TE Connectivity 2-104433-4 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 2-104433-4 is a rectangular connector header manufactured under the AMPMODU Mod II series. This through-hole connector features 66 positions arranged in 2 rows with 0.100" (2.54mm) pitch spacing, designed for board-to-board or cable applications. The part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility for new designs and production continuity.

Key Parameters

Parameter	Value
Manufacturer Part Number	2-104433-4
Manufacturer	TE Connectivity AMP Connectors
Category	Rectangular Connectors
Series	AMPMODU Mod II
Product Status	Obsolete
Connector Type	Header, Breakaway
Contact Type	Male Pin
Number of Positions	66
Number of Rows	2
Pitch - Mating	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole
Termination	Press-Fit, Solder
Current Rating	3A
Voltage Rating	30VAC
Operating Temperature Range	-65°C ~ 105°C
Material Flammability Rating	UL94 V-0
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 2-104433-4 is determined by strict adherence to the following electrical and mechanical parameters:

Critical Matching Parameters:

Number of Positions: 66
Number of Rows: 2
Pitch - Mating: 0.100" (2.54mm)
Row Spacing - Mating: 0.100" (2.54mm)
Connector Type: Header, Breakaway
Contact Type: Male Pin
Mounting Type: Through Hole
Termination: Solder
Fastening Type: Push-Pull
Current Rating: 3A per Contact
Material Flammability Rating: UL94 V-0
Insulation Color: Black
Insulation Material: Thermoplastic

Variable Parameters Allowing Substitution:

Contact Length - Mating (0.260" to 0.318")
Contact Length - Post (0.105" to 0.125")
Overall Contact Length (0.465" to 0.538")
Insulation Height (0.090" to 0.100")
Contact Finish - Mating (Gold or Tin)
Contact Finish Thickness - Mating (10.0µin to 30.0µin)
Contact Material (Copper Alloy or Phosphor Bronze)
Operating Temperature Range (minimum -65°C, maximum 105°C to 130°C)
Product Status (Active alternatives preferred)
RoHS Compliance Status
REACH Compliance Status

The substitute parts listed below maintain compatibility with the original part through matching critical parameters while offering improvements in product status, compliance certifications, and material specifications.

Parameter Comparison

Parameter	2-104433-4 (TE)	2366-6221-TG (3M)	77313-122-66LF (Amphenol)	77313-124-66LF (Amphenol)	77313-127-66LF (Amphenol)	77313-422-66LF (Amphenol)	77313-424-66LF (Amphenol)	77313-427-66LF (Amphenol)	77313-822-66LF (Amphenol)	77313-824-66LF (Amphenol)	77313-827-66LF (Amphenol)
Manufacturer	TE Connectivity	3M	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	AMPMODU Mod II	2300	BERGSTIK®	BERGSTIK®	BERGSTIK®	BERGSTIK®	BERGSTIK®	BERGSTIK®	BERGSTIK®	BERGSTIK®	BERGSTIK®
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active
Number of Positions	66	66	66	66	66	66	66	66	66	66	66
Number of Rows	2	2	2	2	2	2	2	2	2	2	2
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)
Row Spacing - 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)
Connector Type	Header, Breakaway	Header	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
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	Press-Fit, Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Contact Length - Mating	0.318" (8.08mm)	0.318" (8.08mm)	0.305" (7.75mm)	0.266" (6.75mm)	0.260" (6.60mm)	0.305" (7.75mm)	0.266" (6.75mm)	0.260" (6.60mm)	0.305" (7.75mm)	0.266" (6.75mm)	0.260" (6.60mm)
Contact Length - Post	0.125" (3.18mm)	0.120" (3.05mm)	0.120" (3.05mm)	0.114" (2.90mm)	0.105" (2.67mm)	0.120" (3.05mm)	0.114" (2.90mm)	0.105" (2.67mm)	0.120" (3.05mm)	0.114" (2.90mm)	0.105" (2.67mm)
Overall Contact Length	0.533" (13.55mm)	0.538" (13.67mm)	0.526" (13.35mm)	0.480" (12.19mm)	0.465" (11.81mm)	0.526" (13.35mm)	0.480" (12.19mm)	0.465" (11.81mm)	0.526" (13.35mm)	0.480" (12.19mm)	0.465" (11.81mm)
Insulation Height	0.090" (2.29mm)	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)
Contact Shape	Square	Square	Square	Square	Square	Square	Square	Square	Square	Square	Square
Contact Finish - Mating	Gold	Gold	Gold or Gold, GXT™	Gold or Gold, GXT™	Gold or Gold, GXT™	Tin	Tin	Tin	Gold or Gold, GXT™	Gold or Gold, GXT™	Gold or Gold, GXT™
Contact Finish Thickness - Mating	15.0µin (0.38µm)	10.0µin (0.25µm)	30.0µin (0.76µm)	30.0µin (0.76µm)	30.0µin (0.76µm)	78.7µin (2.00µm)	78.7µin (2.00µm)	78.7µin (2.00µm)	15.0µin (0.38µm)	15.0µin (0.38µm)	15.0µin (0.38µm)
Contact Finish - Post	Tin-Lead	Tin-Lead	Tin	Tin	Tin	Tin	Tin	Tin	Tin	Tin	Tin
Contact Material	Copper Alloy	Copper Alloy	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Insulation Material	Thermoplastic	Thermoplastic, Glass Filled	Thermoplastic	Thermoplastic	Thermoplastic	Thermoplastic	Thermoplastic	Thermoplastic	Thermoplastic	Thermoplastic	Thermoplastic
Operating Temperature Range	-65°C ~ 105°C	-55°C ~ 105°C	-65°C ~ 130°C	-65°C ~ 130°C	-65°C ~ 130°C	-65°C ~ 130°C	-65°C ~ 130°C	-65°C ~ 130°C	-65°C ~ 130°C	-65°C ~ 130°C	-65°C ~ 130°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	Black	Black	Black	Black	Black	Black	Black	Black	Black	Black	Black
Current Rating	3A	3A	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	RoHS non-compliant	RoHS non-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)

