TE Connectivity AMP Connectors 1-644633-0 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 1-644633-0 is a rectangular connector header designed for through-hole, right-angle mounting applications. This connector features a 10-position configuration with 0.156" (3.96mm) pitch spacing, suitable for board-to-cable/wire interconnections in general purpose and industrial applications. The part operates across a temperature range of -55°C to 105°C with a 600VAC voltage rating.

The 1-644633-0 carries an obsolete product status, which necessitates identification of active equivalent alternatives to ensure continued design support, procurement availability, and long-term supply chain reliability. Locating functionally compatible substitutes is critical for new designs, redesigns, and ongoing production requirements.

Substiute Parts

1-644633-0

TE Connectivity AMP ConnectorsIn Stock: 8041-644633-0 Datasheet

Current PartRFQ

4-644633-0

TE Connectivity AMP ConnectorsIn Stock: 8714-644633-0 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 1-644633-0 is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Pitch - Mating: 0.156" (3.96mm)
• Number of Positions: 10
• Voltage Rating: 600VAC
• Contact Type: Male Pin
• Connector Type: Header

Mechanical Parameters:

• Mounting Type: Through Hole, Right Angle
• 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

Environmental Parameters:

• Operating Temperature: -55°C ~ 105°C
• Material Flammability Rating: UL94 V-0
• Series: MTA-156

Substitute parts must maintain identical values across all listed parameters to ensure direct functional compatibility without circuit redesign or mechanical rework.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity AMP Connectors 4-644633-0 serves as the direct functional equivalent to the obsolete 1-644633-0 part number. Both connectors share identical electrical, mechanical, and environmental specifications within the MTA-156 series, ensuring direct interchangeability in existing circuit designs and PCB layouts.

Product Status Consideration: The 1-644633-0 carries obsolete status, indicating discontinued manufacturing and limited long-term availability. The 4-644633-0 maintains active product status with current manufacturing support and established supply chain availability.

Compliance Advantage: The 4-644633-0 achieves RoHS compliance, whereas the 1-644633-0 is RoHS non-compliant. This distinction becomes significant for applications subject to RoHS regulatory requirements or customer specifications mandating RoHS-compliant components.

Contact Finish Specification: The primary technical difference between these parts exists in the post contact finish composition. The 1-644633-0 specifies Tin-Lead finish on the post contacts, while the 4-644633-0 specifies Tin finish. Both maintain identical finish thickness (150.0µin / 3.81µm) and identical gold mating contact finish. This substitution aligns with industry-wide transition away from lead-containing finishes.

Selection Basis: For new designs, redesigns, or production continuity, the 4-644633-0 is the appropriate selection. The part maintains full electrical and mechanical compatibility while offering improved regulatory compliance and active manufacturing status.

Frequently Asked Questions (FAQ)

Q: Can the 4-644633-0 directly replace the 1-644633-0 in existing designs?

A: Yes. The 4-644633-0 maintains identical electrical specifications (600VAC, 10-position, 0.156" pitch), mechanical configuration (through-hole right-angle mounting, shrouded 1-wall design), and environmental ratings (-55°C to 105°C, UL94 V-0). No circuit redesign or PCB rework is required.

Q: What is the significance of the different part number prefix (1- versus 4-)?

A: The prefix variation indicates different manufacturing revisions or product generations within the MTA-156 series. The base number 644633 remains constant, confirming functional equivalence. The 4-644633-0 represents a current production variant.

Q: Does the Tin versus Tin-Lead post finish affect electrical performance?

A: No. Both finishes maintain identical thickness (150.0µin / 3.81µm) and provide equivalent electrical conductivity and contact resistance characteristics. The Tin finish in the 4-644633-0 reflects industry compliance with lead-reduction initiatives.

Q: Is the 4-644633-0 suitable for applications requiring RoHS compliance?

A: Yes. The 4-644633-0 carries RoHS Compliant status. The 1-644633-0 is RoHS non-compliant. Applications subject to RoHS regulatory requirements or customer specifications must use the 4-644633-0.

Q: Are there any mechanical compatibility concerns when substituting these parts?

A: No. Both connectors share identical mechanical specifications: contact length (0.450" mating / 0.125" post), insulation height (0.300"), contact shape (square), shrouding configuration, and mounting orientation. PCB footprints and mating connector interfaces remain unchanged.

Q: What is the current availability status of each part?

A: The 1-644633-0 is obsolete with limited remaining inventory. The 4-644633-0 maintains active product status with established supply chain availability and current manufacturing support.

Q: Are both parts rated for the same voltage and temperature ranges?

A: Yes. Both connectors operate at 600VAC voltage rating and -55°C to 105°C temperature range. Environmental performance specifications are identical.

Q: Can these connectors be used interchangeably with different mating connectors?

A: No. Both parts are headers designed to mate with MTA-156 series receptacles. Mating connector compatibility is determined by the 0.156" (3.96mm) pitch specification and 10-position configuration, which are identical between these parts.