About
We provide high-quality laboratory equipment, precision instruments, and durable plastic ware to support scientific research and innovation. Our products are designed to meet the needs of modern laboratories, from academic to industrial settings. We offer a wide range of tools including microscopes, centrifuges, pipettes, and analytical balances. Our plastic ware collection features reliable and chemical-resistant items like test tubes, petri dishes, and storage containers. Each product is carefully sourced and tested to ensure accuracy, safety, and performance. With a focus on affordability and customer support, we are committed to helping your lab succeed.High Precision Digital Resistance ControlAchieve fine-grained tolerance and precision in your circuits with 256 programmable positions that provide accurate, digitally controlled resistance ranging from 0 to 10 k. This module is engineered for stability, low noise, and consistent long-term performance in both audio and signal processing electronics.
Versatile Integration and Reliable PerformanceWith a compact, rectangular form factor and through-hole PCB mounting, this device seamlessly fits into a variety of electronic systems. Compatible with both I2C and SPI interfaces, it is ideal for integration with microcontrollers, enabling flexible digital control and reliable variable resistance adjustment at up to 10 MHz operating frequency.
Robust Construction and Safe OperationManufactured using high-quality ABS plastics, PCBs, and electronic components, the module is RoHS compliant and offers ESD protection up to 2kV HBM. Its wide operating temperature range (-40C to 85C) makes it suitable for diverse environments, while the long operational life cycle supports demanding applications.
FAQ's of Digital Potentiometer:
Q: How do I integrate this digital potentiometer with a microcontroller?
A: Integration is straightforward-connect the module's 6 pins to your microcontroller's I2C or SPI interface (depending on the model), provide a 3.3V or 5V DC power supply, and use digital signals to program resistance values anywhere within the 256 available positions.
Q: What are the key benefits of using this digital potentiometer in my circuit?
A: Key benefits include precise digitally controlled resistance, low noise for audio circuits, long operational lifespan (100,000 cycles typical), and reliable operation under a wide range of temperatures. Its compact size and RoHS compliance also ensure easy installation and environmental safety.
Q: Where can this module be used effectively?
A: This digital potentiometer is ideally suited for electronic circuits requiring variable resistance, including audio applications, microcontroller interfaces, volume controls, sensor calibration systems, and programmable instrumentation.
Q: When does the potentiometer require replacement or maintenance?
A: Due to its long life cycle (typically 100,000 cycles), replacement is rarely needed under normal use. Maintenance is minimal; simply ensure proper mounting and avoid exposure to damaging voltages or environments beyond the specified temperature range.
Q: What is the typical resistance range and accuracy of this module?
A: The module provides a resistance range up to 10 k, divided into 256 distinct positions. It offers high precision, with a typical accuracy of 1%, allowing for fine-tuned resistance adjustments in your design.
Q: How is adjustment achieved and what is the process for changing resistance values?
A: Adjustment is digitally controlled using microcontroller signals sent over I2C or SPI. Resistance values are changed programmatically, providing fast, repeatable settings without manual intervention.