The D55342K07B43D2SUL is a precision thin film chip resistor manufactured by Vishay. It's designed for surface mount applications where high stability, tight tolerance, and reliable performance are crucial. This resistor is commonly used in military, aerospace, and other high-reliability electronic circuits.

Applications:

• Military and aerospace electronics (e.g., guidance systems, communication equipment)
• Medical instrumentation (e.g., precision measurement devices)
• High-end audio equipment
• Precision measurement and control circuits
• Test and measurement equipment

Features:

• Thin film resistive element
• Surface mount technology (SMT)
• High stability
• Tight tolerance (typically ±0.1% or better)
• Low temperature coefficient of resistance (TCR)
• RoHS compliant
• Resistance Value: 43.2kΩ
• Power Rating: 0.25W (1/4W)
• Temperature Coefficient: ±25 ppm/°C

Benefits:

• Provides highly accurate and stable resistance values.
• Ensures reliable performance in harsh environments.
• Minimizes resistance drift over temperature and time.
• Enables precise circuit operation and control.

Additional Details:

The D55342K07B43D2SUL resistor is constructed with a thin film resistive element on a ceramic substrate. The thin film technology allows for precise control of the resistance value and provides excellent stability. The resistor is typically available in a small surface mount package for high-density circuit board assembly.

The "D55342" designation indicates that it meets MIL-PRF-55342 specifications, ensuring high reliability and performance under demanding conditions. The "K" indicates a tolerance of 1%, and the "07" is the package size code, related to the physical dimensions. The "43D2" represents the resistance value of 43.2 kOhms (43200 Ohms). The "SUL" likely refers to termination materials or other special characteristics.

This resistor is often supplied on tape and reel for automated assembly. The reel packaging streamlines handling and placement during manufacturing, contributing to efficient production processes. The solder terminations are designed to withstand reflow soldering profiles common in SMT assembly.