14 | 06 | 2009
Flame-Proof Type Metal Oxide Film Resistors - MOR Series Print
Cement Resistor - Cement Resistor - Series
Written by MOR Series   
Tuesday, 10 June 2008 21:26

  Flame-Proof Type Metal Oxide Film Resistors - MOR Series

 
Flame-Proof Type Metal Oxide Film Resistors - MOR Series
METAL OXIDE FILM RESISTORS - MOR Series (Flame-Proof Type)
TypePowerFEATURES
MOR-251/4WHigh power-to-size ratio for significant space savings.
MOR-501/2WExcellent long-term stability.
MOR-1001WComplete flameproof construction.
MOR-2002WHigh surge/overload capability.
MOR-3003WWide resistance range : 1Ω ~ 180K Ω.
MOR-5005WStandard tolerance : ±5% ,± 2%
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.
DIMENSIONS:
STYLEDIMENSION (mm)POWER RATINGVALUE
LΦDHΦd(Watt)RANGE
MO-256.0±0.22.3±0.328±20.5±0.021/4W1~180KΩ
MO-509.5±0.53.2±0.526±20.6±0.021/2W1~180KΩ
MO-10011.0±0.54.5±0.535±20.7±0.021W1~180KΩ
MO-20015±0.55.0±0.532±20.8±0.022W1~180KΩ
MO-30017±0.56.0±0.532±20.8±0.023W1~180KΩ
MO-50025±18.0±0.535±30.8±0.025W1~180KΩ
ELECTRICAL CHARACTERISTICS:
StyleMO-25MO-50MO-100MO-200MF-300MO-500
Power Rating 70oC1/4W1/2W1W2W3W5W
Operating Temp. Range

-55oC ~ +155oC

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 ±1%, ±2%,± 5%

1Ω ~510KΩ

Temp. Coefficient (by Type)

±350ppm/oC

* The listed resistance range for standard resistance, below or over this resistance is on request
ENVIRONMENTAL CHARACTERISTICS :
PERFORMANCE TESTTEST METHODAPPRAISE
Short Time OverloadJIS-C-5202 5.5 : 2.5 times RCWV for 5 seconds±(0.75%+0.05)Ω
Dielectric Withstanding V.JIS-C-5202 5.7 : in V-Block for 60 secondsBy Type
Temperature CoefficientJIS-C-5202 5.2 : -55oC ~+155oCBy Type
Insulation ResistanceJIS-C-5202 5.6 : in V-Block1000 MΩ
SolderabilityJIS-C-5202 6.5 : 230oC for 5±0.5 seconds95% min. coverage
Resistance to SolventJIS-C-5202 6.9 : Trichroethance for 1 min. with ultrasonicno deterioration
Terminal StrengthDirect load for 10 sec. In the direction of the terminal leads2.5KG/24.5N
Pulse OverloadJIS-C-5202 5.8 : 4 time RCWV 10000 cycles(1 sec.on, 25 sec.off)±(2%+0.05)Ω
Load Life in HumidityJIS-C-5202 7.9 : 40±2oC, 90~95% RH at RCWV for 1000 hrs±(3%+0.05)Ω
(1.5hrs. on, 0.5 hrs. off)
Load LifeJIS-C-5202 7.10 : 70oC at RCWV for 1000hrs (1.5hrs.on, 0.5hrs.off)±(3%+0.05)Ω
Temperature Cycling ±(1%+0.05)Ω
Soldering Heat ±(1%+0.05)Ω