Rx27 Power Variable Wirewound Coating Cement Resistor

• Customization: Available
• Resistance: Fixed Resistor
• Function for Resistance: Load Resistor
• Model NO.: RX27
• Installation: DIP Resistor
• Material: Wire-wound Resistor
• Packaging: Surface Mount
• Type: Photoresistor
• Shape: Square
• Brand: Liwang
• Productor Name: Rx27 Power Variable Wirewound Coating Cement Resis
• Environmental Certification: ISO14000
• Quality Certification: ISO9001: 2008
• Safety Certification: CQC 03003095~3097
• Other Certification: RoHS
• Transport Package: Box
• Specification: ISO14000, ISO9001: 2008, CQC 03003095~3097, RoHS
• Trademark: Liwang
• Origin: Changzhou Jiangsu China(Mainland)
• HS Code: 8533400000
• Production Capacity: 100000 Pieces/Week

Product Description

Product description of Rx27 Power Variable Wirewound Coating Cement Resistor
RX27 type cement resistors are dielectric strength, weldability strong, various specifications, wide use.
Specifications ceramic wire wound resistor
1. Heat and flame resistant
2. Completely insulated character suitable for printed circuit board
3. Rx27 cement resistors have many kinds of types.
4. Performances are stable

Products

Cement type resistors (LW)

Specifications

Part NO. RX

Dimensions

Resistance range

W± 1

H± 1

L± 1.5

C± 3

D± 0.05

KN

MO

2W

7

7

18

30

0.8

0.1~270

271~33K

3W

8

8

22

35

0.8

0.1~1K

1K1~47K

5W

10

9

22

35

0.8

0.1~1K

1K1~68K

7W

10

9

35

35

0.8

0.1~1K

1K1~68K

10W

10

9

48

33

0.8

0.1~1K

1K1~50K

15W

12.5

11.5

48

33

0.8

0.1~1K

1K1~150K

20W~25W

14

13.5

60

33

0.8

0.1~1K

1K1~150K

Power rated Item

2W

3W

5W

7W

10W

15W

20W~25W

Max. working voltage

150V

350V

350V

500V

750V

1000V

100V

Dielectric withstanding voltage

1000V (AC)

1000V (AC)

1000V (AC)

1000V (AC)

1000V (AC)

1000V (AC)

1000V (AC)

Resistance tolerance

J± 5%

J± 5%

J± 5%

J± 5%

J± 5%

J± 5%

J± 5%

Cement Type Resistor (wire wound)

Characteristics

Specifications

Test Method

DC Resistance JIS-C-5202 5.1

J ± 5%

AT 25° C

Dielectric withstanding voltage JIS-C-5202 5.7

No evidence of flashover mechanical amage, arcing or insulation breakdown.

Resistance shall be clamped with a conductive material which conforms to resistors surface so that 90 o of the outer periphery is contacted a potential of 1000V AC shall be applied for 60 seconds.

Insulation Resistance JIS-C-5202 5.6

1000MΩ         MIN

Withstanding test and shall be measured at DC 500V. Resistor shall be prepared AC same method of dielectric.

Thermal Shock

Δ R≤ ± (2%R0+0.1Ω )

After application of rated power for 30 minutes, 30 minutes exposure to -30± 5° C ambient temperature.

Humidity JIS-C-5202 7.5

Δ R≤ ± (2%R0+0.1Ω )

Temperature resistance change after 1000 hours exposure in a humidity test chamber controlled at 40± 2° C and 90~95% relative humidity.

Cement Type Resistor (metal oxide film)

Short time overload

Δ R≤ ± (2%R0+0.05Ω )

Temperature resistance change after the application of a potential of 2.5 times RCVW for 5 seconds.

Load Life JIS-C-5202 7.10

Δ R≤ ± (5%R0+0.1Ω )

Permanent resistance change after 1000 hours operating at RCWV, with duty cycle of 1.5 hours on and 0.5 hours off at 25° C± 2° C.

Load Life in Humidity JIS-C-5202 7.9

Δ R≤ ± (5%R0+0.1Ω )

Temperature resistance change after 1000 hours(1.5hours on and 0.5 hours off) at RCVW in a humidity chamber controlled at 40± 2° C and 90~95% relative humidity.

Solderability JIS-C-5202 6.5

95% coverage MIN

Test temperature of solder: 230± 5° C Dwell time in solder: 3± 0.5 SEC

Nonflammability

Nonflammable

Load 5 min according to 5times, 10 times, 16 times rated power and A. C. respectively.

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