TE Connectivity 3-644466-9 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 3-644466-9 is a 9-position rectangular receptacle connector from the MTA-156 series, designed for IDC (Insulation Displacement Contact) termination with 20 AWG discrete or ribbon cable. This connector features a feed-through design with polarizing key and tin contact finish. The part is currently active in production with RoHS compliance certification.

Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the connector specification, allowing for direct functional replacement in applications where the primary part is unavailable or inventory constraints require alternative sourcing.

Substiute Parts

3-644466-9

TE Connectivity AMP ConnectorsIn Stock: 8243-644466-9 Datasheet

Current PartRFQ

3-643818-9

TE Connectivity AMP ConnectorsIn Stock: 18433-643818-9 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 3-644466-9 is determined by strict equivalence across the following critical parameters:

• Connector Type & Contact Configuration: Receptacle with female socket contacts
• Position Count & Pitch: 9 positions at 0.156" (3.96mm) pitch
• Termination Method: IDC cable termination for 20 AWG wire
• Series Classification: MTA-156 series designation
• Contact Material & Finish: Tin plating at 80.0µin (2.03µm) thickness
• Mounting & Fastening: Free hanging in-line configuration with locking ramp fastening

The substitute part 3-643818-9 maintains electrical and mechanical compatibility across all these parameters. The primary distinction between the main part and substitute is the connector end configuration (feed-through versus closed end) and RoHS certification revision level, neither of which affects functional interchangeability in standard applications.

Parameter Comparison

Engineering Selection Recommendations

Both the 3-644466-9 and 3-643818-9 are active production parts with full regulatory compliance. The 3-644466-9 features a feed-through connector body design, while the 3-643818-9 provides a closed-end configuration. Selection between these parts depends on the specific application requirements for connector body style.

The 3-643818-9 carries ROHS3 certification, representing the current RoHS compliance standard, while the 3-644466-9 maintains RoHS compliance. Both parts satisfy MSL 1 moisture sensitivity requirements and share identical electrical and mechanical specifications for IDC termination, contact configuration, and pitch geometry.

Current inventory levels show 1766 units of the 3-643818-9 available compared to 758 units of the 3-644466-9, providing supply flexibility for production planning.

Frequently Asked Questions (FAQ)

Q: Can the 3-643818-9 be used as a direct replacement for the 3-644466-9?

A: Yes. Both connectors maintain identical electrical and mechanical specifications across all critical parameters including position count, pitch, contact type, wire gauge, termination method, and contact finish. The primary difference is the connector body configuration (feed-through versus closed-end), which does not affect functional interchangeability in standard IDC applications.

Q: What is the difference between feed-through and closed-end connector configurations?

A: The 3-644466-9 features a feed-through design allowing signal pass-through capability, while the 3-643818-9 provides a closed-end configuration. Selection depends on application requirements for connector body style and signal routing needs.

Q: Are both parts RoHS compliant?

A: Yes. The 3-644466-9 is RoHS compliant, and the 3-643818-9 is ROHS3 compliant. Both meet current regulatory requirements for hazardous substance restrictions.

Q: What wire gauges are compatible with these connectors?

A: Both connectors are specified for 20 AWG wire with IDC termination. They accommodate discrete or ribbon cable configurations.

Q: Do these connectors require any special handling or storage conditions?

A: Both connectors carry MSL 1 (Unlimited) moisture sensitivity classification, indicating no special moisture control requirements during storage or handling.

Q: What is the pitch specification for these connectors?

A: Both connectors operate at 0.156" (3.96mm) pitch, which is the standard spacing for the MTA-156 series rectangular connector family.