ALPHA SMS3925-079

Preliminary
Low Capacitance High Voltage
Schottky Diode
SMS3925-079
Features
■ Silicon Schottky Diode for Detector
Applications
■ Ultra Small SC-79 Package
■ Designed for High Volume, Low Cost
Applications
■ 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
Value
Reverse Voltage (VR)
40 V
Forward Current - 1 mS Pulse (IF)
1A
Forward Current - Steady State (IF)
50 mA
Power Dissipation (PD)
250 mW
Storage Temperature (TST)
-65°C to +150°C
Operating Temperature (TOP)
-65°C to +150°C
Junction Temperature (TJ)
150°C
Electrostatic Discharge (ESD) Human Body Model (HBM)
Class 1B
Electrical Specifications at 25°C
Parameter
Condition
Reverse Current (IR)
VR = 40 V
Capacitance (CT)1
VR = 0 V, F = 1 MHz
Forward Voltage (VF)
IF = 1 mA
Min.
0.57
Typ.
Max.
Unit
10
uA
0.48
0.6
pF
0.62
0.67
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
Typical Performance Data
SPICE Model Parameters
0.6
Capacitance (pF)
0.5
0.4
0.3
0.2
0.1
0
0
5
SMS3925-079
10
15
Reverse Voltage (V)
Total Capacitance vs. Reverse Voltage
Parameter
Units
SMS3925
IS
A
1.8E-09
RS
Ω
5.4
N
-
1.7
TT
S
8E-11
CJ0
pF
0.36
M
-
0.24
EG
eV
0.69
XTI
-
2
FC
-
0.5
BV
V
58
IBV
A
1.00E-05
VJ
V
0.800
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.
0.003
(0.07 mm) MIN.
0.008
(0.20 mm) MAX.
10˚ 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