CATV and HFC SIDACtor Device
http://www.littelfuse.com 2 - 58 © 2004 Littelfuse, Inc.
+1 972-580-7777 SIDACtor® Data Book and Design Guide
CATV and HFC SIDACtor Device
This SIDACtor device is a 1000 A solid state protection device offered in a TO-220 package.
It protects equipment located in the severe surge environment of Community Antenna TV
(CATV) applications.
Used in Hybrid Fiber Coax (HFC) applications, this device replaces the gas tube
traditionally used for station protection, because a SIDACtor device has a much tighter
voltage tolerance.
* For surge ratings, see table below.
General Notes:
• All measurements are made at an ambient temperature of 25 °C. IPP applies to -40 °C through +85 °C temperature range.
• IPP is a repetitive surge rating and is guaranteed for the life of the product.
• Listed SIDACtor devices are bi-directional. All electrical parameters and surge ratings apply to forward and reverse polarities.
• VDRM is measured at IDRM.
• VS is measured at 100 V/µs.
• Special voltage (VS and VDRM) and holding current (IH) requirements are available upon request.
• Off-state capacitance (CO) is measured at 1 MHz with a 2 V bias and is a typical value.
Electrical Parameters
Part
Number *
VDRM
Volts
VS
Volts
VT
Volts
IDRM
µAmps
IS
mAmps
IT
Amps
IH
mAmps
CO
pF
Pins 1-3
P1400AD 120 160 3 5 800 2.2 50 200
P1800AD 170 220 3 5 800 2.2 50 150
Surge Ratings
Series
IPP
8x20 µs
Amps
IPP
10x1000 µs
Amps
ITSM
60 Hz
Amps
di/dt
Amps/µs
D 1000 250 120 500
13
CATV and HFC SIDACtor Device
© 2004 Littelfuse, Inc. 2 - 59 http://www.littelfuse.com
SIDACtor® Data Book and Design Guide +1 972-580-7777
Data Sheets
Thermal Considerations
Package Symbol Parameter Value Unit
Modified
TO-220
TJOperating Junction Temperature Range -40 to +150 °C
TSStorage Temperature Range -65 to +150 °C
RθJA Thermal Resistance: Junction to Ambient 60 °C/W
13
IH
IT
IS
IDRM
VDRM
VT
+V
-V
+I
-I
VS
IH
IT
IS
IDRM
VDRM
VT
+V
-V
+I
-I
VS
V-I Characteristics
50
100
0t
r
t
d
0
Peak
Value
Half Value
t – Time (µs)
I
PP
– Peak Pulse Current – %I
PP
t
r
= rise time to peak value
t
d
= decay time to half value
Wavefor m = t
r
x t
d
tr x td Pulse Wave-form
-8-40 -20 0 20 40 60 80 100 120 140 160
-6
-4
0
2
4
6
8
10
12
14
Junction Temperature (TJ) – ˚C
Percent of V
S
Change – %
25 ˚C
Normalized VS Change versus Junction Temperature
0.4-40 -20 0 20 40 60 80 100 120 140 160
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
Case Temperature (T
C
) – ˚C
Ratio of I
H
I
H
(T
C
= 25 ˚C)
25 ˚C
Normalized DC Holding Current versus Case Temperature
