TE Connectivity 1-644694-4 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 1-644694-4 is a rectangular connector header, right-angle configuration, 14-position, 2.54mm pitch, designed for through-hole mounting with kinked pin solder termination. This connector is classified as obsolete, indicating discontinuation from the manufacturer. Identification of equivalent and substitute parts is necessary to maintain design compatibility, ensure supply chain continuity, and support legacy system maintenance and new production requirements.

Key Parameters

Parameter	Value
Manufacturer Part Number	1-644694-4
Manufacturer	TE Connectivity AMP Connectors
Series	MTA-100
Connector Type	Header
Number of Positions	14
Pitch - Mating	0.100" (2.54mm)
Mounting Type	Through Hole, Right Angle
Contact Type	Male Pin
Termination	Kinked Pin, Solder
Operating Temperature Range	-55°C ~ 105°C
Voltage Rating	250VAC
Material Flammability Rating	UL94 V-0
Product Status	Obsolete
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution eligibility for the 1-644694-4 is determined by the following critical parameters:

Primary Matching Criteria:

Number of Positions: 14
Pitch - Mating: 0.100" (2.54mm)
Mounting Type: Through Hole, Right Angle
Contact Type: Male Pin
Material Flammability Rating: UL94 V-0

Secondary Compatibility Factors:

Operating Temperature Range: Minimum -55°C to -40°C; Maximum 105°C
Voltage Rating: 250VAC or unspecified
Connector Type: Header (including Breakaway variants)
Style: Board to Cable/Wire or Board to Board

The substitute parts listed below satisfy the primary matching criteria and maintain functional compatibility within the specified electrical and mechanical parameters. Variations in contact finish, insulation material, and product status are noted but do not preclude substitution where design requirements permit.

Parameter Comparison

Parameter	1-644694-4 (Main)	4-644694-4	929500-01-14	929500-01-14-RK	929550-01-14-EU
Manufacturer	TE Connectivity AMP	TE Connectivity AMP	3M	3M	3M
Number of Positions	14	14	14	14	14
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Mounting Type	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Connector Type	Header	Header	Header, Breakaway	Header, Breakaway	Header, Breakaway
Operating Temperature Range	-55°C ~ 105°C	-55°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Contact Finish - Mating	Tin-Lead	Tin	Tin-Lead	Tin	Gold
Product Status	Obsolete	Active	Last Time Buy	Active	Active
RoHS Status	RoHS non-compliant	RoHS Compliant	Not specified	RoHS Compliant	Not specified

Engineering Selection Recommendations

Primary Substitute: TE Connectivity 4-644694-4

The 4-644694-4 is the direct equivalent within the TE Connectivity product line. This part maintains identical electrical and mechanical specifications to the 1-644694-4, including 14-position configuration, 2.54mm pitch, through-hole right-angle mounting, and UL94 V-0 flammability rating. The 4-644694-4 carries Active product status and RoHS Compliant certification, providing superior supply chain availability and regulatory compliance for new designs. Contact finish differs from Tin-Lead to Tin, which does not affect functional compatibility. This part is the recommended first choice for direct replacement.

Secondary Substitutes: 3M 929 Series Headers

The 3M 929500-01-14, 929500-01-14-RK, and 929550-01-14-EU connectors satisfy all primary matching criteria and maintain functional compatibility. These parts feature identical 14-position, 2.54mm pitch, through-hole right-angle configuration with UL94 V-0 flammability rating. Operating temperature range is -40°C to 105°C, which covers the upper portion of the 1-644694-4 specification. The 929 series connectors incorporate breakaway functionality and push-pull fastening, providing additional design flexibility.

Compliance Considerations:

The 4-644694-4 is RoHS Compliant and recommended for applications requiring regulatory adherence. The 929500-01-14-RK is also RoHS Compliant. The 929500-01-14 carries Last Time Buy status, indicating limited future availability. The 929550-01-14-EU features gold contact finish, suitable for applications requiring enhanced corrosion resistance or specific contact performance characteristics.

Frequently Asked Questions (FAQ)

Q: Can the 4-644694-4 directly replace the 1-644694-4 in existing designs?

A: Yes. The 4-644694-4 maintains identical electrical and mechanical specifications, including 14-position configuration, 2.54mm pitch, through-hole right-angle mounting, and operating temperature range of -55°C to 105°C. The contact finish change from Tin-Lead to Tin does not affect functional compatibility. The primary advantage is Active product status and RoHS Compliant certification.

Q: What is the difference between the TE Connectivity MTA-100 series and the 3M 929 series substitutes?

A: Both series meet the core requirements of 14-position, 2.54mm pitch, through-hole right-angle headers with UL94 V-0 flammability rating. The 3M 929 series incorporates breakaway functionality and push-pull fastening, which the MTA-100 series does not provide. The 3M series operates from -40°C to 105°C, compared to the MTA-100 range of -55°C to 105°C. Selection depends on whether breakaway capability and fastening type are required for the application.

Q: Are there RoHS compliance differences between substitute options?

A: Yes. The 4-644694-4 is RoHS Compliant. The 929500-01-14-RK is RoHS Compliant. The 929500-01-14 and 929550-01-14-EU do not specify RoHS status. For applications requiring RoHS compliance, the 4-644694-4 or 929500-01-14-RK are the appropriate selections.

Q: What is the significance of the contact finish variations (Tin-Lead, Tin, Gold)?

A: Contact finish affects corrosion resistance and solderability characteristics. Tin-Lead and Tin finishes are standard for general-purpose applications. Gold finish, as provided in the 929550-01-14-EU, offers enhanced corrosion resistance and is suitable for applications with extended storage periods or harsh environmental conditions. All finishes maintain electrical compatibility within the specified voltage and current parameters.

Q: Can the 3M 929 series be used in applications requiring the full -55°C to 105°C temperature range?

A: The 3M 929 series operates from -40°C to 105°C. Applications requiring operation below -40°C must use the TE Connectivity 1-644694-4 or 4-644694-4, which are rated to -55°C. Verify application temperature requirements before selecting a substitute.

Q: What is the inventory status for each substitute part?

A: The 4-644694-4 has 5533 pieces in stock. The 929500-01-14 has 1094 pieces (Last Time Buy status). The 929500-01-14-RK has 987 pieces. The 929550-01-14-EU has 1180 pieces. The original 1-644694-4 has 1068 pieces in stock but is obsolete. Inventory levels should be verified at the time of procurement.

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