PolySwitch LVR/LVRL
Line Voltage Rated Devices
PolySwitch 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 PolySwitch LVR product line of polymeric positive thermal coefficient (PPTC) line voltage
devices includes components that are rated for line voltages of 120 VAC and 240 VAC, for up to 2A
of operating current at 20°C. They help protect against damage caused by both overcurrent surges
and overtemperature faults, offer low resistance, and are compatibly sized with fuse solutions.
Unlike single-use 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 flexibility, longer lifespan, and lower EMI.
The PolySwitch LVR devices' resettable functionality and latching attributes make them a reliable, cost-effective circuit protection solu-
tion for both intermittent- and continuous-operation motor applications. Their low resistance, fast time-to-trip, and low profile help circuit
designers provide a safe and dependable product, comply with regulatory agency requirements, and reduce warranty repair costs.
Benefits:
• Reduced board space and assembly
• Reduced repair and replacement cost
• Fast time-to-trip helps reduce current-
generated heat to motor windings and
sensitive electronic components
• Reduced nuisance tripping
Electrical Characteristics
Part
Number
LVR005K
LVR005S
LVR008K
LVR008S
LVR012K
LVR012S
LVR016K
LVR016S
LVR025K
LVR025S
LVR033S
LVR033K
LVR040K
LVR040S
LVR055K
LVR055S
LVR075S
LVR100S
LVR125S
LVR200S
LVRL075S
LVRL100S
LVRL125S
LVRL135S
LVRL200S
I
HOLD
(A)
0.05
0.05
0.08
0.08
0.12
0.12
0.16
0.16
0.25
0.25
0.33
0.33
0.40
0.40
0.55
0.55
0.75
1.00
1.25
2.00
0.75
1.00
1.25
1.35
2.00
I
TRIP
(A)
0.12
0.12
0.19
0.19
0.30
0.30
0.37
0.37
0.56
0.56
0.74
0.74
0.90
0.90
1.25
1.25
1.5
2.00
2.50
4.00
1.52
2.00
2.50
2.70
4.20
V
MAX
(V)
240
240
240
240
240
240
240
240
240
240
240
240
240
240
240
240
240
240
240
240
120
120
120
120
120
Features:
• Overcurrent and overtemperature protec-
tion in a single component
• Resettable functionality
• Latching device
• Compliant with UL 1434 safety standards
Applications:
•
•
•
•
•
•
Continuous-operation motors
Intermittent-operation motors
Transformers
Power supplies
Fans and blowers
Electronic controllers
V
MAX
Interrupt
(VAC)
265
265
265
265
265
265
265
265
265
265
265
265
265
265
265
265
265
265
265
265
135
135
135
135
135
I
MAX
Interrupt
(A)
1.0
1.0
1.2
1.2
1.2
1.2
2.0
2.0
3.5
3.5
4.5
4.5
5.5
5.5
7.0
7.0
7.5
10.0
12.5
20.0
7.5
10.0
12.5
13.5
20.0
Power
Dissipation Typ
(W)
0.7
0.7
0.8
0.8
1.0
1.0
1.4
1.4
1.5
1.5
1.7
1.7
2.0
2.0
3.4
3.4
2.6
2.9
3.3
4.5
1.8
2.2
2.0
2.8
3.9
Max.
Time-to-trip
(A)
(s)
0.25
0.25
0.40
0.40
0.60
0.60
0.80
0.80
1.25
1.25
1.65
1.65
2.00
2.00
2.75
2.75
3.75
5.00
6.25
10.00
3.75
5.00
6.25
6.75
10.00
15.0
15.0
15.0
15.0
15.0
15.0
15.0
15.0
18.5
18.5
21.0
21.0
24.0
24.0
26.0
26.0
18.0
21.0
23.0
28.0
14.0
13.6
18.0
20.0
36.0
R
MIN
(Ω)
18.50
18.50
7.40
7.40
3.00
3.00
2.50
2.50
1.30
1.30
0.77
0.77
0.60
0.60
0.45
0.45
0.32
0.22
0.17
0.09
0.25
0.18
0.12
0.11
0.08
R
MAX
(Ω)
31.00
31.00
12.00
12.00
6.50
6.50
4.10
4.10
2.10
2.10
1.24
1.24
0.97
0.97
0.73
0.73
0.48
0.33
0.18
0.13
0.40
0.27
0.18
0.17
0.12
R
1 MAX
(Ω)
65.00
65.00
26.00
26.00
12.00
12.00
7.80
7.80
3.80
3.80
2.60
2.60
1.90
1.90
1.45
1.45
0.84
0.58
0.44
0.22
0.69
0.47
0.32
0.30
0.21
Lead Size
[mm2 (AWG)]
[0.205mm2(24)]
[0.205mm2(24)]
[0.205mm2(24)]
[0.205mm2(24)]
[0.205mm2(24)]
[0.205mm2(24)]
[0.205mm2(24)]
[0.205mm2(24)]
[0.33mm2(22)]
[0.33mm2(22)]
[0.33mm2(22)]
[0.33mm2(22)]
[0.33mm2(22)]
[0.33mm2(22)]
[0.81mm2(20)]
[0.81mm2(20)]
[0.81mm2(20)]
[0.81mm2(20)]
[0.81mm2(20)]
[0.81mm2(20)]
[0.81mm2(20)]
[0.81mm2(20)]
[0.81mm2(20)]
[0.81mm2(20)]
[0.81mm2(20)]
NEW
NEW
NEW
NEW
www.circuitprotection.com
Physical Characteristics
Lead material
LVR005-016: Tin-plated copper, 0.205mm2 (24AWG), ø0.51mm (0.020in.)