Engineering Selection Recommendations

Primary Recommendation: Amphenol ICC (FCI) BERGSTIK® Series

The Amphenol ICC (FCI) BERGSTIK® series parts (77313-122-66LF, 77313-124-66LF, 77313-127-66LF, 77313-422-66LF, 77313-424-66LF, 77313-427-66LF, 77313-822-66LF, 77313-824-66LF, 77313-827-66LF) are the preferred substitutes for the obsolete TE Connectivity 2-104433-4. All BERGSTIK® variants are active products with RoHS compliance, addressing the regulatory requirements that the original part does not meet. These parts maintain full electrical and mechanical compatibility through matching critical parameters including 66 positions, 2-row configuration, 0.100" (2.54mm) pitch, through-hole mounting, and 3A current rating per contact.

Selection by Contact Length and Finish Requirements:

For applications requiring maximum contact length matching the original part (0.318" mating contact length), select 77313-122-66LF or 77313-422-66LF. The 77313-122-66LF provides gold mating finish with 30.0µin thickness, while 77313-422-66LF offers tin mating finish with 78.7µin thickness.

For applications with moderate contact length requirements (0.266" mating contact length), select 77313-124-66LF or 77313-424-66LF. The 77313-124-66LF provides gold mating finish, while 77313-424-66LF provides tin mating finish.

For applications with shorter contact length requirements (0.260" mating contact length), select 77313-127-66LF or 77313-427-66LF. The 77313-127-66LF provides gold mating finish, while 77313-427-66LF provides tin mating finish.

For applications requiring gold mating finish with 15.0µin thickness (closest to original part specification), select 77313-822-66LF, 77313-824-66LF, or 77313-827-66LF based on required contact length.

Secondary Recommendation: 3M 2366-6221-TG

The 3M 2366-6221-TG from the 2300 series is an active alternative with RoHS non-compliant status matching the original part. This connector provides glass-filled thermoplastic insulation material and maintains compatibility through identical pitch, position count, and current rating specifications. The 3M part is suitable for applications where RoHS compliance is not required and where the glass-filled insulation material provides design advantages.

Compliance Considerations:

All Amphenol BERGSTIK® variants are RoHS compliant and REACH affected, making them suitable for new designs subject to environmental regulations. The 3M 2366-6221-TG maintains RoHS non-compliant status, matching the original part's regulatory profile for legacy system replacements.

Temperature Range Expansion:

Amphenol BERGSTIK® parts extend the maximum operating temperature to 130°C compared to the original part's 105°C specification, providing enhanced thermal performance for demanding applications. The 3M part maintains the 105°C maximum temperature of the original specification.

Frequently Asked Questions (FAQ)

Q: Can the Amphenol BERGSTIK® parts be used as direct replacements for the TE Connectivity 2-104433-4?

A: Yes. All Amphenol BERGSTIK® variants maintain electrical and mechanical compatibility through matching critical parameters: 66 positions, 2-row configuration, 0.100" (2.54mm) pitch spacing, through-hole mounting, push-pull fastening, and 3A current rating per contact. Physical board layout compatibility is maintained through identical pitch and row spacing specifications.

