Product Line

Metal Series Resistors

Product Name : METAL FILM RESISTORS

Description


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.

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: