TE Connectivity AMP 4-644694-2 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP 4-644694-2 is a rectangular connector header, right-angle configuration, with 12 positions at 2.54mm pitch. This through-hole component is designed for board-to-cable/wire applications in general-purpose circuits. The part operates across a temperature range of -55°C to 105°C with a 250VAC voltage rating and UL94 V-0 flammability compliance.

The 4-644694-2 carries an obsolete product status, making equivalent substitutes necessary for new designs and ongoing production requirements. Active alternative components from 3M's 929 series provide functional equivalence while offering current manufacturing availability and updated material specifications.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Pitch - Mating	0.100" (2.54mm)
Number of Positions	12
Number of Rows	1
Mounting Type	Through Hole, Right Angle
Contact Shape	Square
Contact Material	Copper Alloy
Insulation Material	Thermoplastic
Operating Temperature Range	-55°C ~ 105°C
Voltage Rating	250VAC
Material Flammability Rating	UL94 V-0
RoHS Status	RoHS Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the 4-644694-2 is determined by the following critical parameters:

Core Compatibility Parameters:

Pitch - Mating: 0.100" (2.54mm)
Number of Positions: 12
Number of Rows: 1
Mounting Type: Through Hole, Right Angle
Contact Type: Male Pin
Contact Shape: Square
Contact Material: Copper Alloy
Material Flammability Rating: UL94 V-0

All substitute parts listed maintain these core parameters, ensuring mechanical and electrical compatibility with mating connectors and PCB layouts designed for the original component.

Secondary Considerations:

Operating temperature range compatibility
Contact finish specifications
Insulation material composition
Regulatory compliance status (RoHS, REACH)

The 3M 929 series components (929500-01-12, 929500-01-12-RK, 929550-01-12-I, 929550-01-12-EU) satisfy the core compatibility requirements while offering variations in contact finish, insulation material, and compliance certifications.

Parameter Comparison

Parameter	4-644694-2 (TE Connectivity)	929500-01-12 (3M)	929500-01-12-RK (3M)	929550-01-12-I (3M)	929550-01-12-EU (3M)
Manufacturer	TE Connectivity AMP	3M	3M	3M	3M
Series	MTA-100	929	929	929	929
Product Status	Obsolete	Active	Active	Active	Active
Connector Type	Header	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway
Contact Type	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)
Number of Positions	12	12	12	12	12
Number of Rows	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
Termination	Kinked Pin, Solder	Solder	Solder	Solder	Solder
Contact Length - Mating	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)	0.130" (3.30mm)	0.130" (3.30mm)	0.130" (3.30mm)	0.130" (3.30mm)
Insulation Height	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
Contact Finish - Mating	Tin	Tin-Lead	Tin	Gold	Gold
Contact Material	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy
Operating Temperature	-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
RoHS Status	RoHS Compliant	RoHS non-compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant
Current Rating	Varies by Wire Gauge	2.5A	2.5A	2.5A	2.5A

Engineering Selection Recommendations

Primary Substitute: 929500-01-12-RK

The 3M 929500-01-12-RK is the recommended substitute for new designs and production applications. This part maintains RoHS compliance status matching the original 4-644694-2, carries active product status with confirmed manufacturing availability (1018 pcs in stock), and features tin contact finish with 200.0µin thickness. The PCT insulation material provides enhanced thermal and chemical resistance compared to the original thermoplastic specification. Operating temperature range of -40°C to 105°C covers the upper portion of the original specification, suitable for applications not requiring the -55°C minimum.

Alternative Substitute: 929550-01-12-EU or 929550-01-12-I

The 929550 series variants offer gold contact finish (10.0µin thickness) for applications requiring enhanced corrosion resistance and contact reliability. Both parts maintain RoHS compliance and active product status. The 929550-01-12-EU uses PCT insulation material, while 929550-01-12-I uses glass-filled PBT polyester. Gold plating provides superior performance in low-signal-level applications and environments with potential contact oxidation concerns.

Non-Recommended Substitute: 929500-01-12

The 929500-01-12 carries RoHS non-compliant status and tin-lead contact finish, making it unsuitable for applications subject to RoHS regulations or lead-free manufacturing requirements.

Temperature Consideration:

All 3M substitutes operate to -40°C minimum, compared to the original -55°C specification. Applications requiring operation below -40°C require design review and alternative component selection.

Frequently Asked Questions (FAQ)

Q: Can the 3M 929500-01-12-RK directly replace the TE Connectivity 4-644694-2 in existing designs?

A: The 929500-01-12-RK maintains mechanical and electrical compatibility through matching pitch (2.54mm), position count (12), mounting type (through-hole right-angle), and contact configuration. However, the contact length dimensions differ: mating contact length increases from 0.260" to 0.295", and post length increases from 0.110" to 0.130". PCB layout and mating connector depth must accommodate these dimensional changes. Insulation height also increases from 0.100" to 0.110".

Q: What is the difference between the 929500-01-12-RK and 929550-01-12-EU substitutes?

A: Both parts share identical mechanical dimensions and core specifications. The primary difference is contact finish: 929500-01-12-RK uses tin finish (200.0µin thickness), while 929550-01-12-EU uses gold finish (10.0µin thickness). Gold-plated contacts provide superior corrosion resistance and are preferred for low-current signal applications. Insulation material also differs: 929500-01-12-RK uses PCT, while 929550-01-12-EU uses PCT as well, but 929550-01-12-I uses glass-filled PBT polyester.

Q: Are all substitute parts RoHS compliant?

A: No. The 929500-01-12 is RoHS non-compliant due to tin-lead contact finish. The 929500-01-12-RK, 929550-01-12-I, and 929550-01-12-EU are all RoHS compliant. For applications subject to RoHS regulations, select only the compliant variants.

Q: What is the operating temperature difference between the original and substitute parts?

A: The original 4-644694-2 operates from -55°C to 105°C. All 3M substitutes operate from -40°C to 105°C. The upper temperature limit remains identical. Applications requiring operation below -40°C cannot use these substitutes without design modification.

Q: Why do the substitute parts have longer contact lengths?

A: The 3M 929 series components feature extended contact lengths (0.295" mating vs. 0.260" original) to provide deeper engagement with mating connectors and improved contact reliability. This design change reflects modern connector engineering practices for enhanced durability and reduced contact resistance.

Q: Can I use the 929500-01-12 (non-RoHS) in my application?

A: The 929500-01-12 is mechanically and electrically compatible but carries RoHS non-compliant status. Use only if your application is exempt from RoHS requirements. For new designs and production subject to RoHS regulations, select 929500-01-12-RK or the 929550 series variants.

Q: What is the difference between tin and gold contact finishes?

A: Tin finish (929500-01-12-RK) provides cost-effective corrosion protection suitable for general-purpose applications with moderate environmental exposure. Gold finish (929550 series) offers superior corrosion resistance, lower contact resistance, and enhanced reliability in low-signal applications, high-humidity environments, or applications with extended shelf life requirements. Gold plating thickness of 10.0µin in the 929550 variants ensures durable protection.

Q: Are the substitute parts available in the same packaging as the original?

A: The original 4-644694-2 packaging is not specified in the provided data. All substitute parts are supplied in bulk packaging. Confirm packaging requirements with your procurement department for tape-and-reel or alternative packaging options.

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