LVR025-040: Tin-plated copper, 0.32mm2 (22AWG), ø0.64mm (0.025in.)
LVR055-200: Tin-plated copper, 0.52mm2 (20AWG), ø0.81mm (0.032in.)
LVRL: Tin-plated copper, 0.52mm2 (20AWG), ø0.81mm (0.032in.)
LVR005-055: Cured flame retardant epoxy polymer, meets UL94V-0
LVR075-200: Cured flame retardant modified silicone meets UL94V-0
LVRL: Cured flame retardant epoxy polymer, meets UL94V-0
Solderability pre ANSI/J-STD-002 Category 3
Per IEC-STD 68-2-20, Test Tb, Method1a, condition b, can withstand
10 seconds at 260°C ±5°C
Insulating material
Soldering characteristics
Solder heat withstand
Devices are not designed to be placed through a reflow process.
Environmental Characteristics
Test
Passive aging
Conditions
70°C, 1000 hours
85°C, 1000 hours
Humidity aging
Thermal Shock
Solvent resistance
85°C, 85%RH, 1000 hours
85°C, -40°C (10 times)
MIL-STD-202, Method 215F
Resistance Change
±5%
±5%
±5%
±5%
No change
WARNING: Application Limitations for the LVR Product Line
1) Users should independently evaluate the suitability of and test each
product selected for their own application.
2) This product should not be used in an application where the maximum
interrupt voltage or maximum interrupt current can be exceeded in a
fault condition. Operation beyond the maximum ratings or improper
use may result in device damage and possible electrical arcing and
flame.
3) 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 locations.
4) The devices are intended for protection against occasional overcurrent
or overtemperature fault conditions and should not be used when
repeated fault conditions or prolonged trip events are anticipated.
5) In most applications, power must be removed and the fault condition
cleared in order to reset a PPTC device. However, under certain
unusual conditions, a PPTC device may automatically reset. According-
ly, in applications where an automatic reset could create a safety haz-
ard, such as garbage disposals and blenders, appropriate qualification
testing should be performed.
6) It is the responsibility of the user to determine the need for back up or
fail safe protection to prevent damage that may occur in the event of
abnormal function or failure of the PPTC device.
7) Operation in circuits with a large inductance can generate a circuit volt-
age (Ldi/dt) above the rated voltage of a PPTC device.
8) Devices are not recommended for reflow soldering.
9) Device performance can be impacted negatively if devices are handled
in a manner inconsistent with recommended electronic, thermal, or
mechanical procedures for electronic components.
10) PTC 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 in rigid housings,
which lack adequate clearance to accommodate device expansion.
11) Contamination of the PPTC material with certain silicone-based oils or
some aggressive solvents can adversely impact the performance of
the devices.
Worldwide Headquarters
308 Constitution Drive, MS R21/2A
Menlo Park, CA USA 94025-1164
Tel
Fax
(800) 227-7040
(650) 361-6900
(650) 361-2508
www.circuitprotection.com
www.circuitprotection.com.hk (Chinese)
www.raychem.co.jp/polyswitch (Japanese)
Raychem, PolySwitch, and Tyco are trademarks. All information, including illustrations, is believed to be reliable. Users, however, should independently evaluate the suitability of each product for their application.
Tyco Electronics Corporation makes no warranties as to the accuracy or completeness of the information, and disclaims any liability regarding its use. Tyco Electronics’ only obligations are those in the Company’s
Standard Terms and Conditions of Sale for this product, and in no case will Tyco Electronics be liable for any incidental, indirect, or consequential damages arising from the sale, resale, use or misuse of the prod-
uct. Specifications are subject to change without notice. In addition, Tyco Electronics reserves the right to make changes—without notification to Buyer—to materials or processing that do not affect compliance
with any applicable specification.
© 2007 Tyco Electronics Corporation. Printed in USA. RCP0112.0207
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