RXG21 (A/B/C/D) lightning surge-resistant wirewound resistors
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RXG21 (A/B/C/D) lightning surge-resistant wirewound resistors

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RXG21 (A/B/C/D) lightning surge-resistant wirewound resistors

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Product Features

  • Good anti - inrush current performance and strong overload resistance.

  • The resistor fuses instantaneously in case of a short - circuit.

  • Encapsulated in a ceramic shell, ensuring good safety performance.

  • Ceramic encased, excellent surge - proof, and good safety performance.

  • Resistance fusing instantly when short circuit occurs.

  • Ceramic package is safe and reliable.

Applications

  • Energy - saving lamps

  • Battery chargers

  • Switching power supplies

Dimensions (mm)

TypeLmaxWmaxDPHΦd
RXG21 - A - 1W10.510.55.0 ± 0.55.0 ± 0.83.6 ± 0.50.7 ± 0.05
RXG21 - B - 1W13.06.05.0 ± 0.55.0 ± 0.83.6 ± 0.50.7 ± 0.05
RXG21 - C - 1W11.58.55.0 ± 0.55.0 ± 0.83.6 ± 0.50.6 ± 0.05
RXG21 - D - 1W12.55.75.0 ± 0.517.5 ± 0.56.5 ± 0.50.7 ± 0.05
RXG21 - D - 2W19.57.56.5 ± 120.7 ± 0.56.5 ± 0.50.8 ± 0.05

Shockproof Property

As shown in the figure, close the air switch K, disconnect K2, and turn K1 on and off repeatedly 30 times. The resistor does not open - circuit.

Short Circuit Fusing Characteristic

Connect the experimental resistor directly to a 230VAC power supply. The experimental resistor should fuse immediately, and there should be no explosion or fire - starting phenomenon when fusing.

Surge Proof Characteristic

Connect the experimental resistor to a suitable battery charger. Apply a voltage of 1000V - 3000V to the battery charger according to the requirements of the IEC - 61000 - 4 - 5 test standard (as required by the charger). After the experiment, the experimental resistor should not open - circuit.

Technical Specifications

TypeRated PowerResistance Ranges (Ω)TolerancesRating Ambient TempOperating Temp Range
RXG21 - A - 1W1W0.47Ω - 51Ω± 5% ± 10%70°C- 55°C - 155°C
RXG21 - B - 1W1W0.47Ω - 51Ω


RXG21 - C - 1W1W0.47Ω - 51Ω


RXG21 - D - 1W1W0.47Ω - 51Ω


RXG21 - D - 2W2W1Ω - 100Ω


Performance

Test ItemSpecificationsTest Method
Short - time overloadΔR ≤ ± (2%R + 0.05Ω)10VR, 5S
Rapid change of temperatureΔR ≤ ± (1%R + 0.05Ω)- 55°C/275°C, 30min, 5 cycles
LeachingΔR ≤ ± (1%R + 0.05Ω)350 ± 10°C, 3.5 ± 0.5S
Climatic categoryΔR ≤ ± (5%R + 0.05Ω)275°C, 16h/55°C, RH93 ± 3%, 24h/ - 55°C, 2h/8.5kpa, 15 - 35°C, 1h
Endurance at 70°CΔR ≤ ± (5%R + 0.1Ω)70 ± 2°C, PR, 1000h


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