SPS(RX27‑1) Cement Resistor | Radial Wirewound Power Resistor | Guangdong Qingda Electronic
Meta Description： SPS series RX27‑1 radial cement resistor manufactured by Guangdong Qingda Electronic. Vertical through‑hole ceramic cement encapsulated wire‑wound resistor 2W‑50W, flame‑proof, high insulation, RoHS compliant. For load, discharge, current‑limiting circuits, custom specifications available.
Meta Keywords： SPS cement resistor, RX27‑1 cement resistor, radial cement wirewound resistor, vertical cement resistor, dip power resistor, load discharge resistorPage H1
SPS Series Cement Resistor (RX27‑1)
Manufacturer: Guangdong Qingda Electronic Technology Co., Ltd
Product Overview（H2）
SPS series also known as RX27‑1 are radial‑lead vertical cement‑encapsulated wire‑wound power resistors produced by Guangdong Qingda Electronic Technology Co., Ltd. The resistive winding is housed in flame‑retardant ceramic housing and sealed with high‑temperature inorganic cement compound.
Thanks to reliable insulation, excellent heat dissipation, anti‑vibration and moisture‑proof performance, SPS(RX27‑1) cement resistors are widely used for dummy load, discharge, current‑limiting and shunt circuits in power supplies, audio equipment, frequency converters, household appliances and industrial control devices. All products meet RoHS lead‑free requirements, OEM & ODM custom specifications are supported.
Key Features（H2）
- Radial vertical through‑hole design for PCB mounting
- Flame‑proof ceramic shell with inorganic cement encapsulation, non‑flammable
- Anti‑vibration, moisture‑proof, outstanding heat‑resistant performance
- Low temperature coefficient, low noise, stable resistance under heavy‑load
- High dielectric strength and superior insulation property
- Wide operating temperature: ‑55 °C ~ +275 °C
- Standard tolerance: ±1%, ±2%, ±5%, ±10%
- Resistance range: 0.1Ω ~ 500KΩ
- Rated power: 2W, 3W, 5W, 7W, 10W, 15W, 20W, 25W, 30W, 50W
- Tinned copper radial leads for stable soldering
- RoHS‑compliant, lead‑free construction
- Custom resistance value, marking and dimension available upon request
Internal Construction（H2）
Resistance alloy wire is wound on high‑heat‑resistant ceramic core, assembled into rigid ceramic case, then fully filled and sealed by thermostable inorganic cement. For high‑ohm versions, metal‑oxide film elements replace wire‑wound core to achieve higher resistance values. Tinned copper radial pins guarantee reliable through‑hole soldering performance.
Typical Applications（H2）
Power supply units, audio amplifiers, speaker divider networks, frequency converters, motor drives, household appliances, industrial control boards, inverter equipment, discharge circuits, dummy load banks, current‑limiting and voltage‑sampling circuits.
Part Number Coding Example（H2）
SPS‑10W‑10RJ- SPS = Series Code
- 10W = Rated Power
- 10R = Nominal Resistance Value
- J = Tolerance ±5%
Contact Guangdong Qingda Electronic Technology Co., Ltd for datasheet, sample testing, bulk quotation and custom resistor solutions.