TE Connectivity 1-644884-4 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 1-644884-4 is a rectangular connector header designed for through-hole mounting applications. This connector features 14 vertical positions with 0.100" (2.54mm) pitch spacing and is classified as an unshrouded, board-to-cable/wire style header with solder termination. The part operates within a temperature range of -55°C to 105°C and carries a voltage rating of 250VAC.

The 1-644884-4 is currently listed as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure component availability, and support ongoing production and repair requirements for legacy systems utilizing this connector specification.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Number of Positions	14
Pitch - Mating	0.100" (2.54mm)
Number of Rows	1
Mounting Type	Through Hole
Termination	Solder
Shrouding	Unshrouded
Contact Shape	Square
Insulation Material	Thermoplastic
Operating Temperature	-55°C ~ 105°C
Material Flammability Rating	UL94 V-0
Voltage Rating	250VAC
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the TE Connectivity 1-644884-4 are identified based on strict electrical and mechanical parameter alignment. The primary substitution criteria include:

Core Matching Parameters:

Connector type: Header
Contact type: Male Pin
Number of positions: 14
Pitch spacing: 0.100" (2.54mm)
Number of rows: 1
Mounting type: Through Hole
Termination method: Solder
Contact shape: Square
Insulation material: Thermoplastic
Material flammability rating: UL94 V-0
Moisture sensitivity level: 1 (Unlimited)

Variable Parameters Affecting Substitution:

Contact length (mating and post dimensions)
Overall contact length
Contact finish material (Gold vs. Tin)
Contact finish thickness
Operating temperature range
Current rating capacity
Product status (Active vs. Obsolete)
Packaging format (Bulk vs. Bag)

All substitute parts listed are manufactured by Amphenol ICC (FCI) under the BERGSTIK® series designation. These parts maintain compatibility with the original 1-644884-4 footprint and electrical interface while offering active product status and enhanced availability.

Parameter Comparison

Parameter	1-644884-4	77311-122-14LF	77311-124-14LF	77311-127-14LF	77311-170-14LF	77311-422-14LF	77311-424-14LF	77311-427-14LF	77311-822-14LF	77311-824-14LF	77311-827-14LF
Manufacturer	TE Connectivity	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Amphenol ICC (FCI)
Series	MTA-100	BERGSTIK®	BERGSTIK®	BERGSTIK®	BERGSTIK®	BERGSTIK®	BERGSTIK®	BERGSTIK®	BERGSTIK®	BERGSTIK®	BERGSTIK®
Connector Type	Header	Header	Header	Header	Header	Header	Header	Header	Header	Header	Header
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Number of Positions	14	14	14	14	14	14	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)	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 Rows	1	1	1	1	1	1	1	1	1	1	1
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Shrouding	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded
Contact Shape	Square	Square	Square	Square	Square	Square	Square	Square	Square	Square	Square
Contact Material	Copper Alloy	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Insulation Material	Thermoplastic	Thermoplastic	Thermoplastic	Thermoplastic	Thermoplastic	Thermoplastic	Thermoplastic	Thermoplastic	Thermoplastic	Thermoplastic	Thermoplastic
Operating Temperature	-55°C ~ 105°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Insulation Color	Natural	Black	Black	Black	Black	Black	Black	Black	Black	Black	Black
Current Rating	Varies by Wire Gauge	3A per Contact	3A per Contact	3A per Contact	3A per Contact	3A per Contact	3A per Contact	3A per Contact	3A per Contact	3A per Contact	3A per Contact
RoHS Status	ROHS3 Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

All listed substitute parts maintain full electrical and mechanical compatibility with the TE Connectivity 1-644884-4 across core connector specifications. The substitute parts are manufactured by Amphenol ICC (FCI) and carry Active product status, ensuring long-term availability and supply chain continuity.

Compliance and Certification Alignment:

All substitute parts comply with RoHS regulations and maintain UL94 V-0 material flammability ratings. Moisture sensitivity level remains at MSL 1 (Unlimited) across all alternatives, matching the original part specification. ECCN classification (EAR99) and HTSUS code (8536.69.4040) are consistent across all parts.

Operating Temperature Consideration:

Substitute parts operate across an extended temperature range of -65°C to 125°C, compared to the original part's -55°C to 105°C specification. This extended range provides additional thermal margin for applications requiring broader environmental tolerance.

Contact Finish and Material Variations:

Substitute parts are available with two primary contact finish options:

Gold or Gold GXT™ finish (77311-122-14LF, 77311-124-14LF, 77311-127-14LF, 77311-170-14LF, 77311-822-14LF, 77311-824-14LF, 77311-827-14LF)
Tin finish (77311-422-14LF, 77311-424-14LF, 77311-427-14LF)

All substitute parts utilize Phosphor Bronze contact material, providing improved durability compared to the original Copper Alloy specification.

