Flame-Proof Type Metal Oxide Film Resistors - MOR Series

Resistor Series - Resistor Series

Written by MOR Series

Tuesday, 10 June 2008 21:26

Flame-Proof Type Metal Oxide Film Resistors - MOR Series

METAL OXIDE FILM RESISTORS - MOR Series (Flame-Proof Type)

Type

Power

FEATURES

MOR-25

1/4W

High power-to-size ratio for significant space savings.

MOR-50

1/2W

Excellent long-term stability.

MOR-100

Complete flameproof construction.

MOR-200

High surge/overload capability.

MOR-300

Wide resistance range : 1Ω ~ 180K Ω.

MOR-500

Standard 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:

STYLE

DIMENSION (mm)

POWER RATING

VALUE

ΦD

Φd

(Watt)

RANGE

MO-25

6.0±0.2

2.3±0.3

28±2

0.5±0.02

1/4W

1~180KΩ

MO-50

9.5±0.5

3.2±0.5

26±2

0.6±0.02

1/2W

1~180KΩ

MO-100

11.0±0.5

4.5±0.5

35±2

0.7±0.02

1~180KΩ

MO-200

15±0.5

5.0±0.5

32±2

0.8±0.02

1~180KΩ

MO-300

17±0.5

6.0±0.5

32±2

0.8±0.02

1~180KΩ

MO-500

25±1

8.0±0.5

35±3

0.8±0.02

1~180KΩ

ELECTRICAL CHARACTERISTICS:

Style

MO-25

MO-50

MO-100

MO-200

MF-300

MO-500

Power Rating 70^oC

1/4W

1/2W

Operating Temp. Range

-55^oC ~ +155^oC

Max. Working Voltage

250V

350V

500V

Max. Overload Voltage

400V

700V

1000V

Dielectric Withstanding Voltage (AC)

300V

350V

500V

1000V

Max. Intermittence Overload Voltage

400V

700V

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

CHARACTERISTICS :

PERFORMANCE TEST

TEST METHOD

APPRAISE

Short Time Overload

JIS-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 seconds

By Type

Temperature Coefficient

JIS-C-5202 5.2 : -55^oC ~+155^oC

By Type

Insulation Resistance

JIS-C-5202 5.6 : in V-Block

≧1000 MΩ

Solderability

JIS-C-5202 6.5 : 230^oC for 5±0.5 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

≧2.5KG/24.5N

Pulse Overload

JIS-C-5202 5.8 : 4 time RCWV 10000 cycles(1 sec.on, 25 sec.off)

±(2%+0.05)Ω

Load Life in Humidity

JIS-C-5202 7.9 : 40±2^oC, 90~95% RH at RCWV for 1000 hrs

±(3%+0.05)Ω

(1.5hrs. on, 0.5 hrs. off)

Load Life

JIS-C-5202 7.10 : 70^oC 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

Last Updated ( Sunday, 21 September 2008 10:37 )