PROTECTIVE State of the Art, Inc. ENCAPSULANT PRECISION 5 0505 Thin Film Chip Resistor

Category: Electronics, Resistors, State Of The Art Inc

Performance Characteristics

The datasheet describes the performance characteristics of the 5 0505 Thin Film Chip Resistor, which is a standard-grade, state-of-the-art protective encapsulant resistor with wraparound terminations made from 99.6% alumina. The resistor offers a wide resistance range from 5.60 ohms to 470K ohms and is available in tolerances starting from 0.1% to 5%. It includes Temperature Coefficient of Resistance (TCR) values of 425, +50, and +100 parts per million (ppm). The thermal resistance is rated at 38.8°C/W, with the capability to handle maximum power dissipation of 125 milliwatts and a maximum voltage rating of 40 volts.

Current Noise and Power Dissipation

Current noise ratings are shown in a graph, demonstrating typical power dissipation as a function of resistance on different board materials such as fiber epoxy and ceramit board. The resistor’s performance is maintained across various environments, shown by a series of tests, including thermal shock, low temperature operation, and short-time overload, among others. The typical life test performance chart illustrates the power derating across ambient temperature range.

Environmental and Mechanical Data

Environmental Performance: The datasheet refers to MIL-PRF-55342 for typical resistance change, test methods, and criteria, indicating adherence to military specifications. Tests cover a range of stress factors such as moisture resistance and high-temperature exposure, with resistance changes generally within ±0.03%.

Typical mechanical dimensions are provided in both inches and millimeters, including length, thickness, top and bottom termination, gap, and the approximate weight of the resistor.

Part Numbering and Ordering Information

Detailed part numbering is explained to ensure accurate specification of the desired product. This includes the selection of packaging code, termination finish, temperature characteristic (TCR), tolerance, resistance value, product designation, and termination type.

The Packaging Code: options include Tape/Reel (TR) and Waffle Carrier (W), with default packaging being Bulk.
Termination Finish: options are Tin-Lead (Sn60) over nickel barrier (B) and Gold (W).
TCR, Tolerance, and Resistance Value: These offer multiple choices defining the specific resistor characteristics, with extended details for encoding fractional ohmic values and the number of significant figures based on tolerance level.

The datasheet cautions that specifications are subject to change without notice. Contact information for State of the Art, Inc. is provided, including phone numbers, fax, and a website for further inquiries or orders. The document is dated February 8, 2008.