1K 10k Ohm Wire Wound Variable Power Resistor

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

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

LRX

50B

J

0

AL01

10R00

Product Name

Power

Tol.

Special Code

Forming

Ohm

Gold Aluminum Housed Wirewound Resistors

05B=5W

25B=25W

50B=50W

100=100W

200=200W

300=300W

10B=10W

30B=30W

75B=75W

150=150W

250=250W

300=300W

F=±1%

G=±2%

J=±5%

K=±10%

0R100=0.1Ω

0R220=0.22Ω

10R00=10Ω

100R0=100Ω

10K00=10KΩ