LITTELFUSE LVR012S Datasheet

PolySwitch Resettable Devices

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 LVR line-voltage product line of polymeric positive temperature coefficient (PPTC) devices includes components that are rated for line voltages of 120V and 240VAC, 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 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 flexibility, longer lifespan, and lower electromagnetic interference (EMI).

PolySwitch Resettable Devices – Line-Voltage-Rated Devices

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 profile help circuit designers provide a safe and dependable product, comply with regulatory agency requirements, and reduce warranty repair costs.

LVR/LVRL series are suitable for line-voltage applications up to a continuous operating voltage of 240V

RoHS versions of all products are available.

/120VAC.

Benefits Features

• Many product choices give engineers more design flexibility

• Compatible with high-volume electronics assembly

• Assist in meeting regulatory requirements

• Higher voltage ratings allow use in new applications

• RoHS compliant

• Broadest range of radial-leaded resettable devices available in the industry

• Current ratings from 50mA to 2A

• Line voltage rating of 120V

• Agency recognition : UL, CSA, TÜV

• Fast time-to-trip

• Low resistance

and 240V

Applications

• Electromagnetic loads

• Game machines

• Industrial controls

• Lighting ballast

• Loudspeakers

• Medical equipment

• Motors, fans and blowers

• POS equipment

• Satellite video receivers

• Security and fire alarm systems

• Test and measurement equipment

• Transformers

• USB hubs, ports and peripherals

163

% of rated hold and trip current

Ambient Temperature (˚C)

180

170

160

150

140

130

120

110

100

-30 -20 -10 0 10 20 30 40 50 60 70 80 90

Table L1 Product Series - Current Rating, Voltage Rating / Typical Resistance for LVR Devices

Voltage Rating

240V

LVR

/ 120V

Hold Current (A)

0.050 25.00Ω —

0.080 9.800Ω —

0.120 4.800Ω —

0.160 3.400Ω —

0.250 1.700Ω —

0.330 1.000Ω —

0.400 0.800Ω —

0.550 0.590Ω —

0.750 0.400Ω 0.325Ω

1.000 0.276Ω 0.224Ω

1.250 0.209Ω 0.148Ω

1.350 — 0.138Ω

2.000 0.110Ω 0.097Ω

LVRL

120V

Table L2 Thermal Derating for LVR Devices [Hold Current (A) at Ambient Temperature (°C)]

Maximum Ambient Temperature

Part Number -20°C 0°C 20°C 25°C 40°C 50°C 60°C 70°C 85°C

LVR/LVRL

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 LVRL075 1.08 0.93 0.75 0.74 0.64 0.57 0.51 0.44 0.35 LVRL100 1.40 1.19 1.00 0.94 0.82 0.73 0.65 0.57 0.45 LVRL125 1.80 1.53 1.25 1.20 1.04 0.94 0.83 0.73 0.60 LVRL135 2.00 1.65 1.35 1.29 1.12 1.01 0.90 0.78 0.65 LVRL200 3.05 2.55 2.00 1.97 1.72 1.55 1.39 1.22 0.98

Figure L1 Thermal Derating Curve for LVR Devices

A= LVR075-LVR200

B= LVRL075-LVRL200

164

C= LVR005N-LVR055

RoHS Compliant, ELV Compliant

Figure L1

Table L3 Electrical Characteristics for LVR Devices*

†

Part Number

(A)

Operating

(VAC)

MAX

Interrupt

(VAC)

LVR/LVRL

LVR005NK 0.05 0.12

LVR005NS 0.05 0.12

LVR008NK 0.08 0.19

LVR008NS 0.08 0.19

LVR012K 0.12 0.30

LVR012S 0.12 0.30

LVR016K 0.16 0.37

LVR016S 0.16 0.37

LVR025K 0.25 0.56

LVR025S 0.25 0.56

LVR033K 0.33 0.74

LVR033S 0.33 0.74

LVR040K 0.40 0.90

LVR040S 0.40 0.90

LVR055K 0.55 1.25

LVR055S 0.55 1.25

240 265 1.0 120 135 20.0 240 265 1.0 120 135 20.0 240 265 1.2 120 135 20.0 240 265 1.2 120 135 20.0 240 265 1.2 120 135 20.0 240 265 1.2 120 135 20.0 240 265 2.0 120 135 20.0 240 265 2.0 120 135 20.0 240 265 3.5 120 135 20.0 240 265 3.5 120 135 20.0 240 265 4.5 120 135 20.0 240 265 4.5 120 135 20.0 240 265 5.5 120 135 20.0 240 265 5.5 120 135 20.0 240 265 7.0 120 135 20.0 240 265 7.0

