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8
FC4L Series
FC4L Four Terminal Current Sense
Metal Foil Construction
Ohmite extends its FC4L Series with this 4-terminal Kelvin
type FC4L derivative in 2 watt and 5 watt package sizes.
Employing the same Ni-Cu-Mn resistive element this prod-
uct affords the user an added advantage of a built in 4-ter-
minal design with 2 larger electrodes for current manage-
ment and 2 smaller electrodes for current measurement.
Power Resistance TCR Weight
Series Rating Range Tol. (ppm/°C) (g)
FC4L16 0.25W 5m, 10m, 20m, ±1% ±50 0.004
50mΩ ~ 100mΩ
FC4L32 1W 1mΩ ±5% ±100 0.015
2mΩ ±2% ±100
3mΩ ±1% ±100
4mΩ ~ 500mΩ ±1% ±50
FEATURES
•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)
100
Percent Rated Power
Ambient
FC4L16
Others
Temperature, °C
60
20
0
80
40
050 100 125 15570-55
SERIES SPECIFICATIONS
CHARACTERISTICS
Test Condition Maximum ∆R
Max. temperature for rated power 70°C
Operating temperature range -55°C ~ +155°C (FC4L16: -40°C ~ +125°C)
Rated voltage √(Rated power x Resistance value) V
Overload (FC4L16 only) Rated power x 1.5 for 5s ±(0.5%+0.0005Ω)
In-rush current Rated current 10 msec ON, 60 sec OFF, 10
cycles.
Power Resistance In-rush Max.
Series Rating Range Power Current
FC4L16 0.25 watt 5m, 10mΩ 2.5W 5A
FC4L32 1 watt 1mΩ~9mΩ 25W 45A
10mΩ~500mΩ 12.5W 24A
FC4L64 2 watt 1mΩ~9mΩ 100W 85A
10mΩ~100mΩ 50W 35A
FC4L110 5 watt 1mΩ~50mΩ 100W 100A
In-rush current = √(in-rush power/resistance
value), or max. current, whichever is smaller
±(1.0% +0.0005Ω)
Rapid change of temperature -55°C (30min.)/+155°C (30min.), 100 cycles
1000 cycles, FC4L16 only
±(1.0% +0.0005Ω)
±(2.0%+0.0005Ω)
Solderability 245°C ±5°C for 3 ±0.5 sec. Min. 90% coverage
Endurance at 70°C 70°C ±3°C, Rated voltage 1.5h ON, 0.5h
OFF, 1000h
±(1.0% +0.0005Ω)
Resistance to soldering heat 260°C ±5°C for 10 ±1 sec. ±(1.0% +0.0005Ω)
(±0.5% FC4L16)
Moisture resistance 60°C ±2°C, 90~95% RH, Rated voltage 1.5h
ON, 0.5h OFF, 1000h
±(2.0% +0.0005Ω)
(±1.0% FC4L16)
Derating
Power Resistance TCR Weight
Series Rating Range Tol. (ppm/°C) (g)
FC4L64 2W 1mΩ ±5% ±100 0.038
2mΩ ±2% ±100
3mΩ ±1% ±100
4m ~ 100mΩ ±1% ±50
10m ~ 50mΩ ±0.5% ±50
FC4L110 5W 1mΩ ±5% ±100 0.110
2mΩ ±2% ±50
3mΩ ~ 100mΩ ±1% ±50
10m ~ 50mΩ ±0.5% ±50
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
Temperature °C
Time (sec.)
Preheating
130 ~ 180℃
60 ~ 90 sec.
Heating
Peak
200
50
300
250
100
150 Over 220℃
30s ~ 90s
240 ~ 260℃ Max. 10s
1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com 9
A
B
P0
P2
D0
E
FW
D1P1
T
T2
Direction
of feed
A
B
P0
P2
D0
E
FW
D1P1
T
T2
Direction
of feed
W1
AH N
W2
E
PACKAGING SPECIFICATIONS
ReelTape
inches(mm)
FC4L16 FC4L32 FC4L64 FC4L110
A 0.037 (0.95±0.05) 0.075 (1.90 ±0.1) 0.135 (3.43 ±0.2) 0.213 (5.40 ±0.10)
B 0.073 (1.85±0.05) 0.138 (3.50 ±0.1) 0.261 (6.63 ±0.2) 0.453 (11.50 ±0.10)
W 0.315 (8.00±0.10) 0.315 (8.00 ±0.2) 0.472 (12.0 ±0.3) 0.945 (24.00 ±0.30)
F 0.138 (3.50±0.05) 0.138 (3.50 ±0.05) 0.069 (1.75 ±0.1) 0.069 (1.75 ±0.10)
E 0.069 (1.75±0.10) 0.069 (1.75 ±0.1) 0.217 (5.5 ±0.05) 0.453 (11.50 ±0.10)
P0 0.157 (4.00±0.10) 0.157 (4.0 ±0.1) 0.157 (4.0 ±0.1) 0.157 (4.00 ±0.10)
P1 0.157 (4.00±0.10) 0.157 (4.0 ±0.1) 0.157 (4.0 ±0.1) 0.315 (8.00 ±0.10)
P2 0.079 (2.00±0.05) 0.079 (2.0 ±0.05) 0.079 (2.0 ±0.05) 0.079 (2.00 ±0.10)
