OMF Quick-acting, OMT Time Lag
Surface Mount Fuses
OMF/OMT 125V/250V
IEC 127-4/2; EN 60127-4/2
UL 248-14 (formerly 198.G)
CSA C22.2 No. 248.14 (formerly 59.2M)
OMF 250V
OMF Approvals:
NEW
Surge tolerant / telecom
version for OMF: see
page 162
UL
recognition 250mA-4A File #E41599
Enlargement
CSA certification 250mA-4A File #LR51172
VDE approval 250mA-4A* File #6079, expert report
* 250mA-4A using wave solder process
250mA-2.5A using reflow solder process
OMT Approvals:
UL recognition 750mA-2A/250V File #E41599
2.5A-5A/125V File #E41599
CSA certification 750mA-2A/250V File #E41599
2.5A-5A/125V
File #E41599
Solder pad
ts
OMF Pre-arcing time/current characteristics (at Tamb 23˚C)
1000
100
n • In
1.25 • In *
2 • In
10 • In
OMT 250V
rated current In
IEC / UL
CSA
> 1 h
> 1 h
< 120s
< 60s
1 ms - 10 ms
1 ms - 10 ms
250mA - 4A
Spool
Tape
10
*non-fusing current Inf
1
OMT Pre-arcing time/current characteristics (at Tamb 23˚C)
n • ln
1• In*
UL
2 • In
UL
0,1
according to
IEC 286-3
3 • In
min.
100 ms
8 • In
rated current In
,4
min.
4 h
min.
1 s
max.
60 s
max.
3 s
min.
5 ms
max.
0.01
750mA - 5A
50 ms
0.001
n
1
2
3
4
5
6
8
10
*non-fusing current Inf
Multiple of rated
Multiple of rated current In
Technical Data
OMF: 250V AC/DC, OMT: 125V/250V AC
Rated voltage Un
Rated current
see chart
OMF quick-acting, see chart for values (low I2t)
OMT time-lag, see chart for values (low l2t)
Time current characteristic
Marking
OMF 250 / OMT 250 / OMT 125, rated current, rated voltage, logo , UL
Breaking capacity
see chart
Max. storage temperature
Ambient temperature max. Tamb
40˚C / 70% relative humidity
OMF: -40˚C to +125˚C
OMT: -40˚C to + 85˚C
Frequency 10-2000 Hz, cross-over frequency 60 Hz, resp. acceleration
Vibration resistance
Shock resistance
Climatic category
198 m/s2(OMF), 196 m/s2(OMT); according to IEC 68-2-6, Test Fc
981 m/s2, 6 ms, according to IEC 68-2-27
OMF: HPF according to DIN 40040
OMT: GPF according to DIN 40040
Solderability (reflow and wave soldering)
Soldering heat resistance
Material: Housing
235˚C / 2 sec. according to IEC 68-2-58 / Td
260˚C / 10 sec. according to IEC 68-2-58 / Td
temperature resistant plastic (UL 94V-0)
brass, tin-plated
Terminals
Net weight (per hundred)
35 g
2
Order Numbers Rated curr. /
voltage
Breaking
Capacity
Volt. drop Power
@ I diss.@I
Order
Numbers
Rated curr.
/ voltage
Breaking
capacity
Volt.
Power diss. Pre-arcing
Packaging
Fusing I t at
2
drop at I
at 4 • I
I t at 8 • I
n
n
n
4 • I
n
n
n
Series
OMF 250V
Series
OMT 250V
A ~
typical
max. mV Watts
typical max.
A ~
typical
mV
Order No.
Suffix
2
2
2
mA / A / V ~ ac / dc
A s
A s
mA / A / V ~ ac / dc
typical mW typical As
OMF 250V
packaged loose:
.XX = .11
3403.0010.XX
3403.0011.XX
3403.0012.XX
3403.0013.XX
3403.0014.XX
3403.0015.XX
3403.0016.XX
3403.0017.XX
3403.0018.XX
3403.0019.XX
3403.0020.XX
3403.0021.XX
3403.0022.XX
250 mA / 250V
315 mA / 250V
400 mA / 250V
800
750
700
600
500
400
300
300
300
300
300
300
300
0.009
0.017
0.02
0.04
0.08
0.13
0.23
0.47
0.84
1.4
3403.0129.XX 750 mA / 250V 100A /
107
90
89
80
90
111
0.3
0.6
1
0.109
0.125
0.19
0.19
0.23
0.33
0.39
0.39
0.49
0.6
0.67
0.87
0.95
0.063
0.099
0.16
0.25
0.4
0.64
1
1.53
2.56
4
3403.0116.XX 1 A / 250V
250V AC
3403.0117.XX 1.25 A / 250V p.f. = 1
500 mA / 250V
2,000 pieces
taped & reeled:
.XX = .24
100A /
630 mA / 250V
250V AC
3403.0130.XX 1.5 A/ 250V
3403.0119.XX 2 A/ 250V
50A / 250V 74
AC p.f. = 1 69
111
138
2
4
800 mA / 250V
p.f. = 1
1 A / 250V
OMT 250V
packaged loose:
.XX = .11
100A /
125V AC
p.f. =1
1.25 A / 250V
3403.0120.XX 2.5 A / 125V
3403.0131.XX 3 A / 125V
3403.0132.XX 3.5 A / 125V
3403.0122.XX 4 A / 125V
3403.0123.XX 5 A/ 125V
68
62
60
60
57
170
186
210
240
285
7
100A /
1.6 A/ 250V
250V DC
12
19
23
37
2 A/ 250V
2.5 A / 250V
3.15 A / 250V
4 A / 250V
2.6
4.3
8.6
6.3
9.9
16
2,000 pieces
taped & reeled:
.XX = .24
Schurter, Inc. • Phone 707-778-6311 • Fax 707-778-6401 • E-mail info@schurterinc.com • Website http://www.schurterinc.com
134
SCHURTER [ SCHURTER INC. ]
