SC250-080 Datasheet, PDF (1/4 Pages) Socay Electornics Co., Ltd. – Radial Lead Resettable Polymer PTCs

Radial Lead Resettable Polymer PTCs
SC250 Series
Description
The SC250 Series is designed to protect against short
duration high voltage fault currents (power cross or power
induction surge) typically found in telecom applications
(250Vrms). The series can be used to help telecom
networking equipment meet the protection requirements
specified in ITU K.20 and K.21.
Features
u 0.08-0.18A hold current range
u 250VAC interrupt rating
u Fast time-to-trip
u Binned and shorted narrow resistance ranges available
u RoHS compliant, Lead-Free and Halogen-Free
Applicable
u Customer Premises Equipment (CPE)
u Central Office (CO) / telecom centers
u Power ports
u LAN / WAN equipment
u Access equipment
Electrical Parameters
Part Number
I hold (A) I trip (A)
V maxi
(Vac)
I max
(A)
P dtyp.
(W)
Maximum Time
To Trip
Current
(A)
Time
(Sec.)
R min
(mΩ)
SC250-080
0.08
0.16
250
3.0
0.8
0.35
4.0
11.0
SC250-090
0.09
0.18
250
3.0
0.8
0.35
5.0
9.0
SC250-110
0.11
0.22
250
3.0
1.0
1.00
0.75
6.0
SC250-120
0.12
0.24
250
3.0
1.0
1.00
1.50
4.0
SC250-120T
0.12
0.24
250
3.0
1.0
1.00
0.75
6.0
SC250-145
0.145
0.29
250
3.0
1.0
1.00
2.50
3.0
SC250-145T
0.145
0.29
250
3.0
1.0
1.00
1.50
4.5
SC250-180C
0.18
0.65
250
10.0
1.5
3.00
0.50
1.6
SC250-180S
0.18
0.65
250
10.0
1.5
3.00
0.50
1.6
I hold= Hold current: maximum current device will pass without tripping in 25°C still air.
I trip= Trip current: minimum current at which the device will trip in 25°C still air.
V maxi= Maximum voltage that can be safely placed across a device in its tripped state under specified fault conditions.
I max= Maximum fault current device can withstand without damage at rated voltage (Vmax)
Pdtyp.= Power dissipated from device when in the tripped state at 25°C still air.
R min= Minimum resistance of device in initial (un-soldered) state.
R max= Maximum resistance of device in initial (un-soldered) state.
R 1max= Maximum resistance of device at 25°C measured one hour after tripping.
Caution: Operation beyond the specified rating may result in damage and possible arcing and flame.
Resistance
R max
(mΩ)
22.0
18.0
12.0
8.0
12.0
6.0
9.0
3.2
3.2
R 1max
(mΩ)
33.0
27.0
16.0
16.0
16.0
14.0
14.0
4.0
4.0
SOCAY Electronics Co., Ltd.
Revision September 12, 2013
1/4
www.socay.com
@ SOCAY Electronics Co., Ltd. 2013
Specifications are subject to change without notice.
Please refer to www.socay.com for current information.