Q: What is the difference between the various BERGSTIK® part numbers (77313-122-66LF, 77313-124-66LF, 77313-127-66LF, etc.)?

A: The BERGSTIK® variants differ in three primary specifications: contact length (mating), contact finish (mating), and contact finish thickness. The 77313-122-66LF, 77313-124-66LF, and 77313-127-66LF series provide gold mating finish with 30.0µin thickness at three different contact lengths (0.305", 0.266", and 0.260" respectively). The 77313-422-66LF, 77313-424-66LF, and 77313-427-66LF series provide tin mating finish with 78.7µin thickness at the same three contact lengths. The 77313-822-66LF, 77313-824-66LF, and 77313-827-66LF series provide gold mating finish with 15.0µin thickness (matching the original part) at the three contact lengths.

Q: How do I select the correct contact length variant?

A: Contact length selection depends on the mating connector depth and board-to-board spacing in your application. Measure the depth of the mating connector socket or the required insertion depth. The 0.305" (7.75mm) mating contact length variants (77313-122-66LF, 77313-422-66LF, 77313-822-66LF) are suitable for standard depth applications. The 0.266" (6.75mm) variants (77313-124-66LF, 77313-424-66LF, 77313-824-66LF) are suitable for shallow depth applications. The 0.260" (6.60mm) variants (77313-127-66LF, 77313-427-66LF, 77313-827-66LF) are suitable for minimum depth applications.

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

A: Gold mating finish provides superior corrosion resistance and lower contact resistance, suitable for applications requiring high reliability and long shelf life. Tin mating finish provides cost efficiency and adequate performance for standard industrial applications. The original TE Connectivity part specifies gold mating finish with 15.0µin thickness. For closest specification matching, select the 77313-822-66LF, 77313-824-66LF, or 77313-827-66LF variants.

Q: Are the Amphenol BERGSTIK® parts RoHS compliant?

A: Yes. All Amphenol BERGSTIK® variants (77313 series) are RoHS compliant. The original TE Connectivity 2-104433-4 is RoHS non-compliant. If your application requires RoHS compliance for new designs or regulatory adherence, the Amphenol BERGSTIK® parts are suitable replacements. If legacy system compatibility requires RoHS non-compliant parts, the 3M 2366-6221-TG maintains the original part's non-compliant status.

Q: What is the operating temperature range for the substitute parts?

A: Amphenol BERGSTIK® parts operate from -65°C to 130°C, extending the maximum temperature 25°C above the original part's 105°C specification. The 3M 2366-6221-TG operates from -55°C to 105°C, matching the original part's maximum temperature but with a higher minimum temperature limit of -55°C compared to the original -65°C.

Q: Can I mix different BERGSTIK® variants in the same assembly?

A: Yes. All BERGSTIK® variants maintain identical electrical and mechanical compatibility through matching pitch, position count, row spacing, and current rating specifications. Different contact length or finish variants can be used in different locations within the same assembly based on specific application requirements at each location.

Q: What is the difference between the 3M 2366-6221-TG and the Amphenol BERGSTIK® parts?

A: The 3M 2366-6221-TG is an active product from the 2300 series with glass-filled thermoplastic insulation material. It maintains RoHS non-compliant status matching the original part. The Amphenol BERGSTIK® parts are active products with standard thermoplastic insulation and RoHS compliance. Both maintain electrical and mechanical compatibility with the original part through identical pitch, position count, and current rating specifications. The 3M part is suitable for applications where RoHS compliance is not required and where glass-filled insulation material provides design advantages.

Q: Is the contact material difference (Copper Alloy vs. Phosphor Bronze) significant?

A: The original TE Connectivity part uses Copper Alloy contacts, while all Amphenol BERGSTIK® variants use Phosphor Bronze contacts. Phosphor Bronze provides superior spring properties, fatigue resistance, and contact reliability compared to Copper Alloy. This material change represents an improvement in connector performance and durability. The 3M 2366-6221-TG maintains Copper Alloy contacts matching the original part.

Q: What is the current rating specification for these connectors?

A: All substitute parts maintain the 3A per contact current rating of the original TE Connectivity 2-104433-4. With 66 positions in a 2-row configuration, the total connector current capacity is 198A (66 positions × 3A per contact) when all positions are loaded.

Q: Are there any packaging differences between the substitute parts?

A: The original TE Connectivity 2-104433-4 packaging is not specified. The 3M 2366-6221-TG is supplied in bulk packaging. The Amphenol BERGSTIK® variants are supplied in bag packaging. Packaging differences do not affect electrical or mechanical performance and are relevant only for inventory management and handling procedures.

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