TE Connectivity 1-644694-0 Rectangular Connector Header Equivalent & Substitute Parts

Part Overview

The TE Connectivity 1-644694-0 is a through-hole, right-angle rectangular connector header from the MTA-100 series, designed for board-to-cable/wire applications with 10 positions at 0.100" (2.54mm) pitch. This component features male pins with kinked pin solder termination and operates across a temperature range of -55°C to 105°C with a 250VAC voltage rating.

The main part number 1-644694-0 carries an obsolete product status. Equivalent and substitute parts are available from both TE Connectivity and 3M manufacturers, offering active or last-time-buy alternatives that maintain functional compatibility within specified electrical and mechanical parameters.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Pitch - Mating	0.100" (2.54mm)
Number of Positions	10
Number of Rows	1
Mounting Type	Through Hole, Right Angle
Termination	Solder
Operating Temperature	-55°C ~ 105°C
Voltage Rating	250VAC
Material Flammability Rating	UL94 V-0
Shrouding	Unshrouded

Substitute Part Grouping Explanation

Substitution eligibility for the 1-644694-0 is determined by the following critical parameters:

Primary Compatibility Criteria:

Pitch - Mating: 0.100" (2.54mm)
Number of Positions: 10
Number of Rows: 1
Mounting Type: Through Hole, Right Angle
Contact Type: Male Pin
Connector Type: Header
Material Flammability Rating: UL94 V-0

Secondary Compatibility Considerations:

Operating Temperature range overlap
Termination method (Solder)
Shrouding configuration (Unshrouded)

All substitute parts listed maintain these core parameters. Variations in contact finish, insulation material, contact length specifications, and product status are documented to enable informed selection based on application requirements and supply chain considerations.

Parameter Comparison

Parameter	1-644694-0	4-644694-0	929500-01-10	929500-01-10-RK	929550-01-10-EU	929550-01-10-I
Manufacturer	TE Connectivity	TE Connectivity	3M	3M	3M	3M
Series	MTA-100	MTA-100	929	929	929	929
Product Status	Obsolete	Active	Last Time Buy	Active	Active	Active
Connector Type	Header	Header	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Number of Positions	10	10	10	10	10	10
Number of Rows	1	1	1	1	1	1
Mounting Type	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle
Termination	Kinked Pin, Solder	Kinked Pin, Solder	Solder	Solder	Solder	Solder
Contact Length - Mating	0.260" (6.60mm)	0.260" (6.60mm)	0.295" (7.49mm)	0.295" (7.49mm)	0.295" (7.49mm)	0.295" (7.49mm)
Contact Length - Post	0.110" (2.79mm)	0.110" (2.79mm)	0.130" (3.30mm)	0.130" (3.30mm)	0.130" (3.30mm)	0.130" (3.30mm)
Insulation Height	0.100" (2.54mm)	0.100" (2.54mm)	0.110" (2.79mm)	0.110" (2.79mm)	0.110" (2.79mm)	0.110" (2.79mm)
Contact Shape	Square	Square	Square	Square	Square	Square
Contact Finish - Mating	Tin-Lead	Tin	Tin-Lead	Tin	Gold	Gold
Contact Material	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	-40°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	UL94 V-0
Shrouding	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded
RoHS Status	RoHS non-compliant	RoHS Compliant	Not specified	RoHS Compliant	Not specified	Not specified
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	Not Applicable	Not Applicable	Not Applicable	Not Applicable

Engineering Selection Recommendations

Direct TE Connectivity Equivalent:

The 4-644694-0 is the primary substitute for the obsolete 1-644694-0. Both parts share identical mechanical and electrical specifications within the MTA-100 series. The 4-644694-0 maintains active product status and RoHS compliance, making it the preferred choice for new designs and ongoing production. The contact finish differs only in lead content (Tin versus Tin-Lead), which does not affect functional compatibility.

