ADVANCED THERMAL PRODUCTS, INC.
SURGE CURRENT
LIMITERS
T
DATA SHEET
S300
D
ATP Surge Current Limiters are a cost-effective way
of limiting the inrush of current that can damage
components in switching power supplies or other
electronic devices.
These specially formulated NTC Thermistors have an
initial high resistance that can limit current surge for up to
several seconds. During this time, the heat generated
within the device causes the resistance to decrease to a
very low level. The resulting voltage drop across the
Surge Current Limiter is negligible.
1.5"
MIN.
0.310"
NOM.
0.10"
NOM.
Surge Limiters are available in standard configurations,
with a wide range of resistance and current carrying
capabilities to fit your needs. They also can be custom
designed to meet a variety of resistance, tolerance,
size, lead configuration, and custom package
specifications.
Part
Number
SCL32 0R530
SCL22 0R712
SCL22 1R020
SCL32 1R030
SCL10 1R308
SCL22 2R018
SCL15 2R508
SCL15 2R509
SCL22 2R515
SCL15 4R008
SCL10 5R003
SCL12 5R004
SCL15 5R005
SCL15 5R006
SCL15 5R007
SCL22 5R012
SCL22 7R005
SCL10 10002
SCL10 10003
SCL15 10004
SCL22 10005
SCL15 10006
SCL12 16003
SCL15 16004
SCL12 20002
SCL15 25003
SCL15 47003
SCL12 50002
SCL15 12102
SCL15 22102
Maximum Resistance @
Resistance Steady State Max Steady
Current
State Current
@ 25˚C
(Amperes)
(Ohms)
(Ohms)
0.5
0.7
1
1
1.3
2
2.5
2.5
2.5
4
5
5
5
5
5
5
7
10
10
10
10
10
16
16
20
25
47
50
120
220
30
12
20
30
8
18
8
9
15
8
2.8
4
5
6
7
12
5
2
3
4
5
6
2.7
4
2
3
3
2
2
2
0.01
0.02
0.02
0.02
0.05
0.03
0.07
0.04
0.03
0.07
0.25
0.17
0.15
0.1
0.07
0.06
0.16
0.3
0.2
0.21
0.2
0.15
0.4
0.27
0.5
0.4
0.5
0.72
1.18
0.8
“D”
Maximum
Coated Diameter
(mm)
(inches)
32
22
22
32
9.5
22
15
15
22
15
9.5
11.5
15
15
15
22
22
9.5
9.5
15
22
15
11.5
15
11.5
15
15
11.5
15
15
1.26
0.866
0.866
1.26
0.374
0.866
0.591
0.591
0.866
0.591
0.374
0.453
0.591
0.591
0.591
0.866
0.866
0.374
0.374
0.591
0.866
0.591
0.453
0.591
0.453
0.591
0.591
0.453
0.591
0.591
“T”
Maximum
Coated Thickness
(mm)
(inches)
8
6
6
6
5
6
6
6
6
6
5
5
6
6
6
6
6
5
5
6
6
6
5
6
5
6
6
5
6
5
0.327
0.245
0.245
0.245
0.204
0.245
0.245
0.245
0.245
0.245
0.204
0.204
0.245
0.245
0.245
0.245
0.245
0.204
0.204
0.245
0.245
0.245
0.204
0.245
0.204
0.245
0.245
0.204
0.245
0.204
Lead Diameter
(mm)
(inches)
1
1
1
1
0.8
1
0.8
0.8
1
0.8
0.8
0.8
0.8
0.8
0.8
1
1
0.8
0.8
0.8
1
0.8
0.8
0.8
1
0.8
0.8
0.8
0.8
0.8
0.04
0.04
0.04
0.04
0.032
0.04
0.032
0.032
0.04
0.032
0.032
0.032
0.032
0.032
0.032
0.032
0.04
0.04
0.032
0.032
0.032
0.04
0.032
0.032
0.032
0.032
0.032
0.032
0.032
0.032
P.O. Box 249 • 328 Ridgway Road • St. Marys, PA 15857 • Phone 814-834-1541 • Fax 814-834-1556 • E-mail sales@atpsensor.com • Web Page www.atpsensor.com
Surge
Current
Limiter
Specifications
Resistance @ 25˚ C,
±
20% ...................... 0.5 To 220 ohms
Maximum Steady State Current ................ 1 to 30 amperes
Resistance at Maximum
Steady State Current ................................. 0.01 to 2.34 ohms
Operating Temperature ............................. -40˚ to +185˚C
Storage Temperature ................................ -40˚ to +220˚C
Surge Current Life ..................................... -15%, +10% Maximum
v
R @25˚C
Load Life ................................................... -15%, +10% Maximum
v
R @25˚C
Temperature Cycle .................................... -15%, +10% Maximum
v
R @25˚C
Moisture Resistance .................................. -15%, +10% Maximum
v
R @25˚C
Lead Pull Strength ..................................... 1 kg, applied in axial direction
Solderability of Leads ................................ More than 95%
Soldering Heat Resistance ........................ -15%, +10% Maximum
v
R @25˚C
Construction .............................................. Straight or kinked tinned copper leads
Coating ...................................................... Black silicone or epoxy
Physical Dimensions
Maximum Diameter ................................... 9.5 mm (0.374") to 32.0 mm (1.260")
Maximum Thickness ................................. 5.0 mm (0.204") to 8.0 mm (0.327")
Lead Diameter ........................................... 0.8 mm (0.032") to 1.0 mm (0.040")
ADVANCED THERMAL PRODUCTS, INC.
P.O. Box 249 • 328 Ridgway Road • St. Marys, PA 15857 • Phone 814-834-1541 • Fax 814-834-1556 • E-mail sales@atpsensor.com • Web Page www.atpsensor.com
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