424 Datasheet, PDF (1/2 Pages) Littelfuse – SURFACE MOUNT FUSES

SURFACE MOUNT FUSES
No. 424 / X-SMQ
This product is not recommended
for new designs. Please refer to
Littelfuse No. 154.
Dimensions (mm)
10
5
Pad Layout
4,24+0,05
2,13+0,05 4,24+0,05
Limits for Pre-arcing Time
Rated Current
62mA ... 7.00A
2.0 x I_N
< 5s
UL 248-14, 125V, F
Holder with mounted fuse No. 419
Time-Current Characteristic
Quick acting (F)
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
Packaging
010: Blister tape 38 cm reel (1500 pcs.)
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 - 0.1mm²
Thickness - 0.035mm
Mounting
Avoid circuit traces below the fuse
Marking on fuse
F, Current Rating
Unit Weight
0.4g (approx.)
Permissible continuous operating current is ≤ 70% at ambient temperature of 23ºC (73.4ºF).
Rated
Amp
Voltage Breaking Voltage Drop Power Dissipation
Current
code
Rating
Capacity
1.0 x I_N
typ. (mV)
1.0 x I_N
typ. (mW)
62mA
0062
125V
1600
85
125mA
0125
125V
1300
120
250mA
0250
125V
950
150
500mA
0500
125V
360
200
750mA
0750
125V
350
300
1.00A
1100
125V
50A/125VAC/DC ₂₁₀
230
1.50A
1150
125V
50-60Hz
250
500
2.00A
1200
125V
cos ϕ = 1.0
180
400
2.50A
1250
125V
220
550
3.00A
1300
125V
160
600
4.00A
1400
125V
140
670
5.00A
1500
125V
130
750
7.00A
1700
35A / 125VAC
100A / 125VDC
125V
50-60Hz
130
1200
cos ϕ = 1.0
*) Please note: The holder no. 424 is lead-free, but not the inserted fuse no. 419
Melting Integral
10 x I_N
min. (A²s) typ.
0.00014
0.00085
0.0065
0.093
0.25
0.50
1.10
1.10
1.20
2.00
4.30
7.50
0.000095
0.00067
0.0052
0.074
0.20
0.42
0.95
0.90
0.95
1.70
3.42
6.80
13.60
11.60
Approbationen
•
•
•
•
•
•
•
•
•
•
•
•
•
Order
Information
Qty.
Order-
Series Amp Code Packaging
Number 424
Specifications are subject
to change without notice
WebSite
Europe Tel: [phone] Americas Tel: [phone]
Asia Tel: [phone]
China Tel: [phone]
050912 www.wickmanngroup.com E-mail: [e-mail] E-mail: [e-mail] E-mail: [e-mail] E-mail: [e-mail]