Equivalent & Substitute Parts for 54101-T08-03

Part Overview

The Amphenol ICC 54101-T08-03 is a rectangular connector header, through-hole mounted, with 3 positions at 0.100" (2.54mm) pitch. This connector belongs to the BERGSTIK® series and is classified as obsolete. Due to its obsolete status, equivalent substitute parts from active manufacturers are necessary for new designs and ongoing production requirements. The substitutes listed maintain functional compatibility through matching electrical and mechanical parameters while offering active product status and improved compliance certifications.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Pitch - Mating	0.100" (2.54mm)
Number of Positions	3
Number of Rows	1
Mounting Type	Through Hole
Termination	Solder
Fastening Type	Push-Pull
Contact Shape	Square
Material Flammability Rating	UL94 V-0
Current Rating	3A per Contact
Operating Temperature	-65°C ~ 125°C
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict adherence to the following parameters:

Primary Matching Criteria:

Connector Type: Header
Contact Type: Male Pin
Pitch - Mating: 0.100" (2.54mm)
Number of Positions: 3
Number of Rows: 1
Mounting Type: Through Hole
Termination: Solder
Fastening Type: Push-Pull
Material Flammability Rating: UL94 V-0
Moisture Sensitivity Level: 1 (Unlimited)

Secondary Compatibility Parameters:

Contact Shape: Square or Circular (both acceptable for board-to-board applications)
Current Rating: 3A minimum
Operating Temperature Range: Must encompass or match -65°C ~ 125°C or -55°C ~ 125°C

The substitute parts are grouped into two categories based on contact geometry and finish specifications:

Group 1 - Square Contact Geometry (Molex KK254 Series): Parts 0423751106, 0423751923, 0423752487, and 0423752522 maintain square contact shape matching the original design. These parts are manufactured by Molex and carry ROHS3 compliance.

Group 2 - Circular Contact Geometry (Preci-Dip 350 Series & 3M 2300 Series): Parts from Preci-Dip (350-80-103-00-013101, 350-80-103-01-666101, 350-V3-103-00-006101) and 3M (2303-6111-TB, 2303-6111-TP, 2303-6151-TB) feature circular contact geometry. Preci-Dip parts are ROHS3 compliant; 3M parts are RoHS non-compliant.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Connector Type	Contact Type	Pitch (mm)	Positions	Rows	Contact Shape	Mounting Type	Termination	Fastening Type	Current Rating (A)	Operating Temp (°C)	UL94 Rating	RoHS Status	Inventory (Pcs)
54101-T08-03	Amphenol ICC	Header	Male Pin	2.54	3	1	Square	Through Hole	Solder	Push-Pull	3	-65 to 125	V-0	Non-compliant	1075
0423751106	Molex	Header, Breakaway	Male Pin	2.54	3	1	Square	Through Hole	Solder	Push-Pull	—	—	V-0	ROHS3 Compliant	1049
0423751923	Molex	Header, Breakaway	Male Pin	2.54	3	1	Square	Through Hole	Solder	Push-Pull	—	—	V-0	ROHS3 Compliant	888
0423752487	Molex	Header, Breakaway	Male Pin	2.54	3	1	Square	Through Hole	Solder	Push-Pull	—	—	V-0	ROHS3 Compliant	797
0423752522	Molex	Header, Breakaway	Male Pin	2.54	3	1	Square	Through Hole	Solder	Push-Pull	—	—	V-0	ROHS3 Compliant	1126
2303-6111-TB	3M	Header	Male Pin	2.54	3	1	Square	Through Hole	Solder	Push-Pull	3	-55 to 105	V-0	Non-compliant	959
2303-6111-TP	3M	Header	Male Pin	2.54	3	1	Square	Through Hole	Solder	Push-Pull	3	-55 to 105	V-0	Non-compliant	903
2303-6151-TB	3M	Header	Male Pin	2.54	3	1	Square	Through Hole	Solder	Push-Pull	3	-55 to 105	V-0	Non-compliant	789
350-80-103-00-013101	Preci-Dip	Header	Male Pin	2.54	3	1	Circular	Through Hole	Solder	Push-Pull	3	-55 to 125	V-0	ROHS3 Compliant	943
350-80-103-01-666101	Preci-Dip	Header	Male Pin	2.54	3	1	Circular	Through Hole	Solder	Push-Pull	3	-55 to 125	V-0	ROHS3 Compliant	1065
350-V3-103-00-006101	Preci-Dip	Header	Male Pin	2.54	3	1	Circular	Through Hole	Solder	Push-Pull	3	-55 to 125	V-0	ROHS3 Compliant	971