Contact Length Variations:

Substitute parts are available in three distinct contact length configurations to accommodate different PCB stack-up requirements:

Extended mating length: 0.305" (7.75mm) - 77311-122-14LF, 77311-422-14LF, 77311-822-14LF
Standard mating length: 0.266" (6.75mm) - 77311-124-14LF, 77311-424-14LF, 77311-824-14LF
Reduced mating length: 0.260" (6.60mm) - 77311-127-14LF, 77311-170-14LF, 77311-427-14LF, 77311-827-14LF

Packaging Format:

Substitute parts are available in Bulk or Bag packaging formats. Selection should align with procurement and inventory management requirements.

Frequently Asked Questions (FAQ)

Q: Can the Amphenol ICC BERGSTIK® parts directly replace the TE Connectivity MTA-100 1-644884-4?

A: Yes. All listed Amphenol ICC BERGSTIK® parts maintain identical connector type, contact configuration, pitch spacing, mounting method, and termination approach. The 14-position, 0.100" (2.54mm) pitch through-hole solder header interface is fully compatible with the original part's footprint and electrical requirements.

Q: What is the primary difference between the various 77311 part numbers?

A: The 77311 series parts differ in three primary aspects: contact finish material (Gold vs. Tin), contact mating length, and packaging format (Bulk vs. Bag). The contact finish affects corrosion resistance and mating force characteristics. Contact length variations accommodate different PCB stack-up depths. Selection should be based on specific application requirements and PCB design constraints.

Q: Are the substitute parts rated for the same voltage and current as the original 1-644884-4?

A: The substitute parts carry a specified current rating of 3A per contact. The original part specifies current rating as "Varies by Wire Gauge." The substitute parts do not specify a voltage rating in the provided data, whereas the original part carries a 250VAC rating. Applications requiring the 250VAC specification should be evaluated against actual substitute part datasheets.

Q: What is the significance of the extended operating temperature range in the substitute parts?

A: The substitute parts operate from -65°C to 125°C, compared to the original part's -55°C to 105°C range. This extended specification provides additional thermal margin and allows deployment in more demanding environmental conditions. For applications operating within the original temperature range, the extended specification presents no compatibility concerns.

Q: How do the contact material differences affect substitution?

A: The original part uses Copper Alloy contacts, while all substitute parts use Phosphor Bronze. Phosphor Bronze provides superior durability, improved spring characteristics, and enhanced resistance to wear during mating cycles. This material upgrade is functionally beneficial and does not create compatibility issues.

Q: What packaging options are available for the substitute parts?

A: Substitute parts are available in two packaging formats: Bulk and Bag. Bulk packaging (77311-122-14LF, 77311-124-14LF, 77311-822-14LF, 77311-824-14LF) is suitable for high-volume manufacturing environments. Bag packaging (77311-170-14LF, 77311-422-14LF, 77311-424-14LF, 77311-427-14LF, 77311-827-14LF) accommodates smaller order quantities and component kit assembly. Selection should align with procurement volume and inventory management practices.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitute parts carry RoHS Compliant certification. The original part carries ROHS3 Compliant status. Both certifications satisfy RoHS regulatory requirements and are compatible for applications subject to RoHS directives.

Q: What is the difference between Gold and Tin contact finishes in the substitute parts?

A: Gold-finished parts (77311-122-14LF, 77311-124-14LF, 77311-127-14LF, 77311-170-14LF, 77311-822-14LF, 77311-824-14LF, 77311-827-14LF) provide superior corrosion resistance and lower contact resistance. Tin-finished parts (77311-422-14LF, 77311-424-14LF, 77311-427-14LF) offer cost efficiency while maintaining adequate performance for general-purpose applications. Selection depends on environmental exposure and electrical performance requirements.

Q: Do the substitute parts maintain the same footprint as the original 1-644884-4?

A: Yes. All substitute parts maintain identical pitch spacing (0.100" / 2.54mm), position count (14), row configuration (1 row), and through-hole mounting interface. PCB footprints designed for the original part are directly compatible with all substitute parts. Contact length variations affect insertion depth but do not alter the PCB footprint pattern.

Q: What is the current availability status of the substitute parts?

A: All listed substitute parts carry Active product status with documented inventory levels ranging from 700 to 1,154 pieces. The original 1-644884-4 is classified as Obsolete. Substitution to Active parts ensures long-term supply chain continuity and eliminates obsolescence risk.

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