CERAMIC CHIP MIL-PRF-123

Category: Capacitors, Electronics, Kemet Electronics Corporation

KEMET Ceramic Chip Capacitors Overview

This datasheet provides detailed specifications for KEMET’s Ceramic Chip Capacitors, conforming to the MIL-PRF-123 standard. These capacitors are designed with unique charge characteristics and are available with various termination options, capacitance values, and tolerances. The datasheet emphasizes the dimensions, marking, ordering information, and performance attributes pertaining to the capacitors.

Capacitor Outline Drawings and Dimensions

The dimensions of the capacitors are specified in inches, with slight tolerances outlined for different chip sizes. These sizes include the Military Chip Equivalent sizes such as 0805, 1210, 1808, 2225, 1206, 1812, and 1825, each with a designated KEMET Style number from CKS51 to CKS57. Additional specifications for the capacitors involve thickness, length, width, bandwith tolerance, and maximum dimensions.

Marking and Capacitor Identification

Each capacitor is laser-marked in a contrasting color with the KEMET trademark followed by a 2-digit capacitance symbol for clear identification.

KEMET Ordering Information

The ordering code is broken down into several components such as ceramic chip size, termination type, failure rate, temperature characteristic, capacitance, tolerance, and working voltage. The termination is denoted as either H for Nickel Guarded, Solder-Coated (Sn60) or L for 70/30 Tin/Lead Plated. The datasheet table elucidates the nomenclature used to specify each attribute for ordering.

Capacitance and Tolerances

Capacitance is presented in a picofarad (pF) code system, with tolerance designations ranging from ±0.25pF to ±10%. These tolerances are indicated by a single letter, with options such as C, D, F, J, and K. The table highlights the connection between these capacitance and tolerance codes and their respective meanings.

Voltage and Temperature Characteristics

The datasheet categorizes the capacitors based on their stability under temperature changes, defining two types: Ultra Stable, with a 55°C to +125°C range and a capacitance change of 15 ppm/°C, and Stable, with the same temperature range but a 25% capacitance change. The voltage ratings available for the capacitors are either 50 or 100 volts, as designated in the specification.

Military Specifications and Style Numbers

The military specification number MIL-PRF-123 provides a standard reference, and each part’s characteristics are indicated by a modification number or slash sheet number. Direct correlations between KEMET’s style numbers and military chip sizes are provided to facilitate cross-referencing and compliance.

Contact information for KEMET Electronics Corporation is included, offering a point of reference for further inquiries or orders.