Power Resistor 5W 1.8kΩ
Cement-type 5 W, 1.8 kΩ power resistor ceramic core, metal-oxide/wire element, UL-94V-0 silicon fill, tinned leads; rated 5 W with derating above 70 °C.
4.00 EGP
Buy NowPower Resistor 5W 1.8kΩ
The 5 W, 1.8 kΩ power resistor is a cement-type (ceramic-cased) fixed resistor manufactured with a robust ceramic core and a resistor element of either metal-oxide film or wire-wound construction. Its body is filled/sealed with silicon cement (UL-94V-0 compliant) and terminated with tinned iron caps and tinned lead wires, producing a compact, heat-resistant package designed for steady power dissipation.
At its 5 W rating the resistor is intended for continuous operation within the rated ambient (derating applies above 70 °C); it exhibits defined temperature coefficients (metal-oxide ≈ ±350 ppm/°C; wire element ≈ ±260 ppm/°C) and is built to tolerate short-time overloads and pulse stresses within the limits shown in the spec table. The rated voltage is calculated from √(P×R), giving about 94.87 V for 5 W × 1.8 kΩ.
The resistor is specified to meet JIS C 5202-based tests: insulation resistance, solderability, resistance to soldering heat, temperature cycling, humidity load life and 1,000-hour load-life tests at elevated temperature all demonstrating stable resistance change limits (typical post-test change limits listed in the sheet). These traits make it a rugged passive element for circuits requiring predictable dissipation and long-term stability.
Features:
- Cement (ceramic) body with high-alumina ceramic core.
- Resistor element available as metal-oxide film or wire-wound.
- Silicon resin (silicon cement) fill UL-94V-0 non-flammable.
- Tinned iron end caps and tinned/solderable leads (welded connection).
- RoHS/environmental substance compliance noted for the series.
- Built for continuous 5 W operation at specified ambient with derating above 70 °C.
- Designed to pass JIS C 5202 reliability tests (solder heat, humidity load life, temperature cycling).
Specifications:
| Parameter | Value |
|---|---|
| Product type: | Cement (ceramic) power resistor. |
| Rated power: | 5 W |
| Nominal resistance: | 1.8 kΩ (1,800 Ω) |
| Rated voltage (E = √(P×R)): | ≈ 94.87 V (√(5 × 1800) = 94.8683 V) |
| Maximum working voltage (5 W row, Table-1): | 750 V |
| Maximum overload voltage (5 W, Table-1): | 1,500 V |
| Dielectric withstanding voltage: | 1,000 V (AC test value shown in Table-1) |
| Temperature coefficient: | Metal-oxide: ±350 ppm/°C; Resistor wire: ±260 ppm/°C |
| Resistance tolerance options: | K (±10%), J (±5%), G (±2%) |
| Insulation resistance: | ≥ 10^3 MΩ |
| Solderability / solder heat resistance: | Solderability ≥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, 5 W): | L 22±1.5 mm × W 9.5±1.0 mm × H 9.5±1.0 mm; lead dia Φ 0.68 mm |
Pinout Diagram:
Footprint Diagram:
Applications:
- Power Supply Inrush Current Limiting.
- LED Driver Current Regulation.
- Audio Amplifier Load Dummy Load.
- Voltage Divider for High Power Circuits.
- Snubber Network for Surge Suppression.
- Motor Control Dynamic Braking.
- Heat Generation in Temperature Controlled Systems.
- Test Equipment as a Calibration Load.
- Bleeder Resistor for Capacitor Discharge.
- Power Dissipation in Voltage Reference Circuits.
Package Contents:
- 1x Power Resistor 5W 1.8kΩ
| Weight | 30 g |
|---|---|
| Dimensions | 10 × 10 × 20 mm |
Only logged in customers who have purchased this product may leave a review.
Reviews
There are no reviews yet.