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PDFs and Datasheets FC4T Series Datasheet

FC4T Series Datasheet

Metal Foil Low Value Chip 

Fc4t product image

 

The FC4T chip features four terminals, also known as a “Kelvin” configuration. This configuration enables current to be applied through two opposite terminals and a sensing voltage to be measured across the other two terminals, eliminating the resistance and temperature coefficient of the terminals for a more accurate current measurement. Ohmite’s proprietary Metal Foil technology offers an excellent Temperature Coefficient of Resistance (TCR) even for very low resistance values ( down to 50ppm).



Specifications

Pkg. Size:

1206

Power Rating (W @70°C):

0.5W

Resistance Range (Ω):

0.005-0.100

TCR (ppm/°C):

50ppm

Tolerance:

0.5%, 1%

Characteristics

0.005-0.100

-55°C to +155°C

0.5 watt

0.5% and 1% standard

within ±50ppm, ±100ppm for 5mΩ

Epoxy resin

Cu/Ni/Sn

√(Max. power÷ Resistance value)

<5mΩ

 

Derating

Fc4t graph

 

Construction

Fc4t Construction

 

Peeling Strength of Seal Tape

F = Peel-back force: 0.1 - 0.7N (10 - 71gf) 

FC4T graph2

Performance Characteristics

±(1.0%+0.5mΩ)

Test Method:

P= 2.5Pr; T=25 ±2ºC, t=5sec.; IEC60115-1 4.13

±(1.0%+0.5mΩ)

Test Method:

T=+170 ±2ºC; t=1000h; IEC60115-1 4.25

±(1.0%+0.5mΩ)

Test Method:

T=-55 ±2ºC; t=1000h; IEC60115-1 4.25

±(2.0%+0.5mΩ)

Test Method:

Vtest=Vmax; T=60 ±2ºC; RH=95%; t= 90min ON, 30min OFF, 1000h; IEC60115-1 4.25 (60°C, 95%RH)

±(1.0%+0.5mΩ)

Test Method:

-55ºC 30min. / R.T. 3min. / +150ºC 30min. / R.T. 3min ], 100cycles; IEC60115-1 4.19

±(2%+0.5mΩ)

Test Method:

Vtest=Vmax; T=70 ±2ºC; t=90min ON; IEC60115-1 4.25

The covered area >95%

Test Method:

Dip into solder at T=245 ±5ºC, t=3 ±0.5sec.; IEC60115-1 4.17

±(1.0%+0.5mΩ)

Test Method:

Through Reflow T=275 ±5ºC, t=20 ±1sec.; IEC60115-1 4.18

±(1.0%+0.5mΩ)

Test Method:

a=100G, t=11ms, 5 times shock; IEC60115-1 4.21

±(1.0%+0.5mΩ)

Test Method:

Span between fulcrums 90mm; bend width 2mm; test board glass-epoxy;Thickness=1.6mm; IEC60115-1 4.33

Dimensions

 (mm ±0.2)

Fc4t dimensions

L: 3.2

W: 1.6

a: 0.6

b: 0.55

c: 0.3

t: 0.6

d: 1.10

e: 0.30

f: 1.2

g: 1.8

Schematic

Fc4t Schematic

V = sensing terminal (voltage)

I = current terminal 

Layout for illustration only, 

part can be rotated 180° without effect to the circuit

 

Tape and Reel

Fc4t Tape and Reel

W: 8.00 ±0.30

P: 4.00 ±0.10

P2: 2.00 ±0.10

A: 2.05 ±0.20

B: 3.65 ±0.20

D0: 1.50 ±0.10

F: 3.50 ±0.10

E: 1.75 ±0.10

T: 0.20 ±0.10

T1: Max. 0.1

K: 0.85 ±0.20

Ordering Information

Fc4t Ordering Info

 

Standard Part Numbers

1%

FC4TR005FER
FC4TR010FER
FC4TR015FER
FC4TR050FER
FC4TR100FER

0.5%

FC4TR010DER
FC4TR015DER
FC4TR050DER
FC4TR100DER

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