Micro Fuses
Type MEF
Fast Acting Radial Lead Micro Fuse Series
Approvals
VDE
CSA Acceptance
UL Recognized
MITI
SEMKO
CCC
50mA ~ 6.3A
50mA ~ 6.3A
50mA ~ 6.3A
1A ~ 5A
50mA ~ 5A
50mA ~ 5A
Cartridge
Catalog
Number
MEF
.050
MEF
.063
MEF
.080
MEF
.100
MEF
.125
MEF
.160
MEF
.200
MEF
.250
MEF
.315
MEF
.400
MEF
.500
MEF
.630
MEF
.800
MEF
001
MEF
1.25
MEF
1.60
MEF
002
MEF
2.50
MEF
3.15
MEF
004
MEF
005
MEF
6.30
Ampere
Rating
[In]
50 mA
63 mA
80 mA
100 mA
125 mA
160 mA
200 mA
250 mA
315 mA
400 mA
500 mA
630 mA
800 mA
1A
1.25 A
1.6 A
2A
2.5 A
3.15 A
4A
5A
6.3 A
Voltage
Rating
(V)
Nominal
Resistance
Cold Ohms
4.1970
2.8020
1.8650
1.7410
1.2620
0.8290
0.4850
0.3670
0.2720
0.1940
0.1290
0.0960
0.072
0.0520
0.0430
0.0310
0.0260
0.0190
0.0140
0.0110
0.0083
0.0061
Voltage
Drop
(mv)MAX
650
500
400
350
350
330
300
250
230
210
170
150
130
120
120
110
110
100
100
100
90
80
Nominal
Melting I
2
t
A
2
Sec
0.000325
0.001580
0.003200
0.005000
0.006250
0.007680
0.024000
0.043750
0.059530
0.080000
0.083000
0.119000
0.192000
0.300000
0.468700
0.896000
1.200000
2.500000
3.969000
7.200000
15.000000
47.628000
Electrical Characteristics
2.75In
4 In
10 In
Rated 1.5In 2.1In
Current MIN MAX MIN MAX MIN MAX MAX
50mA ~
60
30
10
3
300
20
3 sec
5A
min
min ms
ms
ms
ms
60
30
10
3
300
20
6.3 A
5 sec
min
min ms
ms
ms
ms
250V
Interrupting Ratings
35 amperes or 10 x rated current; whichever is greater
at 250V AC.
Environmental Specification
Operating Temperature
-55°C to +125°C
Shock
MIL-STD-202, Method 213, Condition 1 (Saw tooth)
Vibration
MIL-STD-202, Method 201(10-55 Hz x 3axis/no load)
Salt Spray
MIL-STD-202, Method 101, Test Condition B (48Hrs)
Insulation Resistance
MIL-STD-202, Method 302, Test Condition A
(After Opening) 10, 000 ohms minimum
Resistance to Solder Heat
MIL-STD-202, Method 210, Test Condition F
(10sec, at 260°C)
Thermal Shock:
MIL-STD-202, Method 107, Test Condition B
(-65°C to +125°C)
Mechanical Dimensions
Physical Specification
Materials
Base and Cap: Black thermoplastic, UL 94-V0
Pin: Tin-lead plated alloy
Packaging
1. In bulk: 1, 000 pcs per box.
2. On Tape: Ammo pack, 1, 000 pcs box
Mersen Canada Toronto Inc.
88 Horner Avenue, Toronto,Ontario M8Z 5Y3
Tel: (416) 252-9381
Fax: (416) 252-6572
Web: www.ca-ferrazshawmut.mersen.com
E-mail: customerservice.tor@mersen.com
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