FUSES
/ SICHERUNGEN
Non resettable fuses
Surface
Mount Fuses
Type OMF 250
quick-acting F
available in lead-free
NEW
version
directly solderable on
printed circuit boards
OMF 250
1:1
Pre-arcing time in seconds t
s
50
75
100
Solder pads
Standards
IEC 60127-4/2; EN 60127-4/2
UL 248-14
CSA C22.2 No. 248.14
Multiple of rated current I
n
}
with modifications based on IEC…/EN…
Approvals, Patents
UL
CSA
2 · I
n
10 · I
n
min.
1 ms
max.
10 ms
VDE
Pre-arcing time/current
characteristic (at T
a
23 °C)
Rated
current I
n
/
n · I
n
1,25 · I
n
*
min.
Patents in U.S. (No. 4,851,806) and in further countries
250 mA – 4 A
1h
IEC
max.
120 s
UL/CSA
max.
60 s
*
Non fusing current I
nf
Order No.
/
Rated current I
n
Breaking capacity
/
Rated voltage U
n
/
Ausschaltvermögen
n
Nenn-
n
Voltage drop
Spannungsfall
at
/ bei
I
n
max.
IEC 60127 typ.
mV
mV
800
435
750
395
700
230
600
190
500
170
400
200
300
170
300
150
300
150
300
140
300
130
300
130
300
100
3403.0010.XX 250 mA / 250 V
3403.0011.XX 315 mA / 250 V
3403.0012.XX 400 mA / 250 V
3403.0013.XX 500 mA / 250 V
3403.0014.XX 630 mA / 250 V
3403 0015.XX 800 mA / 250 V
3403.0016.XX 1
A / 250 V
3403.0017.XX 1,25 A / 250 V
3403.0018.XX 1,6
A / 250 V
3403.0019.XX 2
A / 250 V
3403.0020.XX 2,5
A / 250 V
3403.0021.XX 3,15 A / 250 V
3403.0022.XX 4
A / 250 V
3403.0022.XX
Packaging index
100 A / 250 V AC
p.f. /
cos 1
100 A / 250 V DC
Sustained
power dissipation
Verlustleistung
at
/ bei
1,25 I
n
max.
IEC 60127
typ.
mW
mW
500
110
500
125
500
190
500
190
500
230
500
330
500
390
1000
390
1000
490
1000
600
1000
670
1200
870
1500
950
Pre-arcing
l
2
t
Schmelz I
2
t
at
/ bei
10 · I
n
typ.
A
2
s
9 · 10
-3
1,7 · 10
-2
2 · 10
–2
4 · 10
-2
8 · 10
-2
1,3 · 10
-1
2,3 · 10
-1
4,7 · 10
-1
8,4 · 10
-1
1,4
2,6
4,3
8,6
Approvals
wave
reflow
soldering soldering
CSA
CSA
•
•
•
•
•
•
•
•
•
•
•
•
•
VDE
VDE
•
•
•
•
•
•
•
•
•
•
•
UL
UL
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Additional technical data and packaging see page 60
58
www.schurter.com
FUSES
/ SICHERUNGEN
Non resettable fuses
Technical data and
packaging
Types OMF 63
OMF 125
OMT 125
OMF 250
OMT 250
Additional technical data
Ambient temperature max. T
a
Permissible continuous operating
current at 23 °C
/
Zulässiger Dauerstrom bei 23 °C
– 40 °C
to
+ 85 °C
OMF 63
OMF 125
OMT 125
OMF 250
OMT 250
OMF 63, OMF 125, OMT 125, OMF 250, OMT 250
}
}
0,7
0,8
I
n
I
n
}
Shift of the rated current at ambient air temperatures
> 23 °C see diagramm on page 204
Resistance to vibration
/
Frequency 10 ÷ 2000 Hz, cross-over frequency 60 Hz
< 60 Hz constant Amplitude of 0,75 mm
> 60 Hz constant acceleration of 100 m/s
2
(10 g); OMF 250, OMT 250: 196 m/s
2
(20 g)
according to IEC 60068-2-6, Test Fc
Resistance to shock
Climatic category
Solderability (Reflow- and Wave soldering)
Soldering heat resistance
Fuse-link temperature rise
≤
75 K (UL/CSA)
/
Temperaturerhöhungen am
Si-Einsatz
≤
75 K (UL/CSA)
Storage temperature max.
Materials
Housing
Terminals
/
981 m/s
2
(100 g), 6 ms, IEC 60068-2-27 test Ea
GPF
according to
DIN 40040
235 °C / 2 sec. IEC 60068-2-58 /
test
Td
260 °C / 10 sec. IEC 60068-2-58 /
test
Td
trackwidth for:
Leiterbahnbreite für:
40 °C / 70%
r. H
Temperature resistant plastic, flammability class UL 94V-0
Brass, tin plated
I
n
≤
5 A:
I
n
6,3/7A
I
n
8/10A
≤
5 mm
≥
5 mm
≥
10 mm
Net weight pieces %
/
Nettogewicht % Stück
Packaging
Bag or tape
/ Beutel oder Gurt
OMF 63
and
OMT 125: 10 g
OMF 250 / OMT 250: 35 g
Type
/ Typ
OMF 63
3402.XXXX.11
3402.XXXX.22
3402.XXXX.24
Bag of 100 pieces
/ lose Beutel geschüttet à 100 Stück
Taped and reeled 750 pieces
/ Blistergurt à 750 Stück auf Rolle
Taped and reeled 2000 pieces
/ Blistergurt à 2000 Stück auf Rolle
Taped and reeled 3000 pieces
/ Blistergurt à 3000 Stück auf Rolle
Blistertape and reel
according to IEC 286-3
Types
/ Typen
OMF 125 / OMT 125
3404.XXXX.11
3404.XXXX.22
Types
OMF 250 / OMT 250
3403.XXXX.11
3403.XXXX.24
3404.XXXX.24
Types
/
Typen
E
Dimensions
in mm
A
B
8
8
8
8
8
16
16
16
24
24
OMF 63
OMF 125
OMT 125
OMF 250
OMT 250
C
D
E
(max.) (max.) (750) (2000) (3000)
18,4
22,4
180
330
18,4
22,4
180
330
18,4
22,4
180
330
26,4
30,4
330
26,4
30,4
330
60
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