INTRODUCTION:

MF series is a group of metal film-fixed resistors applying high Aluminum content base material vacuum sputtered by Ni-Cr alloy and excellent heat-and wet-proof special resin for protective coating . Those resistors are manufactured through integrated automatic production system and then have good stable and uniform property. Furthermore, they show excellent performance regardless open in air.

　

　

MF系列是一組鋁材經鎳鎘合金真空噴灑及
特殊樹脂表被防火,防潮的金屬膜固定電阻.這些電阻由整體自動化系統製造,所以有穩定及均勻品質. 而且,即使暴露在空氣中仍有極佳的品質.

　

　

DIMENSIONS:

     

GENERAL SPECIFICATIONS:

MIL STYLE

STYLE

POWER RATING(W)

DIMENSION (mm)

MAX WORKING VOLTAGE

MAX OVERLODAD

L

D

H( MIN)

d

RN-50

MF-12

0.125W

3.7±0.4

1.8±0.2

27

0.46±0.02

200

400

RN-50

MF-16

0.125W

3.7±0.4

1.8±0.2

27

0.46±0.02

200

400

RN-55

MF-25

0.25W

6.8±0.5

2.5±0.2

27

0.53±0.03

250

500

RN-60

MF-50

0.5W

9.0±1.0

3.5±0.5

25

0.68±0.02

350

700

RN-65

MF-100

1W

12±1.0

4.5±0.5

33

0.80±0.03

500

1000

RN-70

MF-200

2W

16±1.0

5.5±0.5

33

0.80±0.03

500

1000

RN-75

MF-300

3W

17±1.0

6.0±0.5

30

0.80±0.03

600

1000

　

RESISTANCE RANGE:

MIL STYLE

STYLE

TOLERANCE

T C ±25PPM/℃

T C ±100PPM/℃

T C ±50PPM/℃

RN-50

MF-12

MF-16

±1%

±0.5%

±0.25%

±0.1%

10Ω~1MΩ

100Ω~1MΩ

51.1Ω~470KΩ

51.1Ω~470KΩ

1Ω~10MΩ

51.1Ω~470KΩ

　

　

RN-55

MF-25

±1%

±0.5%

±0.25%

±0.1%

0.1Ω~10MΩ

0.1Ω~10MΩ

10Ω~470kΩ

10Ω~470KΩ

0.1Ω~10MΩ

0.1Ω~10MΩ

　

　

RN-60

MF-50

±1%

±0.5%

±0.25%

±0.1%

0.1Ω~10MΩ

0.1Ω~10MΩ

10Ω~470kΩ

10Ω~470KΩ

0.1Ω~10MΩ

0.1Ω~10MΩ

　

　

RN-65

MF-100

±1%

±0.5%

±0.25%

±0.1%

0.1Ω~10MΩ

0.1Ω~10MΩ

10Ω~470kΩ

10Ω~470KΩ

0.1Ω~10MΩ

0.1Ω~10MΩ

　

　

RN-70

MF-200

±1%

±0.5%

±0.25%

±0.1%

0.1Ω~10MΩ

0.1Ω~10MΩ

10Ω~470kΩ

10Ω~470KΩ

0.1Ω~10MΩ

0.1Ω~10MΩ

　

　

RN-75

MF-300

±1%

±0.5%

±0.25%

±0.1%

0.1Ω~10MΩ

0.1Ω~10MΩ

10Ω~470kΩ

10Ω~470KΩ

0.1Ω~10MΩ

0.1Ω~10MΩ

　

　

　

　

Characteristic

Specification

Test Method

　

　

(All resistance measurements should be performed after stabilisation or conditioning periods).

DC RESISTANCE

Within specified tolerance.

MIL-STD-202

Method 303

TEMPERATURE COEFPICIENT

As buyer requested

±25PPM/℃ , ±100PPM/℃ , ±50PPM/℃

MIL-STD-202

Method 304

DIELECTRIC STRENGTH

No flashover or damage

MIL-STD-202

Method 301

1/8W 300V1 minute

1/4W 500V1 minute

1/2W 700V1 minute

1.2W 750V1 minute

INSULATION RESISTANCE

at least 1,000MΩ

MIL-STD-202

Method 302

1000V1 minute

CURRENT NOISE TEST

below 10kΩ below 0.05µV/V

10KΩ~below 0.1µV/V

below 1M7 below 0.2µV/V

MIL-STD-202

Method 308

　

VIBRATION

Δ R within ± (0.25%+0.05Ω)

MIL-STD-202

Method 201 10~HZ

X. Y. Z. 3directions

2 hours each

TORMINAL STRENGTH

Lead is not break or loose

MIL-STD-202

Method 211

RESISTANCE TO SOLDERING HEAT

Δ R with in ± (0.25%+0.05Ω)

MIL-STD-202

Method 210

350℃ , 3±0.05 sec

SOLDERABILITY

At least 95% coverage

MIL-STD-202

Method 208

230℃,5 sec

THERMAL SHOCK

Δ R within ± (0.5%+0.05Ω)

MIL-STD-202

Method 107

-55℃ , +155℃

5cycles

SHORT TIME OVERLOAD

Δ R within ± (0.5%+0.05Ω)

MIL-R-10509 Para,4,6,6,

2.5times rated

working voltage ,

5 seconds

HUMIDITY

Δ R within ± (1%+0.05Ω)

NO mechanical  damage

MIL-STD-202

Method 103

40℃, RH95%

500

LOW TEMPERATURE OPERATION

Δ R within ± (0.5%+0.05Ω)

MIL-R-10509

Para 4,6,5

rated working

voltage,at-65℃

45minutes.

LOAD LIFE

Δ R within ± (1%+0.05Ω)

MIL-STD-202

method 108

Rated working

voltage 1.5 hours on.0.5 hours

off for total 1000 hours

RESISTANCE TO SOVENT

Color bands legible

No mechanical damage

MIL-STD-202

method 215

　

DERATING CURVE: