TE Connectivity 103741-8 Rectangular Connector: Equivalent & Substitute Parts

Part Overview

The TE Connectivity 103741-8 is an 8-position through-hole rectangular connector header from the AMPMODU Mod II series, designed for board-to-board or cable applications. This connector features a 0.100" (2.54mm) pitch, unshrouded design, and solder termination with push-pull fastening. The part is currently obsolete, making identification of active equivalent components essential for ongoing production and maintenance applications.

Key Parameters

Parameter	Value
Manufacturer Part Number	103741-8
Manufacturer	TE Connectivity AMP Connectors
Series	AMPMODU Mod II
Number of Positions	8
Pitch - Mating	0.100" (2.54mm)
Connector Type	Header, Breakaway
Contact Type	Male Pin
Mounting Type	Through Hole
Termination	Solder
Fastening Type	Push-Pull
Operating Temperature	-65°C ~ 105°C
Current Rating	3A
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the 103741-8 is determined by the following critical parameters that must remain constant:

Number of Positions: 8 positions (fixed requirement)
Pitch - Mating: 0.100" (2.54mm) (fixed requirement)
Connector Type: Header, Breakaway (fixed requirement)
Contact Type: Male Pin (fixed requirement)
Mounting Type: Through Hole (fixed requirement)
Termination: Solder (fixed requirement)
Fastening Type: Push-Pull (fixed requirement)
Operating Temperature Range: -65°C ~ 105°C (fixed requirement)
Current Rating: 3A (fixed requirement)

The substitute part 5-146282-8 maintains all critical electrical and mechanical parameters required for direct substitution. Variations in contact finish material (Tin-Lead to Tin), contact material (Phosphor Bronze to Copper Alloy), and insulation material (Thermoplastic to Liquid Crystal Polymer) are within acceptable substitution parameters for this connector category. The substitute part is active and RoHS3 compliant, addressing the obsolescence of the original part.

Parameter Comparison

Parameter	103741-8 (Original)	5-146282-8 (Substitute)
Manufacturer Part Number	103741-8	5-146282-8
Manufacturer	TE Connectivity AMP Connectors	TE Connectivity AMP Connectors
Series	AMPMODU Mod II	AMPMODU Mod II
Number of Positions	8	8
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)
Connector Type	Header, Breakaway	Header, Breakaway
Contact Type	Male Pin	Male Pin
Mounting Type	Through Hole	Through Hole
Termination	Solder	Solder
Fastening Type	Push-Pull	Push-Pull
Contact Length - Mating	0.230" (5.84mm)	0.230" (5.84mm)
Contact Length - Post	0.090" (2.29mm)	0.090" (2.29mm)
Overall Contact Length	0.410" (10.41mm)	0.410" (10.41mm)
Insulation Height	0.090" (2.29mm)	0.090" (2.29mm)
Contact Shape	Square	Square
Operating Temperature	-65°C ~ 105°C	-65°C ~ 105°C
Material Flammability Rating	UL94 V-0	UL94 V-0
Insulation Color	Black	Black
Current Rating	3A	3A
Contact Finish Thickness - Mating	100.0µin (2.54µm)	100.0µin (2.54µm)
Contact Finish Thickness - Post	100.0µin (2.54µm)	100.0µin (2.54µm)
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)
ECCN	EAR99	EAR99
HTSUS	8536.69.4040	8536.69.4040
Product Status	Obsolete	Active
RoHS Status	RoHS non-compliant	RoHS3 Compliant
Contact Finish - Mating	Tin-Lead	Tin
Contact Finish - Post	Tin-Lead	Tin
Contact Material	Phosphor Bronze	Copper Alloy
Insulation Material	Thermoplastic	Liquid Crystal Polymer (LCP)

Engineering Selection Recommendations

The 5-146282-8 is the direct active equivalent for the obsolete 103741-8. Both connectors maintain identical electrical and mechanical specifications across all critical parameters including pitch, position count, contact geometry, current rating, and operating temperature range.

The substitute part offers the following advantages:

Active Product Status: The 5-146282-8 is currently in active production, ensuring long-term availability and supply chain continuity.
RoHS3 Compliance: The substitute meets RoHS3 requirements, addressing regulatory compliance for new designs and production runs.
Enhanced Insulation Material: Liquid Crystal Polymer (LCP) insulation provides improved thermal and mechanical properties compared to thermoplastic.

The transition from Tin-Lead to Tin contact finish and from Phosphor Bronze to Copper Alloy contact material are standard material improvements within the AMPMODU Mod II series and do not affect functional compatibility or performance in standard applications.

Frequently Asked Questions (FAQ)

Q: Can the 5-146282-8 be used as a direct replacement for the 103741-8 in existing designs?

A: Yes. Both connectors share identical pitch (0.100"), position count (8), contact geometry, current rating (3A), and operating temperature range (-65°C ~ 105°C). The connectors are mechanically and electrically interchangeable.

Q: What is the difference between the contact finishes?

A: The original 103741-8 uses Tin-Lead finish, while the 5-146282-8 uses Tin finish. Both finishes provide equivalent electrical performance and corrosion resistance. The Tin finish on the substitute aligns with modern RoHS3 compliance requirements.

Q: Are there differences in insulation material between the two parts?

A: The 103741-8 uses thermoplastic insulation, while the 5-146282-8 uses Liquid Crystal Polymer (LCP). LCP provides superior thermal stability and mechanical strength, making it a material upgrade within the same connector family.

Q: Does the substitute part maintain the same mounting footprint?

A: Yes. Both connectors have identical contact lengths, insulation heights, and overall dimensions. The through-hole solder termination and push-pull fastening mechanism are unchanged.

Q: Is the 5-146282-8 available in the same packaging as the original?

A: The substitute is supplied in bulk packaging. Verify packaging requirements for your specific procurement process.

Q: What is the inventory status of the substitute part?

A: The 5-146282-8 has 848 pieces in new original stock, providing immediate availability for production and replacement applications.

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