Products

RST Electric introduces the Non-inductive Metal Plate Resistor – a high-performance, low-inductance power resistor designed for demanding applications requiring minimal phase shift and rapid response. Featuring a metal plate element encapsulated in a flame-retardant ceramic housing, this Non-inductive Resistor delivers excellent pulse handling, low resistance values (from 0.01Ω), and stable performance across a wide temperature range. With power ratings from 2W to 7W (single-element) and combined configurations (2+2, 3+3, 5+5, 7+7), it suits current sensing, snubber circuits, high-frequency inverters, and power amplifier applications. Available in tolerances from ±1% to ±10% with a low temperature coefficient (≤ ±250 ppm/°C), this Metal Plate Power Resistor meets rigorous performance standards including solderability, dielectric withstand, vibration, and endurance testing.

RST Electric's Ceramic Heating Element For Home Fragrance Warmer is specially designed for household fragrance warmers, essential oil diffusers, and car fragrance equipment. We use high-purity ceramic cores with precisely wound resistance wires inside, which can provide a gentle and stable heat ranging from 80℃ to 165℃. This allows for the gentle release of fragrance oils without burning or degradation. The power range is 3W to 20W, and the voltage options include 100-120V AC, 220-240V AC, 12V DC, and 5V USB. The ceramic/ceramic shell is durable, with a resistance tolerance of ±5%, ensuring energy efficiency, safety, and aesthetics, and is suitable for various modern health and lifestyle products.

RST Electric presents Open Air Current Sensing Resistor – a high-precision, low-ohmic resistor engineered for accurate current measurement in space-constrained applications. Featuring a metal alloy element with an open-air vertical construction, this Current Sensing Resistor delivers extremely low resistance (from 5mΩ to 100mΩ), minimal inductance, and excellent thermal dissipation. With power ratings of 1W, 3W, and 5W, and tolerances as tight as ±1%, it is ideal for inverter circuits, power supplies, motor controls, and battery management systems. The radial lead design elevates the element above the PCB, maximizing airflow and keeping heat away from sensitive board components. Available in constantan or nichrome materials with a low temperature coefficient (40 ppm/°C), this Metal Element Resistor ensures stable, repeatable performance across a wide operating range. 

RST Electric presents the Metal Alloy Current Sense Resistor – a high-precision, ultra-low-ohm resistor engineered for accurate current measurement in space-constrained power circuits. Featuring a metal alloy element with a vertical radial-lead package, this Current Sense Resistor delivers extremely low resistance values (from 2mΩ to 50mΩ), minimal inductance, and outstanding thermal stability. With current ratings from 2.5A to 21A and tight tolerances as low as ±1%, it is ideal for battery management systems (BMS), motor controls, power supplies, and inverter circuits. The low temperature coefficient (down to ±50 ppm/°C) ensures stable performance across a wide operating temperature range (-55°C to +85°C), while the compact vertical footprint saves valuable PCB real estate.

RST Electric presents the Current Sensing Resistor – a precision, ultra-low-ohm resistor engineered for accurate current measurement in compact electronic systems. Featuring a metal alloy element in a thin vertical package, this Metal Element Resistor delivers extremely low resistance values (from 3mΩ to 100mΩ) with a low temperature coefficient (as low as ±50 ppm/°C) and minimal inductance. Available in 1W, 2W, and 3W power ratings, it is ideal for battery-powered devices, portable instrumentation, power management ICs, and low-power motor controls. The slim profile (4.5mm body height) and flexible lead spacing (10mm–25mm) allow easy integration into space-constrained PCB layouts, while tight tolerances (down to ±1%) ensure measurement accuracy. 

RST Electric presents Low Resistance Shunt – a precision, high-current current sensing solution designed for demanding automotive, industrial, and renewable energy applications. Utilizing vacuum electron beam welding technology with pure copper electrodes, this Current Shunt delivers exceptional stability, high pulse withstand capability, and ultra-low resistance values from 0.1mΩ to 0.667mΩ. With power ratings up to 15W and tolerances as tight as ±0.5%, it is ideal for battery management systems (BMS), motor drives, inverters, and high-frequency power conversion. The all-metal construction features a pickled and passivated surface for superior corrosion resistance and weatherability, while ultra-low inductance (<5nH) and minimal thermal EMF ensure accurate measurement in fast-switching circuits. Fully compliant with RoHS and Reach, this High Precision Shunt is available in multiple form factors with custom specifications supported.