Overview of YAGEO YC 158/358 Series Chip Resistor Network
The YAGEO YC 158/358 series is a range of chip resistor networks designed for use in various electronic applications, with an emphasis on meeting RoHS compliance standards. The product is manufactured using a thick film process and features lead-free terminations, ensuring adherence to environmental regulations by avoiding hazardous substances. Primary applications include memory terminals for SDRAM and DDRAM in computers, consumer electronics like PDAs and PNDs, as well as mobile phones and telecom equipment.
Product Features
The YC 158/358 series resistor networks boast several features that contribute to reduced environmental impact and improved reliability of associated devices. These include:
- RoHS compliance with lead-free terminations
- Exclusion of Pb-glass in electrodes, with components and glass exempted by RoHS
- Enhancement in equipment reliability
- Conservative use of PCB space
- Halogen-free epoxy usage
- Elimination of materials considered environmentally harmful in products and production processes
Ordering Information and Coding
The series, size, tolerance, packing type, temperature coefficient, and resistance values categorize ordering codes and global part numbers. A detailed definition of the resistance value coding is provided, illustrating how to interpret resistance values using 2 to 4-digit codes with indicators such as ‘R’, ‘K’, ‘M’ to signify the decimal points and magnitudes.
An example given for ordering demonstrates how a specific chip resistor network within the YC 158/358 series can be denoted for a T-type, 1,000Ω with ±5% tolerance, to be supplied on a 7-inch tape reel: “YC158/358TJR-07/K(L)”.
Packaging and Compliance Notes
Options for taping reels include 7-inch and 13-inch diameters for different packaging preferences. All YAGEO’s RSMD products, including the YC 158/358 series, are RoHS compliant. The labeling indicates whether a product is part of the Lead-Free Process (LFP), and customization of this label can be requested by the customer. The optional ‘L’ that may appear at the end of the global part number is used upon customer’s request.
Schematic and Tolerance Details
The datasheet also provides schematic representations for the L-type (YC358) and T-type (YC158/358) configurations, along with a detailed tolerance level designated by the letter ‘J’ to signify ±5% tolerance.
The compact, precise details found in these initial pages of the datasheet deliver essential information for professionals considering the YAGEO YC 158/358 series for efficient design and regulatory-compliant product development in the electronics industry.
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