3M 929 Series Alternatives:

The 3M 929 series headers (929500-01-10, 929500-01-10-RK, 929550-01-10-EU, 929550-01-10-I) provide functional substitution with the following considerations:

All 3M parts feature breakaway connector type and push-pull fastening, distinguishing them from the TE Connectivity board-to-cable/wire style
Contact length specifications differ: 3M parts measure 0.295" (7.49mm) mating length versus 0.260" (6.60mm) for TE Connectivity parts
Operating temperature minimum is -40°C for 3M parts versus -55°C for TE Connectivity parts
Current rating is specified at 2.5A for 3M parts; TE Connectivity rating varies by wire gauge
Voltage rating is not specified for 3M parts; TE Connectivity specifies 250VAC

Product Status Considerations:

929500-01-10 carries last-time-buy status; procurement should prioritize active alternatives
929500-01-10-RK, 929550-01-10-EU, and 929550-01-10-I maintain active product status
4-644694-0 is the only active TE Connectivity equivalent

Compliance and Certification:

4-644694-0 is RoHS compliant; 1-644694-0 is RoHS non-compliant
All parts carry UL94 V-0 flammability rating
ECCN classification is EAR99 for all parts
REACH status is vendor-undefined for TE Connectivity parts; REACH unaffected for 3M parts

Frequently Asked Questions (FAQ)

Q: Can the 4-644694-0 directly replace the 1-644694-0 in existing designs?

A: Yes. The 4-644694-0 maintains identical pitch (0.100"), position count (10), row configuration (1), mounting type (through-hole right-angle), and operating temperature range (-55°C to 105°C). The primary difference is contact finish composition (Tin versus Tin-Lead) and RoHS compliance status, neither of which affects functional compatibility.

Q: What are the key differences between TE Connectivity MTA-100 and 3M 929 series headers?

A: The primary differences are connector style (board-to-cable/wire versus board-to-board), fastening mechanism (none specified versus push-pull), contact length (0.260" versus 0.295" mating length), and operating temperature minimum (-55°C versus -40°C). These differences may affect mechanical fit and thermal performance in specific applications.

Q: Are the 3M 929 series parts suitable substitutes for the 1-644694-0?

A: The 3M 929 series parts maintain the critical electrical parameters: 0.100" pitch, 10 positions, 1 row, through-hole right-angle mounting, and UL94 V-0 flammability rating. However, the longer contact length and different connector style require verification of mechanical compatibility with existing mating connectors and PCB layouts before implementation.

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

A: Contact finish affects corrosion resistance and solderability. Tin-Lead and Tin finishes are standard for general-purpose applications. Gold finish provides enhanced corrosion resistance and is suitable for applications requiring extended shelf life or exposure to corrosive environments. Selection depends on application environment and soldering process compatibility.

Q: Why does the 1-644694-0 have an obsolete status?

A: Obsolete status indicates the manufacturer has discontinued production. The 4-644694-0 serves as the active replacement within the same MTA-100 series, maintaining functional equivalence while offering improved compliance status.

Q: Are there packaging differences between these parts?

A: The 1-644694-0 packaging is not specified in available data. The 4-644694-0 and all 3M alternatives are supplied in bulk packaging. Confirm packaging requirements with supplier documentation for specific procurement needs.

Q: What is the current rating for the 1-644694-0?

A: The current rating varies by wire gauge. The 3M 929 series specifies 2.5A current rating. Consult detailed product datasheets for wire gauge-specific current ratings applicable to your application.

Q: Can these headers be used in high-temperature applications?

A: The 1-644694-0 and 4-644694-0 operate to 105°C maximum. The 3M 929 series also operates to 105°C maximum. For applications requiring operation above 105°C, alternative connector families must be evaluated.

Q: Is RoHS compliance required for my application?

A: If RoHS compliance is mandatory, the 4-644694-0 and 929500-01-10-RK are compliant options. The 1-644694-0 is RoHS non-compliant. Verify regulatory requirements for your specific application and market.

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