TE Connectivity AMP Connectors 644739-1 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 644739-1 is a rectangular connector header designed for through-hole mounting applications. This connector features 11 positions with 0.156" (3.96mm) pitch spacing, shrouded single-wall design, and solder termination. The part operates across a temperature range of -55°C to 105°C and carries a 600VAC voltage rating, making it suitable for general purpose and industrial applications.

The 644739-1 is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure component availability, and support ongoing production and maintenance requirements for systems utilizing this connector type.

Substiute Parts

644739-1

TE Connectivity AMP ConnectorsIn Stock: 722644739-1 Datasheet

Current PartRFQ

0026481111

MolexIn Stock: 6840026481111 Datasheet

SimilarRFQ

0026503129

MolexIn Stock: 10900026503129 Datasheet

SimilarRFQ

0416610033

MolexIn Stock: 6710416610033 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of rectangular connectors is determined by alignment of critical electrical and mechanical parameters. The following parameters establish substitution validity for the 644739-1:

Primary Substitution Criteria:

• Pitch - Mating: 0.156" (3.96mm) — must match exactly
• Number of Positions: 11 — must match for direct substitution
• Contact Type: Male Pin — must match
• Mounting Type: Through Hole — must match
• Termination: Solder — must match
• Contact Shape: Square — must match
• Material Flammability Rating: UL94 V-0 — must match

Secondary Compatibility Factors:

• Operating Temperature range compatibility
• Voltage Rating compatibility
• RoHS and MSL compliance status
• Contact finish and material composition

The substitute parts listed below meet the primary substitution criteria with variations in secondary parameters that do not compromise functional equivalence within the specified application envelope.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes (11-Position Connectors):

The Molex 0026481111 and Molex 0416610033 are direct functional equivalents to the TE Connectivity 644739-1. Both parts maintain the critical 11-position, 0.156" (3.96mm) pitch configuration with through-hole solder termination and UL94 V-0 flammability rating. Both substitute parts carry active product status, ensuring ongoing availability and supply chain continuity.

The 0026481111 features tin-plated mating contacts and brass contact material with polyester glass-filled insulation. The 0416610033 provides gold-plated mating contacts with enhanced corrosion resistance, while maintaining the same brass contact material and polyester glass-filled insulation. Both parts are ROHS3 compliant and carry MSL 1 rating.

Alternative Configuration (12-Position Connector):

The Molex 0026503129 provides a 12-position variant of the same connector family. This part shares the identical 0.156" (3.96mm) pitch, through-hole solder termination, and UL94 V-0 rating. The 12-position configuration accommodates applications requiring one additional contact position while maintaining mechanical and electrical compatibility with the connector family. This part is active and ROHS3 compliant.

Compliance and Availability:

All substitute parts maintain UL94 V-0 flammability certification and MSL 1 moisture sensitivity rating, ensuring compliance with industrial and general purpose application requirements. The active product status of all Molex alternatives guarantees component availability and long-term supply support, addressing the obsolescence of the original TE Connectivity part.

Frequently Asked Questions (FAQ)

Q: Can the Molex 0026481111 be used as a direct replacement for the TE Connectivity 644739-1?

A: Yes. The 0026481111 matches all primary substitution criteria: 11 positions, 0.156" (3.96mm) pitch, male pin contacts, through-hole mounting, solder termination, square contact shape, and UL94 V-0 flammability rating. The part is active and ROHS3 compliant, providing superior supply chain continuity compared to the obsolete 644739-1.

Q: What is the difference between the Molex 0026481111 and 0416610033?

A: Both parts are 11-position connectors with identical pitch and mounting specifications. The primary difference is the mating contact finish: the 0026481111 features tin plating, while the 0416610033 features gold plating. Gold plating provides enhanced corrosion resistance in applications exposed to moisture or corrosive environments. Both parts are functionally equivalent for standard industrial applications.

Q: Why is the Molex 0026503129 listed as a substitute if it has 12 positions instead of 11?

A: The 0026503129 is listed as an alternative configuration option, not a direct replacement. It maintains the same 0.156" (3.96mm) pitch, through-hole solder termination, and UL94 V-0 rating. The 12-position design accommodates applications requiring additional contact capacity while preserving mechanical and electrical compatibility with the connector family. Direct substitution requires the 11-position variants (0026481111 or 0416610033).

Q: Are all substitute parts RoHS compliant?

A: Yes. The TE Connectivity 644739-1 is RoHS Compliant. All Molex substitute parts (0026481111, 0416610033, and 0026503129) are ROHS3 Compliant, meeting current RoHS directive requirements and ensuring compatibility with modern supply chain and regulatory standards.

Q: What is the moisture sensitivity level for these connectors?

A: All parts listed carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions. These connectors can be stored and handled under standard industrial conditions without special moisture control measures.

Q: Can these connectors be used in automotive applications?

A: The TE Connectivity 644739-1 is specified for general purpose and industrial applications. The Molex substitute parts (0026481111, 0416610033, and 0026503129) are rated for automotive, general purpose, industrial, medical, and telecommunications applications, providing broader application flexibility.

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

A: The TE Connectivity 644739-1 operates from -55°C to 105°C. Operating temperature specifications are not provided for the Molex substitute parts in the available data; however, both manufacturers' connectors in this family are designed for industrial temperature ranges compatible with the original part's specifications.