120 135 20.0 LVR075S 0.75 1.50 240 265 7.5 2.6 3.75 18.0 0.316 0.483 0.839 [0.81mm(20)] LVR100S 1.00 2.00 240 265 10.0 2.9 5.00 21.0 0.218 0.334 0.580 [0.81mm(20)] LVR125S 1.25 2.50 240 265 12.5 3.3 6.25 23.0 0.165 0.253 0.440 [0.81mm(20)] LVR200S 2.00 4.00 240 265 20.0 4.5 10.00 28.0 0.089 0.131 0.221 [0.81mm(20)] LVRL075S 0.75 1.52 120 135 7.5 1.8 3.75 14.0 0.250 0.400 0.690 [0.81mm(20)] LVRL100S 1.00 2.00 120 135 10.0 2.2 5.00 13.6 0.179 0.269 0.470 [0.81mm(20)] LVRL125S 1.25 2.50 120 135 12.5 2.0 6.25 18.0 0.117 0.179 0.320 [0.81mm(20)] LVRL135S 1.35 2.70 120 135 13.5 2.8 6.75 20.0 0.109 0.167 0.300 [0.81mm(20)] LVRL200S 2.00 4.20 120 135 20.0 3.9 10.00 36.0 0.075 0.117 0.205 [0.81mm(20)]

Notes:

MAX

MIN

MAX

1MAX

* Electrical characteristics determined at 20°C. † See Application Limitations on next page.

: Hold current: maximum current device will pass without interruption in 20°C still air.

: Trip current: minimum current that will switch the device from low resistance to high resistance in 20°C still air. Operating: Maximum continuous voltage device can withstand without damage at rated current. Interrupt : Under specified conditions this is the highest voltage that can be applied to the device at the maximum interrupt current.

Interrupt : Maximum fault current device can withstand without damage at rated voltage.

: Power dissipated from device when in the tripped state in 20°C still air.

: Minimum resistance of device as supplied at 20°C unless otherwise specified.

: Maximum resistance of device as supplied at 20°C unless otherwise specified.

Maximum resistance of device when measured one hour post trip at 20°C unless otherwise specified.

†

MAX

Interrupt

(A)

D Typ

(W)

Max.Time-to-trip

(A) (s)

(Ω)

MIN

MAX

(Ω)

1MAX

(Ω)

Lead Size

[mm (AWG)]

0.9 0.25 10.0 18.500 31.000 65.000 [0.51mm(24)]

0.9 0.40 10.0 7.400 12.000 26.000 [0.51mm(24)]

1.0 0.60 15.0 3.000 6.500 12.000 [0.51mm(24)]

1.4 0.80 15.0 2.500 4.100 7.800 [0.51mm(24)]

1.5 1.25 18.5 1.300 2.100 3.800 [0.64mm(22)]

1.7 1.65 21.0 0.770 1.240 2.600 [0.64mm(22)]

2.0 2.00 24.0 0.600 0.970 1.900 [0.64mm(22)]

3.4 2.75 26.0 0.450 0.730 1.450 [0.81mm(20)]

PolySwitch Resettable Devices – Line-Voltage-Rated Devices

RoHS Compliant, ELV Compliant

165

LCL

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. Under a fault condition all PPTC devices go into a high resistance state but do not open circuit, so hazardous voltage may be present at PPTC locations.

4) The devices are intended for protection against damage caused by 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. PPTC devices should not be used in an application where an automatic reset could create a safety hazard, 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 failsafe protection to prevent damage that may occur in the event of abnormal function or failure of the PPTC device.

7) Operationin circuits with alarge inductance can generatea circuit voltage (Ldi/dt) above the rated voltage of a PPTC device.This product should not be used in an application where the maximum interrupt voltage or maximum interrupt current can be exceeded by inductive spikes.

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) PPTC devices are not recommended for installation in applications where the device is constrained such that its PTC 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.

