Power Resistor 30W 16Ω

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Power Resistor 30W 16Ω The 30 W, 16 Ω cement-type power resistor is built around a high-alumina ceramic core with a resistor element of either metal-oxide film or resistance wire, encapsulated in a ceramic case and sealed with silicon resin (silicon cement) to provide mechanical protection and flame retardance (meets UL-94V-0). Termination is made with tinned iron caps and solderable/tinned lead wires welded to the caps, producing a compact heavy-duty package suited to dissipating significant heat. Rated at 30 W, the resistor’s rated voltage is defined by E = √P*R (for 30 W × 16 Ω this is ≈ 21.91 V), and the part is specified for continuous operation at the rated ambient for its class (for 15 W and above the rated ambient is 25 °C; derating applies above that per the power-derating curve). It is designed to tolerate short-time overloads and pulse stresses according to the JIS-based test limits in the sheet. The resistor meets the document’s JIS-C test battery: solderability and solder-heat resistance, temperature cycling, insulation and dielectric tests, humidity load life (40±2 °C, 90–95% RH, 1000 h) and load life (70±3 °C, 1000 h). Resistance change limits and short-time overload/pulse limits are stated in the spec, demonstrating suitability where predictable long-term stability is required. Features: Cement-coated ceramic housing with high-alumina core. Metal-oxide film or resistance wire element. Silicon cement sealing, UL-94V-0 flame resistant. Welded tinned iron end caps with solderable leads. Continuous 30 W power rating with derating curve. Designed to meet JIS C 5202 reliability tests. Specifications: Parameter Value Product type: Cement (ceramic) power resistor Rated power: 30 W Nominal resistance: 16 Ω Rated voltage (E = √(P×R)): ≈ 21.91 V Maximum working voltage: 1,000 V Maximum overload voltage: 1,500 V Dielectric withstanding voltage: 1,000 V Temperature coefficient: Metal-oxide: ±350 ppm/°C; Resistance wire: ±260 ppm/°C Resistance tolerance options: K (±10%), J (±5%), G (±2%) Insulation resistance: ≥ 10³ MΩ Solderability / solder heat resistance: ≥95% coverage; solder heat test 350±10 °C for 3±1 s Load life / humidity life tests: Load life: 70±3 °C, 1000 h; Humidity load life: 40±2 °C, 90–95% RH, 1000 h Typical external dims (CR-L style): L 75±2.0 mm × W 19±2.0 mm × H 17±2.0 mm; lead dia Φ 0.68 mm Pinout Diagram: Footprint Diagram: Applications: Power control circuits. Load testing and dummy loads. Industrial automation equipment. Audio and amplifier systems. Power supply and inverter circuits. Package Contents: 1x Power Resistor 30W 16Ω Datasheet