Power resistance and resistance box system solution providerManufacture of national brands of power resistors and resistor boxes

Brand

1. Product features:

1) Power level: 30W

2) It has strong impact resistance, can work for a long time without great change of resistance value, and has high consistency of products.

2. Product structure:

1) Through the professional capping or pressing equipment, the cap with copper pin is closely combined with the resistance porcelain body to ensure the stability of the resistance.

2) The resistance matrix ceramic is made of alumina or talc, which ensures good stability and heat dissipation.

3) The surface of the substrate is wrapped with metal alloy wire, and then sealed with non combustible paint, which has the characteristics of small volume, good heat resistance, small temperature coefficient, high resistance precision, excellent short-time overload performance, no change of resistance value over the years, etc. Specifications and sizes can be designed and manufactured according to customer requirements.

4) According to customer's requirements, we can make horizontal installation, vertical installation or molding vertical installation.

5) Printed identification corresponding specifications, non-woven tape bulk packaging.

6) We can process all kinds of non-standard sizes, specifications and parameters according to customers' requirements.

3. Application fields:

Power supply, frequency converter, audio, frequency divider, household appliances, circuit board

Test item

Test condition

Specifications

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

±350PPM/℃ Max

Power rating load

JIS-C-5202 5-4 40℃,power rating 1H

△R≤±(1%+0.1Ω)Surface temperature up ≤350℃ MAX

Short-term overload

JIS-C-5202 5-5, 1000% rated power 5 seconds

Free or appearance or structural irregularity 

△R≤±(2%+0.1Ω)

Insulation resistance

JIS-C-5202 5-6 1000V DC

100 MΩ Min

Dielectric withstanding voltage

JIS-C-5202 5-7, 2000V DC 1 minute

Free or appearance or structural irregularity 

△R/R≤±(0.1%+0.05Ω)

Terminal strength

JIS-C-5202 6-1 ASZ 8kg 30s, ASCB / ASC 5kg 10s

Free of appearance or structural irregularity

Vibration

JIS-C-5202 6-3 1.5mm,10-50-10Hz/min X-Y-Z 2 hours each

Free or appearance or structural irregularity
Surface coating crack△R≤±(1%+0.05Ω)

Thermal shock

JIS-C-5202 7-3 Room temp 30 minutes
ON-55℃ 15 minutes OFF

Resistor free of structural irregularity crack
of silicon cement surface △R≤±(2%+0.1Ω)

 Humidity

JIS-C-5202 7-5, 40℃ 90%RH 240H

Free or appearance or structural irregularity
Surface coating crack ΔR/R≤±(3%+0.1Ω)

 Load life

JIS-C-5202 7-10, 90Min ON-30Minutes OFF 500H

Free of appearance or structural irregularity
Discoloration of marking △R≤±(3%+0.1Ω)