75W Gold aluminum power resistor, Wirewound, Heatsink

Production name

Gold Aluminum Housed Wirewound Resistor

Rated power

5W-500W

Resistance value

OR01 ~ 82K;

Resistance tolerance

±1%,±2%,±5%,±10%;

Features

1.Gold Aluminum crust surface with good performance in heat radiation,suitable for cooling plate installation,can be used in the atrocious environment;

2.Small size,high power load;

3.High insulating capacity,encapsulation by non-flame inorganic material good performance in vibration;

4.Multi connection form will be easily to fix;

5.Widely used in Power supply,Transducer,Elevator,Arena audio and high requirement equipment Industry.

performance

Test item

Test condition

performance

Temperature coefficient

The resistance value at normal temperature and normal temperature added 100°C,calculate per °C resistance value change rate.

±300ppm/°C

Short time overload

Rated power to account the voltage or max.overload voltage(get the lower) for 5 seconds.

R≤ ±(2%+0.05Ω)

Resistance to solderling heat

Immerge into the 350±10°C tin stove for 2~3seconds.

R≤ ±(1%+0.05Ω)

Solderability

Immerge into the 245±3°C tin stove for 2~3seconds.

The solderling area is cover 95%

Temperature cycling

At -55°C for 30min,then at +25°C for 10-15min,then at +275°C for 30min,then at +25°C for 10-15min,total 5cycles.

R≤ ±(1%+0.05Ω)

Load life in humidity

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

R≤ ±(5%+0.05Ω)

Load life in heat

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

R≤ ±(5%+0.05Ω)

Terminal strength

Pull :10N.

R≤ ±(2%+0.1Ω)

Vibration

Frequency:10~55Hz,Swing:0.75mm,Test time:6Hours.

R≤ ±(2%+0.1Ω)

Nonflammability

Respectively load AC voltage by 5,10,15 times rated power for 5 minutes.

No visible flame

Note

More details,please feel free to contact us.