Power Resistors - AL Series: An aluminum encased consists of an alloy metal coil-type resistance
element assembled into an aluminum enclosure. Following high-temperature
anodization, the enclosure is filled with a special non-flammable
cement paste and after hardening, insulation is applied through
a high-temperature process. Since the component is embedded
in the heat-proof cement, it is not affected by external mechanical
force, dusty environments, and extreme duty. It is durable,
vibration-proof, dissipates heat well, and has a low temperature
coefficient, with resistance varying in direct proportion. Supporting
a flexible range of applications, the product is easy to utilize
and install. Applications include industrial machinery, load
testing, electric power distribution, instruments, and automated
control installations.
For custom specifications, please contact us to discuss the
details. |
|
| Test Item |
Test Mehods |
Characteristics |
| Resistance tolerance |
JIS-C-5202 5-1 |
Resistance Nominal Tolerance
1≤R 1>R ±5%(J) ±10%(K) |
| Temperature coefficient |
JIS-C-5202 5-2 |
±400PPM/°C MAX |
| Power rating load |
JIS-C-5202 5-4 |
ΔR/R≤ ±(0.5%+0.1Ω) Surface temperature up 350°C MAX |
| Short-term overload |
JIS-C-5202 5-5 1000% rated power 5 seconds |
Free of appearance or structural irregularity ΔR/R≤ ±(2%+0.1Ω) |
| Insulation resistance |
JIS-C-5202 5-6 1000VDC |
100MΩ min |
| Dielectric withstanding voltage |
JIS-C-5202 5-7 2000VDC 1 minute |
Free of appearance or structural irregularity ΔR/R≤ ±(0.1%+0.05Ω) |
| Terminal strength |
JIS-C-5202 6-1 8kg 30 seconds |
Free of appearance or structural irregularity |
| Resistor strength |
JIS-C-5202 6-2 30kg 30 seconds |
Free of appearance or structural irregularity |
| Vibration |
JIS-C-5202 6-3 1.5m/m 10 ~ 50 ~ 10 Hz/min X-Y-Z 2 hours each |
Free of appearance or structural irregularity Surface coating crack ΔR/R≤ ±(1%+0.05Ω) |
| Thermal shock |
JIS-C-5202 7-3 Room temp 30 minutes ON-55°C 15 minutes OFF |
Resistor free of structural irregularity ΔR/R≤±(2%+0.1Ω) |
| Humidity |
JIS-C-5202 7-5 40°C 90%RH 240 hours |
Free of appearance or structural irregularity Surface coating crack ΔR/R≤±(3%+0.1Ω) |
| Load life |
JIS-C-5202 7-10 90 minutes ON - 30 minutes OFF500 hours |
Free of appearance or structural irregularity Surface coating crack ΔR/R≤ ±(3%+0.1Ω) |
| Flame retardation |
JIS-C-5202 7-13-3-2 100% - 600% rated power load |
US UL-94 flame retardation test V-0 grade noncombustible |
| Remarks |
1. Resistance and resistance tolerance were tested in-house with micro resistance meter. 2. Resistor coating refers to UL-certified data provided by supplier |