D0 0.059 (1.50+0.10/-0) 0.059 (1.50 +0.1/-0) 0.059 (1.5 +0.1/-0) 0.059 (1.50 ±0.10)
D1 0.024 (0.60±0.05) 0.039 (1.00 +0.2/-0) 0.059 (1.5 +0.2/-0) 0.059 (1.50 ±0.10)
T 0.008 (0.20±0.05) 0.008 (0.20 ±0.05) 0.008 (0.20 ±0.05) 0.012 (0.30 ±0.05)
T2 0.022 (0.55±0.05) 0.039 (1.00 ±0.2) 0.059 (1.5) max. 0.047 (1.2 ±0.15)
FC4L16 FC4L32 & 64 FC4L110
A 7.087 (180 +0/-3) 7.087 (180 +0/-3) 7.087 (180 ±2.0)
H 0.512 (13 ±0.2) 0.512 (13 ±0.2) 0.512 (13 ±0.2)
E 0.079 (2.0 ±0.5) 0.079 (2.0 ±0.5) 0.079 (2.0 ±0.5)
N 2.362 (60 +1/-0) 2.362 (60 +1/-0) 0.827 (21 ±0.8)
W1 0.354 (9.0 ±0.3) 0.512 (13.0 ±0.3) 1.000 (25.4 ±1.0)
W2 0.512 (13.0 ±0.3) 0.669 (17.0 ±1.4) 1.157 (29.4 ±1.0)
FC4L110R005FER
Series Tolerance
J=5%
G=2%
F=1%
D = 0.5%
Ohms
R005=0.005Ω
R050=0.050Ω
Taping Code
1,000 pc/reel
FC4L16: 5,000 pc/reel
RoHS Compliant
Package Size
110=11050=5W
64=6432=2W
32=3216=1W
16=1608=0.25W
TCR* (ppm)
W = 25
V = 50
L = per chart
above
*FC4L32 and FC4L64 values over 0.100Ω only
Standard Part Numbers for FC4L series
0.25 watt 1 watt 2 watt 5 watt
FC4L32R001JER FC4L64R001JER FC4L110R001JER
FC4L32R002GER FC4L64R002GER FC4L110R002GER
FC4L32R003FER FC4L64R003FER FC4L110R003FER
FC4L16R005FER FC4L32R005FER FC4L64R005FER FC4L110R005FER
FC4L64R010DER FC4L110R010DER
FC4L16R010FER FC4L32R010FER FC4L64R010FER FC4L110R010FER
FC4L64R015DER FC4L110R015DER
FC4L16R015FER FC4L32R015FER FC4L64R015FER FC4L110R015FER
FC4L64R020DER FC4L110R020DER
FC4L16R020FER FC4L32R020FER FC4L64R020FER FC4L110R020FER
FC4L64R025DER FC4L110R025DER
FC4L16R025FER FC4L32R025FER FC4L64R025FER FC4L110R025FER
FC4L64R030DER FC4L110R030DER
FC4L16R030FER FC4L32R030FER FC4L64R030FER FC4L110R030FER
FC4L64R050DER FC4L110R050DER
FC4L16R050FER FC4L32R050FER FC4L64R050FER FC4L110R050FER
FC4L16R100FER FC4L32R100FER FC4L64R100FER FC4L110R100FER
R010
3
4
1
W
L
t
2
5
1. Alumina substrate
2. Resistive element
(Ni-Cu-Mn alloy)
3. Electrode (Ni, Sn)
4. Protective coating
(Epoxy resin)
5. Marking (Epoxy
resin): wider mark
indicates “V” term.
0.5mm +0.2/-0.05
d
c
b
“V” term. “I” term.
a
b
e
c
d
(mm) a b c d e
FC4L16 0.25 1.2 0.40 0.30 1.2
FC4L32 0.4 2.7 0.35 0.3 2.7
FC4L64 2.0 4.4 0.7 0.5 5.4
FC4L110 3.2 5.6 1.6 1.1 8.7
L W t b c d
Rating (in.±.008/mm ±0.20) (in./mm) mm ±0.15 mm ±0.1 mm ±0.15
FC4L16 0.25 watt 0.063 / 1.60 0.031 / 0.8 0.010 / 0.26 0.30 ±.2 0.3 ±.2 1.0 ±.2
FC4L32 1 watt 0.126 / 3.20 0.063 / 1.6 0.014 / 0.35 0.35 0.2 2.6
FC4L64 2 watt 0.251 / 6.40 0.126 / 3.2 0.020 / 0.5 0.7 0.5 5.2
FC4L110 5 watt 0.433 / 11.0 0.197 / 5.0 0.028 / 0.7 1.4 1.1 8.5
FC4L Series
FC4L Four Terminal Current Sense
Metal Foil Construction
DIMENSIONS
Land Pattern
ORDERING INFORMATION
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Ohmite:
FC4L64R001JER FC4L64R002GER FC4L64R005FER FC4L64R010FER FC4L64R025FER FC4L64R050FER
FC4L110R050FER FC4L110R025FER FC4L110R010FER FC4L110R005FER FC4L110R002GER
FC4L110R001JER FC4L110R003FER FC4L32R010FER FC4L32R005FER FC4L32R002GER FC4L32R001JER
FC4L32R025FER FC4L32R003FER FC4L64R003FER FC4L32R050FER FC4L16R050FER FC4L16R020FER
FC4L16R010FER FC4L16R015FER FC4L64R015FER FC4L64R015DER FC4L64R030FER FC4L64R030DER
FC4L16R025FER FC4L110R010DER FC4L110R050DER FC4L110R020DER FC4L64R050DER FC4L110R015DER
FC4L110R025DER FC4L64R020DER FC4L64R010DER FC4L16R030FER FC4L110R030DER FC4L64R020FER