Ceramic Encased Wire Wound Resistor

Ceramic Encased Wire Wound Resistor
Ceramic Encased Wire Wound Resistor
Ceramic Encased Wire Wound Resistor
Ceramic Encased Wire Wound Resistor
Ceramic Encased Wire Wound Resistor
Ceramic Encased Wire Wound Resistor
Ceramic Encased Wire Wound Resistor
Ceramic Encased Wire Wound Resistor
Ceramic Encased Wire Wound Resistor
Ceramic Encased Wire Wound Resistor
Ceramic Encased Wire Wound Resistor
Ceramic Encased Wire Wound Resistor
Ceramic Encased Wire Wound Resistor
Ceramic Encased Wire Wound Resistor
Ceramic Encased Wire Wound Resistor
Ceramic Encased Wire Wound Resistor
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Southern Group supplied wire wound resistor adopts ceramic casing, featuring outstanding insulating property. Besides, it helps to enhance the heat dissipation performance of the resistor due to the low-temperature property of the ceramic surface under high temperature condition.

Southern Group provides different powers of wire wound resistors, including 2W, 7W, 10W, etc. In addition, special designs of size, resistance, power and shape are also available based on clients’ requirements.

R27 Ceramic Encased Wire Wound Resistor Property
Item Test Method Requirement
Resistance Series, Tolerance E24 ±5% ±10%
Dielectric Strength AC1500V: 1minute AC1500V1 minute No flashover or insulation breakdown
Solder Ability 265 ±5℃, 2s+0.5s, immersion height: 1.5~2.0mm 265 ±5℃, 2s+0.5s, 1.5~2.0mm △R≤ ± (1%R+0.05Ω ) No visible damage. Area covered with new solder: >95%.
Terminal Strength Axial tension: 20N for 10s±1s 20N: 10s±1s △R≤ ± (1%R+0.05Ω) No visible damage
Short Time Overload 10x Rated power: 5s 10x Rated power for 5s △R≤ ± (1%R+0.05Ω) No visible damage
Temp.Coefficient of Resistor ≤±250PPM/℃
Resistance to Soldering Heat 360℃±10℃, immersion height: 3~3.5mm 350℃±10℃ 3~3.5mm △R≤± (1%R+0.05Ω ) No visible damage
Vibration Min{10-500HZ and 0.75mm, 98m/s²}; x, y, z: totally 6h Min{10-500HZ and 0.75mm, 98m/s²}; x, y, z: totally 6h △R≤± (1%R+0.05Ω ) No visible damage
Load Life 1.5h on and 0.5h off: 1000h 1.5h on and 0.5h off: 1000h △R≤± (5%R+0.1 Ω ) R≥1GΩ
Moisture Resistance 40℃ and RH=90-95%: 96h 40℃ and RH 90-95%: 96h △R≤± (5%R+0.1 Ω ) R≥100MΩ
Temperature Rise △T≤250℃
Derating Curve
Optional Types
  • RX27-1
  • RX27-1
  • RX27-2
  • RX27-2
Type Rated Power (W) Resistance Range (Ω) Dimensions (mm)
A/B C Φ h
RX27-1-2 RX27-2-2 2 0.15-200 6.4 ±1 17.5±1.2 0.8 1.5
RX27-1-3 RX27-2-3 3 0.20-390 8.0±1 22.0±1.5 0.8 1.5
