LITTELFUSE 0242

Special Application Fuses
242 Series Barrier Network Fuse
Barrier Network Fuse 242 Series
Description
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offers a range of fuses designed to enable greater safety
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Features
UÊ iiÌÃÊ>ÀÀˆiÀÊ iÌܜÀŽÊ
-Ì>˜`>À`ÃÊ­ xääÓä®Ê
for hazardous
applications.
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rating. Meets the
Agency Approvals
Agency
1500A minimum.
UÊ Û>ˆ>Liʈ˜ÊLœÌ…Ê>݈>Ê
lead and surface
mount.
Agency File Number
Ampere Range
Recognized under the
components program
of Underwriters Laboratories
(JDYX2-10480)
Applications
UÊ /Þ«iʈʫÀœÌiVÌi`Ê
electrical equipment;
Electrical connections
and components, Test
equipment
0.050 - 0.250 A
Electrical Characteristics
% of Ampere
Rating
Opening Time
100%
4 hours, Minimum
300%
10 seconds, Maximum
1000%
0.002 seconds, Maximum
Electrical Characteristics
Agency
Approvals
Amp
Code
0.050
.050
Red
11.34
0.000103
x
0.080
.080
Green
8.19
0.000214
x
3.60
0.000977
x
3.00
0.00157
x
Interrupting
Rating
0.100
.100
Õi
0.160
.160
Violet
0.200
.200
ÀœÜ˜
2.68
0.0038
x
0.250
.250
>VŽ
1.6
0.00579
x
4000A @
250VAC/VDC
© 2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/242.html for current information.
343
Revised: September 20, 2011
242 Series
Body
Color
Coding
Nominal
Nominal
Cold
Melting
Resistance 2
I t (A2 Sec.)
(Ohms)
Ampere
Rating
(A)
Barrier Network Fuse 242 Series
Introduction
to Application
Circuit Protection
Special
Fuses
242 Series Barrier Transientology
Network Fuse
Dimensions
.080A
.100A
.125A
.160A
.200A
.250A
.050A
Average Time Current Curves
4.60mm
(.181")
100
1.90mm
(.075")
3.02mm
(.119")
TIME IN SECONDS
.635mm
(.025")
8.40mm
(.331")
10
1
4.60mm
(.181")
1.90mm
(.075")
3.02mm
(.119")
0.1
8.40mm
(.331")
0.01
9.80mm
2.90mm
0.001
0.0001
0.01
0.1
1
10
100
3.20mm
1000
CURRENT IN AMPERES
Soldering Parameters
Reflow Condition
Pb – Free assembly
Pre Heat
- Temperature Max (Ts(max))
200°C
- Time (min to max) (ts)
60 – 180 secs
5°C/second max
TS(max) to TL - Ramp-up Rate
5°C/second max
- Temperature (TL) (Liquidus)
217°C
- Temperature (tL)
60 – 150 seconds
+0/-5
Peak Temperature (TP)
250
Time within 5°C of actual peak Temp. (tp)
20 – 40 seconds
Ramp-down Rate
5°C/second max
Time 25°C to peak Temperature (TP)
8 minutes Max.
Do not exceed
260°C
TL
TS(max)
tL
Ramp-down
Preheat
TS(min)
tS
25
time to peak temperature
(t 25ºC to peak)
°C
Wave Soldering
Time
260°C, 10 seconds max.
Part Numbering System
Product Characteristics
Operating Temperature
–40OC to 125OC.
Thermal Shock
Withstands 5 cycles of – 55OC to
125OC
Vibration
Per MIL-STD-202F
Insulation Resistance
(After Opening)
Greater than 10,000 ohms.
Barrier Network Fuse 242 Series
Critical Zone
TL to TP
Ramp-up
Average ramp up rate (Liquidus Temp
(TL) to peak
Reflow
tP
TP
150°C
Temperature
- Temperature Min (Ts(min))
0242.050UAT1
SERIES
AMP CODE
Refer to Amp Code column in the
Electrical Specifications table.
QUANTITY & PACKAGING CODE
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344
© 2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/242.html for current information.