METAL FILM RESISTORS

Precision Metal Film Resistors

MF

Tokenchina offers a range of resistive products tailored to precision applications. MF Series of precision metal film resistors offers tight tolerances, low-cost, and low TCRs over a wide resistance range and are suitable for applications where long-term stability is dominant. Applications include precision balances, test and measurement equipment, process control and medical systems.


Tokenchina precision resistive products meet RoHS compliant and extend a complete line for both military and commercial applications.


precision resistors

Features

  • Replace carbon composition components in some applications
  • Products with Pb-free Terminations Meet RoHS Requirments
  • Low-cost and low TCR
  • Tight tolerances

Applications

  • Precision Balances
  • Test and Measurement Equipment
  • Process Control and Medical System

Dimension (Unit: mm) - Precision Metal Film MF

precision resistors
STYLE MIL
STYLE
POWER
RATING(W)
DIMENSION (mm) MAX WORKING
VOLTAGE
MAX OVERLOAD
VOLTAGE
RN RNS L D H d ± 0.05 RN RNS RN RNS
MF - 12 RN-50 1/8W 1/4W 3.2± 0.2 1.5 ± 0.2 26 ± 1.0 0.40~0.45 200 150 400 300
MF - 25 RN-55 1/4W 1/2W 6.0 ± 0.3 2.3 ± 0.3 26 ± 1.0 0.40~0.50 250 200 500 400
MF - 50 RN-60 1/2W 1W 9.0 ± 0.5 3.0 ± 0.5 26 ± 1.0 0.50~0.55 350 250 700 500
MF - 100 RN-65 1W 2W 11 ± 1.0 4.0 ± 0.5 35 ± 3.0 0.75~0.80 500 300 1000 600
MF - 200 RN-70 2W 3W 15 ± 1.0 5.0 ± 0.5 35 ± 3.0 0.75~0.80 500 350 1000 700

Resistance Range - Precision Metal Film MF

STYLE MIL STYLE TOLERANCE TC+15-25PPM TC+50PPM TC+100PPM REMARK
MF-12 RN-50 ±1%
±0.5%
±0.25%
100Ω-100KΩ
100Ω-100KΩ
100Ω-100KΩ
10Ω-1MΩ 10Ω-1MΩ *Standard resistance
is 10Ω-1MΩ,
below or over
this resistance
on request.
MF-25 RN-55 ±1%
±0.5%
±0.25%
±0.1%
51.1Ω-511KΩ
51.1Ω-511KΩ
100Ω-300KΩ
100Ω-300KΩ
10Ω-1MΩ 10Ω-1MΩ
MF-50 RN-60 ±1%
±0.5%
±0.25%
±0.1%
51.1Ω-1KΩ
51.1Ω-1KΩ
100Ω-551KΩ
100Ω-330KΩ
10Ω-1MΩ 10Ω-1MΩ
MF-100 RN-65 ±1%
±0.5%
±0.25%
±0.1%
51.1Ω-1KΩ
51.1Ω-1KΩ
100Ω-551KΩ
100Ω-330KΩ
10Ω-1MΩ 10Ω-1MΩ
MF-200 RN-70 ±1%
±0.5%
±0.25%
±0.1%
51.1Ω-1KΩ
51.1Ω-1KΩ
100Ω-551KΩ
100Ω-330KΩ
10Ω-1MΩ 10Ω-1MΩ

Electrical Characteristics - Precision Metal Film MF

REQUIREMENTS CHARACTERISTICS JIS C 5202 MIL-R-10509F
Storage ±(0.2%+0.05Ω) Shelved one year in a room of normal temperature and humidity
Load Life ±(1%+0.05Ω) 7.10   1,000hr 4.6.13
Terminal Strength ±(0.5%+0.05Ω) 6.1 4.6.7
Effect of Soldering ±(0.5%+0.05Ω) 6.4 350°C 3 sec 4.6.10
Short Time Overload ±(0.5%%+0.05Ω) 5.5 A 4.6.6
Temperature Cycling ±(0.5%+0.05Ω) 7.4 4.6.4
Low Temp Operation ±(0.5%+0.05Ω)   4.6.5
Moisture Resistance ±(1%+0.05Ω) 7.9   1,000hr MIL R-22684 4.6.10
Temp Coefficient (°C ) ±25 ±50 ±100 5.2 4.6.12
Operating Temp.Range -55°C ~ 155°C    
Dielectric Withstanding V ±(0.5%+0.05Ω) 5.7 A 4.6.8

How to Order - Precision Metal Film MF

MF-25 1/4W 100R J TB/P
Product Type
Rated Power
Resistance Value (Ω)
Resistance Tolerance
Packaging

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MF Series - Precision Metal Film Resistors