1812L050
器件资料摘要：
Resettable PTCs
248
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Surface Mount PTC
1812L Series
-40°C -20°C0°C20°C 40°C50°C60°C 70°C 80°C85°C
Part Number
1812L050 0.75 0.67 0.58 0.50 0.41 0.37 0.33 0.29 0.25 0.23
1812L075 1.13 1.00 0.87 0.75 0.62 0.56 0.50 0.43 0.37 0.34
1812L110 1.65 1.47 1.28 1.10 0.91 0.82 0.73 0.64 0.54 0.50
1812L125 1.88 1.67 1.46 1.25 1.04 0.93 0.83 0.72 0.62 0.56
1812L150 2.25 2.00 1.75 1.50 1.24 1.12 0.99 0.87 0.74 0.68
1812L160 2.40 2.13 1.86 1.60 1.33 1.19 1.06 0.92 0.79 0.72
1812L200 3.00 2.67 2.33 2.00 1.66 1.49 1.32 1.15 0.99 0.90
1812L260 3.90 3.47 3.03 2.60 2.16 1.94 1.72 1.50 1.28 1.17
Temperature Rerating:
• Complies with electronic industry environmental standards for
lead reduction.
PHYSICAL SPECIFICATIONS:
Terminal Material: Tin Plated Copper
Device Labeling: Device is marked with LF and amperage rating.
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:
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.
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
Device should remain in sealed bags prior to use.
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).
Optional reel quantity: 0.50-1.60A: 8,000 devices on 13" reel (ZRT Suffix).
Hold Current (A)
Ambient Temperature
®
®
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 85
10%
30%
50%
70%
90%
110%
130%
150%
170%
Temperature (°C)
Percentage of Rated Current
Temperature Rerating Curve:
248
www.littelfuse.com
Surface Mount PTC
1812L Series
-40°C -20°C0°C20°C 40°C50°C60°C 70°C 80°C85°C
Part Number
1812L050 0.75 0.67 0.58 0.50 0.41 0.37 0.33 0.29 0.25 0.23
1812L075 1.13 1.00 0.87 0.75 0.62 0.56 0.50 0.43 0.37 0.34
1812L110 1.65 1.47 1.28 1.10 0.91 0.82 0.73 0.64 0.54 0.50
1812L125 1.88 1.67 1.46 1.25 1.04 0.93 0.83 0.72 0.62 0.56
1812L150 2.25 2.00 1.75 1.50 1.24 1.12 0.99 0.87 0.74 0.68
1812L160 2.40 2.13 1.86 1.60 1.33 1.19 1.06 0.92 0.79 0.72
1812L200 3.00 2.67 2.33 2.00 1.66 1.49 1.32 1.15 0.99 0.90
1812L260 3.90 3.47 3.03 2.60 2.16 1.94 1.72 1.50 1.28 1.17
Temperature Rerating:
• Complies with electronic industry environmental standards for
lead reduction.
PHYSICAL SPECIFICATIONS:
Terminal Material: Tin Plated Copper
Device Labeling: Device is marked with LF and amperage rating.
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:
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.
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
Device should remain in sealed bags prior to use.
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).
Optional reel quantity: 0.50-1.60A: 8,000 devices on 13" reel (ZRT Suffix).
Hold Current (A)
Ambient Temperature
®
®
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 85
10%
30%
50%
70%
90%
110%
130%
150%
170%
Temperature (°C)
Percentage of Rated Current
Temperature Rerating Curve: