Metal Foil on Ceramic

Chip Resistors

MFC Series

Small size down to 0402

Tolerance to ±0.5%

TCR to ±50ppm/°C

High power density

AEC-Q200 qualified (excluding 0.5% tolerance)

Resistors

10.20

General Note

TT Electronics reserves the right to make changes in product specification without notice or liability.

All information is subject to TT Electronics’ own data and is considered accurate at time of going to print.

© TT Electronics plc

www.ttelectronics.com/resistors

BI Technologies IRC Welwyn

All parts are Pb-free and comply with EU Directive 2011/65/EU amended by (EU) 2015/863 (RoHS3)

0402

0603

0805

1206

2010

2512

Power rating @ 70°C

W

0.25

0.5

0.25

0.75

0.5

1

0.75

1

1

2

Overload rating 5s

W

2.25

2.5

2.25

3.75

2.5

5

3.75

5

5

8

Resistance range

mΩ 10- 50

3- 100

30- 100 3- 100 30- 100

3- 100

30- 100

3- 100

30- 100 101- 200 2- 100

AEC-Q200 qualified

Tolerance

±%

1, 2, 5

0.5

1, 2, 5

0.5

1, 2, 5

0.5

1, 2, 5

0.5

1, 2, 5

TCR (-55°C to +125°C)

±ppm/°C

100

<R01: 200,

≥R01: 100

<R01: 100, ≥R01: 50

R002: 200, R003 – R009: 100,

≥R01: 50

Standard values

E24 plus integer milliohm values below R01 preferred

Operating temperature

°C

-55 to +155

Dimensions (mm) and weight (mg)

Size

Value

(mΩ)

L

W

C

A

T max

Wt

0402

All

1.05±0.1

0.55±0.1

-

0.27±0.1

0.55

0.9

0603

≤4

1.6±0.2

0.85±0.25 0.35±0.25

0.6±0.2

0.85

2.9

>4

0.35±0.2

0805

≤4

2±0.25

1.3±0.2

0.38±0.28

0.7±0.3

0.85

7- 10

>4

0.4±0.3

1206

≤4

3.15±0.25

1.6±0.2

0.5±0.3

0.9±0.3

0.9

13- 15

>4

0.53±0.33

2010

<4

5±0.2

2.5±0.2

0.6±0.3

1.6±0.3

0.73

33

4 – 5

1.3±0.3

>5

0.85±0.35

2512

2

6.35±0.25

3.2±0.2

0.75±0.45

2.3±0.3

0.95

54

3 – 4

1.8±0.4

5 – 7

1.15±0.35

>7

1.05±0.45

Electrical Data

Physical Data

Construction

Marking

Solvent Resistance

Metal foil resistor material is bonded onto an alumina substrate and connected to wraparound terminations with nickel barrier and 100% Sn finish. Protec-

tion and marking are applied and each resistor is measured immediately before packing into tape.

MFC0402 parts are not marked. Larger MFC sizes are marked with 2, 3 or 4 characters indicating ohmic value. Where “R” is used it indicates the decimal

point location for the value in ohms, e.g. “R047” = 47mΩ, “R01” = 10mΩ. Where “R” is omitted, the value is in milliohms e.g. “047” = 47mΩ, “03” = 3mΩ.

Reels are marked with type, value, tolerance, date code and quantity.

The body protection and marking are resistant to all normal industrial cleaning solvents suitable for printed circuits.

Precision Surface Mount Resistors

03.11

© Welwyn Components Limited Bedlington Northumberland NE22 7AA, UK

Telephone: +44 (0) 1670 822181 Facsimile: +44 (0) 1670 829465 Email: info@welwyn-tt.com Website: www.welwyn-tt.com

PCF Series

>0.05% tolerance

0603 to 2512

0.25%

0.3%

0.5%

0.25%

0.1%

0.2%

Load life

Humidity

Short term overload

High temperature operation

Temperature cycle

Resistance to solder heat

Solderability

Maximum change (+0.05R)

Chip size

0201, 0402

0.5%

0.3%

0.5%

0.25%

0.1%

0.2%

≤0.05% tolerance

0603 to 2512

0.05%

0.05%

0.05%

0.25%

0.05%

0.05%

Conditions

Test Parameters

1000 hours rated load @ 70°C

1000 hours @ 40°C, 90 - 95%RH

6.25 x rated Power , or 2 x LEV, for 5 sec

1000 hours at 125°C

5 cycles -55 C, 125°C

270°C, 10 sec

235°C, 2 sec

95% minimum coverage

0.5%

0.5%

0.5%

0.5%

0.25%

0.2%

95% minimum coverage

Load life

Humidity

Short term overload

High temperature operation

Temperature cycle

Resistance to solder heat

Solderability

Maximum change (+0.05R)

Conditions

Test Parameters

1000 hours rated load @ 70°C

1000hrs @ 40°C, 90 - 95%RH

6.25 x rated Power, or 2 x LEV, for 5 sec

1000 hours at 155°C

5 cycles -55°C, 150°C

270°C, 10 sec

235°C, 2 sec

0603 to 2512

0.05%

0.05%

0.02%

0.05%

0.02%

0.02%

Load life

Humidity

Short term overload

High temperature operation

Temperature cycle

Resistance to solder heat

Solderability

Maximum change (+0.05R)

Conditions

Test Parameters

1000 hours rated load @ 70°C

1000hrs @ 40°C, 90 - 95%RH

6.25 x rated Power, or 2 x LEV, for 5 sec

1000 hours at 125°C

5 cycles -55 C, 125°C

270°C, 10 sec

235°C, 2 sec

95% minimum coverage

0402

0.25%

0.5%

0.1%

0.5%

0.1%

0.1%

Performance Data - Standard Range

Performance Data - High Power Range

Performance Data - Passivated Range

Construction

A thin-film material is selectively deposited on a 96% alumina substrate together with metallic contacts at each end of the resistor.

The unadjusted resistors are heat treated to give the required TCR and stability, then a precisely controlled laser trim process adjusts

the resistance value. Epoxy protection is applied and wrap-around terminations are added and plated with Nickel then Tin. Each

resistor is measured immediately before packing into tape.

Terminations

The standard termination is 100% Sn matte plated wrap-around suitable for soldering. SnPb plated option is available for standard

range PCF over the restricted range below.

Physical Data

Dimensions (mm) and Weight (mg)

L

W

T max

A

C

Wt

0201

0.58 0.05

0.29 0.05

0.26

0.15 0.05

0.12 0.05

0.14

0402

1.0 0.1

0.5 0.05

0.55

0.25 0.15

0.2 0.15

0.54

0603

1.6 0.2

0.8 0.2

0.65

0.35 0.25

0.3 0.2

1.8

0805

2.0 0.2

1.25 0.2

0.65

0.4 0.25

0.3 0.2

4.7

1206

3.05 0.15

1.55 0.15

0.65

0.35 0.25

0.42 0.2

9.0

1210

3.10 0.15

2.5 0.25

0.65

0.55 0.25

0.4 0.3

10

2010

4.9 0.2

2.4 0.25

0.65

0.55 0.3

0.6 0.3

24

2512

6.3 0.2

3.1 0.25

0.65

0.7 0.45

0.6 0.3

38

T

W

A

A

L

Wrap-around terminations

(3 faces)

C