Flame-Proof Type Carbon Film Resistors - FCR Series

Flame-Proof Type Carbon Film Resistors - FCR Series

CARBON FILM RESISTORS - FLAME-PROOF TYPE FCR Series

TYPE

POWER

FEATURES

FCR-25

1/4W

Lower cost and prompt deliver.

FCR-50

1/2W

High power-to size ratio for significant space savings.

FCR-100

1W

Complete flameproof construction-UL

FCR-200

2W

Excellent long-term stability.

FCR-300

3W

Wide resistance range : 1Ω ~ 10mΩ

Standard tolerance : ±5%

INTRODUCTION

The FCR series flame-proof Carbon Film Resistors are manufactured by Coating a homogeneous film of pure carbon on high grade ceramic rods, resistance less than 10 have an electroless deposited nickel film, and are coated with layers of gray color flame-proof lacquer. These resistors meet overload tests in accordance with UL specification  without producing a fire hazard.

DIMENSIONS:

STYLE

DIMENSION (mm)

POWER RATING

L

ΦD

H

Φd

(Watt)

FCR-25

6.3±0.5

2.3±0.3

28±2

0.6±0.05

1/4W

FCR-50

9.0±0.5

3.2±0.3

26±2

0.6±0.05

1/2W

FCR-100

11.5±1.0

3.2±0.5

35±2

0.8±0.05

1W

FCR-200

15.5±1.0

4.5±0.5

32±2

0.8±0.05

2W

FCR-300

17.5±1.0

6.5±0.5

35±2

0.8±0.05

3W

ELECTRICAL CHARACTERISTICS:

Style

FCR-25

FCR-50

FCR-100

FCR-200

FCR-300

Power Rating 70oC

1/4W

1/2W

1W

2W

3W

Operating Temp. Range

-55oC ~ +155oC

Max. Working Voltage

250V

350V

500V

500V

600V

Max. Overload Voltage

500V

700V

1000V

1000V

1000V

Dielectric Withstanding Voltage (AC)

500V

700V

1500V

1500V

1500V

Max. Intermittence Overload Voltage

750V

1000V

1500V

2000V

2000V

T.C.R.(ppm/℃)

FCR-25 /FCR-50

FCR-100 /FCR-200 /FCR-300

100KΩ down

100K~1MΩ

1MΩ up

100KΩ down

100K~1MΩ

1MΩ up

-0.7

-0.5

-0.35

+350PPM

-0.7

-0.35

* 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

±(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 : -55oC ~+155oC

By Type

Insulation Resistance

JIS-C-5202 5.6 : in V-Block

≧1000 MΩ

Solderability

JIS-C-5202 6.5 : 230oC 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±2oC, 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 : 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

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