Ohmite FC4L Series Data Sheet

FC4L Series

FC4L Four Terminal Current Sense
Metal Foil Construction

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)

SERIES SPECIFICATIONS

Ohmite offers the low TCR FC4L series in 0.25 watts up to
5 watts and values down to 1 milli-ohm. Great stability is
achieved by employing a Ni-Cu-Mn resistive element. The
FC4L series affords the user an added advantage of a built in
4-terminal design with 2 larger electrodes for current man­agement 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

FC4L64 2W 1mΩ ±5% ±100 0.038

2mΩ ±2% ±100

3mΩ ±1% ±100
4m ~ 100mΩ ±1% ±50
10m ~ 50mΩ ±0.5% ±50

Power Resistance TCR Weight

Series Rating Range Tol. (ppm/°C) (g)

FC4L76 3W 1m-4mΩ ±1% ±100 0.062

5m-25mΩ ±0.5%, 1% ±50

FC4L90 4W 1m-4mΩ ±1% ±100 0.082

5m-25mΩ ±0.5%, 1% ±50

FC4L110 5W 1mΩ ±5% ±100 0.110

2mΩ ±2% ±50

3mΩ ~ 100mΩ ±1% ±50

10m ~ 50mΩ ±0.5% ±50

Test Condition Maximum ∆R

Max. temperature for rated power

Operating temperature range

Rated voltage

Overload (FC4L16 only)

In-rush current

Rapid change of temperature

Solderability

Endurance

Resistance to soldering heat

Moisture resistance

CHARACTERISTICS

70°C

-55°C ~ +155°C (FC4L16: -40°C ~ +125°C)

√(Rated power x Resistance value) V

Rated power x 1.5 for 5s ±(0.5%+0.0005Ω)

Rated current 10 msec ON, 60 sec OFF, 10 cycles.
(see table next page)

-55°C (30min.)/+155°C (30min.), 100 cycles
(FC4L16: 1000 cycles)

245°C ±5°C for 3 ±0.5 sec. Min. 90% coverage

70°C ±3°C, Rated voltage 1.5h ON, 0.5h OFF, 1000h
(FC4L76 & 90: 100°C)

260°C ±5°C for 10 ±1 sec.
(FC4L76 & 90: 20 ±1)

60°C ±2°C, 90~95% RH, Rated voltage 1.5h ON, 0.5h OFF, 1,000h
(76 & 90: 85 ±2°C, 85±5%RH, 10% Rated power, 1,000h)

±(1.0% +0.0005Ω)

±(1.0% +0.0005Ω)
(FC4L16: ±(2.0%+0.0005Ω))

(FC4L76 & 90: 95%)

±(1.0% +0.0005Ω)
(FC4L76 & 90: ±(3.0%+0.5mΩ))

±(1.0% +0.0005Ω)
(FC4L16: ±0.5%)
(FC4L76 & 90: No evidence of
mechanical damage)

±(2.0% +0.0005Ω)
(FC4L16: ±1.0%)
(FC4L76 & 90: ±(3% +0.0005Ω))

8

100

Percent Rated Power

Ambient

FC4L16

Others

Temperature, °C

60

20

0

80

40

050 100 125 15570-55

R010

3

4

1

W

L

a

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.

*Dependent on size and value

t

d

c
b

“V” term. “I” term.

a
b

e

c
d

FC4L Series

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

W

1

AH N

W

2

E

FC4L Four Terminal Current Sense
Metal Foil Construction

CHARACTERISTICS

Series Rating Range Power Current

FC4L16 0.25 watt 5m, 10mΩ 2.5W 5A
FC4L32 1 watt 1mΩ~9mΩ 25W 45A

FC4L64 2 watt 1mΩ~9mΩ 100W 85A

FC4L76 3 watt 1mΩ~9mΩ 110W 90A

FC4L90 4 watt 1mΩ~9mΩ 120W 95A

FC4L110 5 watt 1mΩ~50mΩ 100W 100A
In-rush current = √(in-rush power/resistance

value), or max. current, whichever is smaller

Power Resistance In-rush Max.

