72R250XF Littelfuse Inc, 72R250XF Datasheet - Page 4

• Manufacturer Part Number: 72R250XF
• Description: PTC RESETTABLE 72V 2.50A RADIAL
• Manufacturer: Littelfuse Inc
• Series: POLYFUSE® 72Rr

Specifications of 72R250XF

• R Min/max: 0.050 ~ 0.130 Ohm
• Voltage - Max: 72V
• Time To Trip: 15.6s
• Current - Hold (ih) (max): 2.5A
• Current - Trip (it): 5A
• Current - Max: 40A
• Package / Case: Radial
• Holding Current: 2.5A
• Tripping Current: 5A
• Initial Resistance Max: 0.13ohm
• Operating Voltage: 72VDC
• Ptc Fuse Case: Radial Lead
• Initial Resistance Min: 0.05ohm
• Lead Spacing: 10.2mm
• External Depth: 3.1mm
• Fuse Terminals: Radial Leaded
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 72R250X; F3204

72R Series
Dimensions
Part Number
72R020X
72R025X
72R030X
72R040X
72R050X
72R065X
72R075X
72R090X
72R135X
72R160X
72R185X
72R250X
72R300X
72R375X
72R110X
Inches
Max.
0.29
0.29
0.29
0.30
0.31
0.37
0.40
0.44
0.51
0.53
0.60
0.66
0.78
0.91
1.04
A
C
A
13.58
15.36
19.93
Max.
16.76
23.11
26.3
mm
10.2
13.0
11.2
9.4
7 .4
7 .4
7 .4
7 .6
7 .9
D
B
Inches
Max.
0.46
0.50
0.50
0.53
0.54
0.57
0.60
0.62
0.72
0.78
0.85
0.91
1.03
1.15
1.22
POLYFUSE
E
B
Max.
mm
12.7
12.7
13.5
13.7
14.5
15.2
15.8
18.2
19.8
23.0
26.2
29.3
21.6
31.1
11.7
Radial Leaded > 72R Series
Inches
Typ.
0.20
0.20
0.20
0.20
0.20
0.20
0.20
0.20
0.20
0.20
0.20
0.20
0.40
0.40
0.40
®
Revised: July 12, 2010
Resettable PTCs
C
mm
Typ.
10.2
10.2
10.2
5.1
5.1
5.1
5.1
5.1
5.1
5.1
5.1
5.1
5.1
5.1
5.1
94
Part Marking System
Inches
Min.
0.30
0.30
0.30
0.30
0.30
0.30
0.30
0.30
0.30
0.30
0.30
0.30
0.30
0.30
0.30
D
Littelfuse
Trademark
Min.
mm
7 .6
7 .6
7 .6
7 .6
7 .6
7 .6
7 .6
7 .6
7 .6
7 .6
7 .6
7 .6
7 .6
7 .6
7 .6
Please refer to www.littelfuse.com/series/72R.html for current information.
Inches
Max.
0.12
0.12
0.12
0.12
0.12
0.12
0.12
0.12
0.12
0.12
0.12
0.12
0.12
0.12
0.12
Single Sided Marking
E
Max.
mm
3.1
3.1
3.1
3.1
3.1
3.1
3.1
3.1
3.1
3.1
3.1
3.1
3.1
3.1
3.1
XXXX
020X
72
Specifications are subject to change without notice.
Inches
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.03
0.03
0.03
0.03
0.03
0.03
0.03
Physical Characteristics
Lead (dia)
Current Rating
Date Code
(Contact Littelfuse
for additional
information)
Voltage Rating
mm
0.51
0.51
0.51
0.51
0.51
0.51
0.51
0.51
0.81
0.81
0.81
0.81
0.81
0.81
0.81
© 2010 Littelfuse, Inc.
Material
Sn/CuFe
Sn/CuFe
Sn/CuFe
Sn/CuFe
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu