Surface Mounted PTC Resettable Fuse 4532 Metric Concave
  • Air ProSurface Mounted PTC Resettable Fuse 4532 Metric Concave
  • Air ProSurface Mounted PTC Resettable Fuse 4532 Metric Concave
  • Air ProSurface Mounted PTC Resettable Fuse 4532 Metric Concave
  • Air ProSurface Mounted PTC Resettable Fuse 4532 Metric Concave
  • Air ProSurface Mounted PTC Resettable Fuse 4532 Metric Concave
  • Air ProSurface Mounted PTC Resettable Fuse 4532 Metric Concave

Surface Mounted PTC Resettable Fuse 4532 Metric Concave

1812 PTC resettable fuse are 1812 size polymeric positive temperature coefficient resettable overcurrent protection devices. These SMT resettable devices with low resistance and fast time-to-trip include current ratings from 0.1A to 4.0A and 6 to 60 volts DC. This is a RoHS compliant, halogen free, lead free device.The following is about Surface Mounted PTC Resettable Fuse 4532 Metric Concave related, I hope to help you better understand Surface Mounted PTC Resettable Fuse 4532 Metric Concave.

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Product Description

Surface Mounted PTC Resettable Fuse 4532 Metric Concave

1812 SMD Surface Mount PTC Resettable Fuse 4532 Metric Concave SMT Fuse 30V 300mA


1812 PTC resettable fuse are 1812 size polymeric positive temperature coefficient resettable overcurrent protection devices. These SMT resettable devices with low resistance and fast time-to-trip include current ratings from 0.1A to 4.0A and 6 to 60 volts DC. This is a RoHS compliant, halogen free, lead free device.

Description of Surface Mounted PTC Resettable Fuse 4532 Metric Concave

Positive Temperature Coefficient (PTC) resettable devices offer overcurrent protection in a wide variety of applications.  They feature a polymer based construction that provides exponentially increasing resistance during fault conditions to form a tripped state which helps protect downstream circuit components from damaging overcurrents.  Upon removal of the fault, the PTC resettable device will return to a low resistance state and allow for continued operation.  

Surface Mounted PTC Resettable Fuse 4532 Metric Concave factorySurface Mounted PTC Resettable Fuse 4532 Metric Concave factorySurface Mounted PTC Resettable Fuse 4532 Metric Concave factory

Feature of Surface Mounted PTC Resettable Fuse 4532 Metric Concave

Fast time-to-trip
Low resistance

Low profile

Compact design

Compatible with high temperature solders
Positive temperature coefficient (PTC)
SMT resettable device
Current range from 0.1 A to 4.0 A
1812 (4532 metric) compact footprint


Applications of Surface Mounted PTC Resettable Fuse 4532 Metric Concave

USB peripherals

PCI cards

Game console port protection

Plug and play protection for motherboards and peripherals
Power tools
Battery and port protection for mobile/smart phones
Game console port protection
Set-top-boxes
Tablets, notebooks, netbooks, laptops and desktops
Rechargeable battery packs
Digital cameras
Appliances and white goods
Consumer electronics

Ordering Info of Surface Mounted PTC Resettable Fuse 4532 Metric Concave


Model






Maximum

Resistance

Vmax

Imax

Ihold

Itrip

Pd

Time To Trip



@25°C

@25°C

Typ.

Current

Time

R imin

R1max

(V dc)

(A)

(A)

(A)

(W)

(A)

(Sec)

()

()

