TE Connectivity 641238-4 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 641238-4 is a 4-position rectangular receptacle connector from the MTA-100 series, designed for IDC (Insulation Displacement Contact) termination with 24 AWG wire. This connector features gold-plated female socket contacts, a closed-end design, and supports both discrete and ribbon cable configurations.

The 641238-4 carries an obsolete product status. Identification of equivalent and substitute parts is necessary to ensure continued availability for maintenance, repair, and production applications where this connector is specified in existing designs or systems.

Key Parameters

Parameter	Value
Connector Type	Rectangular Receptacle
Number of Positions	4
Pitch	0.100" (2.54mm)
Contact Type	Female Socket
Cable Termination Method	IDC (Insulation Displacement Contact)
Wire Gauge	24 AWG
Contact Finish	Gold
Contact Finish Thickness	30.0µin (0.76µm)
Mounting Type	Free Hanging (In-Line), Right Angle
Fastening Type	Locking Ramp
Series	MTA-100

Substitute Part Grouping Explanation

Substitution eligibility for the 641238-4 is determined by strict equivalence across the following critical parameters:

Connector Type & Series: Must be rectangular receptacle connector from MTA-100 series
Position Count & Pitch: Must maintain 4 positions at 0.100" (2.54mm) pitch
Contact Configuration: Must be female socket with gold finish at 30.0µin thickness
Termination Method: Must support IDC termination for 24 AWG wire
Mechanical Interface: Must match free hanging (in-line) and right angle mounting with locking ramp fastening
Electrical & Environmental Compliance: Must meet RoHS and REACH requirements applicable to the application

The substitute part 3-641238-4 satisfies all substitution criteria. This part maintains identical electrical and mechanical specifications while differing in product status (active versus obsolete) and packaging configuration (bulk versus standard).

Parameter Comparison

Parameter	641238-4 (Main Part)	3-641238-4 (Substitute)
Manufacturer	TE Connectivity AMP Connectors	TE Connectivity AMP Connectors
Series	MTA-100	MTA-100
Connector Type	Rectangular Receptacle	Rectangular Receptacle
Number of Positions	4	4
Pitch	0.100" (2.54mm)	0.100" (2.54mm)
Contact Type	Female Socket	Female Socket
Wire Gauge	24 AWG	24 AWG
Cable Termination	IDC	IDC
Contact Finish	Gold	Gold
Contact Finish Thickness	30.0µin (0.76µm)	30.0µin (0.76µm)
Mounting Type	Free Hanging (In-Line), Right Angle	Free Hanging (In-Line), Right Angle
Fastening Type	Locking Ramp	Locking Ramp
Color	White	White
Product Status	Obsolete	Active
RoHS Status	ROHS3 Compliant	RoHS Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)
ECCN	EAR99	EAR99

Engineering Selection Recommendations

The 3-641238-4 is a direct functional equivalent to the 641238-4 and is suitable for substitution in all applications where the original part is specified.

Product Status Consideration: The 641238-4 is classified as obsolete, while the 3-641238-4 maintains active product status. For new designs, maintenance applications, and production continuity, the 3-641238-4 is the appropriate selection due to its active availability and identical electrical and mechanical specifications.

Compliance Status: Both parts meet RoHS requirements. The 3-641238-4 carries REACH Unaffected status, while the 641238-4 shows Vendor Undefined REACH status. Both parts are classified under ECCN EAR99 for export control purposes.

Inventory Availability: The 3-641238-4 is currently in stock with 651 pieces available. The 641238-4 shows 1015 pieces in inventory but carries obsolete status, indicating no future replenishment.

Frequently Asked Questions (FAQ)

Q: Can the 3-641238-4 be used as a direct replacement for the 641238-4 in existing assemblies?

A: Yes. The 3-641238-4 is electrically and mechanically equivalent to the 641238-4. Both connectors share identical specifications for position count, pitch, contact type, termination method, wire gauge, and mounting configuration. No design modifications are required for substitution.

Q: What is the difference between the 641238-4 and 3-641238-4?

A: The primary differences are product status and packaging. The 641238-4 is obsolete, while the 3-641238-4 is active. The 3-641238-4 is supplied in bulk packaging. All electrical and mechanical parameters are identical.

Q: Are there any compatibility concerns when substituting the 3-641238-4 for the 641238-4?

A: No compatibility concerns exist. Both parts are from the same MTA-100 series, feature identical contact geometry, pitch, and termination specifications. The connectors are mechanically and electrically interchangeable.

Q: Does the packaging difference affect connector performance?

A: No. Packaging configuration does not affect connector electrical performance or mechanical function. Bulk packaging is a supply and handling consideration only.

Q: Which part should be specified for new designs?

A: The 3-641238-4 should be specified for new designs due to its active product status and confirmed long-term availability. The 641238-4 is obsolete and should not be specified for new applications.

Q: Are both parts RoHS compliant?

A: Yes. Both the 641238-4 and 3-641238-4 meet RoHS compliance requirements. The 641238-4 is ROHS3 compliant, and the 3-641238-4 is RoHS compliant.

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