30R250 Littelfuse Inc, 30R250 Datasheet - Page 4

• Manufacturer Part Number: 30R250
• Description: PTC Resettable Fuses 30V 2.5A-HD 40A MAX
• Manufacturer: Littelfuse Inc
• Type: Polyfuse Resettable PTCr
• Series: 30Rr

Specifications of 30R250

• Hold Current: 2.5 Amps
• Trip Current: 5 Amps
• Current Rating (max): 40 Amps
• Resistance: 0.07 Ohms
• Maximum Voltage: 30 VoltsDC
• Termination Style: Radial
• Mounting Style: Through Hole
• Current Rating: 40 Amps
• Dimensions: 18.3 mm L x 11.4 mm W x 3 mm H
• Lead Spacing: 5.1 mm
• Operating Temperature Range: - 40 C to + 85 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

30R Series
Dimensions
Part Number
30R090
30R135
30R160
30R185
30R250
30R300
30R400
30R500
30R600
30R700
30R800
30R900
30R110
Inches
Max.
0.29
0.29
0.35
0.35
0.40
0.45
0.45
0.55
0.55
0.65
0.75
0.85
0.95
A
C
A
14.00
14.00
Max.
10.20
16.50
19.10
21.60
24.10
11.40
11.40
mm
8.90
8.90
7 .40
7 .40
B
D
Inches
Max.
0.48
0.56
0.53
0.60
0.62
0.72
0.87
0.76
1.01
1.06
1.13
1.22
1.24
POLYFUSE
E
B
12.20
14.20
13.50
15.20
15.70
18.30
19.20
22.00
25.60
26.80
28.60
Max.
31.10
31.60
mm
Inches
Typ.
0.20
0.20
0.20
0.20
0.20
0.20
0.20
0.20
0.40
0.40
0.40
0.40
0.40
Radial Leaded > 30R Series
C
®
Revised: October 24, 2008
10.20
10.20
10.20
10.20
10.20
Resettable PTCs
mm
Typ.
5.10
5.10
5.10
5.10
5.10
5.10
5.10
5.10
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
Part Marking System
D
Min.
mm
7 .60
7 .60
7 .60
7 .60
7 .60
7 .60
7 .60
7 .60
7 .60
7 .60
7 .60
7 .60
7 .60
Littelfuse
Trademark
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
Please refer to www.littelfuse.com/series/30R.html for current information.
Single Sided Marking
E
Max.
3.00
3.00
3.00
3.00
3.00
3.00
3.00
3.00
3.00
3.00
3.00
3.00
3.00
mm
XXXX
110U
30
Specifications are subject to change without notice.
Inches
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)
Voltage Rating
Current Rating
Date Code
(Contact Littelfuse
for additional
information)
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
mm
Material
Sn/CuFe
Sn/CuFe
Sn/CuFe
Sn/CuFe
Sn/CuFe
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
©2008 Littelfuse, Inc.