Figure L2-L5 Dimension Figures for LVR Devices

Figure L2

Figure L4

Figure L3

Figure L5

166

RoHS Compliant, ELV Compliant

Table L4 Dimensions for LVR Devices in Millimeters (Inches)

PolySwitch Resettable Devices – Line-Voltage-Rated Devices

Part Number

LVR/LVRL

LVR005NK — 6.9 — 12.1 4.3 5.8 7.6 ——4.6

LVR005NS — 6.9 — 9.9 4.3 5.8 7.6 ——4.6

LVR008NK — 7.2 — 12.4 4.3 5.8 7.6 ——4.6

LVR008NS — 7.2 — 10.2 4.3 5.8 7.6 ——4.6

LVR012K — 8.3 — 12.9 4.3 5.8 7.6 ——3.8

LVR012S — 8.3 — 10.7 4.3 5.8 7.6 ——3.8

LVR016K — 9.9 — 13.8 4.3 5.8 7.6 ——3.8

LVR016S — 9.9 — 12.5 4.3 5.8 7.6 ——3.8

LVR025K — 9.6 — 18.8 4.3 5.8 7.6 ——3.8

LVR025S — 9.6 — 17.4 4.3 5.8 7.6 ——3.8

LVR033K — 11.4 — 19.0 4.3 5.8 7.6 ——3.8

LVR033S — 11.4 — 16.5 4.3 5.8 7.6 ——3.8

LVR040K — 11.5 — 20.9 4.3 5.8 7.6 ——3.8

LVR040S — 11.5 — 19.5 4.3 5.8 7.6 ——3.8

LVR055K — 14.0 — 22.4 4.3 5.8 7.6 ——4.1

LVR055S — 14.0 — 21.7 4.3 5.8 7.6 ——4.1

LVR075S — 11.5 — 23.4 4.1 6.1 5.1 ——4.8

LVR100S — 18.7 — 24.4 8.9 11.4 5.1 ——5.1

LVR125S — 21.2 — 27.4 8.9 11.4 5.1 ——5.3

LVR200S — 24.9 — 33.8 8.9 11.4 5.1 ——6.1

LVRL075S — 10.9 — 17.0 4.3 5.8 7.6 ——4.1

LVRL100S — 11.5 — 20.1 4.3 5.8 7.6 ——4.1

LVRL125S — 14.0 — 21.7 4.3 5.8 7.6 ——4.1

LVRL135S — 16.3 — 21.7 4.3 5.8 7.6 ——4.1

LVRL200S — 23.5 — 31.8 9.4 10.9 7.6 ——4.1

Min. Max. Figure

(0.27) (0.48) (0.17) (0.23) (0.30) (0.18) L2

(0.27) (0.39) (0.17) (0.23) (0.30) (0.18) L4

(0.28) (0.49) (0.17) (0.23) (0.30) (0.18) L2

(0.28) (0.40) (0.17) (0.23) (0.30) (0.18) L4

(0.33) (0.51) (0.17) (0.23) (0.30) (0.15) L2

(0.33) (0.43) (0.17) (0.23) (0.30) (0.15) L4

(0.39) (0.54) (0.17) (0.23) (0.30) (0.15) L2

(0.39) (0.50) (0.17) (0.23) (0.30) (0.15) L4

(0.38) (0.74) (0.17) (0.23) (0.30) (0.15) L3

(0.38) (0.69) (0.17) (0.23) (0.30) (0.15) L5

(0.45) (0.75) (0.17) (0.23) (0.30) (0.15) L3

(0.45) (0.65) (0.17) (0.23) (0.30) (0.15) L5

(0.46) (0.82) (0.17) (0.23) (0.30) (0.15) L3

(0.46) (0.77) (0.17) (0.23) (0.30) (0.15) L5

(0.55) (0.88) (0.17) (0.23) (0.30) (0.16) L3

(0.55) (0.85) (0.17) (0.23) (0.30) (0.16) L5

(0.45) (0.92) (0.16) (0.24) (0.20) (0.19) L5

(0.74) (0.96) (0.35) (0.45) (0.20) (0.20) L4

(0.84) (1.08) (0.35) (0.45) (0.20) (0.21) L4

(0.98) (1.33) (0.35) (0.45) (0.20) (0.24) L5

(0.43) (0.67) (0.17) (0.23) (0.30) (0.16) L5

(0.45) (0.79) (0.17) (0.23) (0.30) (0.16) L5

(0.55) (0.85) (0.17) (0.23) (0.30) (0.16) L5

(0.64) (0.85) (0.17) (0.23) (0.30) (0.16) L5

(0.93) (1.25) (0.37) (0.43) (0.30) (0.16) L5

Min. Max.

RoHS Compliant, ELV Compliant

167

Time-to-trip (s)

Fault Current (A)

1000

100

0.1

10.1 10 100

Figure L6 Typical Time-to-trip curves at 20°C for LVR Devices

LVR/LVRL

A= LVR005N B= LVR008N C= LVR012 D= LVR016 E = LVR025 F = LVR033 G= LVR040

K= LVRL100 L= LVR100 M= LVRL125 N= LVR125 O= LVRL135 P= LVRL200 Q= LVR200

Figure L6

H= LVR055 I=LVRL075 J= LVR075

Table L5 Physical Characteristics and Environmental Specifications for LVR Devices

LVR/LVRL

Physical Characteristics

Lead material LVR005N-016 : Tin-plated copper, (24AWG), ø0.51mm (0.020in.)

LVR025-040 :Tin-plated copper, (22AWG), ø0.64mm (0.025in.) LVR055-200 :Tin-plated copper, (20AWG), ø0.81mm (0.032in.)

LVRL : Tin-plated copper, (20AWG), ø0.81mm (0.032in.) Soldering characteristics Solderability per ANSI/J-STD-002 Category 3 Solder heat withstand Per IEC-STD 68-2-20, TestTb, Method 1A, Condition B, can withstand 10 seconds at 260°C ±5°C Insulating material LVR005N-055 : Cured, flame-retardant epoxy polymer, meets UL 94V-0

LVR075-200 : Cured, flame-retardant modified silicone, meets UL 94V-0

LVRL : Cured, flame-retardant epoxy polymer, meets UL 94V-0

Note: Devices are not designed to be placed through a reflow process.

Environmental Specifications

Test Conditions Resistance Change

Passive aging 70°C, 1000 hours ±10%

85°C, 1000 hours ±10% Humidity aging 85°C, 85%RH, 1000 hours ±20% Thermal shock 85°C, -40°C (10 times) ±15% Solvent resistance MIL-STD-202, Method 215F No change

Agency Recognitions for LVR Devices

UL File # E74889 CSA File # CA78165 TÜV Certificate number available on request (per IEC 60730-1).

168

RoHS Compliant, ELV Compliant

Table L6 Packaging and Marking Information for LVR Devices

PolySwitch Resettable Devices – Line-Voltage-Rated Devices

Part Number

LVR/LVRL

LVR005NK 500 ——10,000 L005 UL,CSA,TÜV LVR005NK-2 — 1,500 — 7,500 L005 UL,CSA,TÜV LVR005NS 500 ——10,000 L005 UL,CSA,TÜV LVR005NS-2 — 1,500 — 7,500 L005 UL,CSA,TÜV LVR008NK 500 ——10,000 L008 UL,CSA,TÜV LVR008NK-2 — 1,500 — 7,500 L008 UL,CSA,TÜV LVR008NS 500 ——10,000 L008 UL,CSA,TÜV LVR008NS-2 — 1,500 — 7,500 L008 UL,CSA,TÜV LVR012K 500 ——10,000 L012 UL,CSA,TÜV LVR012K-2 — 2,000 — 10,000 L012 UL,CSA,TÜV LVR012S 500 ——10,000 L012 UL,CSA,TÜV LVR012S-2 — 2,000 — 10,000 L012 UL,CSA,TÜV LVR016K 500 ——10,000 L016 UL,CSA,TÜV LVR016K-2 — 2,000 — 10,000 L016 UL,CSA,TÜV LVR016S 500 ——10,000 L016 UL,CSA,TÜV LVR016S-2 — 2,000 — 10,000 L016 UL,CSA,TÜV LVR025K 500 ——10,000 L025 UL,CSA,TÜV LVR025K-2 — 2,000 — 10,000 L025 UL,CSA,TÜV LVR025S 500 ——10,000 L025 UL,CSA,TÜV LVR025S-2 — 2,000 — 10,000 L025 UL,CSA,TÜV LVR033K 500 ——10,000 L033 UL,CSA,TÜV LVR033K-2 — 2,000 — 10,000 L033 UL,CSA,TÜV LVR033S 500 ——10,000 L033 UL,CSA,TÜV LVR033S-2 — 2,000 — 10,000 L033 UL,CSA,TÜV LVR040K 500 ——10,000 L040 UL,CSA,TÜV LVR040K-2 — 2,000 — 10,000 L040 UL,CSA,TÜV LVR040S 500 ——10,000 L040 UL,CSA,TÜV LVR040S-2 — 2,000 — 10,000 L040 UL,CSA,TÜV LVR055K 500 ——10,000 L055 UL,CSA,TÜV LVR055S 500 ——10,000 L055 UL,CSA,TÜV LVR055S-2 — 1,000 — 5,000 L055 UL,CSA,TÜV LVR075S 500 ——10,000 L075 UL,CSA,TÜV LVR100S 250 —— 5,000 L100 UL,CSA, TÜV LVR125S 250 —— 5,000 L125 UL,CSA,TÜV LVR200S 250 —— 5,000 L200 UL,CSA, TÜV LVRL075S 500 ——10,000 L075 UL,CSA,TÜV LVRL100S 500 ——10,000 L100 UL,CSA,TÜV LVRL125S 500 ——10,000 L125 UL,CSA,TÜV LVRL135S 500 ——10,000 L135 UL,CSA,TÜV LVRL200S 250 —— 5,000 L200 UL,CSA,TÜV

