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interrupting rating fuse_Fuse Widerstand

Category: Resistance fuses
Product Introduction:interrupting rating fuse
Order Hotline:0769-83811196
    A、 Product features
    Anti surge performance of the product is good, the fuse good consistency, small volume, convenient installation, safe and
    reliable, widely used in electric light source, switching power supplies, chargers and home appliances and other electronic
    equipment。

    Two、 Size and shape
     
    fuse manufacturers
    Type number
    Rated power
    W
    Size (mm)
    Paint root length allowed*(mm)
    Dmax
    Lmax
    H±1
    d±0.05
    RXF
    0.25、0.5S
    3.0
    7.0
    60~70
    0.38~0.45
    ≤1
    0.5、1S
    4.0
    11
    60~95
    0.43~0.60
    ≤1.5
    1、2S
    5.0
    12
    60~70
    0.54~0.72
    2、3S
    6.0
    16
    60~80
    0.60~0.72
     
     
     
     
     
     
    Three、 Technical note
    General data
    1、  Nominal resistance tolerance:±5%、±10%
    2、  Climate category:55/155/21
    3、  Low pressure:8.5kpa
    4、  Stability grade:5%
    5、  The resistance change limit value:
    5.1、 Long term test:±(5%R+0.1Ω)
    5.2、 Short term test:±(1%R+0.05Ω) 
    6、   Temperature coefficient:±350*10-6/℃
    7、   Rated current:I2(A)=P(W)/R(Ω)
    8、Power curve in Figure2:
     
    fuse suppliers
    Note: the power rating is the maximum continuous operating at 70 ℃ temperature exceeds 70 ℃, reducing power consumption by the curve。
    9、Fuse characteristic
       Definition: the overload of resistors impose requirements, resistance increased significantly; the current flowing through the
    resistor to drop to the initial experimental current below 1/50 is called the fuse. The resistor from plus the specified overload to
    fuse the time required is called the melting time. This property is called the fuse characteristics。
       Requirements: overload conditions at rated current ratio rules, the melting time shall conform to the following provisions;

                                                         Table3
     
    Rated current ratio (Times)
    Fusing time(S)
    0.25W
    R<1Ω:6    R≥1Ω:8
    ≤30
    0.5~3W
    R<1Ω:5    R≥1Ω:6
    ≤30
    Note: the melting time according to make user requirements
     
    10、Anti shock performance
          According to figure 3 switch K, turn on the switch K2, according to 1S 1S off, K1 repeated off 30 times, test the resistance should not open。
          
     electrical fuse manufacturers
    11、Surge (Surge) characteristics
    Test conditions: in accordance with the standard IEC61000-4-5 test, load specific for the output end is connected with the
    corresponding, applying a surge voltage, waveform:1.2/50us  8/20usCombination wave; coupled mode: L-N, L N-PE, L-PE,
     N-PE according to the requirement of selection; polar respectively: positive and negative; phase angle: 0°、90°、180°、270°,Surge frequency 5 times each, interval time60S。
       Test standard: after the test, test the resistance should not open。

        12, the main test items, test methods and performance requirements (if no special instructions, are in the
    standard test atmospheric conditions)                  
     
    Serial number
    Test project
    Test method
    Performance requirements
    1
    Resistance
    Resistance sorting instrument measurement error。
    Resistance value at nominal resistance and
    The allowable deviation range。
    2
    Short term load
    Rated voltage, resistor applied 2.5 times for 5S, 1 ~ 2H after recovery of the resistance measurement, and calculate the resistance change rate 。
    The resistance change:
    △R≤±(2%R+0.05Ω)
    3
    Weldability
    Slot welding method, the resistor terminations immersion(260±5)℃
    The solder pot, the insertion depth distance element body2-0.5 mm
    For 2± 0.5S, remove the observed solder coverage area。
    Be immersed in the peripheral part of the direction of the surface 90% coverage。
    4
    High voltage
    The resistor is placed in metal “ V” grooves, insulation voltage regulation, voltage and resistance in the two wire and &ldquo together; V” groove between 60S, continued。
    No breakdown, arcing
    5
    Resistance to soldering heat
    Before the experiment measuring resistance, the resistor terminations immersion350±10℃The solder pot, continued 3.5±0.5 S After recovery,1hAfter measuring, calculating the resistance change rate。
    The resistance change:
    △R≤±(1%R+0.05Ω)
    6
    Rapid temperature changes
    According to the low temperature:-55±3℃,Time: 30 minutes, normal temperature, time2-3Minutes, high temperature 155± 3 ℃ , time: 30 minutes at room temperature, time, style= "2-3 minutes, this is a cycle, do 5 cycles, restore the 1-2h after measuring and calculating the resistance change rate
     
    The resistance change:
    △R≤±(1%R+0.05Ω)
    7
    Durability
    The resistor is placed in the constant temperature box (70± 3) ℃, input rated DC voltage, 1.5h, 0.5h fault, so the cycle of 1000h, 1&mdash recovery after removing; after 4h, the resistance measurement, calculation of resistance change rate. The paperspan>
    The resistance change:
    △R≤±(5%R+0.1Ω)
     
    8
    Terminal strength
    Pull: with 10N it continued to pull 10S; bending:In the end with5NLoad, the resistor body (2-3 "FONT-SIZE: 12pt") S in 90° after recovery, the other direction bending, namely bending 2 time.
    The resistance change:
    △R≤±(1%R+0.05Ω)。
     
