FCSL Datasheet, PDF (1/2 Pages) Ohmite Mfg. Co. – Metal Foil Current Sense

FCSL Series
Metal Foil Current Sense
Ohmite continues to add to its complement
of Current Sense offerings with the FCSL
Series. FCSL incorporates proven metal foil
technology to produce the ultimate in a cur-
rent sense resistor. FCSL features the effec-
tive combination of very low and stable TCRs
(Temperature Coefficient of Resistance) avail-
able in a wide selection of very low ohmic
values. Power ratings up to 10 Watts makes
FCSL the ideal choice for your current sens-
ing applications.
F e at u r e s
• Foil Construction ensures a very stable TCR (Temperature
Coefficient of Resistance)
• Designed for automatic insertion
• Industry standard sizes
• High heat resistant use
• Low heat electromotive use
• Color: white (top) and green (bottom)
Series specifications
Power Resistance TCR Weight
Series Rating Range (mΩ) Tol. (ppm/°C) (g)
FCSL64 2.0W
1m
±5% ±150

2m
±2% ±100
3m ~ 100m ±1% ±50
10m ~ 50mΩ ±0.5% ±50
0.036
FCSL76 3.0W
1m
±5%

2m
±2%
3m ~ 100m ±1%
±150
±100
±50
0.050
FCSL90 4.0W
1m
±5%

2m
±2%
3m ~ 100m ±1%
±150
±100
±50
0.071
FCSL110 5.0W
1m
±5% ±150

2m
±2% ±100
3m ~ 100m ±1% ±50
10m ~ 50mΩ ±0.5% ±50
0.096
FCSL150 10.0W 1m
±5% ±100 0.316

2m
±2% ±100
3m ~ 100m ±1% ±100
(>9m:±50)
Derating
100
80
60
40
20
0
-55
(10W)
0
50 70 100
155
Ambient Temperature, °C
Recommended Reflow
Temperature Profile
For lead free soldering (Sn-Ag-Cu
solder)
Preheating: 130° ~ 180° 60s ~ 90s
Heating: Over 220° 30s ~ 90s
Peak:
240° ~ 260° Max. 10s
Max. number of reflow: 2
300
250
Peak 240 ~ 260℃ Max. 10s
200
150
Heating
Over 220℃
Preheating
30s ~ 90s
100
130 ~ 180℃
60 ~ 90 sec.
50
Time (sec.)
C h a r a c t e r i s t i cs
Test
Overload
Max. temperature
for rated power
Operating
temp. range
Rated voltage
In-rush current*
Rapid change of
temperature
Solderability
Endurance at
70°C
Resistance to
soldering heat
Moisture
resistance
Terminal strength
Condition
(10W) Rated power x1.5, 5s
70°C
(10W: 100°C)
-55°C ~ +155°C
√(Rated power x Resistance
value) V
Rated current 10 msec ON,
60 sec OFF, 10 cycles* (see
table below)
-55°C (30min.)/+155°C
(30min.), 100 cy.
-40℃ (30min), Room temp
(3min), +125℃ (30min),
Room temp (3min), 1000 cy.,
FCSL150 only
245°C ±5°C for 3 ±0.5 sec.
70°C ±3°C, Rated voltage
1.5h ON, 0.5h OFF, 1000h
260°C ±5°C for 10 ±1 sec.
60°C ±2°C, 90~95% RH,
Rated voltage 1.5h ON, 0.5h
OFF, 1000h
10W: Bending width: 2mm
for 10s±1s, Glass epoxy sub-
strate 1.6mm thick
Maximum ∆R
±(1.0%+0.0005Ω)
±(1.0% +0.0005Ω)
±(1.0% +0.0005Ω)
±0.6%
Min. 90% cover-
age
±(1.0% +0.0005Ω)
±(0.5% +0.0005Ω)
±(2.0% +0.0005Ω)
±(1.0%+0.0005Ω)
*In-rush Current

1mΩ~10mΩ
Rated In-rush Max.
Series Wattage Power Current
FCSL64 2W
FCSL76 3W
FCSL90 4W
FCSL110 5W
FCSL150 10W
225W
325W
440W
600W
700W
125A
150A
180A
240A
270A
12mΩ~100mΩ
In-rush Max.
Power Current
150W
210W
300W
440W
470W
70A
80A
100A
120A
140A
In-rush current = √(in-rush
power/resistance value), or
max. current, whichever is
smaller
6
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