100r Ceramic Variable Resistor 25W 1-10kΩ ±10% Tolerance
Price:
Negotiable
MOQ:
100
Delivery Time:
Negotiable
Brand:
China
Product Description
High Power 100Ω Ceramic Variable Resistor 25W Rheostat
The BC-1 wire wound resistor features high resolution capability with a wide resistance range. It offers excellent heat resistance, humidity resistance, and wear resistance characteristics. Suitable for voltage and current adjustment in power equipment and circuits not exceeding 380V AC or 220V DC.
Technical Specifications
- Maximum working voltage: 1000V (insulation voltage 2500V)
- Temperature rise: 25-100W models ≤300K; ≥150W models ≤350K
- Sliding travel: 25-50W models: 280±5°; ≥100W models: 300±5°
- Linear deviation: Not greater than ±10% across entire travel
- Control shaft rotation: 5,000 cycles within travel of not less than 90%
- High temperature test: 40°C for 6 weeks (6 days), insulation resistance less than 1.5MΩ
The BC1 series of rotor-arm sliding wire porcelain disk variants are designed for voltage and current adjustment in industrial electrical equipment up to 500 volts. The resistor uses a round ceramic skeleton with constantan or nichrome wire as resistance material, coated with high-temperature enamel except for the sliding contact surface. Features a protective metal case with handwheel operation.
Performance Characteristics
| Electrical Characteristics | Environmental Characteristics | ||
|---|---|---|---|
| Standard resistance range | 1Ω~5KΩ | Temperature range | -55℃~350℃ |
| Resistance tolerance | ±10% | Vibration | 10~200Hz, 40m/S², 3h ΔR≤±3%R |
| Terminal resistance | ≤0.2% or 1Ω | Temperature cycling | -55°C/30min, 85°C/30min ΔR<+3%R, R1>500MΩ |
| Insulation resistance | ≥100MΩ (500Vdc) | Humidity | 40±2°C, RH:95%-98% 48h ΔR≤±3%R, R≥100MΩ |
| Maximum heating temperature | 350℃ | Load endurance | R≤1KΩ: 5000 cycles; R>1KΩ: 1000 cycles ΔR≤±5%R |
| Mechanical travel | 300°±10° | Shock resistance | 60-100 times/min, 150m/s², 4000 times |
Applications
Suitable for telecommunications, railway transportation, electrical equipment, medical devices, industrial equipment, and low-frequency AC/DC electrical equipment requiring voltage/current regulation or adjustable load resistance.
Product Dimensions
Frequently Asked Questions
Q: How can I place an order?
A: Contact us by email with your order details or place your order online.
Q: What payment methods do you accept?
A: We accept T/T, PayPal, and Western Union after PI confirmation.
Q: What is your order procedure?
A: We discuss order details, issue a PI for confirmation, require deposit payment, begin production (7-15 days if not in stock), arrange shipment after balance payment.
Q: What is your policy for defective products?
A: We replace defective items or credit your account, typically in the next shipment.
Q: How do you ensure product quality?
A: We conduct spot inspections during production and finished product inspections before shipment.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Sichuan Qixing Electronics Co., Ltd.
Location
2nd Floor, Building 2, 388 Rongtai Avenue Chengdu Sichuan China
Contact Person
weidong tong