Bag

Quantity

Tape & Reel

Quantity

Ammo Pack

Quantity

Standard Package

Quantity Part Marking Agency Recognition

RoHS Compliant, ELV Compliant

169

Table L7 Tape and Reel Specifications for LVR Devices

LVR devices are available in tape and reel packaging per EIA468-B/IEC60286-2 standards. See Figures L7 and L8 for details.

Description EIA Mark Dimension (mm) Tolerance

Carrier tape width W 18 -0.5/+1.0 Hold-down tape width W Top distance between tape edges W Sprocket hole position W Sprocket hole diameter D

Abscissa to plane (straight lead) (LVR005N to LVR016) H 18.5 ± 2.5 Abscissa to plane (kinked lead) (LVR005N to LVR016) H Abscissa to top (LVR005N to LVR016) H Abscissa to top* (LVR025 to LVR055) H Overall width with lead protrusion (LVR005N to LVR016) C Overall width with lead protrusion (LVR025 to LVR055) C Overall width without lead protrusion (LVR005N to LVR016) C Overall width without lead protrusion (LVR025 to LVR055) C Lead protrusion L

Protrusion of cut-out L 11.0 Maximum Protrusion beyond hold-down tape I Sprocket hole pitch P

Device pitch (LVR005N to LVR040) — 12.7 ± 0.3 Device pitch (LVR055) — 25.4 ± 0.6 Pitch tolerance — 20 consecutive ± 1 Tape thickness t 0.9 Maximum Overall tape and lead thickness (LVR005N to LVR040) t Overall tape and lead thickness (LVR055) t

Splice sprocket hole alignment —0± 0.3 Body lateral deviation ⌬h0± 1.0 Body tape plane deviation ⌬p0± 1.3 Ordinate to adjacent component lead P

Lead spacing* F 5.08 +0.75/-0.5 Reel width (LVR005N to LVR040) w Reel width* (LVR055) w

Reel diameter a 370.0 Maximum Space between flanges* (LVR005N to LVR040) w Space between flanges* (LVR055) w

Arbor hold diameter c 26.0 ± 12.0 Core diameter* n 91.0 Maximum Box — 64/372/362 Maximum Consecutive missing places — None — Empty places per reel — 0.1% Maximum

*Differs from EIA specification.

11 Minimum

3 Maximum 9 -0.5/+0.75 4 ± 0.2

16.0 ± 0.5

32.2 Maximum

45.0 Maximum

43.2 Maximum

56.0 Maximum

42.5 Maximum

56.0 Maximum

1.0 Maximum

Not specified —

12.7 ± 0.3

1.5 Maximum

2.3 Maximum

3.81 ± 0.7

56.0 Maximum

63.5 Maximum

48.0 Maximum

55.0 Maximum

170

RoHS Compliant, ELV Compliant

A B

Reference plane

Direction of unreeling

Cross section A-B

Dp Dp

Cross section

Direction of

unreeling

Reel

Type

Upper side

Lower side

Optional shape: Circular or polygonal

LV R 075 S 2

Packaging

Blank = Packaged in bags

-1 = 25.4mm (1.0 inch) minimum lead length

-2 = Tape and reel

-X.X = Special lead cut length (inch)

Modifier

K = Standard kinked lead S = Straight lead

Hold Current Indicator

Product Series

LV R = 240V rated LVRL = 120V rated

Figure L7 EIA Referenced Taped Component Dimensions for LVR Devices

Figure L8 EIA Referenced Reel Dimensions for LVR Devices

PolySwitch Resettable Devices – Line-Voltage-Rated Devices

Part Numbering System for LVR Devices

RoHS Compliant, ELV Compliant

171

172

LITTELFUSE LVR012S Datasheet

Specifications and Main Features

Frequently Asked Questions

User Manual