TE Connectivity 1-647166-4 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 1-647166-4 is a rectangular connector header designed for surface mount applications. This connector is a shrouded, single-row, 14-position header with 0.100" (2.54mm) pitch spacing, part of the MTA-100 series. The component features male pins with tin-lead contact finish and is rated for 250VAC operation across a temperature range of -55°C to 105°C. The part maintains active product status and is available in high inventory volume. Identifying equivalent and substitute parts is necessary when addressing specific compliance requirements, such as RoHS compliance, or when alternative position configurations are required for system design flexibility.

Substiute Parts

1-647166-4

TE Connectivity AMP ConnectorsIn Stock: 7771-647166-4 Datasheet

Current PartRFQ

3-647166-4

TE Connectivity AMP ConnectorsIn Stock: 72523-647166-4 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for rectangular connector headers is determined by compatibility across core electrical and mechanical parameters. The primary substitution criterion is the MTA-100 series designation, which ensures mechanical and electrical compatibility within the connector family. All substitute parts must maintain identical specifications for pitch (0.100" / 2.54mm), mounting type (surface mount), shrouding configuration (shrouded - 1 wall), contact type (male pin), termination method (solder), operating temperature range (-55°C to 105°C), voltage rating (250VAC), and material flammability rating (UL94 V-0).

The key differentiating parameter is the number of positions. The main part 1-647166-4 features 14 positions, while substitute parts may vary in position count while maintaining all other electrical and mechanical characteristics. Position count variation allows for design flexibility without compromising connector integrity or performance specifications.

Parameter Comparison

Engineering Selection Recommendations

The 1-647166-4 and 3-647166-4 are functionally equivalent within the MTA-100 connector family, with the primary distinction being position count and RoHS compliance status. Both parts maintain active product status and share identical electrical and mechanical specifications across all critical parameters including pitch, mounting type, operating temperature, voltage rating, and flammability classification.

Selection between these parts depends on application requirements. The 1-647166-4 (14-position) is suitable for applications requiring a higher pin count connector with tin-lead contact finish. The 3-647166-4 (4-position) provides RoHS compliance and is appropriate for applications with regulatory requirements mandating RoHS-compliant components. The 3-647166-4 also features tin contact finish on both mating and post surfaces, compared to the tin-lead finish of the main part.

Both parts are available in high inventory volume and maintain identical moisture sensitivity levels, indicating equivalent handling and storage requirements.

Frequently Asked Questions (FAQ)

Q: Can the 3-647166-4 (4-position) be used as a direct replacement for the 1-647166-4 (14-position)?

A: The 3-647166-4 is not a direct replacement due to the difference in position count. The 1-647166-4 accommodates 14 signal connections, while the 3-647166-4 accommodates only 4 connections. Selection depends on the specific pin count requirement of the application. Both parts are mechanically and electrically compatible within the MTA-100 series when position count matches the design requirement.

Q: What is the significance of the RoHS compliance difference between these parts?

A: The 1-647166-4 is RoHS non-compliant, while the 3-647166-4 is RoHS compliant. RoHS compliance indicates the absence of restricted substances including lead, cadmium, mercury, and certain brominated flame retardants. Applications subject to RoHS regulations or customer specifications requiring RoHS-compliant components must use the 3-647166-4. The 1-647166-4 contains tin-lead contact finish, which includes lead.

Q: Are the contact finishes identical between these parts?

A: No. The 1-647166-4 features tin-lead contact finish on both mating and post surfaces. The 3-647166-4 features tin contact finish on both mating and post surfaces. This difference is consistent with the RoHS compliance distinction, as tin-lead finishes are restricted under RoHS regulations.

Q: Do these connectors share the same pitch and mounting specifications?

A: Yes. Both the 1-647166-4 and 3-647166-4 maintain identical pitch (0.100" / 2.54mm), mounting type (surface mount), shrouding configuration (shrouded - 1 wall), and all other mechanical specifications. The only differences are position count and contact finish composition.

Q: What is the operating temperature range for both connectors?

A: Both connectors operate across the identical temperature range of -55°C to 105°C, ensuring thermal compatibility in equivalent applications.

Q: Are inventory levels a consideration for part selection?

A: The 1-647166-4 has 760 pieces in stock, while the 3-647166-4 has 7219 pieces in stock. Availability may influence procurement decisions, though both parts maintain active product status.