10mΩ~500mΩ 12.5W 24A

10mΩ~100mΩ 50W 35A

10mΩ~***mΩ 55W 40A

10mΩ~***mΩ 60W 45A

DeratingIn-rush current

DIMENSIONS

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

Land Pattern

Rating (in.±.008/mm ±0.20) (in./mm) mm ±0.15 mm ±0.1 mm ±0.15 mm

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 0.5 +.2/-.05

FC4L32 1 watt 0.126 / 3.20 0.063 / 1.6 0.014 / 0.35 0.35 0.2 2.6 0.5 +.2/-.05

FC4L64 2 watt 0.251 / 6.40 0.126 / 3.2 0.020 / 0.5 0.7 0.5 5.2 0.5 +.2/-.05

FC4L76 3 watt 0.30 / 7.60 0.15 / 3.8 0.02 / 0.55 0.75 0.60 6.15 0.60 ±.20

FC4L90 4 watt 0.35 / 9.00 0.18 / 4.5 0.03 / 0.65 0.90 0.75 7.25 0.60 ±.20

FC4L110 5 watt 0.433 / 11.0 0.197 / 5.0 0.028 / 0.7 1.4 1.1 8.5 0.5 +.2/-.05

L W a b c d t

±0.3mm ±0.3mm ±0.2mm ±0.2mm ±0.2mm ±0.3mm

±0.3mm ±0.3mm ±0.2mm ±0.2mm ±0.2mm ±0.3mm

PACKAGING SPECIFICATIONS

Reel

FC4L16 FC4L32 & 64 FC4L76 & 90 FC4L110

A 7.087 (180 +0/-3) 7.087 (180 +0/-3) 7.087 (180 +1.0/-3.0) 7.087 (180 ±2.0)

H 0.512 (13 ±0.2) 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) 0.079 (2.0 ±0.5)

N 2.362 (60 +1/-0) 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) 0.827 (21 ±0.8) 1.000 (25.4 ±1.0)

W2 0.512 (13.0 ±0.3) 0.669 (17.0 ±1.4) 0.669 (17.0 ±.3) 1.157 (29.4 ±1.0)

(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

FC4L76 2.4 4.80 0.95 0.45 6.60

FC4L90 2.8 5.60 1.10 0.55 7.80

FC4L110 3.2 5.6 1.6 1.1 8.7

(continued)

9

FC4L Series

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

A

B

P

0

P

2

D

0

E

F

W

D

1

P

1

T

T

2

Direction

of feed

A

B

P

0

P

2

D

0

E

F

W

D

1

P

1

T

T

2

Direction

of feed

FC4L Four Terminal Current Sense
Metal Foil Construction

PACKAGING SPECIFICATIONS

(continued)

Tape

inches (mm)

FC4L16 FC4L32 FC4L64 FC4L76 FC4L90 FC4L110

A 0.037 (0.95±0.05) 0.075 (1.90 ±0.1) 0.135 (3.43 ±0.2) 0.163 (4.15 ±0.20) 0.191 (4.85 ±0.20) 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) 0.313 (7.95 ±0.20) 0.368 (9.35 ±0.20) 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) 0.630 (16.00 ±0.30) 0.630 (16.00 ±0.30) 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) 0.295 (7.50 ±0.10) 0.295 (7.50 ±0.10) 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) 0.069 (1.75 ±0.10) 0.069 (1.75 ±0.10) 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) 0.157 (4.00 ±0.10) 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) 0.315 (8.00 ±0.10) 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) 0.079 (2.00 ±0.10) 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) 0.059 (1.50 ±0.10) 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 ±0.10) 0.012 (0.30 ±0.10) 0.012 (0.30 ±0.05)

T2 0.022 (0.55±0.05) 0.039 (1.00 ±0.2) 0.059 (1.5) max. 0.063 (1.60) max. 0.063 (1.60) max. 0.047 (1.2 ±0.15)

Standard Part Numbers for FC4L series

0.25 watt 1 watt 2 watt 3 watt 4 watt 5 watt

FC4L16R005FER FC4L32R005FER FC4L64R005FER FC4L76R005FER FC4L90R005FER FC4L110R005FER

FC4L16R010FER FC4L32R010FER FC4L64R010FER FC4L76R010FER FC4L90R010FER FC4L110R010FER

FC4L16R015FER FC4L32R015FER FC4L64R015FER FC4L76R015FER FC4L90R015FER FC4L110R015FER

FC4L16R020FER FC4L32R020FER FC4L64R020FER FC4L76R020FER FC4L90R020FER FC4L110R020FER

FC4L16R025FER FC4L32R025FER FC4L64R025FER FC4L76R025FER FC4L90R025FER FC4L110R025FER

FC4L16R030FER FC4L32R030FER FC4L64R030FER FC4L110R030FER

FC4L16R050FER FC4L32R050FER FC4L64R050FER FC4L110R050FER
FC4L16R100FER FC4L32R100FER FC4L64R100FER FC4L110R100FER

rev 8/19-1

10

ORDERING INFORMATION

FC4L32R001JER FC4L64R001JER FC4L110R001JER

FC4L32R002GER FC4L64R002GER FC4L110R002GER
FC4L32R003FER FC4L64R003FER FC4L76R003FER FC4L90R003FER FC4L110R003FER

FC4L64R010DER FC4L110R010DER

FC4L64R015DER FC4L110R015DER

FC4L64R020DER FC4L110R020DER

FC4L64R025DER FC4L110R025DER

FC4L64R030DER FC4L110R030DER

FC4L64R050DER FC4L110R050DER

FC4L76R001GER FC4L90R001GER

FC4L76R002FER FC4L90R002FER