body Model Class 1B Electrical Specifications at 25C (Per Junction) Ve AVE R;! @10uA Cy VE @1mA | @10mA Barrier (Vv) @0vV @1mA (mV) (Q) (pF) (mv) Min. Max. Max. Ring Quad | Crossover Quad| Bridge Quad Octoquad Low 2 0.3-0.5 200-270 10 8 SMS3926-022| SMS3926-023 | SMS3929-021 | SMS3938-026 Marking: SE4 Marking: SE5 | Marking: SQE | Marking: SUG Medium 3 0.3-0.5 310-370 10 8 SMS3927-022| SMS3927-023 | SMS3930-021 | SMS3939-026 Marking: SX4 Marking: SJ5 Marking: SRE | Marking: SVG High 4 0.3-0.5 520-580 10 8 SMS3928-022| SMS3928-023 | SMS3931-021 | SMS3940-026 Marking: SK4 Marking: SK5 Marking: SSE | Marking: STG Available through distribution. 1. Rr is the slope resistance. All parameters are based upon a single junction. Alpha Industries, Inc. [781] 935-5150 Fax [617] 824-4579 Email sales@alphaind.com www.alphaind.com 1 Specifications subject to change without notice. 6/99ASurface Mount Schottky Quad Mixer Diodes SPICE Model Parameters (Per Junction) SMS3926 SMS3927 SMS3928 Parameter Unit SMS3929 SMS3930 SMS3931 SMS3938 SMS3939 SMS3940 IS A 2.5E-07 1.3E-09 9E-13 Rs Q 4 4 4 N 1.04 1.04 1.04 TT Ss 1E-11 1E-11 1E-11 Cio pF 0.42 0.39 0.39 M 0.32 0.37 0.42 Eg eV 0.69 0.69 0.69 XTl 2 2 2 Fo 0.5 0.5 0.5 By Vv 2 3 4 Iv A 1.00E-05 1.00E-05 1.00E-05 Vy Vv 0.495 0.595 0.800 All parameters are based upon a single junction. Typical Forward Voltage Characteristics at 25C Vr @ 0.01 mA (mV) Ve @ 0.10 mA (mV) Ve @ 1.0 mA (mV) Ve @ 10.0 mA (mV) Part Number Typ. Typ. Typ. Typ. SMS3926 100 165 232 324 SMS3927 206 271 338 428 SMS3928 423 488 555 641 SOT-143 0.110 (2.80 mm) MIN. 0.120 (3.04 mm) MAX. 0.020 (0.50 mm) REF. 0.076 (1.92 mm) REF. 0.083 (2.10 mm) MIN. 0.104 (2.64 mm) MAX. 0.068 (1.72 mm) REF. 0.028 (0.70 mm) REF. | 0.012 (0.30 mm) MIN. 0.020 (0.50 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. 0.031 (0.80 mm) MIN. << 0.047 (1.20 mm) MAX. . 0.003 (0.08 mm) MIN. y MAX. 0.008 (0.20 mm) MAX. Scat \ -_ _ 4 0.0005 (0.01 mm) vind 4 0.022 (0.55 mm) REF. 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. 6/99A