TE Connectivity 644456-5 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 644456-5 is a rectangular connector header designed for through-hole mounting applications. This connector features a vertical orientation with 5 positions at 0.100" (2.54mm) pitch, suitable for board-to-cable and board-to-board interconnections. The part is classified as obsolete, necessitating identification of active equivalent and substitute components that maintain functional compatibility within the MTA-100 series and compatible alternatives from other manufacturers.

Key Parameters

Parameter	Value
Manufacturer Part Number	644456-5
Manufacturer	TE Connectivity AMP Connectors
Series	MTA-100
Connector Type	Header
Contact Type	Male Pin
Number of Positions	5
Pitch - Mating	0.100" (2.54mm)
Mounting Type	Through Hole
Termination	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 of the 644456-5 is determined by the following critical parameters that must align across candidate parts:

Primary Matching Criteria:

Connector Type: Header (male pin contact)
Number of Positions: 5
Pitch - Mating: 0.100" (2.54mm)
Mounting Type: Through Hole
Termination: Solder
Contact Shape: Square
Insulation Height: 0.100" (2.54mm)
Material Flammability Rating: UL94 V-0

Secondary Compatibility Factors:

Operating Temperature Range (minimum -55°C, maximum 105°C or higher)
Voltage Rating (minimum 250VAC or unspecified)
Contact Material (Copper Alloy or Phosphor Bronze)
Insulation Material (Thermoplastic)

Substitute parts are grouped into two categories: direct TE Connectivity equivalents within the MTA-100 series and functionally compatible alternatives from Amphenol ICC (FCI) BERGSTIK® series. Variations in contact length, contact finish, and fastening type are permissible when the core mating interface parameters remain constant.

Parameter Comparison

Parameter	644456-5	3-644456-5	68771-405HLF	69173-405HLF	77311-122-05LF	77311-124-05LF	77311-127-05LF	77311-422-05LF	77311-424-05LF	77311-427-05LF	77311-822-05LF
Manufacturer	TE Connectivity	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)
Series	MTA-100	MTA-100	BERGSTIK® II	BERGSTIK® II	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	5	5	5	5	5	5	5	5	5	5	5
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
Contact Shape	Square	Square	Square	Square	Square	Square	Square	Square	Square	Square	Square
Insulation Height	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)
Operating Temperature Range	-55°C ~ 105°C	-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
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
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active
RoHS Status	RoHS non-compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant

Engineering Selection Recommendations

Primary Recommendation: 3-644456-5

The 3-644456-5 is the direct equivalent of the obsolete 644456-5. Both parts belong to the TE Connectivity MTA-100 series and share identical electrical and mechanical specifications. The 3-644456-5 is currently in active production status with RoHS compliance, making it the preferred replacement for direct substitution. This part maintains the same contact finish (Tin-Lead), operating temperature range (-55°C ~ 105°C), and voltage rating (250VAC). Inventory availability is substantial at 23,266 pieces.

Secondary Recommendations: Amphenol ICC (FCI) BERGSTIK® Series

When 3-644456-5 availability is constrained, the following Amphenol ICC (FCI) parts provide functional compatibility:

77311-122-05LF, 77311-124-05LF, 77311-127-05LF (BERGSTIK® series with gold or gold GXT™ mating contact finish): These parts offer enhanced operating temperature range (-65°C ~ 125°C) and are RoHS compliant. Contact length variations exist but do not affect mating interface compatibility. Current rating is specified at 3A per contact.
77311-422-05LF, 77311-424-05LF, 77311-427-05LF (BERGSTIK® series with tin mating contact finish): These parts provide tin contact finish matching the original specification more closely than gold-plated alternatives. Operating temperature range extends to -65°C ~ 125°C with 3A per contact current rating.
77311-822-05LF (BERGSTIK® series with minimal gold plating at 15.0µin): This variant offers the lowest gold plating thickness among BERGSTIK® options while maintaining full RoHS compliance and extended temperature range.
68771-405HLF, 69173-405HLF (BERGSTIK® II series): These parts represent the newest BERGSTIK® II generation with push-pull fastening and extended temperature range (-65°C ~ 125°C). Contact length variations and phosphor bronze material differ from the original specification but maintain electrical compatibility at the mating interface.

