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 -65°C to +150°C -65°C to +150°C 150°C Class 1B
Electrical Specifications at 25°C
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
[email protected] • 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 Ω 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
[email protected] • www.alphaind.com
Specifications subject to change without notice. 8/99A
.