RX27-1-5 RX27-2-5 5 0.24-680 9.5 ±1 22.0±1.5 0.8 1.5
RX27-1-7 RX27-2-7 7 0.33-500 9.5 ±1 35.0±1.5 0.8 3.0
RX27-1-10 RX27-2-10 10 0.51-2000 9.5 ±1 48.0±1.5 0.8 3.0
RX27-1-15 15 1.00-2400 12.5±1.2 48.0±1.5 1.0
RX27-1-20 20 1.00-3000 12.5±1.2 63.5 ±2.0 1.0
RX27-1V
Type Rated Power (W) Resistance Range (Ω) Dimensions (mm)
L1 L2 L3 L4 H1 H2 t
RX27-1V-7 7 0.33-1500 47±2.0 8 4 5 1.5 11 0.5
RX27-1V-10 10 0.51-2000 60±2.5 8 4 5 1.5 11 0.5
RX27-1V-15 15 1.00-2400 61.5± 2.5 9 4.5 6.5 2.5 14 0.5
RX27-1V-20 20 1.00-3000 77.0 ±3.0 9 4.5 6.5 2.5 14 0.55
RX27-3A
Type Rated Power (W) Resistance Range (Ω) Dimensions (mm)
L I B1/H1 82 B3 B4 H2 H3
RX27-3A-3 3 0.20-390 24 ±1 12.5 9.0 ±1 5 1.4 1.6 10 23.5
RX27-3A-5 5 0.24-680 27 ±1 15 9.5 ±1 5 1.4 1.6 10 24
RX27-3A-7 7 0.33-500 35±1.5 22.5 9.5 ±1 5 1.4 1.6 10 24
RX27-3A-10 10 0.51-2000 48 ±1.5 35 9.5 ±1 5 1.4 1.6 10 24
RX27-3A-15 15 1.00-2400 48 ±1.5 32.5 12.5±1 10 2.7 3.0 17 34.6
RX27-3A-20 20 1.00-3000 63±1.5 50.0 12.5±1 10 2.7 3.0 17 34.6
RX27-3B
Type Rated Power (W) Resistance Range (Ω) Dimensions (mm)
L I
RX27-38-5 5 0.24-680 27±1.5 15±2
RX27-3B-7 7 0.33-1200 35±1.5 22.5±2
RX27-38-10 10 0.51-1800 48±1.5 35±2
RX27-3B-15 15 1.0-2200 48 ±1.5 32.5±2
RX27-38-20 20 1.0-2700 63.5±1.5 55±2
RX27-3C
Type Rated Power (W) Resistance Range (Ω) Dimensions (mm)
L I
RX27-3C-15 15 1.0-2200 48.0±1.5 32.5±1.0
RX27-3C-20 20 1.0-2700 63.5±1.5 50.0±1.0
RX27-4
Type Rated Power (W) Resistance Range (Ω) Dimension (mm)
L1 L2 L3 B1-H1 B2 H3 H4 P1 E T1 dl
RX27-4-10 10 0.51-2000 48.0 ±1.0 25±1.0 4.5 9.5±1.0 5 16.5 +0.5 -1.0 0.8 2.5 33.0-2 0.4 2.0
RX27-4-15 15 1.00-2400 48.0 ±1.0 25±1.0 7.0 12.5±12 6 21.0 +2.0 -1.0 1.0 3.0 34.0-2 0.5 2.0
RX27-4-20 20 1.00-3000 63.5 ±1.0 25±1.0 7.0 12.5±12 6 21.0 +2.0 -1.0 1.0 3.0 49.5-3 O.5 2.5
RX27-4-25 25 1.20-3600 63.5±1.0 25±1.0 8.0 16.0±12 7.5 29.0 +3.0 -1.5 1.0 3.5 46.5-3 O.5 3.0
RX27-4-30 30 1.50-4300 75.0±1.2 40±1.2 10.0 19.0±15 7.5 30.0 +3.0 -1.5 1.0 3.5 56.0-4 O.5 3.0
RX27-4-40 40 1.80-5600 90.0±2.5 40±2.5 10.0 19.0±15 7.5 30.0 +3.0 -1.5 1.0 3.5 71.0-4 O.5 3.0
RX27-4HS / RX27-4HV
Type Rated Power (W) Resistance Range (Ω) Dimensions (mm)
L1 D1 Φd B1 -H1
RX27-4 HSHV-10 10 0.51-2000 48.0±1.0 25±1.0 4.5 9.5±1.0
RX27-4 HSHV -15 15 0.51-2400 48.0±1.0 25±1.0 4.0 12.5±1.2
RX27-4 HSHV -20 20 1.00-3000 63.5±1.0 25±1.0 4.0 12.5±1.2
RX27-4 HSHV -25 25 1.20-3600 63.5±1.0 25±1.0 4.0 16.0±1.2
RX27-4 HSHV -30 30 1.50-4300 75.0±1.0 40±1.2 4.0 19.0±1.2
RX27-4 HSHV -40 40 1.80-5600 90.0 ±2.5 40±2.5 4.0 19.0±1.5
RX27-4HW