    9
    Vibration
    The resistor body and installation point distance of 6± 1mm, vibration rate range of 10-500HZ,: 0.75mm "FONT-SIZE: 12pt 98m/s2 "FONT-SIZE: 12pt" > the lesser of ; vibration direction and time along the Z "FONT-SIZE: 12pt", XY axis 2h "FONT-SIZE: 12pt, , cycle:1min;
    (10-55-10HZ),Resistance measurement test, and calculate the resistance change rate。
    1)Appearance: no mechanical damage
    (2)The resistance change:
    △R≤±(1%R+0.05Ω)
     
    10
    Climate sequence
    -Dry   cyclic damp heat test, Db, the first cycle cold;   low pressure   cyclic damp heat test cycle, Db, DC load the rest
    The resistance change:
    △R≤±(5%R+0.1Ω)
    11
    The resistance change
    The test samples were installed in the 25± 3mm, applying 5 "FONT-SIZE: 12pt", 10 "FONT-SIZE: 12pt", 16 rated power consumption load, duration of 5min< span style= "FONT-SIZE: 12pt" > or to the resistor into open check。
    The screen cylinder misfire
    13、Braid type and size as shown in Figure 4, table5:
    fuse values
     
    Taping specifications
    Size  (㎜)
    U
    W
    P
    L1-L2
    T
    Z
    R
    t
    S
    T26
    38±1
    26±0.5
    5±0.5
    <0.5
    6±0.1
    ≤1
    0
    ≥3.2
    <0.8
    T52
    64±2
    52±1
    <1
    T63
    75±2
    63±1
    ≤1,2
    75±2
    63±1
    10±0.5
    T72
    84±2
    72±2
    5±0.5
    <1.2
    84±2
    72±2
    10±0.5

     
     
     
     
     
     
     
     
     
     
     
     
     
    14、Casing product style and size is shown in Figure 5, table6
     
    Shape
      inch ruler; (㎜)
    H±1
    H1±1.5
    H2±1.5
    h≤ h (1±5%)
    h1±2
    h2±2
    TA Type
    70
    20
    20
    50
    10
    10
    TB Type
    80
    5
    25
    40
    10
    30
    Note: 1, the lead exposed parts≤5㎜, tolerance is +2/-1 mm, 2, casing size can be manufactured according to customer requirements
    fuse amp rating
    15Molding style and size chart
    fuse rating selection
    Shape
    Size(㎜)
    P±0.5
    H±1
    h±1
    Note:
    Shape and size can be produced according to customer requirements
    nType
    5
    4
     
    10
    4
     
    BType
    5
     
    4.5
    10
     
    4.5
    LType
    10
    4.5
     
    12
    4.5
     
     
     
     
     
     
     
     
     
     
     
     
    16、Specification name specification (cases)
     
    interrupting rating fuse
     
    17、Resistor color ring sign
    interrupting rating fuse
    Color
    Color
    First digital
    First digit
    Second digitalSecond digit
    Third digital
    Third digit
    Multiplier
    Malutiplier
    Error rateTolerance
    BlackBlack
    0
    0
    0
    100
    BrownBrown
    1
    1
    1
    101
    ±1
    红Red
    2
    2
    2
    102
    ±2
    OrangeOrange
    3
    3
    3
    103
    HuangYellow
    4
    4
    4
    104
    GreenGreen
    5
    5
    5
    105
    ±0.5
    BlueBlue
    6
    6
    6
    106
    ±0.25
    PurpleViolet
    7
    7
    7
    107
    ±0.1
    AshGray
    8
    8
    8
    108
    白White
    9
    9
    9
    109
    Gold Gold
    10-1
    ±5
    SilverSilver
    10-2
    ±10
    no Plain
    ±20
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
       
     
    Product description
    ● product introduction: fuse resistor (also called insurance resistor, Wirewound resistors, Wirewound resistors, fuse resistance), is a new type of special element has a dual role of resistor and fuse. It with the letter &ldquo in the circuit; RF” or “ R”
    representation. 
    ● Rated power: 1/4W, 1/2WS, 1/2W, 1WS, 1W, 2WS, 2W, 3WS etc
    .
    ● withstand voltage: 350V
    ● resistance range: 0.1Ω ~510Ω. 
    ● error: ± 1%~± 5%
     
    certification: UL/VDE/CQC certification 
    The product features:
    1, is the best choice for small power low cost scheme.
    2, can satisfy the anti surge current shock and anti lightning requirements.
    Heat dissipation capability of
    3, strong, low temperature coefficient, high pressure resistance, insulation, flame retardant, explosion proof, long life.
     
     

    BrandPowerful
    ►R & D, production and sales. Protection of electronic components industry standard setters. Rich experience in production technology, 100% pass rate. All products through international quality certification standards, 63 patent certificates.
    Strong Production Capacity
    ►The introduction of top international production, testing equipment, leading R & D manufacturing process; Multiple rigorous safety testing processes, Annual production capacity of 1 billion, Sales and service network all over the world.
    Professional Technical Support
    ►Our company provides free samples to test. Unconditional 100% quality assurance; One on one to provide you with protection element solutions, Tailored for you.
    Distinguished Quality Service
    ►We have a professional management team and sales network;Service up to more than 10,000 users worldwide;Homegrown, no middleman, Saves you 20% of the product price.

    Dongguan Yaxun Electronic Hardware Product Co., Ltd.

    Address:Dongguan changping town bridge industrial zone 15 well

    Tel:0769-83811196

    E-mail:cnyaxun@yahoo.com

    Web:http://www.bimetalfuse.cn

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    Contact Yaxun
    Support Hotline:0769-83811196

    E-mail:cnyaxun@yahoo.com

    Address:Changping Town, Dongguan City Industrial Park Bridge Lek 15