Rev Date: 8/10/2022

2

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MLF / MLFM Series

Metal Film Melf Resistor

Stackpole Electronics, Inc.

Resistive Product Solutions

Mechanical Specifications

Performance Characteristics

0.087 ± 0.004

0.043 ± 0.004

0.043

0.018 ± 0.002

inches

2.20 ± 0.10

1.10 ± 0.10

1.10

0.45 ± 0.05

mm

0.087 ± 0.004

0.043 ± 0.004

0.043

0.018 ± 0.002

inches

2.20 ± 0.10

1.10 ± 0.10

1.10

0.45 ± 0.05

mm

0.138 ± 0.008

0.055 ± 0.006

0.055

0.031 ± 0.004

inches

3.50 ± 0.20

1.40 ± 0.15

1.40

0.80 ± 0.10

mm

0.138 ± 0.008

0.055 ± 0.006

0.055

0.031 ± 0.004

inches

3.50 ± 0.20

1.40 ± 0.15

1.40

0.80 ± 0.10

mm

0.232 ± 0.008

0.087 ± 0.008

0.087

0.051 ± 0.004

inches

5.90 ± 0.20

2.20 ± 0.20

2.20

1.30 ± 0.10

mm

0.232 ± 0.008

0.087 ± 0.008

0.087

0.051 ± 0.004

inches

5.90 ± 0.20

2.20 ± 0.20

2.20

1.30 ± 0.10

mm

D1

Middle Body Dia.

+0/-0.006

0.043

L1 (min.)

Inner Body Length

MLFM1

80.9

0.059

1.50

0.114

2.90

0.114

2.90

MLF14

18.7

0.067

1.70

Termination

MLFM25

18.7

+0/-0.15

+0/-0.006

+0/-0.15

+0/-0.008

+0/-0.20

1.10

0.043

1.10

+0/-0.008

+0/-0.20

+0/-0.008

+0/-0.20

+0/-0.008

+0/-0.20

Unit

MLF18

MLF12

Type/Code

L

Body Length

D

Body Diameter

K

MLFM15

Weight (g)

(1000 pieces)

7.7

7.7

80.9

5% and below

Jumper

JIS-C-5201-1 4.8

IEC-60115-1 4.8

0204/0207: ± (0.15% + 0.05Ω)

0102: ± (0.15% + 0.01Ω)

5ppm: ± (0.05% + 0.01Ω)

JIS-C-5201-1 4.6

IEC-60115-1 4.6

0204/0207: ± (0.15% + 0.05Ω)

0102: ± (0.5% + 0.05Ω)

5ppm: ± (0.25% + 0.01Ω)

0204/0207: ± (1% + 0.05Ω)

0102: ± (1% + 0.05Ω)

5ppm: ± (0.25% + 0.01Ω)

JIS-C-5201-1 4.33

± (0.5% + 0.05Ω)

IEC-60115-1 4.33

5ppm: ± (0.1% + 0.01Ω)

JIS-C-5201-1 4.17

IEC-60115-1 4.17

± (0.5% + 0.05Ω)

5ppm: ± (0.05% + 0.01Ω)

JIS-C-5201-1 4.7

IEC-60115-1 4.7

JIS-C-5201-1 4.18

IEC-60068-2-58 8.2.1

JIS-C-5201-1 4.19

± (0.5% + 0.05Ω)

IEC-60115-1 4.19

5ppm: ± (0.2% + 0.01Ω)

RCWV (rated continuous working voltage) =

√(P*R) or max. operating voltage whichever is lower.

Storage temperature: 25°C ± 3ºC, humidity < 80% R.H.

Operating temperature range is -55°C to +155°C except for 5 ppm/ºC.

Operating temperature range for 5 ppm/ºC is -55°C to +125°C.

Test

No breakdown or flashover

Rapid Change of

Temperature

-55°C to +125°C / +155°C, 5 cycles

< 15mΩ

< 15mΩ

< 15mΩ

95% min. coverage

JIS-C-5201-1 4.18

IEC-60115-1 4.18

< 15mΩ

≥10G

JIS-C-5201-1 4.25

IEC-60115-1 4.25.1

< 15mΩ

JIS-C-5201-1 4.24

IEC-60115-1 4.24

< 15mΩ

Test Method

Test Condition

Test Specification

As specified

RCWV*2.5 or max. overload voltage whichever is

lower for 5 seconds

< 15mΩ

0204/0207: ± (1% + 0.05Ω)

5ppm: ± (0.25% + 0.01Ω)

Temperature Coefficient

of Resistance (T.C.R.)

At 25°C/-55°C and 25°C/+125°C, 25°C is the

reference temperature.

5ppm: At 25°C/-10°C and 25ºC/+85°C,

25°C is the reference temperature

At +125°C / +155°C for 1000 hours

260 ± 5ºC for 10 seconds

Resistance to Soldering

Heat

JIS-C-5201-1 4.23

IEC-60115-1 4.23.2

Short Time Overload

JIS-C-5201-1 4.13

IEC-60115-1 4.13

1.42 times max. operating voltage for 1 minute

260 ± 5ºC for 30 seconds

40 ± 2ºC, 90 ~ 95% R.H., RCWV for 1000 hours

with 1.5 hour "ON" and 0.5 hour "OFF"

Bending once for 5 seconds with 2 mm

245 ± 5ºC for 3 seconds

Max. overload voltage for 1 minute

70 ± 2ºC, RCWV for 1000 hours

with 1.5 hour "ON" and 0.5 hour "OFF"

Voltage Proof

Leaching

Insulation Resistance

Solderability

Damp Heat with Load

Endurance

Bending Strength

Dry Heat

Individual leacing area

≤ 5%

Total Leaching area

≤ 10%