All substitute parts maintain the critical parameters: 5-position configuration, 0.100" (2.54mm) pitch, through-hole solder termination, square contact shape, 0.100" (2.54mm) insulation height, and UL94 V-0 flammability rating.

Frequently Asked Questions (FAQ)

Q: Can I use 3-644456-5 as a direct replacement for 644456-5?

A: Yes. The 3-644456-5 is the active equivalent of the obsolete 644456-5. Both parts are TE Connectivity MTA-100 series connectors with identical electrical and mechanical specifications, including contact configuration, pitch, operating temperature range, and voltage rating. The primary difference is product status (active vs. obsolete) and RoHS compliance.

Q: What is the difference between TE Connectivity MTA-100 and Amphenol ICC BERGSTIK® series connectors?

A: Both series are 0.100" (2.54mm) pitch rectangular connectors with 5-position male pin headers suitable for through-hole solder termination. The primary differences are manufacturer, series designation, and optional features such as fastening type (push-pull in BERGSTIK® vs. none in MTA-100) and contact material (phosphor bronze in BERGSTIK® vs. copper alloy in MTA-100). All maintain the same mating interface pitch and contact configuration.

Q: Are there differences in contact length between substitute parts?

A: Yes. Contact length variations exist among substitute parts. The original 644456-5 specifies 0.295" (7.49mm) mating contact length and 0.110" (2.79mm) post length. Substitute parts vary in these dimensions. For example, 77311-124-05LF has 0.266" (6.75mm) mating contact length and 0.114" (2.90mm) post length. These variations do not affect mating interface compatibility but may impact board layout and mechanical clearance. Verify contact length requirements for your specific application.

Q: What does RoHS compliance mean for connector selection?

A: RoHS (Restriction of Hazardous Substances) compliance indicates the part does not contain lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls, or polybrominated diphenyl ethers above specified thresholds. The original 644456-5 is RoHS non-compliant (contains tin-lead finish). All recommended substitutes are RoHS compliant. If your application requires RoHS compliance, select from the active substitute parts listed.

Q: Can I use BERGSTIK® II series (68771-405HLF, 69173-405HLF) instead of BERGSTIK® series?

A: Yes, with consideration of design differences. BERGSTIK® II parts feature push-pull fastening and phosphor bronze contacts compared to BERGSTIK® series. The mating interface pitch (0.100" / 2.54mm) and 5-position configuration remain identical. However, contact length and overall connector height differ. BERGSTIK® II parts are suitable for applications requiring push-pull engagement and extended temperature operation (-65°C ~ 125°C).

Q: What is the current rating for these connectors?

A: The original 644456-5 specifies current rating as "Varies by Wire Gauge." Amphenol ICC BERGSTIK® and BERGSTIK® II series parts specify 3A per contact. TE Connectivity 3-644456-5 maintains the same "Varies by Wire Gauge" specification as the original. Current capacity depends on wire gauge and application-specific thermal considerations.

Q: Are there packaging differences among substitute parts?

A: Yes. Packaging varies: 3-644456-5 is supplied in bulk; 68771-405HLF and 69173-405HLF in bags; 77311-122-05LF, 77311-124-05LF, 77311-427-05LF, and 77311-822-05LF in bulk; and 77311-422-05LF in bags. Packaging does not affect connector functionality but may impact procurement and inventory management.

Q: What is the operating temperature range difference between the original and substitutes?

A: The original 644456-5 operates from -55°C to 105°C. All Amphenol ICC BERGSTIK® and BERGSTIK® II substitutes extend the upper limit to 125°C and lower limit to -65°C, providing a wider operating envelope. This extended range is beneficial for applications subject to extreme environmental conditions.

Q: Do contact finish differences affect compatibility?

A: Contact finish (tin-lead, tin, or gold) affects corrosion resistance and mating force characteristics but does not prevent mechanical or electrical mating. The original 644456-5 uses tin-lead finish. Substitutes offer tin or gold finishes. Gold-plated contacts (77311-122-05LF, 77311-124-05LF, 77311-127-05LF, 77311-822-05LF) provide superior corrosion resistance in harsh environments. Tin-finished parts (77311-422-05LF, 77311-424-05LF, 77311-427-05LF) more closely match the original specification.

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