3M Four-Wall Header 3000 Series Datasheet

Category: 3M, Connectors, Electronics

The datasheet provides detailed information on the 3M Four-Wall Header 3000 Series connectors. These components are designed for use in military applications and come with various options like 3M’s 3518 & N3518 polarizing keys for proper orientation and optional ejector latches for ease of use. The headers include mounting holes for stable attachment to the motherboard and optional polarizing posts. For soldering, high temperature insulators suitable for “no lead” operations and a solder tail option are available.

Physical Characteristics

The insulators in the connectors come in two types of materials: glass-filled polyester (PBT) and a high-temperature option using glass-filled polyester (PCT). They possess a flammability rating of UL 94V-0 and are offered in gray color for PBT and black for PCT. Contact parts are made from a copper alloy with a nickel underplate and gold plating on the contact area for better conductivity and tin-lead or matte tin for the solder tails. Each piece is marked with the 3M logo, a part identification number, and an orientation triangle.

Electrical Specifications

The current rating of these connectors varies based on how many contacts are powered, ranging from 1.75A to 5.00A, under certain operating conditions where a maximum temperature rise is specified. Insulation resistance exceeds 1×10^9 ohms at 500 VDC and can withstand voltage up to 1,000 Vrms at sea level. The headers are designed to operate within a temperature range of -65°C to +105°C.

Environmental and Process Ratings

The PCT insulator version can withstand up to 260°C (per J-STD-020C) for single-pass soldering processes, while the PBT version is rated for a maximum temperature of 191°C, suitable for solder wave processes only. The high-temperature PCT versions also have a specific Moisture Sensitivity Level rating.

Compliance and Ordering

The datasheet emphasizes compliance with RoHS standards, directing readers to the Regulatory Information Appendix (RIA) on the 3M website for further compliance details. Users interested in technical, sales, or ordering information are encouraged to call the given phone number or visit the 3M Electronic Solutions Division website.

The document provides a detailed look at the 3M Four-Wall Header 3000 Series specifications necessary for design engineers and purchasers to evaluate the connector for their needs. The datasheet mentions the last date of modification as April 4, 2011, and is part of a four-sheet series (TS-0772-M Sheet 1 of 4).

All these attributes make the 3M connectors suitable for a range of demanding applications where reliable interconnections are critical, and exposure to harsh environmental conditions is expected.