Product Details

4K7 2K2 Wire wound Variable wirewound Power Resistor

LRX Gold aluminum housed wirewound power resistors

Features

1,Aluminum crust furface with good performance in heat radiatin, suitbale for cooling plate installation, can be used in the atrocious environment.

2,Small size, high power load.

3,High insulting capacity, encapsulation by non-flame inorganic Material, good performance in vibration.

4,Multi connection form will be easily to fix.

5,Widly used in power supply, Transducer, Elevator,Arena audio and high requirement equipment industry.

6,Resistance tolerance:±1%, ±2% ±5%, ±10%

Power:5W,10W,25W,30W,50W,75W,100W,150W,200W,250W,300W,500W

Tolerance: ±1%, ±2% ±5%, ±10%

Range:1R-100K

Description	Power	Tolerance	Range
LRX Gold Aluminum Housed Wire-wound Resistors	5W,10W,25W,30W,50W,75W,100W,150W,200W,300W,500W	±1% ±5% ±10%	1R-100K
TRX Trapezium Aluminum Housed Wire-wound Resistors	40W 60W 80W 100W 120W,150w,200w,300w,400w,500w,600w,800w,1000w	±1% ±5% ±10%	1R-100K
CRX Boat Type Aluminum Housed Wire-wound Resistors	50W 100W 150W	±1% ±5% ±10%	1R-100K

Performance Test:

Test Item	Test Condition	Performance
Temperature coefficient	Test the resistance value at normal temperature added 100℃,calculate per ℃ resistance value rate.	±300ppm/℃
Short time overload	According 10 times rated power to account the voltage or max .overload voltage (get the lower)for 5 seconds.	ΔR≤±(2%R0+0.05Ω)
Resistance to soldering heat	Immerge into the 350±10℃ tin stove for 2~3 seconds.	ΔR≤±(1%R0+0.05Ω)
Solderability	Immerge into the 245±3℃ tin stove for 2~3 seconds.	The area of soldering is over 95%
Temperature cycling	At -55℃ for 30 min,then at +25℃ for 10~15 min,then at +275℃ for 30 min,then at +25℃ for 10~15min, 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-hours off) at the 40±2℃ and 90~95% relative humidity.	ΔR≤±(5%R0+0.05Ω)
Load life in heat	Overload rated voltage or Max. working voltage(get the lower)m for 1000 hours (1.5 hours on and half-hours off) at the 70±2℃.	ΔR≤±(5%R0+0.05Ω)
Terminal strength	Pull:10N	ΔR≤±(2%R0+0.1Ω)
Vibration	Frequency:10~55Hz,Swing:0.75mm,Test time:6Hours	ΔR≤±(2%R0+0.1Ω)
Nonflammability	Respectively load AC voltage by5,10,16 times rated power for 5 min.	No visible flame