The KQ0805TE39NJ is a multilayer ceramic chip inductor manufactured by KOA Speer. This inductor is designed for high-frequency applications where small size and high performance are crucial. KOA Speer is a well-known manufacturer of passive components, and their inductors are used in various electronic devices and circuits.

Applications:

• RF Circuits: Used in radio frequency (RF) circuits for impedance matching, filtering, and tuning.
• Wireless Communication Devices: Employed in mobile phones, Bluetooth modules, and other wireless devices.
• High-Frequency Filters: Used in filters to attenuate unwanted frequencies and improve signal quality.
• Oscillators: Integral part of oscillator circuits for generating stable frequency signals.
• Impedance Matching Networks: Used to match impedance between different circuit stages, maximizing power transfer.

Features:

• Multilayer Ceramic Construction: Provides high Q-factor and stable performance at high frequencies.
• Small Size: 0805 case size allows for compact designs in electronic circuits.
• High Self-Resonant Frequency (SRF): Ensures optimal performance at the intended operating frequency.
• Tight Tolerance: Provides accurate and consistent inductance values.
• RoHS Compliant: Compliant with RoHS regulations for environmental protection.

Benefits:

• Improved Circuit Performance: High Q-factor enhances circuit performance and reduces losses.
• Compact Design: Small size enables compact and efficient circuit designs.
• Stable Operation: Consistent electrical characteristics ensure stable operation across various operating conditions.
• Reliable Performance: Robust construction and materials contribute to long-term reliability.
• Easy Assembly: Surface mount design facilitates easy assembly using automated equipment.

Additional Details:

The KQ0805TE39NJ has an inductance value of 39 nH (nanohenries). The 0805 case size refers to the physical dimensions of the inductor, which are approximately 2.0 mm x 1.25 mm. The inductor's specifications include the inductance tolerance, Q-factor at a specified frequency, self-resonant frequency, and DC resistance (DCR). These parameters are critical for proper circuit design and can be found in KOA Speer's datasheet. Surface mount technology (SMT) is used for mounting the inductor onto printed circuit boards (PCBs). Proper soldering techniques are essential for ensuring a reliable connection between the inductor and the PCB. The inductor is designed to operate within a specified temperature range, typically from -55°C to +125°C.