SMD1812R010SF33V

33.0

30

0.10

0.30

0.8

0.5

1.50

0.750

15.000

SMD1812R010SF

30.0

30

0.10

0.30

0.8

0.5

1.50

0.750

15.000

SMD1812R010SF60V

60.0

30

0.10

0.30

0.8

0.5

1.50

0.750

15.000

SMD1812R014SF33V

33.0

30

0.14

0.34

0.8

1.5

0.15

0.650

6.000

SMD1812R014SF

60.0

30

0.14

0.34

0.8

1.5

0.15

0.650

6.000

SMD1812R020SF

30.0

30

0.20

0.40

0.8

8.0

0.02

0.350

5.000

SMD1812R020SF33V

33.0

30

0.20

0.40

0.8

8.0

0.02

0.350

5.000

SMD1812R020SF60V

60.0

30

0.20

0.40

0.8

8.0

0.02

0.350

5.000

SMD1812R030SF

30.0

30

0.30

0.60

0.8

8.0

0.10

0.250

3.000

SMD1812R030SF33V

33.0

30

0.30

0.60

0.8

8.0

0.10

0.250

3.000

SMD1812R030SF60V

60.0

30

0.30

0.60

0.8

8.0

0.10

0.250

3.000

SMD1812R050SF

15.0

30

0.50

1.00

0.8

8.0

0.15

0.150

1.000

SMD1812R050SF33V

33.0

30

0.50

1.00

0.8

8.0

0.15

0.150

1.000

SMD1812R050SF60V

60.0

30

0.50

1.00

0.8

8.0

0.15

0.150

1.400

SMD1812R075SF

13.2

30

0.75

1.50

0.8

8.0

0.20

0.090

0.450

SMD1812R075SF24V

24.0

30

0.75

1.50

0.8

8.0

0.20

0.090

0.450

SMD1812R075SF33V

33.0

30

0.75

1.50

0.8

8.0

0.20

0.090

0.450

SMD1812R110SF

8.0

35

1.10

2.20

0.8

8.0

0.30

0.045

0.250

SMD1812R110SF16V

16.0

35

1.10

2.20

0.8

8.0

0.30

0.050

0.250

SMD1812R110SF24V

24.0

35

1.10

2.20

0.8

8.0

0.30

0.050

0.250

SMD1812R110SF33V

33.0

35

1.10

2.20

0.8

8.0

0.30

0.050

0.250

SMD1812R125SF8V

8.0

35

1.25

2.50

0.8

8.0

0.40

0.050

0.140

SMD1812R125SF

16.0

35

1.25

2.50

0.8

8.0

0.40

0.050

0.140

SMD1812R150SF

8.0

35

1.50

3.00

0.8

8.0

0.50

0.040

0.160

SMD1812R150SF16V

16.0

35

1.50

3.00

0.8

8.0

0.50

0.040

0.160

SMD1812R150SF24V

24.0

35

1.50

3.00

0.8

8.0

0.50

0.040

0.160

SMD1812R150SF33V

33.0

35

1.50

3.00

0.8

8.0

0.50

0.040

0.160

SMD1812R160SF

8.0

35

1.60

2.80

0.8

8.0

1.00

0.030

0.130

SMD1812R200SF

8.0

35

2.00

4.00

0.8

8.0

2.00

0.020

0.100

SMD1812R200SF16V

16.0

35

2.00

4.00

0.8

8.0

2.00

0.020

0.100

SMD1812R200SF24V

24.0

35

2.00

4.00

0.8

8.0

2.00

0.020

0.100

SMD1812R260SF

8.0

35

2.60

5.00

0.8

8.0

2.50

0.010

0.050

SMD1812R260SF16V

16.0

35

2.60

5.00

0.8

8.0

2.50

0.010

0.050

SMD1812R300SF

8.0

35

3.00

5.00

0.8

8.0

4.00

0.010

0.040

SMD1812R300SF16V

16.0

35

3.00

5.00

0.8

8.0

4.00

0.010

0.040

SMD1812R350SF

6.0

35

3.50

6.00

2.0

10.0

4.00

0.008

0.030

SMD1812R350SF16V

16.0

35

3.50

6.00

2.0

10.0

4.00

0.008

0.030

SMD1812R400SF

6.0

35

4.00

7.00

2.0

10.0

4.00

0.005

0.025

SMD1812R400SF12V

12.0

35

4.00

7.00

2.0

10.0

4.00

0.005

0.025

SMD1812R400SF16V

16.0

35

4.00

7.00

2.0

10.0

4.00

0.005

0.025


V max = Maximum operating voltage device can withstand without damage at rated current (Imax).

I max  = Maximum fault current device can withstand without damage at rated voltage (V max).

I hold  = Hold Current. Maximum current device will not trip in 25°C still air.

I trip   = Trip Current. Minimum current at which the device will always trip in 25°C still air.

Pd    = Power dissipation when device is in the tripped state in 25°C still air environment at rated voltage.

Ri min/max = Minimum/Maximum device resistance prior to tripping at 25°C.

R1max = Maximum device resistance is measured one hour post reflow.

CAUTION : Operation beyond the specified ratings may result in damage and possible arcing and flame.


