Radial Lead Resettable Polymer PTCs
UN250 Series
Description
UN250 Series is designed to protect against short duration
high voltage fault currents (power cross or power induction
surge) typically used in AC220V.
Features
u
0.02-2.0A hold current rating
265V operating voltage
u
u
u
Fast time-to- trip
RoHS compliant, Lead-Free and Halogen-Free
Applicable
u
u
u
AC220V over-current protection
Power ports
Customer Premises Equipment(CPE)
Electrical Parameters
Maximum Time
To Trip
Resistance
V max
(Vdc)
I max
(A)
P dtyp.
(W)
Part Number
I hold (A)
I trip (A)
Current
Time
R min
R max
R 1max
(A)
(Sec.)
(Ω)
(Ω)
(Ω)
UN250-020
UN250-030
UN250-040
UN250-050
UN250-060
UN250-080
UN250-120-C
UN250-120-S
UN250-160
UN250-200-C
UN250-200-S
UN250-250
UN250-300
UN250-330
UN250-400
UN250-500
UN250-550
UN250-600
UN250-650
UN250-750
0.020
0.030
0.040
0.050
0.060
0.080
0.120
0.120
0.160
0.200
0.200
0.250
0.300
0.330
0.400
0.500
0.550
0.600
0.650
0.750
0.04
265
265
265
265
265
265
265
265
265
265
265
265
265
265
265
265
265
265
265
265
1.0
1.0
1.0
1.0
1.0
1.2
12
0.6
0.6
0.7
0.7
0.8
0.8
1.0
1.0
1.4
1.5
1.5
1.5
1.7
1.7
2.0
2.5
2.5
2.5
2.6
2.6
0.06
20
15
15
15
15
15
15
15
25
25
25
20
20
20
25
25
25
25
30
30
65.0
36.0
27.0
22.0
18.0
11.0
6.0
165.0
90.0
65.0
55.0
45.0
22.0
12.0
12.0
7.8
225.0
120.0
90.0
75.0
60.0
33.0
16.0
16.0
10.4
8.0
0.065
0.080
0.10
0.09
0.12
0.15
0.18
0.24
0.36
0.36
0.48
0.60
0.60
0.75
0.90
0.99
1.20
1.50
1.65
1.80
1.95
2.25
0.120
0.160
0.240
0.240
0.320
0.400
0.400
0.500
0.600
0.660
0.800
1.000
1.100
1.200
1.300
1.500
1.2
2.0
3.0
3.0
3.5
4.5
4.5
5.5
6.5
7.0
6.0
6.5
7.5
6.0
3.5
3.0
6.5
3.0
6.5
8.0
2.2
5.0
5.0
1.8
4.0
4.8
1.6
3.6
4.3
1.35
0.90
0.85
0.80
0.65
0.55
3.0
3.6
2.0
2.4
1.8
2.2
1.65
1.3
2.2
1.6
1.1
1.3
UN Semiconductor Co., Ltd.
www.unsemi.com.tw
@ UN Semiconductor Co., Ltd. 2013
Revision October 18, 2013
1 / 5
Specifications are subject to change without notice.
Please refer to www.unsemi.com.tw for current information.