2920L250DR Littelfuse Inc, 2920L250DR Datasheet - Page 2

• Manufacturer Part Number: 2920L250DR
• Description: PTC RESETTABLE 15V 2.5A SMD 2920
• Manufacturer: Littelfuse Inc
• Series: POLYFUSE® 2920Lr

Specifications of 2920L250DR

• Package / Case: 2920
• R Min/max: 0.035 ~ 0.085 Ohm
• Voltage - Max: 15V
• Time To Trip: 10s
• Current - Hold (ih) (max): 2.5A
• Current - Trip (it): 5A
• Current - Max: 40A
• Hold Current: 2.5 Amps
• Trip Current: 5 Amps
• Current Rating (max): 40 Amps
• Resistance: 0.085 Ohms
• Maximum Voltage: 15 VoltsDC
• Termination Style: SMD/SMT
• Mounting Style: SMD/SMT
• Current Rating: 40 Amps
• Dimensions: 6.73 mm L x 4.8 mm W
• Operating Temperature Range: - 40 C to + 85 C
• Holding Current: 2.5A
• Tripping Current: 5A
• Initial Resistance Max: 0.085ohm
• Operating Voltage: 15VDC
• Ptc Fuse Case: 2920
• Initial Resistance Min: 0.035ohm
• Resistance R1: 0.085ohm
• Length: 7.36mm
• Rohs Compliant: Yes
• External Depth: 1mm
• Fuse Terminals: SMD Caps
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 2920L250DR; F2873TR

The average time current curves and Temperature Rerating curve performance is affected
by a number or variables, and these curves provided as guidance only. Customer must
verify the performance in their application.
2920L Series
Temperature Rerating
Average Time Current Curves
Part Number
2920L075/60
2920L200/24
2920L300/15
1000
2920L030
2920L050
2920L075
2920L100
2920L125
2920L150
2920L185
2920L200
2920L250
2920L260
2920L300
0.10
100
10
1
0.1
Current in Amperes
1
-40°C
0.45
0.76
2.27
2.80
3.02
3.14
3.78
3.64
4.53
4.20
1.13
1.13
1.66
1.89
POLY-FUSE
-20°C
0.40
0.67
2.01
2.47
2.68
2.77
3.35
3.25
4.02
3.85
1.01
1.01
1.47
1.68
10
Surface Mount > 2920L Series
2920L
0.35
0.59
0.88
0.88
2.17
2.34
2.42
2.93
2.91
3.51
3.44
1.29
1.46
1.76
0°C
100
®
Revised: February 13, 2011
Resettable PTCs
Ambient Operation Temperature
23°C
0.30
0.50
0.75
0.75
2.00
2.00
2.50
2.60
3.00
3.00
1.10
1.25
1.50
1.85
52
Hold Current (A)
Temperature Rerating Curve
170%
150%
130%
110%
40°C
90%
70%
50%
30%
10%
0.25
0.42
0.62
0.62
0.91
2.08
2.26
2.52
2.69
1.04
1.25
1.54
1.66
1.73
-40 -30 -20
Please refer to www.littelfuse.com/series/2920L.html for current information.
50°C
0.23
0.38
0.56
0.56
0.83
0.94
2.08
2.26
2.50
1.13
1.39
1.50
1.56
1.88
-10
0
10
Specifications are subject to change without notice.
60°C
0.20
0.33
0.50
0.50
0.73
0.83
2.31
1.00
1.22
1.32
1.38
1.65
1.95
1.99
Temperature (°C)
20
30
40
70°C
0.29
0.44
0.44
0.64
0.73
0.87
2.12
0.17
1.07
1.16
1.20
1.45
1.75
1.74
50
60
© 2010 Littelfuse, Inc.
70
85°C
0.14
0.23
0.34
0.34
0.50
0.56
0.74
0.85
0.90
0.98
1.48
1.34
1.83
1.13
80 85