Type MRF
Fast Acting Radial Lead Micro Fuse Series
RoHS 6 Compliant
MRF May2012D
Fast Acting Radial Lead Micro Fuse Series
Pb
MRF May2012D
Sub-miniature,fast-acting type, 250V rated fuses
designed, approved and complied with IEC 60127
-
3,
Description
MRF Series
Electrical Characteristics (IEC-127-3 STANDARD SHEET 3) Features
designed, approved and complied with IEC 60127
-
3,
standard sheet 3.
- Fast Acting (250V AC @50A)
- Meet IEC standard 60127-3,Sheet 3
- Wide operating temperature range
- Bulk and Tape & Reel packing available
- RoHS6 compliant
- Halogen Free
- Leadfree
In clause 9.2,the test voltage for MRF ratings from 80mA to
6.3A is 64VDC.
SAFETY
AGENCY
SAFETY AGENCY
CERTIFICATE NUMBER
AMPERE RANGE / VOLT
@ I.R.ABILITY
50mA - 5A / 250V AC @ 35A or
10 In whichever is greater
1026142;1026141;1026139;1111865
Safety Agency Approvals
Applications
Provide individual protection for components or internal
circuits.
- Power Supplies
- Battery chargers
- Consumer Electronics
- Adapter
- Industrial Controllers
LEAD FREE = Pb
HALOGEN FREE = HF
6.3A is 64VDC.
40017420;40028500
1A - 5A / 250V AC @100A
10 In whichever is greater
JET 1037-31007-1001
LR39772
E20624
50mA - 6.3A / 250V AC @ 50A
50mA - 6.3A / 350V AC @100A
50mA - 6.3A / 350V AC @100A
50mA - 6.3A / 350V AC @100A
Specifications Subject to change without notice.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302
‧
Tel: 201-432-0463
‧
Fax: 201-432-9542
‧
E-Mail: belfuse@belf.com
Website: www.belfuse.com
Type MRF
Fast Acting Radial Lead Micro Fuse Series
RoHS 6 Compliant
Electrical Specifications
MRF May2012D
Pb
50mA 11.9 0.73 250 Y Y Y Y Y
63mA 8.5 0.66 250 Y Y Y Y Y
80mA 6.3 0.64 250 Y Y Y Y Y
0.001
0.001
0.002
0.001
0.002 0.11
0.10
0.090.001
MRF 80
Voltage
Rating
(V)
Typical
Cold
Resistance
(ohm)
Ampere
Rating
Catalog
Number
MRF 50
MRF 63
Maximum
Power
Dissipation
(W)
Melting I2T
@ 10 In
(A2 Sec)
Melting I2T
<10 m Sec
(A2 Sec)
Interrupting
Rating
Volt-drop
@100%
In
(Volt)
Max.
Agency Approvals
100mA 4.0 0.49 250 Y Y Y Y Y
125mA 3.1 0.50 250 Y Y Y Y Y
160mA 2.3 0.46 250 Y Y Y Y Y
200mA 1.7 0.41 250 Y Y Y Y Y
250mA 0.42 0.17 250 Y Y Y Y Y
315mA 0.29 0.15 250 Y Y Y Y Y
400mA 0.21 0.14 250 Y Y Y Y Y
0.003 0.003 0.11
MRF 250
0.007 0.007 0.13
0.016
MRF 400
MRF 100
MRF 125
MRF 160
MRF 200
MRF 315
0.016 0.21
0.027 0.027 0.19
0.023 0.023 0.23
0.044 0.044 0.22
0.073 0.072 0.28
(50mA - 6.3A
/ 35A @
250VAC
or 10 In)
500mA 0.17 0.15 250 Y Y Y Y Y
630mA 0.10 0.08 250 Y Y Y Y Y
800mA 0.071 0.08 250 Y Y Y Y Y
1A 0.057 0.08 250 Y Y Y Y Y Y
1.25A 0.047 0.081 250 Y Y Y Y Y Y
1.6A 0.035 0.077 250 Y Y Y Y Y Y
2A
0.028
0.075
250
Y
Y
Y
Y
Y
Y
MRF 500
MRF 630
MRF 800
MRF 1
MRF 1.25
MRF 1.6
MRF 2
0.20 0.18 0.42
0.15 0.14 0.16
0.4 0.4 0.20
