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Zhengli Group Company Limited

Resistor, Cement Resistor manufacturer / supplier in China, offering Cement Resistor, CFR Carbon Resistor, Metal Film Fixed Resistor (Mfr) and so on.

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Cement Resistor

FOB Price: US $0.1 / Piece
Min. Order: 1,000 Pieces
Min. Order FOB Price
1,000 Pieces US $0.1/ Piece
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Production Capacity: 1000k Pieces a Month
Payment Terms: L/C, T/T

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Basic Info
  • Model NO.: CF
  • Function for Resistance: Shunt Resistor
  • Material: Cement Resistor
  • Type: Cement Resistor
  • Resistance change scale: Fixed
  • Brand: Zhengli
  • Trademark: zhengli
  • HS Code: 85331000
  • Resistance: Fixed Resistor
  • Installation: DIP Resistor
  • Packaging: Throught Hole
  • Quantity: Cement Resistor
  • Application: Television
  • Manufacturer: Zhengli
  • Origin: Dongguan Guangdong China
Product Description
Cement resistor
 
Features

good heat-durability ,low temperature coefficient ,low noise ,high load power,high insulation capacity .
operating ambient temperature : -55ºC~ +275ºC
resistance tolerance :±1% , ±2% , ±5% , ±10% ,
 

structural drawing :

Cement Resistor
A. padding materials
B. tinned copper lead wire
C. ceramic shell
D. fiberglass or ceramic  core or resistors film
E. resistance  wire or ceramic core
F. iron cap



Product name
RXR=wirewound
HRX=metal oxide cut
BRX=fiberglass wirewound
NRX=oninductive
 
 
dimensions and resistance range

Cement Resistor
 
powerDimensions(mm)Resistance  range
L±1.5W±1H±1C±1d±0.05RXRBRXHRXNRX
1W146.55.5230.620.1R~100R/100R~100K0R2~2R7
2W1877.5210.750.1R~820R/220R~100K0R1~10R
3W2288350.750.1R~3K31R~120R100R~100K0R1~27R
4W2288350.750.1R~3K31R~120R100R~100K0R1~27R
5W22109350.750.1R~3K31R~120R100R~100K0R1~27R
6W35109350.750.1R~7K51R~390R820R~100K0R2~39R
7W35109350.750.1R~7K51R~390R820R~100K0R2~39R
8W35109350.750.1R~7K51R~390R820R~100K0R2~39R
9W48109330.750.1R~12K1R~470R1K~100K0R2~47R
10W48109330.750.1R~12K1R~470R1K~100K0R2~47R
11W48109330.750.1R~12K1R~470R1K~100K0R2~47R
15W4812.511.5330.750.2R~18K1R~560R/0R2~56R
17W601413.5330.750.2R~30K1R~620R/0R2~68R
20W~25W601413.5330.750.2R~30K1R~620R/0R2~68R
30W~40W891919230.750.2R~30K/1K~100K/


Rated power derating curve

Cement Resistor

Performance test
 
Test itemTest conditionperformance
Temperature coefficientTest the resistance value at normal temperature and normal temperature added 100ºC ,calculate per ºC resistance value change rate±300ppm/ºC
Short time overload1~4W: according 5 times rated power to account the voltage  , 5~100W :according 10 times rated power to account the voltage  or max overload voltage (get the lower) for 5 secondsR≤±(2%Ro+0.05Ω)
Resistance  to soldering heatImmerge  into 350±10ºC tin stove for 2~3 secondsR≤±(1%Ro+0.05Ω)
solderabilityImmerge  into 260±5ºC tin stove for 2~3 secondsThe area of soldering is over 95%
Temperature cyclingAt -55ºC for 30 minutes ,then at +25ºC for 10~15 minutes,then at +275ºC for 30 minutes ,then at  +25ºC for 10~15 minutes,total 5 cyclesR≤±(1%Ro+0.05Ω)
Load life in humidityOverload rated  voltage or max working voltage (get the lower) for 1000hours (1.5 hours on and half-hour off) at the  40±2ºC and 90~95% relative humidityR≤±(5%Ro+0.05Ω)
Load life in heatOverload  rated  voltage or max working voltage (get the lower) for 1000 hours (1.5 hours on and half-hour off) at the  70±2ºCR≤±(5%Ro+0.05Ω)
nonflammabilityRespectively load ac  voltage by 5,10,16 times rated power for 5 minutesNo visible flame
 
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