PolySwitch Resettable Devices Line-Voltage-Rated Devices
PolySwitch Resettable Devices
Line-Voltage-Rated Devices
PolySwitch line-voltage-rated (LVR) devices help protect
electric motors and transformers used in commercial and
home appliances from damage caused by mechanical
overloads, overheating, stall, lost neutral and other
potentially harmful conditions.
The LVR line-voltage product line of polymeric positive
temperature coefficient (PPTC) devices includes
components that are rated for line voltages of 120V
AC
and 240V , for up to 2A of operating current at 20C.
AC
They help protect against damage caused by both
overcurrent surges and overtemperature faults. They
also offer low resistance and are compatibly sized with
fuse solutions.
Unlike traditional fuses, PolySwitch devices do not
require replacement after a fault event. After power has
been removed and the overcurrent condition eliminated,
the circuit is restored to normal operating condition.
Compared to bimetal breakers, they offer greater
exibility, longer lifespan and lower electromagnetic
interference (EMI).
The PolySwitch LVR devices resettable functionality and latching attributes make them a reliable, cost-effective
circuit protection solution for both intermittent- and continuous-operation motor applications. Their low
resistance, fast time-to-trip, and low prole help circuit designers provide a safe and dependable product, comply
with regulatory agency requirements and reduce warranty repair costs.
LVR/LVB series are suitable for line-voltage applications up to a continuous operating voltage of 240V /120V .
AC AC
RoHS versions of all products are available.
Benets Features
Choice of many devices helps provide engineers with RoHS compliant
design exibility
Broadest range of radial-leaded resettable devices
Compatible with high-volume electronics assembly available in the industry
Assist in meeting regulatory requirements Current ratings from 50mA to 2A
Higher voltage ratings allow use in new applications Line voltage rating of 120V and 240V
AC AC
Agency recognition: UL, CSA, TV
Fast time-to-trip
11
Low resistance
Applications
Electromagnetic loads Medical equipment Security and re alarm systems
Game machines Motors, fans and blowers Test and measurement equipment
Industrial controls POS equipment Transformers
Lighting ballasts Satellite video receivers USB hubs, ports and peripherals
Loudspeakers
RoHS Compliant, ELV Compliant
197
2013_CP_S11-Poly-5-LVR.indd 197 8/3/13 10:43 AMTable L1 Product Series - Current Rating, Voltage Rating / Typical Resistance for LVR Devices
LVR LVB
Voltage Rating 240V / 120V 240V
AC AC AC
Hold Current (A)
0.050 25.00V
0.080 9.800V
0.120 4.800V
0.160 3.400V
0.250 1.700V
0.330 1.000V
0.400 0.800V
0.550 0.590V
0.750 0.400V
1.000 0.276V
1.250 0.209V 0.209V
1.350
2.000 0.110V
Table L2 Thermal Derating for LVR Devices [Hold Current (A) at Ambient Temperature (C)]
Maximum Ambient Temperature
Part Number -20C 0C 20C 25C 40C 50C 60C 70C 85C
LVR
LVR005N 0.08 0.06 0.05 0.05 0.04 0.04 0.03 0.03 0.02
LVR008N 0.12 0.10 0.08 0.08 0.07 0.06 0.05 0.04 0.03
LVR012 0.18 0.15 0.12 0.12 0.10 0.09 0.07 0.06 0.04
LVR016 0.24 0.20 0.16 0.16 0.13 0.11 0.10 0.08 0.05
LVR025 0.38 0.32 0.25 0.25 0.21 0.18 0.15 0.13 0.09
LVR033 0.50 0.42 0.33 0.33 0.27 0.23 0.20 0.17 0.11
LVR040 0.61 0.51 0.40 0.40 0.33 0.28 0.24 0.20 0.14
LVR055 0.80 0.68 0.55 0.54 0.46 0.40 0.35 0.29 0.22
LVR075 1.23 0.98 0.75 0.74 0.60 0.56 0.49 0.45 0.41
LVR100 1.65 1.30 1.00 0.94 0.80 0.75 0.65 0.60 0.55
LVR125 2.06 1.63 1.25 1.20 1.00 0.94 0.81 0.75 0.69
LVR200 3.30 2.60 2.00 1.97 1.60 1.50 1.30 1.20 1.10
LVR075-240 1.23 0.98 0.75 0.74 0.60 0.56 0.49 0.45 0.41
LVR100-240 1.65 1.30 1.00 0.94 0.80 0.75 0.65 0.60 0.55
LVR125-240 2.06 1.63 1.25 1.20 1.00 0.94 0.81 0.75 0.69
LVR200-240 3.30 2.60 2.00 1.97 1.60 1.50 1.30 1.20 1.10
Maximum Ambient Temperature
Part Number -40C -20C 0C 20C 25C 40C 50C 60C 70C 85C
LVB
LVB125 2.09 1.81 1.53 1.25 1.19 0.99 0.86 0.73 0.60 0.41
Figure L1 Thermal Derating Curve for LVR Devices
180 180
AA
A = LVR075-LVR200
170 170 BB
160 160
B = LVB125
11 150 150
C = LVR005N-LVR055
140 140
CC
130 130
120 120
1110 10
100 100
90 90
80 80
70 70
60 60
AA
50 50
CC
40 40
30 30
BB
20 20
-40 -30 -20 -10 -40 -30 -20 -10 0 0 10 20 30 40 50 60 70 80 90 10 20 30 40 50 60 70 80 90
Ambient TAmbient Temperature emperature (( ) )
RoHS Compliant, ELV Compliant
198
2013_CP_S11-Poly-5-LVR.indd 198 8/3/13 10:43 AM
% Rated Hold and% Rated Hold and TTrip Current rip Current