RN55E4270BRE6

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Through Hole Resistors

RN55E4270BRE6 is a precision thin film resistor providing optimized electrical properties for various application fields in the form of through-hole mounting. This type of resistor offers repeatable performance over load, temperature, and time. With their proprietary material, it also offers stability and reliability both for digital and analog applications, whether surface mount or through hole.

Application Field

RN55E4270BRE6 is mainly used in fields that require precise voltage divider and current sense resistors. It supports power supplies, instrumentation, or factory automation with stability and accuracy required for the task. It is also used in medical and telecommunications devices that need to work reliably over extended periods of time.

The general purpose of RN55E4270BRE6 is to limit current and adjust circuit characteristics. As a result, electronics applications such as DC/DC converters, power supply systems, audio amplifiers, switching regulators, temperature sensors, motor control circuits, HVAC controls, and automotive electronics all benefit from the performance of this resistor.

Working Principle

The RN55E4270BRE6 utilizes a Thin Film/Thick Film Multilayer structured construction that provides low resistance, excellent TCR and stability suitable to meet customer needs when it comes to precision resistors. The resistor is formed by firing ceramic particles like niobium oxide, tantalum oxide, and molybdenum oxide in a matrix onto a high purity alumina substrate. The uniformity and adhesion of these materials to the substrate are achieved by firing in vacuum.

The connections of the resistor are made using gold metallic films and silver palladium contact fingers. The firing process makes it possible to obtain a narrow TCR (±15ppm/°C) and resistance tolerance of ±0.1% over the overall operating temperature range of -55°C to +125°C.

The performance of the RN55E4270BRE6 is further enhanced with its low temperature coefficient of resistance (TCR) and 0.25W power rating but with a small footprint. This is further complemented by its capability to handle high pulse voltages, high operating currents, and being compatible with reflow soldering or auto placement. For these reasons, RN55E4270BRE6 has become the standard in precision resistor applications.

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