CRCW2010243KFKEF
Precision thick film resistors for surface-mount applications
Manufacturer： vishay
series introduction
# Introduction to the CRCW2010243KFKEF Product Series
## 1. Overview
The CRCW2010243KFKEF product series belongs to the realm of precision surface - mount resistors. These resistors are engineered to meet the exacting demands of modern electronic circuits, offering a high - level of performance, reliability, and precision. The "CRCW" is a common naming convention for a specific resistor family, and the "2010" indicates the physical size of the resistor, which is a standard industry - recognized dimension. The "243K" represents the resistance value, and the remaining characters are part of the manufacturer's specific coding for features and tolerances.
## 2. Physical Characteristics
### Size and Dimensions
The 2010 size in the CRCW2010243KFKEF series follows the industry - standard surface - mount package dimensions. The length is approximately 5.08 mm, the width is around 2.54 mm, and the height is relatively low, typically in the range of 0.5 - 1.0 mm depending on the specific manufacturing process. This compact size makes it suitable for use in densely populated printed circuit boards (PCBs), where space is often at a premium.
### Construction
These resistors are constructed using a thick - film technology. A resistive film is deposited onto a ceramic substrate, which provides excellent mechanical stability and thermal performance. The ceramic substrate has high thermal conductivity, allowing the resistor to dissipate heat efficiently, which is crucial for maintaining stable electrical performance over a wide range of operating temperatures.
## 3. Electrical Performance
### Resistance Value
The CRCW2010243KFKEF series has a resistance value of 243 kΩ (243,000 ohms). This value is carefully calibrated during the manufacturing process to ensure high precision. The resistance value is a fundamental parameter in electronic circuits, and it determines the amount of current that will flow through a particular part of the circuit according to Ohm's law (V = IR, where V is voltage, I is current, and R is resistance).
### Tolerance
The resistors in this series typically offer a tight tolerance. A common tolerance value for this series is ±1%. This means that the actual resistance value of a resistor in the CRCW2010243KFKEF series will be within 1% of the nominal 243 kΩ value. For example, the actual resistance could range from 240.57 kΩ to 245.43 kΩ. A low tolerance is essential in applications where precise control of current and voltage is required, such as in precision measurement circuits, analog - to - digital converters, and voltage - reference circuits.
### Temperature Coefficient of Resistance (TCR)
The TCR of the CRCW2010243KFKEF series is relatively low, often in the range of ±100 ppm/°C. The TCR indicates how much the resistance value of the resistor will change with a change in temperature. A low TCR means that the resistance value remains relatively stable over a wide temperature range. This is important in applications where the operating temperature can vary significantly, such as in automotive electronics, industrial control systems, and outdoor - use electronic devices.
### Power Rating
The power rating of the CRCW2010243KFKEF resistors is typically around 0.25 W. This power rating determines the maximum amount of power that the resistor can safely dissipate without overheating. When using these resistors in a circuit, it is important to ensure that the power dissipated by the resistor (calculated using the formula P = I²R or P = V²
Images for reference
CRCW-2010
CRCW-HP-2010
CRCW HP 402, 603, 805, 1206, 2010, 2512 Side