Data Sheet

Type UMTS 250V UMF
Square Ceramic Surface Mount Time Lag Fuse
belfuse.com/
circuit
-
protection
UMTS
Series
–
4818
Size
RoHS 2 Compliant
Features
-
Ti
me lag
-
250VAC, Voltage Rating
-
Wide range of current rating from 250mA to 6.3A
-
Wide operating temperature range
-
Tape & Reel for auto
-
insert SMD process
-
RoHS 2
compliant
-
Halogen Free
-
Leadfree
Applications
-
Lighting system
-
LCD monitor
-
Office electronic equipment
-
Industrial equipment
-
Medical equipment
-
Power supply
Electrical Characteristics
(
Per IEC60127
-
4
)
Safety Agency
Approvals
Testing
Current
Blow Time
Minimum
Maximum
125
%
1
Hr
.
N/A
200%
N/A
2 Min.
10
00%
0.01 Sec
0.
1
Sec
Physical Specifications
Materials
Body : Ceramic
Terminations : Brass Caps, gold plated with nickel undercoating
Marking
On Fuse :
"bel", "T", "Current Rating", "L","250V",in black color.
On Label :
"bel",
"UMTS", "Current Rating", "Voltage Rating", "Interrupting Rating",
"
Appropriate Safety Logos" and "
", "
"(China RoHS
compliant).
Safety
Agency
Safety Agency
Certificate
Voltage Rating
(V)
Ampere Range / Volt
@ I.R. ability*
E315341
250mA
–
6.3A/250V AC
250
mA
-
6.3A/250V@150A AC
/350V@100A DC
R
50399509
Tested according to
IEC60127
-
1:2006+A1+A2
IEC 60127
-
7:2016
1.6A/250V AC
/
350V AC
1.6A/250V
@150A
AC
/
350V@100A AC
*I.R.=
Interrupting Rating = Short Circuit Rating(Amps)
LEAD FREE =
HALOGEN FREE =
Specifications
subject to change without notice