Model

Ambient Operation Temperature

-40°C

-20°C

0°C

25°C

40°C

50°C

60°C

70°C

85°C

SMD1812R010SF

0.16

0.14

0.12

0.10

0.08

0.07

0.06

0.05

0.03

SMD1812R014SF

0.23

0.19

0.17

0.14

0.12

0.10

0.09

0.08

0.06

SMD1812R020SF

0.29

0.26

0.23

0.20

0.17

0.15

0.14

0.12

0.10

SMD1812R030SF

0.44

0.39

0.35

0.30

0.26

0.23

0.21

0.18

0.15

SMD1812R050SF

0.59

0.57

0.55

0.50

0.45

0.43

0.35

0.30

0.23

SMD182R075SF

1.10

0.99

0.87

0.75

0.63

0.57

0.49

0.45

0.35

SMD1812R110SF

1.60

1.45

1.28

1.10

0.92

0.83

0.71

0.66

0.52

SMD1812R125SF

2.00

1.75

1.52

1.25

1.00

0.95

0.90

0.75

0.53

SMD1812R150SF

2.10

1.96

1.77

1.50

1.23

1.09

0.95

0.82

0.61

SMD1812R160SF

2.30

2.05

1.88

1.60

1.26

1.12

0.98

0.84

0.63

SMD1812R200SF

2.88

2.61

2.25

2.00

1.80

1.66

1.45

1.09

0.80

SMD1812R260SF

3.90

3.42

2.96

2.60

2.33

2.07

1.94

1.35

1.00

SMD1812R300SF

4.15

3.76

3.46

3.00

2.55

2.28

2.01

1.61

1.33

SMD1812R350SF

4.84

4.39

4.04

3.50

2.98

2.66

2.35

1.88

1.55

SMD1812R400SF

5.80

5.20

4.60

4.00

3.35

3.12

2.75

2.45

2.10




Thermal Derating Chart

Recommended Hold Current(A) at Ambient Temperature(°C)
Surface Mounted PTC Resettable Fuse 4532 Metric Concave factory

Physical Dimensions(mm.)


Model

A

B

C

D

E

Min.

Max.

Min.

Max.

Min.

Max.

Min.

Min.

