TE Connectivity Erni 444375 Equivalent & Substitute Parts

Part Overview

The TE Connectivity Erni 444375 is a 169-position header connector with 2mm press-fit termination designed for backplane applications. This connector features male pins configured in a 5+2 row arrangement with integrated ground positions. The part is classified as obsolete and no longer in active production, necessitating identification of functionally equivalent alternatives for ongoing system support and new designs.

Substiute Parts

444375

TE Connectivity ErniIn Stock: 1200444375 Datasheet

Current PartRFQ

3-5646529-0

TE Connectivity AMP ConnectorsIn Stock: 9883-5646529-0 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 444375 is determined by strict equivalence across the following critical parameters:

Position Configuration: The substitute must provide 169 total positions with the same 125 signal + 44 ground pin distribution.

Pitch Specification: The 0.079" (2.00mm) pitch is a fundamental mechanical requirement that cannot be altered without redesign of mating connectors and PCB layouts.

Connector Type & Termination: Male pin headers with press-fit termination are required to maintain compatibility with existing receptacle connectors and assembly processes.

Mounting Architecture: Through-hole mounting with 5+2 row configuration must be preserved for mechanical fit and electrical performance.

The substitute part 3-5646529-0 meets all these criteria while offering the advantage of active product status and current manufacturing support.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: TE Connectivity AMP Connectors 3-5646529-0

The 3-5646529-0 is the direct functional equivalent to the obsolete 444375. Both connectors share identical mechanical and electrical interface specifications: 169-position configuration, 2mm pitch, male pin header format, and press-fit termination in a 5+2 row arrangement.

Compliance Advantages: The substitute part carries active product status with current manufacturing support. It is RoHS Compliant and carries EAR99 ECCN classification. These certifications ensure compliance with current regulatory requirements and supply chain continuity.

Electrical Performance: The substitute provides documented electrical ratings (1.5 A current, 500Vrms voltage) and operating temperature range (-55°C to 125°C) suitable for backplane connector applications. Gold contact finish with 30.0µin thickness ensures reliable signal integrity.

Inventory Availability: 893 units of the substitute part are in current stock as new original components, providing immediate procurement capability.

Frequently Asked Questions (FAQ)

Q: Can the 3-5646529-0 be used as a direct replacement for the 444375 in existing designs?

A: Yes. Both connectors are mechanically and electrically equivalent across all critical interface parameters: position count, pitch, row configuration, and termination type. No PCB layout or mating connector modifications are required.

Q: What is the significance of the 125 + 44 ground pin distribution?

A: This configuration allocates 125 positions for signal transmission and 44 dedicated ground positions for return paths and shielding. This distribution must be preserved in any substitute to maintain signal integrity and EMI performance.

Q: Are there any packaging differences between the two parts?

A: The 444375 packaging is not specified in available documentation. The 3-5646529-0 is supplied in bulk packaging. Confirm packaging requirements with your procurement process.

Q: Why is the 444375 classified as obsolete?

A: The 444375 has been discontinued by TE Connectivity Erni. The 3-5646529-0 from TE Connectivity AMP Connectors represents the current production equivalent within the TE Connectivity product portfolio.

Q: What compliance certifications apply to the substitute part?

A: The 3-5646529-0 is RoHS Compliant with Moisture Sensitivity Level 1 (unlimited shelf life). REACH status is vendor undefined. HTSUS classification is 8536.69.4040.

Q: Is the press-fit termination process identical between both parts?

A: Both connectors use press-fit termination technology. Verify that existing press-fit tooling and assembly parameters are compatible with the substitute part specifications before production implementation.