brands

attributes.Decade_Box_Type

attributes.Calibrated_service_type

attributes.Resistance_Resolution

attributes.Best_Maximum_Resistance_Accuracy

attributes.Best_Minimum_Resistance_Accuracy

attributes.Residual_Resistance

attributes.Capacitance_Resolution

attributes.Best_Capacitance_Accuracy

attributes.Residual_Capacitance

attributes.Inductance_Resolution

attributes.Best_Inductance_Accuracy

attributes.Residual_Inductance

attributes.Power_Rating

attributes.Temperature_Coefficient

attributes.Dimensions

Cropico Resistance Decade Box, Resistance Resolution 1Ω, Absolute Maximum Resistance Measurement 100kΩ

Cropico Resistance Decade Box, Resistance Resolution 10Ω, Absolute Maximum Resistance Measurement 10MΩ

Cropico Resistance Decade Box, Resistance Resolution 10Ω, Absolute Maximum Resistance Measurement 1MΩ

Cropico Resistance Decade Box, Resistance Resolution 0.001Ω, Absolute Maximum Resistance Measurement 100Ω

Cropico Resistance Decade Box, Resistance Resolution 0.1Ω, Absolute Maximum Resistance Measurement 1kΩ


Decade boxes are testing instruments that use a series of resistors, capacitors, or inductors to replicate different electrical values. Easily inserted into a circuit, they can substitute for standard components to help determine the optimal resistance, capacitance, or inductance needed for proper circuit operation. Their flexibility makes them ideal for fine-tuning designs, verifying test equipment accuracy, and troubleshooting electrical systems.

## **How Do Decade Boxes Work?**

Decade boxes are passive test instruments composed of switches and a series of resistors, capacitors, or inductors arranged in groups called “decades,” with each decade representing values in powers of ten.

For instance, in a resistance decade box:

- The first decade might include 5-ohm, 2-ohm, and two 1-ohm resistors.
- The second decade could have 50-ohm, 20-ohm, and two 10-ohm resistors.
- The third might contain 500-ohm, 200-ohm, and two 100-ohm resistors.

This setup allows the box to be adjusted to any resistance value between 1 ohm and 999 ohms in 1-ohm increments. Some models include six or more decades, enabling broader ranges and finer precision.

The same decades principle applies to capacitance and inductance boxes, except the components are capacitors or inductors arranged to allow selection of accurate values across a similarly scaled range.

Decade boxes are defined by their total range, resolution, and measurement accuracy. To use one, simply set the desired value on the box, then connect it to the input device (such as a transmitter, controller, or multimeter). The device’s reading should correspond to the value selected on the decade box.

Decade boxes are characterised by:

- **Total Range:** The maximum component value they can simulate.
- **Resolution:** The smallest incremental value selectable.
- **Accuracy:** The level of precision with which the component approximates nominal values, affected by component tolerances and device quality.

## **Types of Decade Boxes**

RS Philippines offers several common types of decade boxes designed to meet various testing needs:

### **Resistance Decade Boxes**

Resistance decade boxes are used to simulate different resistance values quickly and accurately. They consist of a set of resistors arranged in series, which can be combined using switches to produce a wide range of resistance values. These boxes are useful for measuring circuit resistance, calibrating electrical devices, and testing the accuracy of instruments like thermostats, temperature controllers, and [multimeter testers](https://ph.rs-online.com/web/c/test-measurement/multimeters-accessories/multimeters/). These boxes are often the most commonly used type due to resistance being the most frequently varied parameter in electrical testing.

### **Capacitance Decade Boxes**

Capacitance decade boxes are designed to simulate specific capacitance values for testing and calibrating circuits. They are useful for verifying the accuracy of instruments that measure capacitance, such as [multimeter tools](https://ph.rs-online.com/web/c/test-measurement/multimeters-accessories/multimeter-kits/). Capacitive decade boxes assist in circuit timing tests, filter adjustments, and sensor calibration.

### **Inductance Decade Boxes**

Inductance decade boxes simulate inductance values for testing and verification. They are used to check the accuracy of instruments that measure inductance. In circuit design, inductance decade boxes allow users to insert different inductance values into a circuit to determine the most suitable inductor size for a given application.

## **Why Use a Decade Box in Electrical Testing?**

A decade box is an essential calibration tool for engineers, technicians, and educators, offering several key benefits:

- **Speed and Precision:** Instead of manually swapping multiple individual components, decade boxes allow instantaneous adjustment of electrical values, significantly accelerating prototyping and testing workflows.
- **Convenience and Compactness:** Designed to be portable and easy to operate, decade boxes simplify on-site adjustments and experimentation without bulky or complex setups.
- **Accuracy Verification:** Decade boxes facilitate calibration of measuring instruments like multimeters, sensors, or controllers by providing known precise standards, ensuring measurement reliability.
- **Versatility:** Suitable for diverse applications from component value optimization to fault diagnosis and educational demonstrations.

Overall, decade boxes improve efficiency, reduce errors, and enhance insight into circuit behaviour by enabling real-time adjustment and simulation of component values.

## **How to Choose the Right Decade Box**

When selecting a decade box for your testing setup, consider the following factors:

- **Component Type:** Choose the right type based on what you need to simulate: resistance, capacitance, or inductance.
- **Value Range:** Check that the box covers the full span of values you plan to test. For example, a wider range may be necessary for calibrating high-resistance sensors or capacitors in audio systems.
- **Resolution:** Choose a resolution that works well with your application’s sensitivity requirements. Should you need more control and accuracy for our application, consider a decade box with finer increments.
- **Accuracy & Certification:** In regulated or lab environments, choose decade boxes with known tolerances, stable components (low temperature coefficients), and relevant calibration certificates. Accuracy ratings directly impact confidence in measurements and calibrations.
- **Pricing:** Compare decade box price and features to get the best value for your application.

## **Where Decade Boxes Are Used Across Industries**

Decade boxes are used across a wide range of industries to simulate component values and calibrate sensitive instruments:

- **Discrete Manufacturing:** In sectors like electronics and automotive, resistor decade boxes are used in PCB design and sensor calibration, enabling faster testing cycles during prototyping.
- **Process Manufacturing:** They are useful for verifying control systems in dosing, mixing, and temperature regulation, where accurate resistance or capacitance simulation is critical.
- **Energy & Utilities:** Technicians use decade boxes to validate power meters, protective relays, and monitoring equipment, ensuring the electrical infrastructure runs smoothly and within spec.
- **Facilities & Intralogistics:** In universities, technical schools, and R&D labs, decade boxes are essential tools for electronics education, giving students hands-on experience with real circuit behaviors.

Their adaptability and accuracy make decade boxes indispensable wherever precision electrical component simulation or calibration is required.

## **Why Buy Decade Boxes from RS Philippines?**

RS Philippines offers a comprehensive selection of high-quality decade boxes, including resistance, capacitance, and inductance models from leading global brands. Whether you're working on circuit design, calibration, or educational applications, you can count on dependable equipment at competitive prices.

When sourcing reliable resistor or capacitor decade boxes in the Philippines, RS is your trusted partner, delivering quality, service, and value with every order. For more information on delivery options and fees, please visit our [delivery page](https://ph.rs-online.com/web/content/support/all-articles/delivery).



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