SMD1812R010SF

4.37

4.73

3.07

3.41

0.50

1.10

0.30

0.25

SMD1812R010SF33V

4.37

4.73

3.07

3.41

0.50

1.10

0.30

0.25

SMD1812R010SF60V

4.37

4.73

3.07

3.41

0.50

1.10

0.30

0.25

SMD1812R014SF33V

4.37

4.73

3.07

3.41

0.50

1.10

0.30

0.25

SMD1812R014SF

4.37

4.73

3.07

3.41

0.50

1.10

0.30

0.25

SMD1812R020SF

4.37

4.73

3.07

3.41

0.50

1.10

0.30

0.25

SMD1812R020SF33V

4.37

4.73

3.07

3.41

0.50

1.10

0.30

0.25

SMD1812R020SF60V

4.37

4.73

3.07

3.41

0.50

1.10

0.30

0.25

SMD1812R030SF

4.37

4.73

3.07

3.41

0.50

1.10

0.30

0.25

SMD1812R030SF33V

4.37

4.73

3.07

3.41

0.50

1.10

0.30

0.25

SMD1812R030SF60V

4.37

4.73

3.07

3.41

0.50

1.10

0.30

0.25

SMD1812R050SF

4.37

4.73

3.07

3.41

0.40

1.00

0.30

0.25

SMD1812R050SF33V

4.37

4.73

3.07

3.41

0.40

1.00

0.30

0.25

SMD1812R050SF60V

4.37

4.73

3.07

3.41

0.50

1.10

0.30

0.25

SMD1812R075SF

4.37

4.73

3.07

3.41

0.50

1.10

0.30

0.25

SMD1812R075SF24V

4.37

4.73

3.07

3.41

0.60

1.30

0.30

0.25

SMD1812R075SF33V

4.37

4.73

3.07

3.41

0.60

1.30

0.30

0.25

SMD1812R110SF

4.37

4.73

3.07

3.41

0.40

1.00

0.30

0.25

SMD1812R110SF16V

4.37

4.73

3.07

3.41

0.40

1.00

0.30

0.25

SMD1812R110SF24V

4.37

4.73

3.07

3.41

0.60

1.30

0.30

0.25

SMD1812R110SF33V

4.37

4.73

3.07

3.41

0.60

1.30

0.30

0.25

SMD1812R125SF

4.37

4.73

3.07

3.41

0.40

1.00

0.30

0.25

SMD1812R125SF8V

4.37

4.73

3.07

3.41

0.40

1.00

0.30

0.25

SMD1812R150SF

4.37

4.73

3.07

3.41

0.50

1.10

0.30

0.25

SMD1812R150SF16V

4.37

4.73

3.07

3.41

0.50

1.10

0.30

0.25

SMD1812R150SF24V

4.37

4.73

3.07

3.41

0.50

1.10

0.30

0.25

SMD1812R150SF33V

4.37

4.73

3.07

3.41

0.80

1.50

0.30

0.25

SMD1812R160SF

4.37

4.73

3.07

3.41

0.50

1.10

0.30

0.25

SMD1812R200SF

4.37

4.73

3.07

3.41

0.50

1.10

0.30

0.25

SMD1812R200SF16V

4.37

4.73

3.07

3.41

0.50

1.10

0.30

0.25

SMD1812R200SF24V

4.37

4.73

3.07

3.41

0.80

1.50

0.30

0.25

SMD1812R260SF

4.37

4.73

3.07

3.41

0.80

1.50

0.30

0.25

SMD1812R260SF16V

4.37

4.73

3.07

3.41

0.80

1.50

0.30

0.25

SMD1812R300SF

4.37

4.73

3.07

3.41

0.80

1.50

0.30

0.25

SMD1812R300SF16V

4.37

4.73

3.07

3.41

0.80

1.50

0.30

0.25

SMD1812R350SF

4.37

4.73

3.07

3.41

0.80

1.50

0.30

0.25

SMD1812R350SF16V

4.37

4.73

3.07

3.41

0.80

1.50

0.30

0.25

SMD1812R400SF

4.37

4.73

3.07

3.41

0.80

1.50

0.30

0.25

SMD1812R400SF12V

4.37

4.73

3.07

3.41

1.00

1.80

0.30

0.25

SMD1812R400SF16V

4.37

4.73

3.07

3.41

1.00

1.80

0.30

0.25



Termination Pad Characteristics

Terminal pad materials:Tin-plated Nickel-Copper

Terminal pad solder ability:Meets EIA specification RS186-9E and ANSI/J-STD-002 Category 3.


Recommended Pad Layout (mm.)*

Surface Mounted PTC Resettable Fuse 4532 Metric Concave factory
Package of Surface Mounted PTC Resettable Fuse 4532 Metric Concave

Part Number

Quantity

SMD1812 Series

1,500 pcs/reel

     Tape & reel packaging per EIA481-1


Environmental data of Surface Mounted PTC Resettable Fuse 4532 Metric Concave

Operating temperature: -40 °C to + 85 °C (with derating)
Storage temperature: -10 °C to + 40 °C
Storage relative humidity: ≤75%
Storage condition: Keep away from corrosive atmosphere and sunlight
Storage duration: 1 year
Thermal shock: (20 cycles - 40 °C to + 85 °C) -33% typical resistance change
Humidity: +85 °C, 85% relative humidity, 1000 hours ±5% typical resistance change
Resistance to solvents: MIL-STD- 202 Method 215


PTC resettable fuse selection process

To select or specify the most suitable PTC resettable fuse for your application, Eaton recommends a 6-step process:

1. Determine your circuit’s parameters- note your normal operating current, max operating voltage, max interrupt current, maximum ambient temperature.
2. Select a PTC resettable fuse- based on the maximum ambient temperature and steady-state current. Use thermal derating graphs/ charts.
3. Compare ratings- use an electrical characteristics table, compare the selected device’s maximum ratings with your circuit’s maximum ratings.
4. Determine time-to-trip- use defined maximum time-to-trip and/or available time-to-trip curves if available.
5. Verify your operating temperature range- confirm desired performance in application operating temperatures.
6. Verify fuse dimensions and mounting style- for pad layout dimensions or lead dimensions and suitability in end product design.

Final notes

A PTC resettable fuse is a protection device only intended to operate during overcurrent and/or overtemperature events that are not normal operation and are generally undesired conditions. They are not intended to be a switch that operates numerous times in normal operation. Treating PTC fuses as switches can cause them to fatigue if cycled too many times or held in a tripped position for extended periods of time. Also, a resettable PTC fuse is not a one-time fuse (or positive one-time disconnect). There still is a small amount of residual current that flows through the PTC when in a tripped position where a one-time fuse is a one-time disconnect that is designed to permanently open during an overcurrent event.

For more information about Surface Mounted PTC Resettable Fuse 4532 Metric Concave, please contact Aolittel Electronics or your local Aolittel sales representative.


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