1812L125ZRT [LITTELFUSE]

PTC Resettable Fuse, 0.04ohm, Surface Mount;


型号：	1812L125ZRT
厂家：	LITTELFUSE
描述：	PTC Resettable Fuse, 0.04ohm, Surface Mount 温度传感电阻器
文件：	总2页 (文件大小：173K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

Resettable PTCs

Surface Mount PTC

1812L Series

• Complies with electronic industry environmental standards for

lead reduction.

Packaging: 12mm tape and reel carrier per EIA 481 Standard.

Standard reel quantity: 0.50-1.60A: 2,000 devices on 7" reel (PRT Suffix).

2.00-2.60A: 1,000 devices on 7" reel (MR Suffix).

PHYSICAL SPECIFICATIONS:

Terminal Material: Tin Plated Copper

Device Labeling: Device is marked with LF and amperage rating.

Optional reel quantity: 0.50-1.60A: 8,000 devices on 13" reel (ZRT Suffix).

Temperature Rerating Curve:

170%

150%

130%

AGENCY APPROVALS: Recognized under the Components Program of

Underwriters Laboratories and the Acceptance program of CSA. TUV approved.

AGENCY FILE NUMBERS: UL E183209, CSA LR108832.

ENVIRONMENTAL SPECIFICATIONS:

110%

90%

70%

Passive Aging: 85°C, 1000 Hours.

Humidity Aging: 85°C, 85% R.H., 100 hours.

Thermal Shock: 85°C / –40°C, 20 times.

Vibration: MIL-STD 202, Method 201, MIL-STD-883, Method 2007.

50%

30%

10%

Mechanical Shock: MIL-STD-202, Method 213 test condition I

(100 g’s, 6 sec.).

Solvent Resistance: MIL-STD-202, Method 215.

Operating/Storage Temperature: –40°C to 85°C

-40 -30 -20 -10

20 30

40 50 60 70 80 85

Device should remain in sealed bags prior to use.

Temperature (°C)

Temperature Rerating:

Ambient Temperature

-40°C

-20°C

0°C

20°C

40°C

50°C

60°C

70°C

80°C

85°C

Hold Current (A)

Part Number

1812L050

1812L075

1812L110

1812L125

1812L150

1812L160

1812L200

1812L260

0.75

1.13

1.65

1.88

2.25

2.40

3.00

3.90

0.67

1.00

1.47

1.67

2.00

2.13

2.67

3.47

0.58

0.87

1.28

1.46

1.75

1.86

2.33

3.03

0.50

0.75

1.10

1.25

1.50

1.60

2.00

2.60

0.41

0.37

0.56

0.82

0.93

1.12

1.19

1.49

1.94

0.33

0.50

0.73

0.83

0.99

1.06

1.32

1.72

0.29

0.43

0.64

0.72

0.87

0.92

1.15

1.50

0.25

0.37

0.54

0.62

0.74

0.79

0.99

1.28

0.23

0.34

0.50

0.56

0.68

0.72

0.90

1.17

0.62

0.91

1.04

1.24

1.33

1.66

2.16

351

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Resettable PTCs

Surface Mount PTC

1812L Series

Average Time Current Curves

Dimensions (Inches)

1812L050

1812L075

1812L110

1812L125

1812L150

1812L160

100

1812L200

1812L260

4.47 mm (.176)

1.13 mm

(.049)

.61 mm

(.025)

Top

View

3.15 mm

(.124)

Side

View

Side

View

260

Tin Plated Terminals

2.29 mm

(.090)

Bottom

View

Pad

Layout

3.30 mm

(.130)

260

2.03 mm

(.080)

0.50 mm

(.025)

0.1

Recommended Pad Layout (Inches)

All dimensions are nominal.

0.01

Solderability: Meets EIA specification RS186-9E and IPC/EIA

J-STD-002, and IPC/EIA J-STD-001.

Soldering Parameters:

Reflow Solder — 245°C, 20 seconds maximum

Wave Solder — 245°C, 10 seconds maximum

0.001

0.1

100

CURRENT IN AMPERES

Electrical Characteristics:

Maximum Time

To Trip

Resistance

hold

trip

max

Part

Number

P max.

Current

(A)

Time

(Sec)

(A)

(Vdc)

(A)

(W)

(Ω)

1812L050

1812L075

1812L110

1812L125

1812L150

1812L160

1812L200

1812L260

0.50

0.75

1.10

1.25

1.50

1.60

2.00

2.60

1.00

1.50

2.20

2.50

3.00

3.20

4.00

5.20

15.0

13.2

6.0

0.8

8.0

0.15

0.30

2.50

0.100

0.060

0.050

0.040

0.032

0.018

0.010

1.000

0.420

0.226

0.184

0.137

0.099

0.070

0.050

Hold Current: maximum current device will sustain for 4 hours without tripping in 20°C still air.

Trip Current: minimum current at which the device will trip in 20°C still air.

Maximum voltage device can withstand without damage at rated current (Imax)

Maximum fault current device can withstand without damage at rated voltage (Vmax)

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

Minimum resistance of device in initial (un-soldered) state.

hold

trip

max

Maximum measured resistance in the non-tripped state 1 hour after reflow with reflow conditions of 245°C for 20 sec.

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

352

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