Shenzhen PakHeng Electronics Ltd


Catalogue


Contact US


Tel: 86-755-86229698


Fax : 86-755-86229508


Email: sales01@pakheng.com / sales20@pakheng.com 


Address: The 3rd Industry Zone, Yanchuan, Songgang, Baoan District, Shenzhen, Guangdong, China

1/8W 1/4W 1/2W 1W 2W 3W 5WColor Coding Formula Thin Layer 2% 5% 10% Carbon Film Resistors

1/8W 1/4W 1/2W 1W 2W 3W 5WColor Coding Formula Thin Layer 2% 5% 10% Carbon Film Resistors

Carbon composition resistors used to be the most common type of resistors used in electronics due to their relative low cost and their great reliability. Carbon composition resistors use a solid block of material made from carbon powder, an insulating ceramic, and a binder material. The resistance is controlled by varying the ratio of carbon to the filler materials.

            Carbon film resistors use a thin layer of carbon on top of an insulating rod which is cut to form a narrow, long resistive path.By controlling the length of the path and its width, the resistance can be precisely controlled with tolerances as tight as 1%. Overall, the capabilities of a carbon film resistor are better than a carbon composition resistor, with power ratings up to 5 watts and better stability. However, their frequency response is much worse due to the inductance and capacitance caused by the resistive path cut in to the film

    .CCR.jpg   

      Features:


    1、Stable performance, extensive resistance, small size,high operating temperature and high ultimate voltage.

    2、 Highly adaptive pulse load, good high frequency performance.

    3、 Operating ambient temperature: -55℃~+125℃.

    4、 The resistor’s normal size coats yellow and the mini size coats brown.

    5、 Resistance tolerance±2%±5%±10%.


    Construction Drawing:      


    图片1.pngAHigh heat exchanged Ceramic core.

    B、High stability Electric conduction film.

    C、 Iron Cap.

    D、Epoxy resin coating.

    E、Color Ring.

    F、Tinned copper lead wire or CP lead wire.



    Rated Power Derating Curve:

            图片3.png图片3.png        图片3.png

     

             






    Performance Test


     Test Item

                     Test Condition

         Performance

    Temperature coefficient

    Test the resistance value at normal temperature and normal temperature added 100,calculate perresistance value change rate .

    ±1000ppm/

    Short time overload

    2.5 × rated voltage or Max.overload voltage (get the lower) for 5 seconds.

    ΔR≤±(1%R0+0.05Ω)

    Pulse overload

    At 4 × rated voltage or Max. pulse overload voltage (get the lower) cycle 10000±200 times(1 second on, 25 seconds off ).

    ΔR≤±(2%R0+0.05Ω)

    Resistance to soldering heat

    Immerge into 350±10℃ tin stove for 2~3 seconds.

    ΔR≤±(1%R0+0.05Ω)

    Solderability

    Immerge into 245±3℃ tin stove for 2~3 seconds.

    The area of soldering is over 95%


    Temperature cycling

    At  -55for 30 min, then at +25for 10~15 min, then at +125for 30 min, then at +25for 10~15 min, total 5 cycles.

    ΔR≤±(1%R0+0.05Ω)

    Load life in humidity

    Overload rated voltage or Max.working voltage (get the lower) for 1000 hours (1.5 hours on and half-hour off ) at the 40±2and 90~95% relative humidity.

    ΔR≤±(5%R0+0.05Ω)


    Load life in heat

    Overload rated voltage or Max.working voltage (get the lower ) for 1000 hours (1.5 hours on and half-hour off) at the 70±2.

    ΔR≤±(5%R0+0.05Ω)



    Dimentions and Voltage Performance

    料号

    Part No.

    功率

    Power

    阻值范围

    Resistance range

    尺寸Dimensions(mm)

    最大工作电压Max.working voltage

    最大负荷电压Max.overload voltage

    最高脉冲电压Max.Pulse voltage

    最高绝缘电压Max.insulation voltage




    L±1

    D±0.5

    d±0.05





    CCR016

    CFR016

    1/8W

    1/6W

    0R~22M

    3.5

    1.7

    0.41

    200V

    400V

    500V

    300V

    CCR14S

    CFR14S

    1/4WS

    0R~22M

    3.5

    1.7

    0.41

    200V

    400V

    500V

    300V

    CCR014

    CFR014

    1/4W

    0R~22M

    6.0

    2.3

    0.45

    250V

    500V

    750V

    500V






    0.52





    CCR12S

    CFR12S

    1/2WS

    0R~22M

    6.0

    2.3

    0.45

    250V

    500V

    750V

    500V






    0.52





    CFR012

    1/2W

    0R1~22M

    9.0

    3.2

    0.58

    350V

    700V

    1000V

    700V

    CFR01S

    1WS

    0R1~22M

    9.0

    3.2

    0.58

    350V

    700V

    1000V

    700V

    CFR01B

    1W

    0R1~22M

    11.0

    4.5

    0.75

    500V

    1000V

    1000V

    1000V

    CFR02S

    2WS

    0R1~22M

    11.0

    4.5

    0.75

    500V

    1000V

    1000V

    1000V

    CFR02B

    2W

    0R1~22M

    15.0

    5.0

    0.75

    500V

    1000V

    1000V

    1000V

    CFR03S

    3WS

    0R1~22M

    15.0

    5.0

    0.75

    500V

    1000V

    1000V

    1000V

    CFR03B

    3W

    0R1~22M

    24.0

    8.0

    0.75

    700V

    1200V

    1200V

    1000V

    CFR05S

    5WS

    0R1~22M

    24.0

    8.0

    0.75

    700V

    1200V

    1200V

    1000V


        Due to our outstanding quality and excellent serviceswe won a good  reputation in the resistors industry fieldWe have streng technical strength

    advanced preduction and test equipmentsAll the main raw materials are purchased from GermanyJapan and Taiwanin the preduction precess

    we strictly carry Out the IEC standardscan according customers special requirements to carry out the Japan JIS or Amerlca MIL standardsWe can

    produce all series resistorssuch as Chip ResistorsChip Array Resistors, Array ResistorsCarbon Film ResistorsMetal Film ResistorsMetal Oxide

    Film ResistorsFuse ResistorsMetaI Glaze ResistorsWirewound ResistorsCement ResistorsCeramic Tube ResistorsAluminum Housed Resistors

    and Milliohm Resistors

    质量监控.jpg

    CERTIFICATE

    As one of the SONY Green Partnerswe strictly follow the SONY SS-00259,and ROHS standards to manage the envirenment substance since July2003

    All Of the products meet the ROHS and SONY SS-00259 standards from Jan2004We according the REACH requirements to manage the related chemistry

    substance from the year Of 2008

    1995: ISO9002 certificate.                1997Safety resistors CQC certificate.       2002ISO9001 certificate

     

    2005IS014001 certificate.                 2006SONY GP certificate,                2009:IEC QC080000 Certificate


    证书3.jpg证书4.jpg


    证书1.jpg证书2.jpg

    PakHeng Electronics is one of the leading 1/8W 1/4W 1/2W 1W 2W 3W 5WColor Coding Formula Thin Layer 2% 5% 10% Carbon Film Resistors manufacturers and suppliers in China, offering the free sample and competitive price. Welcome to wholesale the high quality bulk resistors made in China from us. It if of good performance and high safety.
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