050912
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500mA 0500 125V 430 230 0.22 0.29 •
750mA 0750 125V 300 270 0.75 1.0 •
1.00A 1100 125V 270 435 1.60 2.2 •
1.50A 1150 125V 150 270 3.20 5.0 •
2.00A 1200 125V 165 380 5.50 6.8 •
2.50A 1250 125V 130 400 8.50 11.0 •
3.00A 1300 125V 125 450 11.0 14.5 •
3.50A 1350 125V 112 512 21.0 28.0 •
4.00A 1400 125V 110 560 30.0 40.0 •
5.00A 1500 125V 100 620 50.0 74.0 •
cURus
50A / 125VAC
50-60Hz
cos ϕ = 1.0
50A / 80VDC
35A / 125VAC
50-60Hz; cos ϕ = 1.0
50A / 80VDC
5
3,7
10
4,24+0,05 2,13+0,05 4,24+0,05
3,81
+0,05
*)
SURFACE MOUNT FUSES
No. 425 / X-SMQ
Dimensions (mm)
Order Qty. Order- Series Amp Code Packaging
Information Number 425
Pad Layout
Permissible continuous operating current is ≤ 70% at ambient temperature of 23ºC (73.4ºF).
Limits for Pre-arcing Time
Rated Current 2.0 x I
N
500mA ... 5.00A 1s ... 60s
Specifications
Packaging
010: Blister tape 38 cm reel (1500pcs.)
tape width 16 mm
Materials of the Holder
Housing: Holder plastics UL94 V-O
Terminals: Copper alloy, Ni+Sn plated,
lead free
Operating Temperature
-55ºC to +125ºC (consider de-rating)
Climatic Category
-55ºC/+125ºC/21 days (IEC 60068-2-1...3)
Stock Conditions
+10ºC to +60ºC
relative humidity ≤ 75% yearly average,
without dew, maximum value for 30 days-95%
Vibration Resistance
24 cycles at 15 min. each (IEC 60068-2-6)
10 - 60Hz at 0.75mm amplitude
60 - 2000Hz at 10g acceleration
Solderability
235ºC, 3 sec. (IEC 60068-2-58)
Soldering Heat Resistance
260ºC, 10 sec. (IEC 60068-2-58)
280°C, 5 sec.
Minimum Cross Section, Copper
Conducting path - 0.1mm
2
Thickness - 0.035mm
Mounting
Avoid circuit traces below the fuse
Marking on fuse
T, Current Rating
Unit Weight
0.4g (approx.)
UL 248-14, 125V, T
Holder with mounted fuse No. 420
Time-Current Characteristic
Time Lag (T)
Standard
UL 248-14
CSA C22.2 No. 248.14
Approvals
cULus Recognized
Features
Easy exchange of the fuse
For line or low voltage applications
Low voltage drop
Internationally approved
High pulse resistance
For reflow soldering
WebLinks
Further info see:
www.wickmanngroup.com
Further application info see Fuseology:
www.wickmann.com/download/fuseology.pdf
Specifications are subject
to change without notice
Rated Amp Voltage Breaking Voltage Drop Power Dissipation Melting Integral Approvals
Current code Rating Capacity 1.0 x I
N
1.0 x I
N
10 x I
N
typ. (mV) typ. (mW) min. (A
2
s) typ.
*) Please note: The holder no. 425 is lead-free, but not the inserted fuse no. 420
This product is not recommended
for new designs. Please refer to
Littelfuse No. 154T.