2

Technical Data ELX1177

Effective June 2022

MFFA

4-terminal SMD current sensing resistor-metal strip

www.eaton.com/electronics

Mechanical parameters- Inches [mm]

Recommended pad layout

Packaging information- mm

Supplied in tape and reel on a 7.0” diameter reel (EIA-481 compliant)

Reel dimensions

Family

Size code

L

W

H

T

A

B

MFFA0612

0612

[1630]

0.065 ± 0.008

[1.65 ± 0.20]

0.120 ± 0.010

[3.05 ± 0.25]

0.026 ± 0.008

[0.65 ± 0.20]

0.016 ± 0.010

[0.40 ± 0.25]

0.020 ± 0.005

[0.51 ± 0.13]

0.020 ± 0.005

[0.51 ± 0.13]

Dimension

millimeter

E1

1.75 ± 0.1

F

3.5 ± 0.05

P2

2.0 ± 0.1

D0

1.50 ± 0.1

P0

4.0 ± 0.1

W

8.0 ± 0.1

P1

4.0 ± 0.1

A0

1.77 ± 0.1

B0

3.4 ± 0.1

K0

1.04 ± 0.1

T

0.22 ± 0.05

Dimension

millimeter

A

178 ± 2.0

B

3.5 ± 0.5

C

13 ± 1.0

D

na

N

60 ± 1.0

W1

9 ± 1.0

W2

11.5 ± 1.0

W3

na

Size

Tape

Quantity

0612

7 inch embossed

4K

Construction

Family

Resistance (mΩ)

A

B

C

L

F

MFFA0612

0.5 ≤ R ≤ 5

2.3

1.0

0.8

0.7

0.4

1. The copper foil minimum thickness of PCB is 3 oz.

2. PCB Dimension tolerance is +/-0.1 mm.

3. The resistance will change slightly after soldered; it is depending on PCB pad size deign and it’s

necessary to consider the effect of the resistance increase or decrease.

Tape carrier and dimensions