Name: Programmable SMD Resistor Module | 0.1Ω-9MΩ Adjustable Board
Brand: Sun Cheong Computer Company Limited
Price: 121.0 TWD
Availability: InStock

Short Product Description

Accelerate your circuit prototyping and debugging with our Programmable SMD Resistor Module. Covering a massive range from 0.1Ω to nearly 10MΩ with 1% accuracy, this compact board effortlessly replaces bulky sliding rheostats. Whether you are fine-tuning op-amps or configuring switching power supplies, get exact resistance values instantly using simple jumper caps. Backed by our 20 years of technical expertise and in-store O2O support.

Key Features

Massive Resistance Range: Spans from 0.1Ω to 9,999,999.9Ω, giving you the flexibility to tackle almost any low-power circuit requirement.
High Step Accuracy (0.1R): Fine-tune your circuits with precise 0.1-ohm increments for meticulous component matching.
Reliable SMD Construction: Utilizes surface-mount technology for superior stability and a smaller footprint compared to traditional wire-wound rheostats.
Plug-and-Play Setup: Comes with pre-soldered pin headers and jumper caps, so you can start testing immediately without reaching for a soldering iron.
Low Temperature Drift: Features a temperature coefficient of ±400ppm/°C (with most components at ±200ppm/°C), ensuring your readings stay consistent even as ambient temperatures fluctuate.
Local Technical Support: Enjoy peace of mind with robust after-sales support and O2O exchange options directly at our Sham Shui Po retail location.

Full Product Description

Precision Resistance Tuning Made Simple

When prototyping circuits or debugging power supplies, finding the exact resistance value can be a time-consuming bottleneck. This Programmable SMD Resistor Board provides a fast, reliable, and space-saving solution. By simply arranging the included jumper caps, you can dial in any resistance from a mere 0.1Ω up to 9,999,999.9Ω with a highly accurate step of 0.1R.

The Smart Alternative to Sliding Rheostats

Traditional potentiometers and sliding rheostats are bulky and often suffer from mechanical wear, leading to unstable readings. This programmable module utilizes high-quality SMD resistors arrayed on a dedicated board. It eliminates physical wiper noise and provides a stable, fixed resistance value once the jumpers are set, making it an essential tool for precise engineering workflows.

Built for Professional Debugging

Designed with developers and technicians in mind, this board features standard pre-soldered pin headers for immediate use. It is ideal for matching required resistance in op-amp circuits or testing feedback loops in switching power supply demo boards.

Pro Tip: Due to natural component tolerances, we recommend pairing this module with a digital multimeter to confirm the exact output value across the terminals after setting your jumper configuration.

Technical Specifications

Output resistance range: 0.1 Ω up to 9,999,999.9 Ω (≈10 MΩ range).
Step resolution / step accuracy: 0.1 Ω (each step changes the resistance by 0.1 Ω).
Tolerance / basic accuracy: ±1% of the set resistance value.
Select‑component accuracy: ±0.5% for selected / higher‑grade resistors.
Power rating per individual resistor: 0.1 W (1/10 watt).
Maximum operating power (entire module): 1/2 W (0.5 watt) total over all resistors combined.
Temperature coefficient (TCR): typically ±400 ppm/°C, with many individual resistors at ±200 ppm/°C or better.
Interface / connection: pre‑soldered pin headers with included jumper caps for easy setup and configuration.

Delivery Options

Local delivery within Hong Kong and in-store pickup.
Free shipping for orders of HK$400 or above; HK$35 shipping fee for orders below HK$400.
Shipped by SF Express, usually dispatched the same day for orders confirmed before 6:00 PM (Mon–Sat).
Estimated delivery time: 1–3 business days after dispatch (Hong Kong).
In-store pickup details (location and time) will be confirmed by email or phone message.
Delivery times are estimates and may be affected by weather or unforeseen circumstances.

FAQ Section

Q. How do I set a specific resistance value?

A. Simply place the jumper caps across the corresponding multiplier columns (x1M, x100K, x10K, down to x0.1R) to add up to your target value. Always verify the final output with a multimeter to account for minor tolerance stacking.

Q. Can this handle high-power load testing?
A. No, this module is designed for low-power signal debugging and feedback loops. The power rating for individual resistors is 0.1W, making it unsuitable for high-current load testing.

Q. Is this compatible with Arduino or Raspberry Pi breadboards?
A. Yes! The standard pin pitch makes it easy to wire into development boards, making it an excellent STEM teaching tool for electronics students.

Target Users / Applications

Electronics Engineers: Op-amp tuning, sensor calibration, and switching power supply feedback debugging.
STEM Educators & Students: Demonstrating resistance addition and circuit principles.
DIY Makers & Hobbyists: Prototyping on Arduino/Raspberry Pi development boards.
Repair Technicians: Quickly finding the right substitute resistor value during motherboard diagnostics.