0.7 0.6 0.38
1.3 1.2 0.69
1.4 1.3 0.62
2.1
2.0
0.72
or 10 In)
whichever is
greater)
(50mA - 6.3A
/ 350V AC
@100A)
2A
0.028
0.075
250
Y
Y
Y
Y
Y
Y
2.5A 0.022 0.071 250 Y Y Y Y Y Y
3.15A 0.016 0.064 250 Y Y Y Y Y Y
4A 0.011 0.059 250 Y Y Y Y Y Y
5A 0.010 0.056 250 Y Y Y Y Y Y
6.3A 0.008 0.054 250 Y Y Y
MRF 2
2.1
2.0
0.72
4 3 0.92MRF 2.5
MRF 3.15 6 4 0.82
8 6 0.65MRF 4
MRF 5 15 11.8 0.91
25 19.8 1.05MRF 6.3
Consult manufacturer for other ratings
CORPORATE OFFICE FAR EAST OFFICE EUROPE OFFICE EUROPE
Bel Fuse Inc. Bel Fuse Ltd. Bel Fuse Europe Ltd. Bel Stewart GmbH
206 Van Vorst Street 8/F Luk Hop Industrial Building Preston Technology Management Centre Industriestrasse 20
Jersey City, NJ 07302 8 Luk Hop Street Marsh Lane, Suite F15 61381 Friedrichsdorf
Tel 201-432-0463 San Po Kong Preston, Lancashire, PR1 8UQ Germany
Fax 201-432-9542 Kowloon, Hong Kong United Kingdom Tel 49-6172-9552-0
E-Mail: belfuse@belf.com
Tel 852-2328-5515
Tel 44-1772-556601
Fax 49-6172-9552-40
E-Mail: belfuse@belf.com
Tel 852-2328-5515
Tel 44-1772-556601
Fax 49-6172-9552-40
Website: www. belfuse.com Fax 852-2352-3706 Fax 44-1772-561008
Pb
Type MRF
Fast Acting Radial Lead Fuse Series
RoHS 6 Compliant
MRF May2012C
Pb
Temperature Derating Curve Average Time Current Curve
100
110
120
130
140
Percent of Rated Current
50
60
70
80
90
100
-75 -65 -55 -45 -35 -25 -15 -5 5 15 25 35 45 55 65 75 85 95 105 115 125 135 145
Percent of Rated Current
Ambient Temperature [
o
C]
Ambient Temperature [
o
C]
Soldering Parameters
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302
‧
Tel: 201-432-0463
‧
Fax: 201-432-9542
‧
E-Mail: belfuse@belf.com
Website: www.belfuse.com
Type MRF
Fast Acting Radial Lead Micro Fuse Series
RoHS 6 Compliant
Pb MRF May2012D
Physical Specifications
Environmental Specifications
Environmental Specifications
Mechanical Dimensions Ordering Information
Specifications subject to change without notice.
Packaging
CORPORATE OFFICE FAR EAST OFFICE EUROPE OFFICE EUROPE
Bel Fuse Inc. Bel Fuse Ltd. Bel Fuse Europe Ltd. Bel Stewart GmbH
206 Van Vorst Street
8/F Luk Hop Industrial Building Preston Technology Management Centre Industriestrasse 20
Jersey City, NJ 07302 8 Luk Hop Street Marsh Lane, Suite F15
61381 Friedrichsdorf
Tel 201-432-0463
San Po Kong
Preston, Lancashire, PR1 8UQ
Germany
Packaging CodeQuantityPackaging SpecificationPackaging Option
01
02
100
1000
N/A
EIA-468-C
Bulk / bag, 1K / box
12.7 mm pitch, On Tape / box
Tel 201-432-0463
San Po Kong
Preston, Lancashire, PR1 8UQ
Germany
Fax 201-432-9542 Kowloon, Hong Kong United Kingdom Tel 49-6172-9552-0
E-Mail: belfuse@belf.com Tel 852-2328-5515 Tel 44-1772-556601 Fax 49-6172-9552-40
Website: www. belfuse.com Fax 852-2352-3706 Fax 44-1772-561008
