TE Connectivity AMP Connectors 644892-4 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 644892-4 is a rectangular connector header designed for through-hole mounting applications. This connector features a vertical orientation with 4 positions at 0.100" (2.54mm) pitch, suitable for board-to-cable/wire connections in general purpose and lighting applications. The part is classified as obsolete, necessitating identification of active equivalent alternatives to maintain design continuity and ensure supply chain availability for new production and maintenance applications.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Number of Positions	4
Pitch - Mating	0.100" (2.54mm)
Mounting Type	Through Hole
Shrouding	Shrouded - 4 Wall
Contact Length - Mating	0.280" (7.11mm)
Contact Length - Post	0.140" (3.56mm)
Insulation Height	0.410" (10.41mm)
Operating Temperature Range	-55°C ~ 105°C
Voltage Rating	250VAC
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the obsolete 644892-4 is determined by strict equivalence across the following critical parameters:

Mechanical Compatibility:

Connector type (Header)
Contact type (Male Pin)
Number of positions (4)
Pitch specification (0.100" / 2.54mm)
Mounting method (Through Hole)
Shrouding configuration (Shrouded - 4 Wall)
Contact dimensions (mating length, post length, overall length)
Insulation height

Electrical Compatibility:

Operating temperature range (-55°C ~ 105°C)
Voltage rating (250VAC)
Material flammability rating (UL94 V-0)

Regulatory Compliance:

RoHS compliance status
REACH compliance status
ECCN classification
HTSUS code

The substitute part 3-644892-4 maintains full equivalence across all mechanical and electrical parameters while offering active product status and improved supply availability.

Parameter Comparison

Parameter	644892-4 (Main Part)	3-644892-4 (Substitute)	Compatibility
Manufacturer	TE Connectivity AMP Connectors	TE Connectivity AMP Connectors	Identical
Series	CST-100	CST-100	Identical
Product Status	Obsolete	Active	Substitute is active
Connector Type	Header	Header	Identical
Contact Type	Male Pin	Male Pin	Identical
Number of Positions	4	4	Identical
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)	Identical
Number of Rows	1	1	Identical
Style	Board to Cable/Wire	Board to Cable/Wire	Identical
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall	Identical
Mounting Type	Through Hole	Through Hole	Identical
Termination	Solder	Solder	Identical
Fastening Type	Friction Lock	Friction Lock	Identical
Contact Length - Mating	0.280" (7.11mm)	0.280" (7.11mm)	Identical
Contact Length - Post	0.140" (3.56mm)	0.140" (3.56mm)	Identical
Overall Contact Length	0.520" (13.21mm)	0.520" (13.21mm)	Identical
Insulation Height	0.410" (10.41mm)	0.410" (10.41mm)	Identical
Contact Shape	Square	Square	Identical
Contact Finish - Mating	Tin-Lead	Tin	Functionally compatible
Contact Finish - Post	Tin-Lead	Tin	Functionally compatible
Contact Material	Copper Alloy	Copper Alloy	Identical
Insulation Material	Polyester	Polyester	Identical
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	Identical
Material Flammability Rating	UL94 V-0	UL94 V-0	Identical
Insulation Color	Black	Black	Identical
Voltage Rating	250VAC	250VAC	Identical
Applications	General Purpose, Lighting	General Purpose, Lighting	Identical
RoHS Status	ROHS3 Compliant	RoHS Compliant	Both compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	Identical
REACH Status	REACH Unaffected	REACH Unaffected	Identical
ECCN	EAR99	EAR99	Identical
HTSUS	8536.69.4040	8536.69.4040	Identical

Engineering Selection Recommendations

The 3-644892-4 is a direct functional equivalent to the obsolete 644892-4. Both parts share identical mechanical dimensions, electrical ratings, and performance specifications within the CST-100 series. The primary distinction is product status: the 644892-4 is obsolete, while the 3-644892-4 maintains active production status.

Contact finish composition differs between the two parts: the main part features Tin-Lead plating, while the substitute uses Tin plating. This change reflects industry-wide transition toward lead-free manufacturing practices and remains functionally compatible for the specified applications and operating conditions.

Both parts maintain equivalent compliance certifications: UL94 V-0 flammability rating, RoHS compliance, REACH unaffected status, and identical ECCN and HTSUS classifications. The substitute part is suitable for direct replacement in new designs and production applications requiring the CST-100 series 4-position 2.54mm pitch header connector.

Frequently Asked Questions (FAQ)

Q: Can the 3-644892-4 be used as a direct replacement for the 644892-4 in existing designs?

A: Yes. The 3-644892-4 maintains full mechanical and electrical compatibility with the 644892-4. All critical dimensions, contact configurations, pitch specifications, and electrical ratings are identical. The parts are interchangeable for board-to-cable/wire connections in general purpose and lighting applications.

Q: What is the difference between the Tin-Lead finish on the 644892-4 and the Tin finish on the 3-644892-4?

A: The contact finish composition differs between the two parts. The 644892-4 uses Tin-Lead plating, while the 3-644892-4 uses Tin plating. This reflects the industry transition to lead-free manufacturing. Both finishes provide equivalent electrical performance and corrosion resistance for the specified operating conditions and voltage ratings.

Q: Are there packaging differences between these parts?

A: The 644892-4 packaging information is not specified in the available data. The 3-644892-4 is supplied in Bulk packaging. Confirm packaging requirements for your specific procurement needs.

Q: Do both parts meet the same regulatory and compliance standards?

A: Both parts meet equivalent compliance standards. The 644892-4 is ROHS3 Compliant, while the 3-644892-4 is RoHS Compliant. Both are REACH Unaffected, carry EAR99 ECCN classification, and share the same HTSUS code (8536.69.4040). Both maintain UL94 V-0 flammability rating and identical moisture sensitivity levels.

Q: What is the operating temperature range for these connectors?

A: Both the 644892-4 and 3-644892-4 operate across the temperature range of -55°C to 105°C, suitable for general purpose and lighting applications across diverse environmental conditions.

Q: What voltage rating applies to these connectors?

A: Both parts are rated for 250VAC operation, providing adequate electrical capacity for the specified applications.

Q: Are these connectors suitable for solder termination?

A: Yes. Both parts use solder termination and are designed for through-hole mounting on printed circuit boards. The square contact shape and specified contact dimensions ensure reliable solder joint formation.

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