State of the Art, Inc. – 51 0302 Thick Film Chip Resistor

Category: Electronics, Resistors, State Of The Art Inc

Overview:

The datasheet presents the specifications and details for the “51 0302 Thick Film Chip Resistor” from State of the Art, Inc. It describes a standard-grade resistor with wraparound terminations constructed on 96% alumina chips. The datasheet also details the resistor’s performance characteristics, environmental performance, part numbering system, mechanical specifications, and recommended mounting pads.

Performance Characteristics:

The resistor’s characteristics include a resistance range from 1 ohm to 10 megohms, with tolerances available in 1%, 2%, 5%, and 10%. Temperature coefficient of resistance (TCR) values are noted as +100 ppm, +200 ppm, and +300 ppm. Additionally, the thermal resistance is at 67.7°C/W, with a maximum power rating of 40 mW and a maximum voltage of 15 volts. Current noise and power dissipation are also integral parts of the resistor’s performance specification.

Environmental Performance:

The resistor demonstrates robust environmental performance with typical resistance change parameters such as thermal shock, low temperature operation, short-time overload, resistance to bonding exposure, moisture resistance, high temperature exposure, and life test all within a change margin of +0.03% to +0.05%. These characteristics comply with the test methods and criteria specified in MIL-PRF-55342.

Part Numbering System:

The part numbering system includes a comprehensive code that details the packaging, temperature characteristic, tolerance, resistance value, termination finish, and product designation. For example, “S 0302 C P X 150 J 20 – W” indicates a standard production resistor, 150 ohm 5% tolerance, with a temperature coefficient of +200 ppm, and a tin/lead over nickel termination finish supplied on a waffle carrier. The resistance value notation uses a system where the last digit specifies the number of zeros to add. The codes for tolerance and termination finish are clearly delineated, with several options presented, including those compliant with RoHS.

Mechanical Specifications:

The datasheet tabulates the mechanical dimensions of the chip resistors, providing measurements in both inches and millimeters for length, thickness, top termination, bottom termination, gap, and weight. Notably, the resistor’s approximate weight is given as 0.00069 grams.

Recommended Mounting Pads:

Specific dimensions for recommended mounting pads are provided to guide the proper installation of the resistors during the circuit assembly process.

Contact Information:

State of the Art, Inc.’s details such as the address, phone, fax, and toll-free numbers are provided. Additionally, the contact information is accompanied by the date of the document, underscoring the company’s dynamic approach to product information with a directive that specifications are subject to change without notice.