TE Connectivity AMP Connectors 3-644761-3 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 3-644761-3 is a rectangular connector header designed for through-hole, right-angle mounting applications. This shrouded, single-wall header connector accommodates 3 positions at 0.156" (3.96mm) pitch and features male pin contacts with gold-plated mating surfaces and tin-plated posts. The connector is rated for 600VAC operation across an industrial temperature range of -55°C to 105°C and is classified as RoHS Compliant with UL94 V-0 flammability rating. The product maintains Active status in the TE Connectivity MTA-156 series. Equivalent and substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design flexibility permits component selection from qualified manufacturers.

Substiute Parts

3-644761-3

TE Connectivity AMP ConnectorsIn Stock: 10253-644761-3 Datasheet

Current PartRFQ

0026481036

MolexIn Stock: 14010026481036 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 3-644761-3 with the Molex 0026481036 is based on alignment of the following critical parameters:

Matching Parameters:

• Pitch - Mating: 0.156" (3.96mm)
• Number of Positions: 3
• Number of Rows: 1
• Connector Type: Header
• Contact Type: Male Pin
• Mounting Type: Through Hole, Right Angle
• Shrouding: Shrouded - 1 Wall
• Termination: Solder
• Fastening Type: Friction Lock
• Contact Shape: Square
• Material Flammability Rating: UL94 V-0
• Moisture Sensitivity Level: 1 (Unlimited)
• ECCN Classification: EAR99
• HTSUS Code: 8536.69.4040

Both connectors are designed for board-to-cable or board-to-board applications within industrial, general purpose, and specialized environments. The Molex part is qualified for automotive and medical applications in addition to industrial use. Both parts maintain Active product status and comply with applicable regulatory standards.

Parameter Comparison

Engineering Selection Recommendations

Both the TE Connectivity 3-644761-3 and Molex 0026481036 are Active products with UL94 V-0 flammability certification and MSL 1 (Unlimited) moisture sensitivity ratings, qualifying them for general industrial applications. Both parts comply with RoHS standards and share identical ECCN and HTSUS classifications.

The TE Connectivity part specifies a 600VAC voltage rating and -55°C to 105°C operating temperature range. The Molex part does not provide explicit voltage or temperature specifications in the available data.

The TE Connectivity part features gold-plated mating contacts on a copper alloy base with thermoplastic glass-filled insulation. The Molex part features tin-plated mating contacts on a brass base with polyester insulation. Contact finish and material composition differences may influence performance in specific corrosive or high-reliability environments.

The Molex part is qualified for automotive and medical applications, whereas the TE Connectivity part is specified for general purpose and industrial use. The Molex part includes breakaway connector capability, providing additional design flexibility.

Selection between these parts should account for application-specific requirements regarding voltage rating, operating temperature range, contact finish durability, and industry certifications.

Frequently Asked Questions (FAQ)

Q: What are the critical parameters that determine substitution compatibility between the TE Connectivity 3-644761-3 and Molex 0026481036?

A: The critical parameters are pitch (0.156" / 3.96mm), number of positions (3), number of rows (1), connector type (header), contact type (male pin), mounting type (through hole, right angle), shrouding (shrouded - 1 wall), termination (solder), and fastening type (friction lock). Both parts meet these specifications and are therefore functionally equivalent for basic board-to-cable and board-to-board interconnection applications.

Q: Are there dimensional differences between these two connectors?

A: Yes. The Molex 0026481036 has longer contact lengths and greater insulation height compared to the TE Connectivity 3-644761-3. Specifically, the Molex mating contact length is 0.450" (11.43mm) versus 0.400" (10.16mm) for TE Connectivity, and the Molex insulation height is 0.355" (9.02mm) versus 0.300" (7.62mm) for TE Connectivity. These dimensional differences may affect board layout and mating depth considerations.

Q: What is the difference in contact finish between these parts?

A: The TE Connectivity 3-644761-3 features gold-plated mating contacts (30.0µin / 0.76µm thickness) on a copper alloy base. The Molex 0026481036 features tin-plated mating contacts (60.0µin / 1.52µm thickness) on a brass base. Gold plating typically provides superior corrosion resistance and lower contact resistance, while tin plating offers cost efficiency and adequate performance in standard industrial environments.

Q: Does the Molex part support the same voltage and temperature specifications as the TE Connectivity part?

A: The TE Connectivity 3-644761-3 is rated for 600VAC operation across -55°C to 105°C. The Molex 0026481036 does not provide explicit voltage or temperature specifications in the available technical data. Applications requiring confirmed voltage or temperature ratings should reference the TE Connectivity part or obtain detailed specifications from Molex.

Q: What is the significance of the breakaway feature on the Molex connector?

A: The Molex 0026481036 includes breakaway connector capability, allowing individual positions to be separated if required. The TE Connectivity 3-644761-3 does not specify this feature. The breakaway capability provides design flexibility for applications requiring modular or reconfigurable connector arrangements.

Q: Are both parts RoHS compliant?

A: Yes. The TE Connectivity 3-644761-3 is RoHS Compliant. The Molex 0026481036 is ROHS3 Compliant. Both parts meet RoHS requirements and are suitable for applications subject to RoHS regulations.

Q: What is the inventory availability for these parts?

A: The TE Connectivity 3-644761-3 has 987 pieces in stock. The Molex 0026481036 has 1375 pieces in stock. Both parts are available as new original components in bulk packaging.

Q: Can the Molex part be used in automotive or medical applications?

A: The Molex 0026481036 is qualified for automotive, general purpose, industrial, medical, and telecommunications applications. The TE Connectivity 3-644761-3 is specified for general purpose and industrial applications. If automotive or medical qualification is required, the Molex part provides documented suitability for these markets.