Rated power: 100W
Resistance range: (1Ω~20KΩ)
Resistance tolerance: ±5%;±10%

RX27-4HL

Rated power: 5W-20W
Resistance range: (0.5Ω~200K)
Resistance tolerance: ±5%-±10%

RX27-4T

Rated power: 10W-20W
Resistance range: (2Ω~51KΩ)
Resistance tolerance: ±5%;±10%

RGG(RX27-5)
Type Rated Power (W) Resistance Range (Ω) Dimensions (mm)
A B C E D
RGG2 2 0.22-270 11 ±1 7±1 20±1 5 ±1 0.8
RGG3 3 0.27-680 12 ±1 8±1 25±1 5 ±1 0.8
RGG5 5 0.27-680 13 ±1 9±1 26±1 5 ±1 0.8
RGG7 7 0.68-1200 13 ±1.5 9±1 38.5±1.5 5 ±1 0.8
RGG10 10 1.0-1800 16±1.5 13±1 35±1.5 7.5 ±1 0.8
RGG20 20 0.2-2000 20±1.5 9±1 50 ±1.5 10 ±1 0.8
RGCW(RX27-7)
Type Rated Power (W) Resistance Range (Ω) Dimensions (mm)
A B C F
R6CW2 2 1.0-50 6±1 15±1 10±1 9±1
RGCW3 3 1.0-50 6±1 15±1 13±1 9±1
RQCW5 5 1.0-100 6±1 15±1 18 ±1 9±1
RGCW(RX27-6)
Type Rated Power (W) Resistance Range(Ω) Dimensions (mm)
A B C D F
RGC22 2+2 (0.1-1) x2 5±0.5 9±1 26±1 13 20±1
RGC33 3+3 (0.1-1) x2 5±0.5 13±1 26±1 13 20±1
RGC55 5+5 (0.1-1) x2 6±0.5 17±1 26±1 13 20±1
Type Rated Power (W) Resistance Range(Ω) Dimensions (mm)
A B C D F
RGC2 2 0.1-1 5±0.5 9 ±1 14±1 13 9±1
RGC3 3 0.1-1 5±0.5 13±1 14±1 13 9±1
RGC5 5 0.1-1 5±0.5 17±1 14±1 13 9±1
RGC10 10 0.1-1 5 ±0.5 17±1 26±1 13 20±1
RX27-8

Rated Power: 80W
Resistance Range: (2Ω~100KΩ)
Resistance Tolerance: ±5%-±10%

RX27-8-80WA

Rated power: 80W
Resistance: 1.4Ω±5%

RX27-Z

Rated Power: 15W
Resistance Range: (1Ω~24KΩ)
Resistance Tolerance: ±5%-±10%

RX27-8B

Rated power: 50W
Resistance Range: 1Ω~200KΩ
Resistance Tolerance: ±5%-±10%

RX27-O
Performance Parameters
NO. Item Test Method Characteristics
1. Rated Power 5W
2. Operating Temperature -55℃>-275℃
3 Temperature Coefficient ≤±500PPM/℃
4. Resistance Tolerance ±1%,±5%,±10%
5 Short Time Overload 2.5x rated power: 5 seconds △R±(0.5%R+0.05Ω )
6 Dielectric Strength 1500VAC: 60Sec. (Terminal parallel to resistor Body) △R±(0.5%R+0.05Ω ) No mechanical damage, flashover or insulation breakdown.
7 Load Life 25℃, rated power: 1000h (1.5h-on and 0.5h off mode) △R±(1%R+0.05Ω ) No mechanical damage.
8 Load Life to Humidity 40℃±2 , 90-95%RH: 96h △R±(1.5%R+0.05Ω ) No mechanical damage.

Derating Curve

Shown above are some of our wire wound resistors with wide range of specifications for selection. Seen below are other types of resistors we provide. Our company is a leading passive electronic component manufacturer, and we have thousands of coil winding machines for the production of resistors, inductors and transformers. If you have special demands for electronic components, please let us know your needs and we can provide custom made products for you.

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