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| Preliminary Low Capacitance High Voltage Schottky Diode SMS3925-079 Features I Silicon Schottky Diode for Detector Applications I Ultra Small SC-79 Package I Designed for High Volume, Low Cost Applications I Available in Tape and Reel Packaging Description The SMS3925-079 is a 40 V, 0.6 pF RF Schottky diode designed for use as a level detector in wireless handsets and for general purpose switching applications. The SMS3925-079 is packaged in the surface mount miniature SC-79 package and is designated for low cost, high volume applications. Absolute Maximum Ratings Characteristic Reverse Voltage (VR) Forward Current - 1 mS Pulse (IF) Forward Current - Steady State (IF) Power Dissipation (PD) Storage Temperature (TST) Operating Temperature (TOP) Junction Temperature (TJ) Electrostatic Discharge (ESD) Human Body Model (HBM) Value 40 V 1A 50 mA 250 mW -65C to +150C -65C to +150C 150C Class 1B Electrical Specifications at 25C Parameter Reverse Current (IR) Capacitance (CT)1 Forward Voltage (VF) Condition VR = 40 V VR = 0 V, F = 1 MHz IF = 1 mA 0.57 0.48 0.62 Min. Typ. Max. 10 0.6 0.67 Unit uA pF V 1. Capacitance is total capacitance (CT), junction capacitance (CJ) + package capacitance (CP). Alpha Industries, Inc. [781] 935-5150 * Fax [617] 824-4579 * Email sales@alphaind.com * www.alphaind.com Specifications subject to change without notice. 8/99A 1 Low Capacitance High Voltage Schottky Diode SMS3925-079 Typical Performance Data 0.6 0.5 SPICE Model Parameters Parameter IS Units A S pF eV V A V SMS3925 1.8E-09 5.4 1.7 8E-11 0.36 0.24 0.69 2 0.5 58 1.00E-05 0.800 Capacitance (pF) RS N TT 0.4 0.3 0.2 0.1 0 0 5 10 15 CJ0 M EG XTI FC BV IBV VJ Reverse Voltage (V) Total Capacitance vs. Reverse Voltage SC-79 CATHODE 0.006 (0.15 mm) MIN. INDICATOR 0.010 (0.25 mm) MIN. 0.014 (0.35 mm) MAX. 1 2 0.028 (0.70 mm) MIN. 0.035 (0.90 mm) MAX. 0.060 (1.50 mm) MIN. 0.067 (1.70 mm) MAX. 0.043 (1.10 mm) MIN. 0.051 (1.30 mm) MAX. 0.020 (0.50 mm) MIN. 0.028 (0.70 mm) MAX. 10 MAX. 10 MAX. 0.003 (0.07 mm) MIN. 0.008 (0.20 mm) MAX. 2 Alpha Industries, Inc. [781] 935-5150 * Fax [617] 824-4579 * Email sales@alphaind.com * www.alphaind.com Specifications subject to change without notice. 8/99A |
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