TE Connectivity 1-644663-0 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 1-644663-0 is a 10 Position Rectangular Receptacle Connector with IDC termination, gold-plated contacts, and 20 AWG wire gauge capacity. This connector belongs to the MTA-156 series and features a 0.156" (3.96mm) pitch with a single row configuration, polarizing key, and closed end design. The part is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing applications and new designs.

Key Parameters

Parameter	Value
Connector Type	Receptacle
Number of Positions	10
Pitch	0.156" (3.96mm)
Number of Rows	1
Cable Termination	IDC
Wire Gauge	20 AWG
Contact Finish	Gold
Contact Finish Thickness	30.0µin (0.76µm)
Features	Closed End, Polarizing Key
Mounting Type	Free Hanging (In-Line)
Fastening Type	Locking Ramp
Series	MTA-156

Substitute Part Grouping Explanation

Substitution eligibility for the 1-644663-0 is determined by strict equivalence across the following critical parameters:

Connector Type & Position Count: Receptacle configuration with 10 positions
Pitch & Row Configuration: 0.156" (3.96mm) pitch with single row layout
Cable Termination Method: IDC termination for ribbon or discrete cable
Wire Gauge Compatibility: 20 AWG wire gauge capacity
Contact Specifications: Gold plating with 30.0µin (0.76µm) thickness
Mechanical Features: Closed end design with polarizing key and locking ramp fastening
Series Designation: MTA-156 series classification

Parts meeting all these parameters are classified as direct substitutes. Variations in product status, packaging format, or compliance certifications do not affect functional interchangeability when all electrical and mechanical parameters remain identical.

Parameter Comparison

Parameter	1-644663-0 (Main Part)	4-644663-0 (Substitute)
Manufacturer	TE Connectivity AMP Connectors	TE Connectivity AMP Connectors
Category	Rectangular Connectors	Rectangular Connectors
Series	MTA-156	MTA-156
Connector Type	Receptacle	Receptacle
Contact Type	Female Socket	Female Socket
Number of Positions	10	10
Pitch	0.156" (3.96mm)	0.156" (3.96mm)
Number of Rows	1	1
Mounting Type	Free Hanging (In-Line)	Free Hanging (In-Line)
Fastening Type	Locking Ramp	Locking Ramp
Cable Termination	IDC	IDC
Wire Type	Discrete or Ribbon Cable	Discrete or Ribbon Cable
Wire Gauge	20 AWG	20 AWG
Features	Closed End, Polarizing Key	Closed End, Polarizing Key
Contact Finish	Gold	Gold
Contact Finish Thickness	30.0µin (0.76µm)	30.0µin (0.76µm)
Color	Yellow	Yellow
Base Product Number	644663	644663
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
ECCN	EAR99	EAR99
HTSUS	8536.69.8000	8536.69.8000
Product Status	Obsolete	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant
Packaging	Not specified	Bulk

Engineering Selection Recommendations

The 4-644663-0 is a direct functional equivalent to the 1-644663-0. Both parts share identical electrical and mechanical specifications across all critical parameters including connector type, position count, pitch, termination method, wire gauge, contact finish, and mechanical features.

The primary distinction between these parts is product status and regulatory compliance. The 1-644663-0 is classified as obsolete and RoHS non-compliant, while the 4-644663-0 is active and ROHS3 compliant. For applications requiring regulatory compliance with current environmental standards, the 4-644663-0 is the appropriate selection. Both parts are manufactured by TE Connectivity AMP Connectors and maintain identical form, fit, and function within the MTA-156 series.

Frequently Asked Questions (FAQ)

Q: Are the 1-644663-0 and 4-644663-0 mechanically interchangeable?

A: Yes. Both parts are 10-position receptacle connectors with identical 0.156" (3.96mm) pitch, single-row configuration, IDC termination, and mechanical fastening specifications. They share the same polarizing key design and locking ramp fastening mechanism.

Q: What is the difference between these two part numbers?

A: The primary differences are product status and compliance certification. The 1-644663-0 is obsolete and RoHS non-compliant. The 4-644663-0 is active and ROHS3 compliant. All electrical and mechanical parameters are identical.

Q: Can the 4-644663-0 replace the 1-644663-0 in existing designs?

A: Yes. The 4-644663-0 provides full functional equivalence with identical contact specifications, wire gauge capacity, and mechanical interface. The part is suitable for direct substitution in applications currently using the 1-644663-0.

Q: What wire gauge does this connector support?

A: Both connectors support 20 AWG wire gauge for discrete or ribbon cable termination using IDC (Insulation Displacement Contact) technology.

Q: What is the contact finish specification?

A: Both parts feature gold-plated contacts with a finish thickness of 30.0µin (0.76µm), providing corrosion resistance and reliable electrical contact.

Q: Does packaging format affect compatibility?

A: No. Packaging format (bulk or other configurations) does not affect the electrical or mechanical performance of the connector. The connector itself remains functionally identical regardless of packaging presentation.

Q: What is the moisture sensitivity level?

A: Both parts are classified as MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.

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