1812L075/33DR Littelfuse Inc, 1812L075/33DR Datasheet - Page 2

• Manufacturer Part Number: 1812L075/33DR
• Description: PTC RESETTABLE 33V 750MA 1812L
• Manufacturer: Littelfuse Inc
• Series: POLYFUSE® 1812Lr

Specifications of 1812L075/33DR

• Package / Case: 1812 (4532 Metric)
• R Min/max: 0.110 ~ 0.400 Ohm
• Voltage - Max: 33V
• Time To Trip: 0.2s
• Current - Hold (ih) (max): 750mA
• Current - Trip (it): 1.5A
• Current - Max: 20A
• Hold Current: 0.75 Amp
• Trip Current: 1.5 Amps
• Current Rating (max): 20 Amps
• Resistance: 0.4 Ohms
• Maximum Voltage: 33 VoltsDC
• Termination Style: SMD/SMT
• Mounting Style: SMD/SMT
• Current Rating: 20 Amps
• Dimensions: 4.37 mm L x 3.07 mm W
• Operating Temperature Range: - 40 C to + 85 C
• Holding Current: 750mA
• Tripping Current: 1.5A
• Initial Resistance Max: 0.4ohm
• Operating Voltage: 33VDC
• Ptc Fuse Case: 1812
• External Depth: 1.55mm
• Initial Resistance Min: 0.11ohm
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 1812L075/33DR; F3355TR

1812L Series
Temperature Rerating Curve
Temperature Rerating
Part Number
1812L035/30
1812L050/30
1812L075/24
1812L075/33
1812L125/16
1812L150/12
1812L150/24
1812L160/12
1812L200TH
1812L260TH
1812L260/12
1812L110/16
1812L110/24
1812L110/33
170%
150%
130%
110%
1812L125/6
90%
70%
50%
30%
10%
1812L020
1812L050
1812L075
1812L300
1812L010
1812L014
1812L110
1812L125
1812L150
1812L160
-40 -30 -20
-10
0
-40°C
0.16
0.23
0.29
0.50
0.77
0.77
2.00
2.00
2.00
2.06
2.04
2.05
2.20
2.20
2.60
3.40
3.40
4.13
1.15
1.06
1.10
1.59
1.58
1.55
1.55
10
Temperature (°C)
20
30
POLYFUSE
-20°C
0.14
0.19
0.26
0.45
0.68
0.68
0.95
2.06
2.06
2.44
3.16
3.16
3.75
1.01
1.00
1.43
1.43
1.40
1.40
1.75
1.75
1.75
1.93
1.88
1.87
40
50
60
Surface Mount > 1812L Series
0.12
0.17
0.23
0.40
0.59
0.59
0.88
0.84
0.88
2.22
3.00
3.00
3.30
1.26
1.27
1.25
1.25
1.52
1.52
1.52
1.79
1.68
1.67
1.91
1.91
0°C
70
80 85
®
Revised: July 12, 2010
Resettable PTCs
Ambient Operation Temperature
23°C
0.14
0.20
0.35
0.50
0.50
0.75
0.75
0.75
2.00
2.60
2.60
3.00
0.10
1.10
1.10
1.10
1.10
1.25
1.25
1.25
1.50
1.50
1.50
1.60
1.60
40
Operating/Storage
Temperature
Max. Device Surface Temp.
in Tripped State
Passive Aging
Humidity Aging
Thermal Shock
Solvent Resistance
Vibration
Moisture Level Sesitivity
Hold Current (A)
Physical Specifications
Environmental Specifications
Terminal Material
Lead Solderability
40°C
0.08
0.30
0.44
0.44
0.65
0.60
0.66
0.95
0.95
0.93
0.93
1,78
2.30
2.30
2.61
0.12
0.17
1.00
1.00
1.00
1.28
1.25
1.25
1.36
1.36
Please refer to www.littelfuse.com/series/1812L.html for current information.
50°C
0.07
0.26
0.40
0.40
0.60
0.55
0.60
0.87
0.85
0.83
0.83
0.95
0.95
0.95
2.43
0.10
0.15
1.08
1.67
2.15
2.15
1.10
1.10
1.17
1.17
Solder-Plated Copper (Solder Material:
Matte Tin (Sn))
Meets EIA Specification RS186-9E, ANSI/
J-STD-002 Category 3.
-40°C to +85°C
125°C
+85°C, 1000 hours
-/+5% typical resistance change
+85°C, 85% R.H.,1000 hours
-/+5% typical resistance change
MIL–STD–202, Method 107G
+85°C/-40°C 20 times
-30% typical resistance change
MIL–STD–202, Method 215,
No change
MIL–STD–883C, Method 2007 .1,
Condition A, No change
Level 1, J–STD–020C
Specifications are subject to change without notice.
60°C
0.06
0.09
0.24
0.37
0.37
0.55
0.50
0.56
0.80
0.77
0.73
0.73
0.90
0.90
0.90
0.95
2.00
2.00
2.25
0.14
1.02
1.00
1.09
1.09
1.50
70°C
2.00
0.05
0.08
0.12
0.20
0.33
0.33
0.49
0.45
0.47
0.71
0.71
0.63
0.63
0.75
0.75
0.75
0.80
0.80
0.77
0.85
0.85
1.45
1.85
1.85
© 2010 Littelfuse, Inc.
85°C
0.03
0.06
0.10
0.16
0.29
0.29
0.43
0.37
0.36
0.60
0.58
0.50
0.50
0.53
0.53
0.53
0.68
0.60
0.60
0.72
0.72
1.29
1.63
1.63
1.78