Rx27 Ceramic Variable Cement Power Wirewound Resistor

PRIMARY PARAMETERS

Model NO.

RX27

Function for Resistance

Protective Resistor

Material

Wire-wound Resistor

Type

Photoresistor

Shape

Square

Brand

Liwang

Environmental Certification

ISO14000

Safety Certification

CQC 03003095~3097

Trademark

Liwang

Specification

ISO14000, ISO9001

HS Code

8533400000

Resistance

Fixed Resistor

Installation

DIP Resistor

Packaging

Surface Mount

Quantity

Single Connection

Application

Audio

Productor Name

Rx27 Ceramic Variable Resistor/Cement Power Resist

Quality Certification

ISO9001

Other Certification

RoHS

Transport Package

Box

Origin

Changzhou Jiangsu China(Mainland)

DETAIL DESCRIPTION

Product description of Rx27 Ceramic Variable Resistor/Cement Power Wirewound 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
Rx27 Ceramic Variable Cement Power Wirewound Resistor

Rx27 Ceramic Variable Cement Power Wirewound Resistor

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.