Engineering Selection Recommendations

For RoHS3 Compliance Requirements:

Molex KK254 series (0423751106, 0423751923, 0423752487, 0423752522) and Preci-Dip 350 series (350-80-103-00-013101, 350-80-103-01-666101, 350-V3-103-00-006101) are ROHS3 compliant and suitable for applications requiring modern regulatory compliance. These parts maintain active product status.

For Square Contact Geometry Matching:

Molex KK254 series parts preserve the square contact shape of the original 54101-T08-03. These are recommended when PCB layout and contact geometry specifications require exact dimensional matching.

For Circular Contact Geometry:

Preci-Dip 350 series parts feature circular contact geometry and are suitable for applications where contact shape flexibility exists. These parts are ROHS3 compliant and support operating temperatures to 125°C.

For Extended Temperature Range:

Preci-Dip 350 series parts support -55°C to 125°C, matching the original part's upper temperature limit. 3M 2300 series parts support -55°C to 105°C, which is narrower than the original specification.

For Active Product Status:

All Molex and Preci-Dip substitute parts carry active product status. 3M 2300 series parts (2303-6111-TB, 2303-6111-TP, 2303-6151-TB) are active but are RoHS non-compliant, limiting their use in regulated applications.

Frequently Asked Questions (FAQ)

Q: Can Molex KK254 parts directly replace the Amphenol ICC 54101-T08-03?

A: Yes. Molex KK254 series parts (0423751106, 0423751923, 0423752487, 0423752522) maintain matching pitch (2.54mm), position count (3), contact type (male pin), mounting method (through hole), and fastening type (push-pull). All carry UL94 V-0 flammability rating and MSL 1. Molex parts are ROHS3 compliant, whereas the original part is RoHS non-compliant.

Q: What is the difference between square and circular contact geometry?

A: The original 54101-T08-03 features square contact pins. Molex KK254 parts maintain square geometry. Preci-Dip 350 series parts use circular contact geometry. Both geometries are compatible with standard 0.100" (2.54mm) pitch receptacles, but square contacts may provide tighter tolerances in specific applications.

Q: Are Preci-Dip 350 series parts suitable replacements?

A: Yes. Preci-Dip 350 series parts (350-80-103-00-013101, 350-80-103-01-666101, 350-V3-103-00-006101) match all critical parameters: 2.54mm pitch, 3 positions, male pin contact, through-hole mounting, solder termination, and push-pull fastening. These parts are ROHS3 compliant and support -55°C to 125°C operating temperature. The primary difference is circular contact geometry instead of square.

Q: Why are 3M 2300 series parts listed if they are RoHS non-compliant?

A: 3M 2300 series parts (2303-6111-TB, 2303-6111-TP, 2303-6151-TB) are functionally equivalent and maintain active product status. They are included for applications where RoHS compliance is not required. These parts support 3A current rating and UL94 V-0 flammability rating but operate at -55°C to 105°C, which is narrower than the original specification.

Q: What is the significance of "Number of Positions Loaded" in the Molex parts?

A: Molex part 0423751106 lists "Number of Positions Loaded: 2," while other Molex parts list "All." This indicates the number of contact positions pre-installed in the header. For applications requiring all 3 positions populated, select parts with "Number of Positions Loaded: All" (0423751923, 0423752487, 0423752522).

Q: How do contact finish specifications affect substitution?

A: The original 54101-T08-03 features tin mating contact finish (100.0µin thickness). Molex parts offer either gold (15.0µin or 30.0µin) or tin (100.0µin) mating finishes. Preci-Dip parts offer tin or gold (29.5µin) mating finishes. Gold finishes provide enhanced corrosion resistance; tin finishes provide cost efficiency. Selection depends on environmental exposure and application requirements.

Q: Can these parts be used interchangeably in existing designs?

A: Mechanical and electrical interchangeability is confirmed for all listed substitutes based on matching pitch, position count, contact type, mounting method, and fastening type. However, PCB layout verification is recommended due to minor variations in overall contact length and insulation height across different manufacturers.

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