Cement Resistors, buy WRX Ceramic Core 68R 360R 390 Ohm Temperature Fuse Cement Resistors on China Suppliers Mobile

Product Details

WRX Ceramic Core 68R 360R 390 Ohm Temperature Fuse Cement Resistors

1,Good heat-durability,low temperature coefficient,high overload power, high insulting capacity.

2,It can be fused once over the stated temperature or current.

Forming Type & Power:

M5W,7W,10W

Performance Test:

Test Item	Test Condition	Performance
Temperature coefficient	Test the resistance value at normal temperature and normal temperature added 100 degrees centigrade, calculate per degree centigrade value change rate	350ppm
Short time overload	2.5 x rated voltage or Max. overload voltage(get the lower) for 5 second	R ≤ ± (2%R₀+0.05Ω)
Resistance to soldering heat	Immerge into the 350±10 degrees centigrade tin stove for 2-3 seconds	R ≤ ± (1%R₀+0.05Ω)
Solder ability	Immerge into the 245±3 degrees centigrade tin stove for 2-3 seconds	The soldering area is over 95%
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±2 degrees centigrade and 90-95% relative humidity.	R ≤ ± (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 degrees centigrade.	R ≤ ± (5%R₀+0.05Ω)
Nonflammability	Respectively load AC voltage by 5, 10, 16 times rated power for 5 minutes	No visible flame

Dimensions and Voltage Performance:

Part No.

Power

Resistance range

Dimensions(mm)

Max. working Voltage

Max. overload Voltage

Withstand Voltage

L±1.5

W±1

D±1

W1±0.05

d1±0.05

d2±0.05

H±0.05

WRX05B

0R1~100K

28.0

10.0

5.0

0.75

0.6/1.0

4.0

350V

600V

1000V

WRX07B

0R1~100K

36.0

10.0

5.0

0.75

0.6/1.0

4.0

500V

700V

1000V

WRX10B

10W

0R1~100K

48.0

10.0

5.0

0.75

0.6/1.0

4.0.

750V

850V

1000V

Performance Test:

Test Item	Test Condition	Performance
Temperature coefficient	Test the resistance value at normal temperature added 100℃,calculate per ℃ resistance value rate.	±350ppm/℃
Short time overload	5~10W: According 10 times rated 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%
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)
Nonflammability	Respectively load AC voltage by5,10,16 times rated power for 5 min.	No visible flame