TE Connectivity 103166-8 Rectangular Connector Header Equivalent & Substitute Parts

Part Overview

The TE Connectivity 103166-8 is a rectangular connector header manufactured under the AMPMODU Mod II series. This through-hole, right-angle header connector features 20 positions arranged in 2 rows with 0.100" (2.54mm) pitch spacing. The connector is designed for board-to-board or cable applications with shrouded 4-wall construction and solder termination.

The 103166-8 carries an obsolete product status. Locating equivalent substitute parts is necessary to support ongoing maintenance, repair, and production requirements for legacy systems utilizing this connector specification.

Substiute Parts

103166-8

TE Connectivity AMP ConnectorsIn Stock: 1211103166-8 Datasheet

Current PartRFQ

5-103166-8

TE Connectivity AMP ConnectorsIn Stock: 19495-103166-8 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of rectangular connector headers is determined by strict equivalence across all electrical and mechanical parameters. The following parameters establish substitution validity for the 103166-8:

Critical Matching Parameters:

• Connector type (Header)
• Contact type (Male Pin)
• Number of positions (20)
• Number of rows (2)
• Pitch spacing (0.100" / 2.54mm)
• Row spacing (0.100" / 2.54mm)
• Mounting configuration (Through Hole, Right Angle)
• Shrouding design (Shrouded - 4 Wall)
• Termination method (Solder)
• Contact dimensions (Mating length, post length)
• Insulation height
• Contact shape (Square)
• Contact material (Phosphor Bronze)
• Insulation material (Thermoplastic)
• Operating temperature range (-65°C ~ 105°C)
• Current rating (3A)
• Flammability rating (UL94 V-0)
• Fastening type (Detent Lock)
• Series designation (AMPMODU Mod II)

Substitute parts must maintain identical specifications across these parameters to ensure mechanical fit, electrical performance, and functional compatibility within legacy systems.

Parameter Comparison

Engineering Selection Recommendations

The 5-103166-8 serves as a direct functional substitute for the obsolete 103166-8 connector header. Both parts maintain identical electrical and mechanical specifications across all critical parameters including connector type, contact configuration, pitch spacing, mounting orientation, and operating characteristics.

The primary distinction between these parts is product status and compliance posture. The 103166-8 is classified as obsolete and carries "Not applicable" RoHS status. The 5-103166-8 is an active product with RoHS Compliant certification, indicating compliance with Restriction of Hazardous Substances regulations.

The contact finish on the post differs between the two parts: the 103166-8 uses Tin-Lead while the 5-103166-8 uses Tin. Both finishes maintain the same thickness specification of 100.0µin (2.54µm) and are compatible with solder termination processes.

Packaging differs between the parts: the 103166-8 is supplied in bulk format while the 5-103166-8 is supplied in tray packaging. This distinction affects inventory management and handling procedures but does not impact functional performance.

For new designs and ongoing production requiring this connector specification, the 5-103166-8 is the appropriate selection due to its active product status and regulatory compliance. For legacy system maintenance and repair applications, the 5-103166-8 provides functional equivalence to the obsolete 103166-8.

Frequently Asked Questions (FAQ)

Q: Can the 5-103166-8 be used as a direct replacement for the 103166-8 in existing assemblies?

A: Yes. The 5-103166-8 maintains identical mechanical and electrical specifications across all critical parameters. The connector will fit existing mating interfaces and perform identically within the same electrical and thermal operating conditions.

Q: What is the significance of the contact finish difference between Tin-Lead and Tin?

A: Both finishes are compatible with solder termination and provide equivalent electrical performance. The Tin finish on the 5-103166-8 reflects compliance with lead-free manufacturing standards. Both finishes maintain the same thickness specification and are suitable for the same applications.

Q: Why does the 103166-8 show "Not applicable" for RoHS status while the 5-103166-8 is RoHS Compliant?

A: The 103166-8 is an obsolete product predating current RoHS compliance requirements. The 5-103166-8 is an active product manufactured to current regulatory standards, including RoHS Compliance. For applications subject to RoHS requirements, the 5-103166-8 is the appropriate selection.

Q: Does the packaging difference between bulk and tray affect connector performance?

A: No. Packaging format affects handling, storage, and inventory management but does not impact electrical or mechanical performance. The connector specifications and functionality remain identical regardless of packaging format.

Q: Are both parts suitable for the same operating temperature range?

A: Yes. Both the 103166-8 and 5-103166-8 operate across the identical temperature range of -65°C to 105°C and maintain the same current rating of 3A.

Q: What is the base product number relationship between these parts?

A: Both parts share the base product number 103166. The 103166-8 represents the original obsolete configuration, while the 5-103166-8 represents the current active equivalent with updated compliance and manufacturing standards.

Q: Can these connectors be used interchangeably in board-to-board and cable applications?

A: Yes. Both parts are specified for board-to-board or cable style applications with identical shrouding, mounting orientation, and termination characteristics.