0157004.DR Littelfuse Inc, 0157004.DR Datasheet - Page 2

• Manufacturer Part Number: 0157004.DR
• Description: FUSE NANO 4A FAST W/CLIP SMD
• Manufacturer: Littelfuse Inc
• Series: 157r

Specifications of 0157004.DR

• Fuse Type: Fast Acting
• Voltage - Rated: 125VAC, 125VDC
• Current: 4A
• Package / Case: SMD w/Holder
• Size / Dimension: 0.256" L X 0.106" W X 0.106" H (6.50mm x 2.69mm x 2.69mm)
• Mounting Type: Holder/Surface Mount
• Operating Temperature: -55°C ~ 125°C
• Dc Cold Resistance: 0.016 Ohm
• Melting I²t: 3.152
• Voltage Rating Vac: 125V
• Voltage Rating Vdc: 125V
• Fuse Current: 4A
• Breaking Capacity: 300A @ 32VDC / 50A @ 125VAC/VDC
• External Depth: 6.5mm
• Blow Characteristic: Very Fast Acting
• External Width: 3.7mm
• Lead Free Status / RoHS Status: Lead free by exemption / RoHS Compliant
• Color: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free by exemption / RoHS Compliant
• Other names: 157004

Note:
1. Derating depicted in this curve is in addition to the standard derating of 25% for
157 Series
Temperature Rerating Curve
Soldering Parameters
Reflow Condition
Pre Heat
Average ramp up rate (Liquidus Temp
(T
T
Reflow
Peak Temperature (T
Time within 5°C of actual peak
Temperature (t
Ramp-down Rate
Time 25°C to peak Temperature (T
Do not exceed
continuous operation.
S(max)
L
) to peak
to T
L
- Ramp-up Rate
- Temperature Min (T
- Temperature Max (T
- Time (Min to Max) (t
- Temperature (T
- Temperature (t
p
)
P
)
L
L
)
) (Liquidus)
Introduction to Circuit Protection
Introduction to Circuit Protection
NANO
s(min)
s(max)
s
)
P
)
)
)
2®
> 157 Fuse and Holder Combination
Pb – Free assembly
150°C
200°C
60 – 120 secs
5°C/second max.
5°C/second max.
217°C
60 – 90 seconds
250
20 – 40 seconds
5°C/second max.
8 minutes max.
260°C
+0/-5
Surface Mount Fuses
°C
96
Transientology
Average Time Current Curves
T
T
10.000
S(max)
1.000
0.100
0.010
0.001
S(min)
25
T
T
0.01
P
L
time to peak temperature
Please refer to www.littelfuse.com/series/157.html for current information.
(t 25ºC to peak)
0.1
t
Preheat
S
CURRENT IN AMPS
1
Specifications are subject to change without notice.
Ramp-up
10
t
P
t
L
100
Time
© 2009 Littelfuse, Inc.
Ramp-down
Critical Zone
T
L
to T
P