CATV Line Amplifiers/Power Inserters ME SIDACtor Device
http://www.littelfuse.com
2 - 62
2004 Littelfuse, Inc.
+1 972-580-7777
SIDACtor
Data Book and Design Guide
CATV Line Amplifiers/Power Inserters ME
SIDACtor Device
This SIDACtor device is a 5000 A solid state protection device offered in a non-isolated
TO-218 package. It protects equipment located in the severe surge environment of CATV
(Community Antenna TV) applications.
In CATV line amplifiers and power inserters, this device can replace the gas tubes
traditionally used for station protection because SIDACtor devices have much tighter
voltage tolerances.
* For surge ratings, see table below.
** I
T
is a free air rating; heat sink I
T
rating is 25 A.
General Notes:
All measurements are made at an ambient temperature of 25 C. I
PP
applies to -40 C through +85 C temperature range.
I
PP
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.
V
DRM
is measured at I
DRM.
V
S
is measured at 100 V/s.
Special voltage (V
S
and V
DRM
) and holding current (I
H
) requirements are available upon request.
Off-state capacitance (C
O
) is measured at 1 MHz with a 2 V bias and is a typical value.
Electrical Parameters
Part
Number *
V
DRM
Volts
V
S
Volts
V
T
Volts
I
DRM
Amps
I
S
mAmps
I
T
Amps **
I
H
mAmps
C
O
pF
P1500ME
140
180
4
5
800
2.2/25
50
750
P1900ME
140
220
4
5
800
2.2/25
50
750
P2300ME
180
260
4
5
800
2.2/25
50
750
Surge Ratings
Series
I
PP
8x20 s
Amps
I
TSM
60 Hz
Amps
di/dt
Amps/s
E
5000
400
630
1
2
CATV Line Amplifiers/Power Inserters ME SIDACtor Device
2004 Littelfuse, Inc.
2 - 63
http://www.littelfuse.com
SIDACtor
Data Book and Design Guide
+1 972-580-7777
D
a
ta
S
h
e
e
ts
* R
JC
rating assumes the use of a heat sink and on state mode for extended time at 25 A, with average power dissipation of 29.125 W.
Thermal Considerations
Package
Symbol
Parameter
Value
Unit
TO-218
T
J
Operating Junction Temperature Range
-40 to +150
C
T
S
Storage Temperature Range
-65 to +150
C
T
C
Maximum Case Temperature
100
C
R
JC *
Thermal Resistance: Junction to Case
1.7
C/W
R
JA
Thermal Resistance: Junction to Ambient
56
C/W
1
2
3
2
(No
Connection)
I
H
I
T
I
S
I
DRM
V
DRM
V
T
+V
-V
+I
-I
V
S
I
H
I
T
I
S
I
DRM
V
DRM
V
T
+V
-V
+I
-I
V
S
V-I Characteristics
50
100
0
t
r
t
d
0
Peak
Value
Half Value
t Time (s)
I
PP
P
eak Pulse Current %I
PP
t
r
= rise time to peak value
t
d
= decay time to half value
Waveform = t
r
x t
d
t
r
x t
d
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 (T
J
) C
P
ercent of
V
S
Change %
25 C
Normalized V
S
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
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