YC 158/358 Chip Resistor Network RoHS Compliant Datasheet

Category: Electronics, Resistors, Yageo USA

Overview

The datasheet outlines the specifications for the RoHS-compliant YC 158/358 series chip resistor network. These resistor networks are constructed using the thick film process and sport lead-free terminations. Common applications include computer memory terminals such as SDRAM and DDRAM, laptops, desktops, consumer electronics like PDAs, PNDs, mobile phones, and telecom equipment.

Ordering and Identification Information

Two product numbering systems are indicated: the YAGEO BRAND ordering code and the GLOBAL PART NUMBER. The part numbers provide series identification, size, tolerance, packing type, temperature coefficient, taping reel, and resistance value. An example for ordering specifies the product series, network type, tolerance, packaging, and resistance value.

Features

Some key features of these resistor networks include RoHS compliance, lead-free terminations, absence of forbidden materials, and halogen-free epoxy. Owing to these specifications, products contribute to reduced environmental hazards and ensure high reliability. They are designed to economize on space within printed circuit boards (PCBs).

Schematic and Technical Components

The resistor networks follow schematic designations where ‘L’ stands for L-type (for YC358) and ‘T’ for T-type (for YC158/358). Tolerance classification is denoted by ‘J’, while packaging type options include paper taping reel ‘R’ for YC158 and embossed taping reel ‘K’ for YC358 models.

Resistance Value Notation

Resistance value notations consist of 2 to 4 digits. Symbols R, K, and M signal the decimal point, with no need to denote the last zero after these symbols (for example, 1K2 rather than 1K20). Examples demonstrate how to read and interpret the resistance code rules.

Packaging and Compliance

Packaging options include a 7-inch diameter reel and a 13-inch diameter reel. The datasheet also emphasizes RoHS compliance across all RSMD (Resistor Surface Mount Device) products, noting the mention of ‘LFP’ for Lead-Free Process in internal and optionally customized labels. An optional code ‘L’ references an optional symbol that can be added to the global part number upon customer request.