TE Connectivity 1-644040-1 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 1-644040-1 is an 11-position rectangular receptacle connector from the MTA-100 series, designed for IDC (Insulation Displacement Contact) termination with 26 AWG discrete or ribbon cable. This connector features gold-plated female socket contacts, a closed-end design, and free-hanging or right-angle mounting configuration with locking ramp fastening.

The 1-644040-1 is classified as obsolete. Locating equivalent substitute parts is necessary to support ongoing maintenance, repair, and production requirements for systems utilizing this connector configuration.

Key Parameters

Parameter	Value
Connector Type	Rectangular Receptacle
Number of Positions	11
Pitch	0.100" (2.54mm)
Contact Type	Female Socket
Cable Termination Method	IDC
Wire Gauge	26 AWG
Contact Finish	Gold
Mounting Type	Free Hanging (In-Line), Right Angle
Fastening Type	Locking Ramp
Series	MTA-100

Substitute Part Grouping Explanation

Substitution of the 1-644040-1 is determined by strict equivalence across the following critical parameters:

Connector Type & Series: Rectangular receptacle connector within the MTA-100 series
Position Count: 11-position configuration
Contact Configuration: Female socket contacts with gold plating
Pitch Specification: 0.100" (2.54mm) contact spacing
Termination Method: IDC cable termination for 26 AWG wire
Mechanical Interface: Free-hanging or right-angle mounting with locking ramp fastening
Electrical & Environmental Ratings: Moisture sensitivity level 1 (unlimited), matching contact finish thickness

The substitute part 4-644040-1 maintains identical electrical and mechanical specifications to the 1-644040-1, with the primary distinction being product status classification.

Parameter Comparison

Parameter	1-644040-1 (Main Part)	4-644040-1 (Substitute)
Manufacturer	TE Connectivity AMP Connectors	TE Connectivity AMP Connectors
Series	MTA-100	MTA-100
Connector Type	Rectangular Receptacle	Rectangular Receptacle
Number of Positions	11	11
Contact Type	Female Socket	Female Socket
Pitch	0.100" (2.54mm)	0.100" (2.54mm)
Number of Rows	1	1
Mounting Type	Free Hanging (In-Line), Right Angle	Free Hanging (In-Line), Right Angle
Fastening Type	Locking Ramp	Locking Ramp
Cable Termination	IDC	IDC
Wire Type	Discrete or Ribbon Cable	Discrete or Ribbon Cable
Wire Gauge	26 AWG	26 AWG
Features	Closed End	Closed End
Contact Finish	Gold	Gold
Contact Finish Thickness	15.0µin (0.38µm)	15.0µin (0.38µm)
Color	Blue	Blue
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)
Product Status	Obsolete	Active
RoHS Status	RoHS non-compliant	RoHS Compliant
ECCN	EAR99	EAR99
HTSUS Code	8536.69.8000	8536.69.8000

Engineering Selection Recommendations

The 4-644040-1 serves as the direct substitute for the obsolete 1-644040-1. Both parts are manufactured by TE Connectivity and maintain identical electrical and mechanical specifications across all critical parameters including connector type, position count, pitch, contact configuration, termination method, and wire gauge compatibility.

The 4-644040-1 is classified as an active product with current manufacturing support and availability. This part carries RoHS compliance certification, whereas the 1-644040-1 is RoHS non-compliant. Both parts share the same ECCN classification (EAR99) and HTSUS code (8536.69.8000).

Selection of the 4-644040-1 is appropriate for applications requiring an 11-position MTA-100 series rectangular receptacle connector with IDC termination for 26 AWG cable, particularly where RoHS compliance and ongoing product support are required.

Frequently Asked Questions (FAQ)

Q: Are the 1-644040-1 and 4-644040-1 mechanically interchangeable?

A: Yes. Both connectors share identical mechanical specifications including pitch (0.100"), mounting type (free-hanging or right-angle), fastening method (locking ramp), and closed-end design. They are mechanically interchangeable in applications designed for the MTA-100 series 11-position receptacle configuration.

Q: Are the 1-644040-1 and 4-644040-1 electrically equivalent?

A: Yes. Both connectors feature identical electrical specifications including 11 female socket contacts with gold plating (15.0µin thickness), IDC termination for 26 AWG discrete or ribbon cable, and moisture sensitivity level 1 (unlimited). Electrical performance is equivalent.

Q: What is the primary difference between these two parts?

A: The primary differences are product status and RoHS compliance. The 1-644040-1 is obsolete and RoHS non-compliant, while the 4-644040-1 is an active product with RoHS compliance certification. All electrical and mechanical specifications are identical.

Q: Can the 4-644040-1 be used as a direct replacement in existing designs using the 1-644040-1?

A: Yes. The 4-644040-1 is a direct substitute with identical specifications. No design modifications are required for connector interface compatibility.

Q: What wire gauges are compatible with these connectors?

A: Both connectors are specified for 26 AWG wire with IDC termination. Compatible cable types include discrete wire or ribbon cable configurations.

Q: Are there any compliance or certification differences between these parts?

A: The 4-644040-1 carries RoHS compliance certification, while the 1-644040-1 is RoHS non-compliant. Both parts share the same ECCN classification (EAR99) and HTSUS code (8536.69.8000). REACH status is vendor undefined for both parts.

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