TE Connectivity AMP Connectors 3-644629-3 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 3-644629-3 is a rectangular connector header designed for through-hole, right-angle mounting applications. This connector features a 3-position configuration with 0.156" (3.96mm) pitch spacing, suitable for board-to-cable/wire connections in general purpose and industrial applications. The part is classified as obsolete, necessitating identification of active equivalent alternatives to maintain design continuity and ensure ongoing component availability for production and field service requirements.

Substiute Parts

3-644629-3

TE Connectivity AMP ConnectorsIn Stock: 10983-644629-3 Datasheet

Current PartRFQ

3-644633-3

TE Connectivity AMP ConnectorsIn Stock: 11763-644633-3 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 3-644629-3 is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Voltage Rating: 600VAC
• Operating Temperature Range: -55°C ~ 105°C
• Contact Material: Copper Alloy
• Contact Finish - Mating: Gold (30.0µin / 0.76µm)
• Contact Finish - Post: Tin (150.0µin / 3.81µm)

Mechanical Parameters:

• Series: MTA-156
• Number of Positions: 3
• Pitch - Mating: 0.156" (3.96mm)
• Connector Type: Header
• Contact Type: Male Pin
• Mounting Type: Through Hole, Right Angle
• Termination: Solder
• Fastening Type: Friction Lock
• Shrouding: Shrouded - 1 Wall
• Contact Length - Mating: 0.450" (11.43mm)
• Contact Length - Post: 0.125" (3.18mm)
• Insulation Height: 0.300" (7.62mm)
• Contact Shape: Square
• Insulation Material: Thermoplastic, Glass Filled
• Insulation Color: Natural

Compliance Parameters:

• RoHS Status: ROHS3 Compliant
• Material Flammability Rating: UL94 V-0
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Parameter Comparison

Engineering Selection Recommendations

The 3-644633-3 is the direct equivalent substitute for the obsolete 3-644629-3. Both parts are manufactured by TE Connectivity AMP Connectors within the MTA-156 series and share identical electrical, mechanical, and compliance specifications.

Substitution Basis:

The 3-644633-3 maintains full electrical compatibility with identical voltage rating (600VAC), operating temperature range (-55°C ~ 105°C), and contact material specifications. Mechanical compatibility is confirmed through identical pitch spacing (0.156" / 3.96mm), position count (3), mounting configuration (through-hole right-angle), and contact dimensions.

Compliance Alignment:

Both parts meet ROHS3 compliance requirements, UL94 V-0 flammability rating, and carry MSL 1 (Unlimited) moisture sensitivity classification. The substitute part maintains the same contact finish specifications: gold plating on mating surfaces (30.0µin / 0.76µm) and tin plating on posts (150.0µin / 3.81µm).

Product Status Advantage:

The 3-644633-3 carries Active product status, ensuring ongoing availability and manufacturing support, whereas the 3-644629-3 is classified as Obsolete. The substitute part is available in bulk packaging with 1127 pieces in current inventory.

Additional Feature:

The 3-644633-3 includes a Board Guide feature not specified in the main part documentation. This feature provides enhanced board-level positioning and alignment during assembly operations.

Frequently Asked Questions (FAQ)

Q: Can the 3-644633-3 be used as a direct replacement for the 3-644629-3 in existing designs?

A: Yes. The 3-644633-3 is electrically and mechanically equivalent to the 3-644629-3 across all critical parameters including voltage rating, operating temperature, pitch spacing, contact configuration, and termination method. Both parts are from the same MTA-156 series and share identical dimensional specifications.

Q: What is the primary reason for substitution?

A: The 3-644629-3 is classified as Obsolete, while the 3-644633-3 is Active. Substitution ensures access to a component with ongoing manufacturing support and guaranteed availability.

Q: Are there packaging differences between these parts?

A: The 3-644629-3 packaging specification is not provided in the documentation. The 3-644633-3 is supplied in Bulk packaging. Confirm packaging requirements with your procurement specifications.

Q: Does the Board Guide feature on the 3-644633-3 affect compatibility?

A: The Board Guide feature on the 3-644633-3 is an additional design element that enhances board-level positioning. This feature does not compromise compatibility with applications designed for the 3-644629-3 and provides improved assembly alignment.

Q: Are the compliance certifications identical?

A: Yes. Both parts are ROHS3 Compliant, carry UL94 V-0 flammability rating, and have MSL 1 (Unlimited) moisture sensitivity classification. Both are classified under ECCN EAR99 and HTSUS 8536.69.4040.

Q: What is the current inventory status?

A: The 3-644633-3 has 1127 pieces in current inventory as new original stock. The 3-644629-3 has 1075 pieces available but is obsolete.

Q: Are the contact finish specifications the same?

A: Yes. Both parts feature gold plating on mating contacts (30.0µin / 0.76µm thickness) and tin plating on posts (150.0µin / 3.81µm thickness). Contact material is copper alloy for both parts.

Q: Can these parts be intermixed in the same assembly?

A: Yes. The 3-644633-3 is fully compatible with the 3-644629-3 across all electrical and mechanical parameters. Both parts operate within the same temperature range (-55°C ~ 105°C) and voltage rating (600VAC).