Resistor box
High-Quality Resistor Box for Professional Electrical Applications
The resistor box is an essential component in electrical testing, circuit design, and laboratory environments. Our precision-engineered resistor boxes provide accurate and stable resistance values for various applications including calibration, education, and industrial testing.
Key Features of Our Resistor Box
- Precision resistance values with ±0.1% tolerance
- Heavy-duty construction with durable materials
- Multiple decade resistance ranges available
- Gold-plated contacts for superior conductivity
- Temperature coefficient: ±15ppm/°C
- Maximum voltage rating: 500V
- Power rating: 0.25W per resistor
Technical Specifications
| Model | Resistance Range | Steps | Accuracy | Max Current |
|---|---|---|---|---|
| RB-100 | 1Ω - 10MΩ | 1Ω to 1MΩ in decade steps | ±0.1% | 1A |
| RB-200 | 10Ω - 100MΩ | 10Ω to 10MΩ in decade steps | ±0.05% | 0.5A |
| RB-300 | 100Ω - 1GΩ | 100Ω to 100MΩ in decade steps | ±0.01% | 0.25A |
Applications
- Calibration of electrical instruments
- Educational demonstrations in physics labs
- Circuit prototyping and testing
- Quality control in manufacturing
- Research and development projects
Resistor Box FAQ
Q: What is the typical lifespan of a resistor box?
A: With proper care and maintenance, our resistor boxes typically last 10-15 years in normal laboratory conditions. The actual lifespan depends on usage frequency, environmental conditions, and whether the device is operated within its specified parameters. Regular calibration checks can help maintain accuracy throughout its service life.
Q: How often should I calibrate my resistor box?
A: For most applications, we recommend annual calibration. However, if used in critical measurements or harsh environments, calibration every 6 months is advisable. Our high-end models (RB-200 and RB-300) maintain their calibration exceptionally well and may only require verification every 18 months under normal conditions.
Additional Features
- Short-circuit protected terminals
- Low thermal EMF construction
- Shielded to minimize EMI/RFI interference
- CE and RoHS compliant
- 3-year manufacturer warranty
More Resistor Box Questions
Q: Can I use a resistor box for high-power applications?
A: Our standard resistor boxes are designed for low-power applications (typically 0.25W per resistor). For higher power requirements, we offer custom solutions with appropriate heat dissipation capabilities. Exceeding the specified power rating may damage the resistors and affect measurement accuracy.
Ordering Information
| Model | Lead Time | Package Includes |
|---|---|---|
| RB-100 | 1-2 business days | Resistor box, calibration certificate, user manual |
| RB-200 | 3-5 business days | Resistor box, NIST-traceable calibration certificate, protective case |
| RB-300 | 1-2 weeks | Resistor box, full calibration report, premium carrying case |