TE Connectivity AMP Connectors 4-644694-3 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 4-644694-3 is a rectangular connector header manufactured in the MTA-100 series. This through-hole, right-angle connector features 13 positions at 0.100" (2.54mm) pitch and is designed for board-to-cable/wire applications. The part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain functional compatibility while meeting current procurement and compliance requirements.

Substiute Parts

4-644694-3

TE Connectivity AMP ConnectorsIn Stock: 11164-644694-3 Datasheet

Current PartRFQ

929500-01-13

3MIn Stock: 840929500-01-13 Datasheet

SimilarRFQ

929500-01-13-RK

3MIn Stock: 1164929500-01-13-RK Datasheet

SimilarRFQ

929550-01-13-EU

3MIn Stock: 787929550-01-13-EU Datasheet

SimilarRFQ

929550-01-13-I

3MIn Stock: 918929550-01-13-I Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 4-644694-3 is determined by the following critical parameters:

Primary Compatibility Criteria:

• Connector Type: Header with Male Pin contacts
• Pitch - Mating: 0.100" (2.54mm)
• Number of Positions: 13
• Number of Rows: 1
• Mounting Type: Through Hole, Right Angle
• Contact Shape: Square
• Material Flammability Rating: UL94 V-0

All identified substitute parts meet these core electrical and mechanical parameters. The substitute parts are manufactured by 3M in the 929 series and are classified as active products, providing long-term availability and supply chain stability compared to the obsolete TE Connectivity original.

Variations in secondary parameters such as contact finish material, insulation material composition, and contact dimensions exist among substitutes and reflect different design approaches within the same functional category. These variations are documented in the parameter comparison table for engineering evaluation.

Parameter Comparison

Engineering Selection Recommendations

929500-01-13-RK (3M) - Recommended Primary Substitute

The 929500-01-13-RK is the optimal substitute for the obsolete 4-644694-3. This part maintains active product status, ensuring long-term availability and supply chain continuity. It is RoHS Compliant and REACH Unaffected, meeting modern regulatory requirements. The contact finish is Tin with 200.0µin (5.08µm) thickness, providing robust corrosion resistance. The insulation material is PCT, which offers superior thermal and chemical stability compared to standard thermoplastic formulations.

929550-01-13-EU (3M) - Alternative for Enhanced Contact Performance

The 929550-01-13-EU provides gold-plated contacts (10.0µin / 0.25µm thickness) for applications requiring superior electrical conductivity and corrosion resistance. This part is RoHS Compliant and REACH Unaffected. The gold finish is suitable for low-signal applications and environments with potential corrosion exposure. The insulation material is PCT.

929500-01-13 (3M) - Legacy Compatibility Option

The 929500-01-13 is functionally equivalent but carries RoHS non-compliance and REACH Affected status. This part is suitable only for applications where regulatory compliance is not a requirement. Contact finish is Tin-Lead with 100.0µin (2.54µm) thickness.

929550-01-13-I (3M) - Alternative with Gold Contacts

The 929550-01-13-I offers gold-plated contacts similar to the 929550-01-13-EU but with PBT insulation material. This part is RoHS non-compliant and REACH Unaffected. Selection should be based on specific insulation material requirements and regulatory environment.

Operating Temperature Consideration

The original 4-644694-3 operates from -55°C to 105°C. All substitute parts operate from -40°C to 105°C. Applications requiring operation below -40°C require engineering evaluation for alternative solutions.

Frequently Asked Questions (FAQ)

Q: Can the 3M 929 series connectors directly replace the TE Connectivity MTA-100 4-644694-3?

A: Yes, the 3M 929 series connectors are mechanically and electrically compatible. All substitute parts share identical pitch (0.100" / 2.54mm), position count (13), row configuration (1), mounting type (through-hole right-angle), and contact shape (square). The connectors are interchangeable in board-level applications.

Q: What are the key differences between the substitute options?

A: The primary differences are contact finish material, contact finish thickness, insulation material composition, and regulatory compliance status. The 929500-01-13-RK offers Tin finish with PCT insulation and full RoHS/REACH compliance. The 929550-01-13-EU and 929550-01-13-I offer gold-plated contacts for enhanced conductivity. The 929500-01-13 uses Tin-Lead finish but lacks RoHS compliance.

Q: Which substitute should be selected for new designs?

A: For new designs, the 929500-01-13-RK is the recommended choice. It provides RoHS Compliance, REACH Unaffected status, active product availability, and robust Tin contact finish with adequate thickness (200.0µin). This selection ensures regulatory compliance and long-term supply chain stability.

Q: Are there contact length differences between the original and substitutes?

A: Yes. The original 4-644694-3 has a mating contact length of 0.260" (6.60mm) and post length of 0.110" (2.79mm). All 3M substitutes have mating contact length of 0.295" (7.49mm) and post length of 0.130" (3.30mm). These dimensional differences may affect mating depth and board layout. Verify connector cavity and mating interface compatibility before implementation.

Q: What is the operating temperature range difference?

A: The original part operates from -55°C to 105°C. All substitute parts operate from -40°C to 105°C. Applications requiring operation below -40°C cannot use these substitutes without engineering evaluation.

Q: Why do some substitutes have gold-plated contacts?

A: Gold plating (10.0µin / 0.25µm) provides superior electrical conductivity and corrosion resistance compared to Tin finish. Gold-plated contacts are specified for low-signal applications, high-reliability systems, and environments with potential corrosion exposure. Standard Tin finish is adequate for general-purpose applications.

Q: What is the difference between RoHS Compliant and RoHS non-compliant parts?

A: RoHS Compliant parts (929500-01-13-RK and 929550-01-13-EU) meet Restriction of Hazardous Substances regulations and are suitable for applications subject to environmental compliance requirements. RoHS non-compliant parts (929500-01-13 and 929550-01-13-I) contain restricted substances and are limited to applications where regulatory compliance is not mandated.

Q: What does REACH Unaffected status mean?

A: REACH Unaffected status indicates the part does not contain substances of very high concern (SVHC) listed under the Registration, Evaluation, Authorization and Restriction of Chemicals (REACH) regulation. REACH Affected parts may contain listed substances and require additional compliance documentation.

Q: Are the insulation materials interchangeable?

A: The substitute parts use either Polybutylene Terephthalate (PBT) with glass filler or Polycyclohexylenedimethylene Terephthalate (PCT). Both materials meet UL94 V-0 flammability requirements. PCT offers superior thermal stability and chemical resistance. PBT is a standard engineering plastic. Selection depends on specific environmental and thermal requirements of the application.

Q: What is the current rating for the substitute parts?

A: All substitute parts are rated for 2.5A. The original part specifies current rating as "Varies by Wire Gauge," which depends on the mating cable specification. Verify that 2.5A rating is adequate for the intended application.

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

A: The original 4-644694-3 is specified for board-to-cable/wire applications. The substitute parts are specified for board-to-board applications. While mechanically similar, the intended application context differs. Verify mating interface compatibility for your specific use case.