CRCW1206470MJPEAHR

series introduction

# Introduction to the CRCW1206470MJPEAHR Product Series

## 1. Overview
The CRCW1206470MJPEAHR belongs to a specific series of surface - mount resistors. These resistors are crucial components in a wide range of electronic circuits, providing precise resistance values to control the flow of electric current and voltage levels. The "CRCW" is often a product family identifier, "1206" refers to the package size, "470M" indicates the resistance value, "J" represents the tolerance, and the rest of the alphanumeric characters may be specific to the manufacturer's internal coding or additional features.

## 2. Package Size (1206)
### Physical Dimensions
The 1206 package is a standard size in the surface - mount technology (SMT) industry. It has a length of approximately 3.2 mm and a width of about 1.6 mm. This relatively large size compared to some other SMT packages offers several advantages.
### Handling and Assembly
- **Easier Handling**: The larger size makes it more convenient for pick - and - place machines during the automated assembly process. It reduces the risk of misplacement or damage during handling, which is especially important in high - volume production environments.
- **Good Thermal Performance**: The larger surface area allows for better heat dissipation. When the resistor is in operation and dissipates power, the heat can be more effectively transferred to the surrounding environment, preventing overheating and ensuring stable performance.

## 3. Resistance Value (470M)
### Value Explanation
The resistance value of 470M means 470 mega - ohms (470 × 10⁶ ohms). This high resistance value is useful in various applications where a very small current flow is required.
### Application Examples
- **Voltage Dividers**: In circuits where a specific fraction of the input voltage needs to be obtained, high - resistance voltage dividers can be constructed using resistors like the CRCW1206470MJPEAHR. For example, in some sensor circuits, a voltage divider can be used to scale down a high - voltage signal to a level that can be processed by a microcontroller.
- **Isolation and Protection**: High - resistance resistors can be used to isolate different parts of a circuit or to protect sensitive components from excessive current. They can limit the current flow in case of a fault or abnormal voltage conditions.

## 4. Tolerance (J)
### Tolerance Definition
The "J" tolerance code indicates a tolerance of ± 5%. This means that the actual resistance value of the CRCW1206470MJPEAHR can vary within ± 5% of the nominal value of 470M ohms. So, the actual resistance can range from 446.5M ohms (470M - 5% of 470M) to 493.5M ohms (470M+ 5% of 470M).
### Importance in Applications
- **Precision Requirements**: In applications where high precision is not critical, a ± 5% tolerance is acceptable. For example, in some general - purpose power supply circuits or simple signal conditioning circuits, a small variation in resistance value will not significantly affect the overall performance of the circuit. However, in more precise applications such as precision measurement instruments or high - frequency communication circuits, a lower tolerance resistor may be required.

## 5. Electrical and Thermal Characteristics
### Power Rating
The power rating of the CRCW1206470MJPEAHR is an important parameter. It determines the maximum amount of power that the resistor can

Images for reference

CRCW-HR 1206 (3216 Metric)

Datasheets

• PDF 1

Partlist