CR Standard Series

CR Series Carbon Film Resistors

CARBON FILM RESISTORS CR Series

1/6W; 1/8W, 1/4W, 1/2W, 1W, 2W, 3W,

CR-12, CR-25, CR-50, CR-100, CR-200, CR-300

 

INTRODUCTION

Featuring consistency and stably-controlled, these carbon film resistors with reasonable prices are widely & largely used in the electronic, electrical and information industries.
This resistor is a ceramic bar tightly coated with a carbon film which is composed of carbon separated from organic compound through the treatment of high-temperature vacuum. After the carbon-coated bar is connected with proper joint and engraved with grooves, its surface is finished with epoxy resin so that the bar is enclosed with a protective film.

 

FEATURES

  • Industry's lower cost and deliver from stock.
  • Exceptional long-term stability.
  • Exceeds carbon comp MIL-R-11 performance.
  • Standard tolerance:?%, ?%
  • Variety of packaging-bulk, strip pack, 26mm and 52mm tape and reel, cut and formed or radial Panasert.

 

DIMENSIONS:

STYLE

DIMENSION (mm)

POWER RATING (Watt)

VALUE RANGE

L

ФD

H

Фd

CR-12

3.3?.4

1.8?.3

28?

0.43?.05

1/6W ; 1/8W

1Ω~10M

CR-25

6.3?.5

2.3?.3

28?

0.5?.05

1/4W

1Ω~10M

CR-50

9.0?.5

3.2?.5

26?

0.6?.05

1/2W

1Ω~10M

CR-100

11.5?.0

4.5?.5

35?

0.7?.05

1W

1Ω~10M

CR-200

15.5?.0

5.0?.5

32?

0.8?.05

2W

1Ω~10M

CR-300

17.5?.0

6.0?.5

35?

0.8?.05

3W

1Ω~10M

 

ELECTRICAL CHARACTERISTICS

Style

CR-12

CR-25

CR-50

CR-100

CR-200

CR-300

Power Rating 70°C

1/6W ; 1/8W

1/4W

1/2W

1W

2W

3W

Operating Temp.Voltage

-55°C ~ +155°C

Max. Working Voltage

150V

250V

350V

500V

500V

600V

Max. Overload Voltage

300V

500V

700V

1000V

1000V

1000V

Dielectric Withstanding Voltage

300V

500V

700V

1000V

1000V

1000V

T.C.R. (PPM)

CR-12/CR-25/CR-50

CR-100/CR-200/CR-300

100KΩdown

100KΩ~1MΩ

1MΩup

100KΩdown

100KΩ~1MΩ

1KΩup

+350/-500

+350/-700

+350/-1000

+350PPM

+350/-500

+350/-1000

 

ENVIRONMENTAL CHARACTERISTICS

PERFORMANCE TEST

TEST METHOD

APPRAISE

Short Time Overload

JIS-C-5202 5.5 : 2.5 times RCWV for 5 seconds

?0.75%+0.05Ω)

Dielectric Withstanding V.

JIS-C-5202 5.7 : in V-Block for 60 seconds

By Type

Temperature Coefficient

JIS-C-5202 5.2 : -55°C ~+155°C

By Type

Insulation Resistance

JIS-C-5202 5.6 : in V-Block

≥1000 MΩ

Solderability

JIS-C-5202 6.5 : 230°C for 5?.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%+0.05Ω)

Load Life in Humidity

JIS-C-5202 7.9 : 40?°C, 90~95% RH at RCWV for 1000 hrs
(1.5hrs. on, 0.5 hrs. off)

?3%+0.05Ω)

Load Life

JIS-C-5202 7.10 : 70°C at RCWV for 1000hrs (1.5hrs.on, 0.5hrs.off)

?3%+0.05Ω)

Temperature Cycling

JIS-C-5202 7.4 : -55°Croom temp.155°C~room temp. for 5 cycles.

?1%+0.05Ω)

Soldering Heat

JIS-C-5202 6.4 : 350?0°C for 3?.5 seconds

?1%+0.05Ω)

 

 

 

WILDEX CORPORATION
1F, No.1, Aly. 7, Ln. 68, Bao'an St., Xindian Dist., New Taipei City 231, Taiwan (R.O.C.)

TEL:886-2-29126881 FAX:886-2-29126929  wildex@wildexco.com¡Bwildex@ms26.hinet.net