250W 50ohm CT1 RIG21 high power resistor

Specifications

Some parts of our certificates

Advantage of choosing our company and products:

1. Sichuan qixing electronic co. ltd. is a technical factory of mainly manufacturing and develop high power resistor,wire-wound potentiometer,metal glass glaze potentiometer,carbon film potentiometer,precision parts and AC power noise filter.

2. The established maxim of our company is technical innovation, keeping improvement and meet customer demands.

3. Rich and varied goods is your selection guide. High quality is absolutely the credibility of the guarantee. Reasonable price is your final choice.

4. Our products is also used in the field of the military industry .Our factory are continuing to offer a great deal of qualified goods in the field of the military industry .

Function of potentiometer:

A potentiometer is a manually adjustable electrical resistor that uses three terminals. It is a simple electro-mechanical transducer. It converts rotary or linear motion from the operator into a change of resistance, and this change is used to control the levels of output. It is sometimes known as POTS.Potentiometer is an adjustable electronic components,which plays main roles in the circuit on the following several aspects 

1.As a voltage divider:Potentiometer is a continuously adjustable resistor. When potetiometer’s stem or sliding handle move on the resistor body, the output of the potentiometer can be obtained output of voltage with certain related to the potentiometer applied voltage and movable arm or travel .

2.As a variable resistor :When potentiometer is used as a rheostat, it should be taken into two end devices.Thus within the limited travel range of potentiometer,which can be gotten smooth, continuously changable resistance value.

3.As the current controller :Potentiometer is used as the current controller, one of the designate current output must be sliding contact terminal.

4.Application of potentiometers 

•Linear displacement measurement

•Rotary displacement measurement

•Volume control

•Brightness control

•Liquid level measurements using floats

Our Partners

CHANGHONG

TAIWAN KEZHENGXIN ELECTRONICS CO.

XI’AN HONGXING ELECTRONICS CO.

JIALING MOTORCYCLE

KLS  ELECTRONIC CO., LTD.

The Scope of Potentiometer 

Workflow

•Products of special resistance and specifications are provided.

•Products of special standing wave ratio should be given a clear indication in contracts.

•Special requirements of standing wave ration is tested and chosen only for products of 50Ω.

•Products are corresponded to the standard of GB/T5729-94.

•Any special requirement is appreciated.

Electrical Characteristics

Range of nominal resistance: 1 ~500Ω

Frequency range: 0~2GHz

Insulation resistance: ≥ 1GΩ

Resistance tolerance: ±5%

Standing wave ratio: 1.2~1.3

Withstand voltage: 500V/1 mm (Substrate thickness)

Environment Characteristics

Rated power: 1~1000W (70°C)

TCR: ±300×10^-6/°C

Moisture proof (GJB306A-96-Method106): ΔR≤±5%R

Test at low temperature (-55°C, 24h): ΔR≤±5%R

Collision: ΔR≤±3%R

Temperature range: -55°C~+165°C

Temperature shock (-55°C/+125°C, 3 times): ΔR≤±5%R

Vibration (10-500HZ, 0.75mm, 6h): ΔR≤±3%R, No mechanical damage

Load life (96): ΔR≤±5%

Physical Characteristics

Terminal strength (10N, 5s): No loosening or fall-out

Solderability (240°C, 3s): Coverage area of tin layer: 95%