Radial Lead Resettable Polymer PTCs
UN600 Series
Description
The UN600 Series is designed to protect against power fault
events typically found in telecom applications. This series is
designed to be used in applications that need to meet the
requirements of GR-1089-CORE and UL60950 / EN60950 /
IEC60950. These resettable devices also help to meet the
requirements of ITU K.20, K.21 and K.44.
Features
u
u
u
u
u
0.11-0.20A hold current range
600VAC interrupt rating
Fast time-to-trip
Binned and shorted narrow resistance ranges available
RoHS compliant, Lead-Free and Halogen-Free
Applicable
Secondary over-current protection for:
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Central Office Equipment (CO)
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Customer Premises Equipment (CPE)
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Alarm systems
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Set Top Boxes (STB)
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Voice over IP (VOIP)
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Subscriber Line Interface Circuit (SLIC)
Electrical Parameters
V
maxi
(Vdc)
600
600
600
600
I
max
(A)
3
3
3
3
P
dtyp.
(W)
1.0
1.0
1.0
1.0
Maximum Time
To Trip
Current
(A)
1.0
1.0
1.0
1.0
Time
(Sec.)
5.0
6.0
7.5
12.0
R
min
(mΩ)
7.5
6.0
5.0
4.5
Resistance
R
max
(mΩ)
18
15
12
11
R
1max
(mΩ)
27
22
18
16
Part Number
I
hold
(A)
I
trip
(A)
UN600-110
UN600-150
UN600-160
UN600-200
0.11
0.15
0.16
0.20
0.22
0.30
0.32
0.40
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 (V
max
)
P
dtyp.
= 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.
UN Semiconductor Co., Ltd.
Revision
October 18, 2013
www.unsemi.com.tw
1/4
@ UN Semiconductor Co., Ltd. 2013
Specifications are subject to change without notice.
Please refer to www.unsemi.com.tw for current information.
Radial Lead Resettable Polymer PTCs
UN600 Series
Temperature Rerating Chart
–
I
hold
(A)
Ambient Operation Temperature
Part Number
-40°C
-20°C
0°C
25°C
40°C
Hold Current (A)
UN600-110
UN600-150
UN600-160
UN600-200
0.171
0.233
0.249
0.310
0.151
0.206
0.219
0.275
0.131
0.178
0.190
0.238
0.110
0.150
0.160
0.200
0.091
0.124
0.132
0.165
0.081
0.110
0.117
0.147
0.071
0.096
0.103
0.129
0.061
0.083
0.088
0.110
0.046
0.062
0.066
0.083
50°C
60°C
70°C
85°C
Average Time Current Curves
Temperature Rerating Curve
Percentage of Rated Current
Time in Seconds
Current in Amperes
Temperature (°C)
A=UN600-110
B=UN600-150
C=UN600-160
D=UN600-200
UN Semiconductor Co., Ltd.
Revision
October 18, 2013
www.unsemi.com.tw
2/4
@ UN Semiconductor Co., Ltd. 2013
Specifications are subject to change without notice.
Please refer to www.unsemi.com.tw for current information.
Radial Lead Resettable Polymer PTCs
UN600 Series
Test Procedures and Requirement
Test
Resistance
Hold Current
Time to Trip
Frequency Current withstand
Failure mode
Test Conditions
In still air @25±2°C
60 min, at I
hold
, In still air @25±2°C
Specified current, V
max
, @25±2°C
380V / I
max,
20 cycle
V
maxi
/ 5A, 60 minute
R
min
≤R≤R
max
No trip
T≤Maximum Time To Trip
Resistance of the variation of the poor value:≤30%
No buming
Accept/Reject Criteria
Soldering Parameters
Refer to the condition recommended
by the manufacturer. Max. ramping
rate should not exceed 4°C/Sec
Max. solder temperature should not
exceed 260°C
Cooling by natural convection in air
Pre-Heating Zone
Soldering Zone
Cooling Zone
Physical Specifications
Lead Material
Soldering
Characteristics
Insulating Material
Device Labeling
Tin-plated Copper
Solder ability per MIL-STD-202, Method 208E
Cured,
flame
retardant epoxy polymer meets UL 94V-0
requirements.
Marked with
‘UN’,
voltage, current rating
Part Numbering
Part Marking
UN XX - XXX
I
hold
Current
Voltage Rating (Vdc)
Series Name
Trademark
UN XX
XXX
Voltage Rating (Vdc)
I
hold
Current
UN Semiconductor Co., Ltd.
Revision
October 18, 2013
www.unsemi.com.tw
3/4
@ UN Semiconductor Co., Ltd. 2013
Specifications are subject to change without notice.
Please refer to www.unsemi.com.tw for current information.
Radial Lead Resettable Polymer PTCs
UN600 Series
Dimensions
Figure1
A
Part
Number
Figure
mm
Max.
UN600-110
UN600-150
UN600-160
UN600-200
Figure1
Figure1
Figure1
Figure1
15.0
15.0
15.0
15.0
15.0
15.0
15.0
15.0
B
mm
Max.
C
mm
Typ.
5.1±0.5
5.1±0.5
5.1±0.5
5.1±0.5
6.5
6.5
6.5
6.5
D
mm
Mm
Max.
0.6
0.6
0.6
0.6
500
500
500
500
Lead (dia)
Packaging
(Bulk Pack)
Warning
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This product should not be used in an application where the maximum interrupt voltage or maximum interrupt current in a fault
condition, Operation beyond the maximum rating or improper use may result in device damage and possible electrical arcing
and flame.
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A PPTC device is not a fuse, It is a nonlinear thermistor that limits current, Because under a fault condition all PPTC devices go
into a high resistance state but not open circuit hazardous voltage may be present at PPTC.
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The devices are intended for protection against occasional over-current or over-temperature fault conditions and should not be
used when repeated fault conditions or prolonged trip events.
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In most application, power must be removed and the fault condition cleared in order to reset a PPTC device.
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PPTC devices are not recommended to be installed in applications where the device is constrained such that its PPTC
properties are inhibited, for example in rigid potting materials or Add devices surface coating, Bundled devices ontology, which
lack adequate clearance to accommodate device expansion.
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Contamination on of the PPTC material with certain silicone-based oils or some aggressive solvents can adversely impact the
performance of the devices. For example, Organic solvents to cleaning.
UN Semiconductor Co., Ltd.
Revision
October 18, 2013
www.unsemi.com.tw
4/4
@ UN Semiconductor Co., Ltd. 2013
Specifications are subject to change without notice.
Please refer to www.unsemi.com.tw for current information.
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