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MO Series Flame-Proof Type Metal Oxide Film Resistors
METAL OXIDE FILM RESISTORS MO Series (Flame-Proof Type)
1/4W, 1/2W, 1W, 2W, 3W, 5W
MO-25, MO-50, MO-100, MO-200, MO-300, MO-500
INTRODUCTION
These Metal Oxide Resistors offer excellent performance in applications where stability and uniformity of characteristics are desired. They provide lower cost alternatives to Charbon Composition Resistors and General Purpose Metal Films. Metal Oxide also can replace many low power General Purpose Wirewound applications, saving both money and time, with shorter delivery cycles.
FEATURES
  • High power-to-size ratio for significant space savings.
  • Excellent long-term stability.
  • Complete flameproof construction.
  • High surge/overload capability.
  • Wide resistance range : 1 £[ ~ 1M£[
  • Standard tolerance : ¡Ó5% , ¡Ó2%
DIMENSIONS:
STYLE DIMENSION (mm) POWER RATING
(Watt) 		VALUE
RANGE
L £rD H £rd
MO-25 6.0 ¡Ó0.2 2.3 ¡Ó0.3 28 ¡Ó2 0.5 ¡Ó0.02 1/4W 1£[~1M£[
MO-50 9.5 ¡Ó0.5 3.2 ¡Ó0.5 26 ¡Ó2 0.6 ¡Ó0.02 1/2W 1£[~1M£[
MO-100 11.0 ¡Ó0.5 4.5 ¡Ó0.5 35 ¡Ó2 0.7 ¡Ó0.02 1W 1£[~1M£[
MO-200 15 ¡Ó0.5 5.0 ¡Ó0.5 32 ¡Ó2 0.8 ¡Ó0.02 2W 1£[~1M£[
MO-300 17 ¡Ó0.5 6.0 ¡Ó0.5 32 ¡Ó2 0.8 ¡Ó0.02 3W 1£[~1M£[
MO-500 25 ¡Ó1.0 8.0 ¡Ó0.5 35 ¡Ó3 0.8 ¡Ó0.02 5W 1£[~1M£[

ELECTRICAL CHARACTERISTICS

Style MO-25 MO-50 MO-100 MO-200 MF-300 MO-500
Power Rating 70 o C 1/4W 1/2W 1W 2W 3W 5W
Operating Temp. Range -55 o C ~ +155 o C
Max. Working Voltage 250V 350V 350V 350V 500V 500V
Max. Overload Voltage 400V 700V 700V 700V 1000V 1000V
Dielectric Withstanding Voltage (AC) 300V 350V 350V 500V 1000V 1000V
Max. Intermittence Overload Voltage 400V 700V 1000V 1000V 1000V 1000V
Value Range ¡Ó1%, ¡Ó2%, ¡Ó5% 1 £[ ~510K £[
Temp. Coefficient (by Type) ¡Ó300ppm/ o C
* The listed resistance range for standard resistance, below or over this resistance is on request.

ENVIRONMENTAL CHARACTERISTICS

PERFORMANCE TEST TEST METHOD APPRAISE
Short Time Overload JIS-C-5202 5.5 : 2.5 times RCWV for 5 seconds ¡Ó(1%+0.05 £[)
Dielectric Withstanding V. JIS-C-5202 5.7 : in V-Block for 60 seconds By Type
Temperature Coefficient JIS-C-5202 5.2 : -55 o C ~+155 o C MAX. 300ppm/ o C
Insulation Resistance JIS-C-5202 5.6 : in V-Block ¡Ó 1000 M £[
Solderability JIS-C-5202 6.5 : 230 o C for 5 ¡Ó0.5 seconds 95% min. coverage
Resistance to Solvent JIS-C-5202 6.9 : Trichroethance for 1 min. with ultrasonic no deterioration
Terminal Strength Direct load for 10 sec. In the direction of the terminal leads ¡Ó2.5KG/24.5N
Pulse Overload JIS-C-5202 5.8 : 4 time RCWV 10000 cycles(1 sec.on, 25 sec.off) ¡Ó(2%+0.05 £[)
Load Life in Humidity JIS-C-5202 7.9 : 40 ¡Ó2 o C, 90~95% RH at RCWV for 1000 hrs
(1.5hrs. on, 0.5 hrs. off) 		¡Ó(5%+0.05 £[)
Load Life JIS-C-5202 7.10 : 70 o C at RCWV for 1000hrs (1.5hrs.on, 0.5hrs.off) ¡Ó(5%+0.05 £[)
Temperature Cycling JIS-C-5202 7.4 : -55 o C~room temp.~155 o C~room temp for 5 cycle ¡Ó(1%+0.05 £[)
Soldering Heat JIS-C-5202 6.4 : 350 ¡Ó10 o C for 3 ¡Ó0.5 seconds ¡Ó(1%+0.05 £[)