RX20 Vitreous Enamelled Wirewound Resistors

RX20 Vitreous Enamelled Wirewound Resistors

Product Introduction

■ Product Features: Equipped with dedicated accessories (optional), easy to install. Excellent high-temperature load characteristics. Surface is enamel-coated, strong pollution resistance, moisture-resistant, chemically inert, and high-temperature resistant.

■ Application Field: Used in direct current or low-frequency alternating current circuits for voltage division, current division, and load purposes.

■ Product Standard: Q/RW384-1997 RX20(T) Power Wirewound Resistor detailed specifications.

■ Can provide non-inductive products (add "N" to the model number suffix) .

■ Capable of producing products that comply with RoHS, REACH, and three-proof requirements.

RX20 Outline drawing:

specifications and models

rated power(W)

resistance range(Ω)

Size ( m m )

L

L1

L2

D

d

H

H1

d1

t

B

B1

RX20-8W

8

5.1-3.3K

35±1.5

—

—

14±2

5.5±0.7

—

28.5±2.5

2

5

—

—

RX20-10W

10

5.1~10K

41±1.5

—

—

—

—

—

RX20-16W

16

5.1-15K

45±1.5

66±2

82±2

17±2

8±0.7

41±2

31±2.5

15

4.5

RX20-20W

20

5.1~20K

51±2

72±2

88±2.2

15

4.5

RX20-25W

25

10~24K

51±2

77±3

88±3

21±2.5

12±0.8

51.5±2

35±2.5

20

5.5

RX20-30W

30

10-30K

71±2.2

97±3

108±3

20

5.5

RX20-40W

40

20~51K

87±2.2

113±3

124±3

20

5.5

RX20-50W

50

20-51K

91±2

120±3

135±3

29±3

20±1.5

59±2

43±3

3.5

6

30

5.5

RX20-75W

75

24~56K

140±3.2

170±4

184±4

30

5.5

RX20-100W

100

24~62K

170±3.5

200±4

214±4

30

5.5

RX20-150W

150

20-91K

215±4

244±4

259±4

30

5.5

Key Test Items:

Test Items	Test Conditions	Performance Requirements	Test Standards
Insulation Resistance	Voltage: (500±50)Vdc, 1min, wrap-foil method	≥20MΩ/cm²	GB/T 5729-1994 Section 4.6
Voltage Withstand	Voltage: 2000Vdc, 1min, between lead-out terminal and copper foil inside ceramic tube	No breakdown, no arcing	GB/T 5729-1994 Section 4.7
Overload	10 times rated power load for 5s	△R ≤ ±(2%R + 0.1Ω)	GB/T 5732-1985 Section 2.3.4
Temperature Rise	Ambient Temperature: (15 to 35)℃, rated power	≤325℃	GB/T 5729-1994 Section 4.14
Resistor Body Strength	Load: ≤40W; 30N, ≥50W; 100N	△R ≤ ±(1%R + 0.05Ω)	GB/T 5729-1994 Section 4.15
Lead Strength	Tensile Strength: 20N, 10s	△R ≤ ±(1%R + 0.05Ω)	GB/T 2423.29-1982
Solderability	HISnPb39, 75W soldering iron method, tinning method	Evenly tinned	GB/T 2423.28-1982
Temperature Rapid Change	Temperature Range: (-55 to +200)℃, 5 cycles	△R ≤ ±(2%R + 0.1Ω)	GB/T 2423.22-1981
Impact	Frequency: (40 to 80) cycles/min, acceleration: 245m/s², 2000 cycles	△R ≤ ±(1%R + 0.05Ω)	GB/T 2423.06-1981
Vibration	Frequency: (10 to 500)Hz, amplitude 0.75mm or acceleration 98m/s², 1h	△R ≤ ±(1%R + 0.05Ω)	GB/T 2423.10-1981
Steady-state Damp Heat	Temperature: (40±2)℃, relative humidity: (93±3)%, 96h	△R ≤ ±(2%R + 0.1Ω)	GB/T 2423.03-1993
Room Temperature Durability	Ambient Temperature: (15 to 35)℃, rated power, 1.5h powered; 0.5h unpowered, 1000h	△R ≤ ±(5%R + 0.1Ω)	GB/T 5729-1994 Section 4.25

Power dissipation curve:

Temperature rise curve:

Ordering Example:

Model Number :RX20

Rated Power:20W

Nominal Resistance:10Ω

Resistance Tolerance:±5%

With attachments

Quantity:1000 pieces

Product Tags:

RX20 wirewound resistance

      

20W wirewound resistance

      

20W ww resistor

      

RX20 Vitreous Enamelled Wirewound Resistors Images