Type MS
MSD0199
Slow Blow Micro Fuse
Catalog
Number
Ampere
Rating
Typical
Volt-drop Melting I
2
T Melting I
2
T Maximum
Cold
@100%
In
< 10 mSec
@10
In
Power
Resistance
Dissipation
(ohm)
(Volt) max. (A
2
Sec)
(A
2
Sec)
(W)
MS 250
MS 300
250mA
300mA
375mA
500mA
750mA
1A
1.25A
1.5A
2A
2.5A
3A
4A
5A
7A
3.20
2.57
1.66
1.07
0.55
0.36
0.23
0.18
0.12
0.08
0.06
0.04
0.02
0.01
2.20
2.02
1.69
1.42
1.09
0.91
0.77
0.70
0.59
0.50
0.45
0.38
0.29
0.25
0.047
0.063
0.111
0.20
0.46
0.81
1.44
1.9
3.4
6.0
8.0
14
33
59
0.042
0.056
0.101
0.18
0.44
0.78
1.41
1.9
3.4
6.1
8.1
15
35
63
0.80
0.82
0.85
0.88
0.94
0.98
1.01
1.03
1.08
1.12
1.14
1.19
1.26
1.31
Electrical Characteristics
(UL/CSA STD.248-14)
Blow Time
Testing current
Minimum
100%
200%
4 Hrs.
N/A
Maximum
N/A
30 Sec
MS 375
MS 500
MS 750
MS 1
MS 1.25
MS 1.5
MS 2
MS 2.5
MS 3
MS 4
MS 5
MS 7
Approvals
Safety Agency Approvals
r脽c
Amp range / Volt @ I.R. ability
250mA - 7A/125V @ 50A ac; 300A dc.
r
Recognized File No. E20624
脽
Certified File No. LR39772
Consult manufacturer for other ratings
Enviromental Specification
Operating Temperature
-55潞C to +125潞C
Soldering Heat Resistance
260潞C, 10 sec. per IEC 68-2-20
Moisture Resistance
MIL-STD-202F, Method 106
Salt Spray
MIL-STD-202, Method 101, Condition B (48Hrs)
Shock Resistance
MIL-STD-202, Method 213, Condition I (Sawtooth)
Vibration Resistance
10-55 Hz x 3 axis/ no load (MIL-STD-202, Method 201)
Packaging
1. In bulk:
1,000 pcs per box
2. On Axial Tape & Reel:
2,500 pcs per reel
3. Tape & Reel specification:
per EIA-296-E & IEC 286-1
@ 5mm Pitch and 52.4mm inside Tape Spacing
Mechanical Dimensions
Physical Specification
Materials
Body:
Molded with UL Recognized epoxy component plastic,
UL 94-V0
Lead Wire:
Tin-lead plated Copper, Diameter 0.032" for all ratings
Marking
On fuse:
鈥渂el鈥? 鈥淢S鈥? 鈥淐urrent Rating鈥? 鈥?25V鈥?printed in green
color
On label:
Above info plus 鈥渞脽c鈥?and interrupting rating
MS
0.280"
鹵
0.020
(7.1
鹵
0.5mm)
1.5"
鹵
0.08
0.125"
鹵
0.004
(38.1
鹵
2.0mm)
(3.18
鹵
0.1mm)
SEE LEAD SIZE LISTED IN 鈥?MATERIAL鈥?/div>
Specifications subject to change without notice
Bel Fuse Inc.
198 Van Vorst Street, Jersey City, NJ 07302 鈥?Tel: 201-432-0463 鈥?Fax: 201-432-9542 鈥?E-Mail: belfuse@belfuse.com
Internet: http://www. belfuse.com
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