CRCW0805100KFKE
Thick film SMD resistors, 100K Ohm, 1%, 0805 size, various power ratings
Manufacturer： ['dale', 'vishay', 'vishay-draloric']
series introduction
# Introduction to the CRCW0805100KFKE Product Series
## 1. Overview
The CRCW0805100KFKE belongs to a specific series of surface - mount resistors. These resistors are crucial components in electronic circuits, playing a fundamental role in controlling current flow, dividing voltages, and providing impedance matching. The "CRCW" is often the product family code, "0805" refers to the physical size of the resistor, and "100KFKE" indicates its resistance value and other specific characteristics.
## 2. Physical Characteristics
### Size and Dimensions
The 0805 package size is a widely used standard in the electronics industry. It has a length of approximately 2.03 mm and a width of about 1.27 mm. This relatively small size makes it suitable for use in compact electronic devices where space is at a premium, such as mobile phones, tablets, and wearable devices. The small footprint allows for high - density circuit board designs, enabling manufacturers to pack more functionality into a limited area.
### Construction
The CRCW0805100KFKE resistors are typically constructed using a thick - film technology. A resistive film is deposited onto a ceramic substrate. This construction provides good stability and reliability. The ceramic substrate offers excellent thermal properties, which helps in dissipating heat generated during the operation of the resistor. The resistive film is carefully formulated to achieve the desired resistance value with a high degree of precision.
## 3. Electrical Characteristics
### Resistance Value
The "100K" in the part number indicates that the resistor has a resistance value of 100,000 ohms (100 kΩ). This value is crucial in determining how the resistor will interact with other components in a circuit. For example, in a voltage - dividing circuit, a 100 kΩ resistor can be used in combination with other resistors to create a specific output voltage based on the input voltage and the ratio of the resistances.
### Tolerance
The tolerance of the CRCW0805100KFKE resistor is an important parameter. It represents the allowable deviation from the nominal resistance value. A typical tolerance for this series might be ±1%. This means that the actual resistance value of the resistor can vary between 99 kΩ and 101 kΩ. A low tolerance is essential in applications where precise resistance values are required, such as in precision measurement circuits or in circuits where the performance is highly sensitive to changes in resistance.
### Temperature Coefficient
The temperature coefficient of resistance (TCR) is another significant electrical characteristic. It describes how the resistance value of the resistor changes with temperature. For the CRCW0805100KFKE series, a relatively low TCR is often specified, for example, ±100 ppm/°C. This means that for every degree Celsius change in temperature, the resistance value will change by a maximum of 100 parts per million of its nominal value. A low TCR ensures that the resistor's performance remains stable over a wide range of operating temperatures, which is important in applications where the temperature can vary significantly, such as in automotive electronics or industrial control systems.
### Power Rating
The power rating of the CRCW0805100KFKE resistor indicates the maximum amount of power it can safely dissipate without being damaged. For an 0805 - sized resistor, a common power rating is 1/8 watt (125 mW). When using the resistor in a circuit, it is important to ensure that the power dissipated across the resistor does not exceed this rating. Otherwise, the resistor may overheat, leading to a change in its resistance value or even permanent damage.
## 4. Applications
Images for reference
CRCW-0805
SMD Thick Film Side
SMD Thick Film Top