Molex 0705510072 Rectangular Connector - Equivalent & Substitute Parts

Part Overview

The Molex 0705510072 is a shrouded right-angle header connector with 3 positions at 2.54mm pitch, designed for through-hole mounting in board-to-cable applications. This connector features male pins with gold-plated mating contacts and tin-plated posts, suitable for automotive, industrial, medical, and general-purpose applications. The part is currently active in production with 959 units in stock. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design flexibility permits component interchange based on equivalent electrical and mechanical specifications.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Number of Positions	3
Pitch - Mating	0.100" (2.54mm)
Mounting Type	Through Hole, Right Angle
Shrouding	Shrouded - 4 Wall
Termination	Solder
Contact Finish - Mating	Gold
Operating Temperature Range	-40°C ~ 105°C
Voltage Rating	250V
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

The TE Connectivity AMP Connectors part number 103904-2 qualifies as a substitute for the Molex 0705510072 based on the following critical parameters:

Connector Configuration: Both parts are 3-position shrouded headers with 4-wall shrouding
Pitch Specification: Both maintain 0.100" (2.54mm) mating pitch
Mounting Method: Both are through-hole, right-angle mounted connectors
Contact Type: Both feature male pins with gold-plated mating surfaces
Termination: Both use solder termination
Flammability Rating: Both meet UL94 V-0 standard
Fastening: Both incorporate latch holder fastening mechanisms

Substitution is valid where design requirements permit tolerance of minor variations in contact length, insulation material composition, and operating temperature range extremes.

Parameter Comparison

Parameter	Molex 0705510072	TE Connectivity 103904-2	Compatibility Notes
Manufacturer	Molex	TE Connectivity AMP Connectors	Different manufacturers
Series	SL 70551	AMPMODU MTE	Different series designations
Connector Type	Header	Header	Equivalent
Contact Type	Male Pin	Male Pin	Equivalent
Number of Positions	3	3	Equivalent
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)	Equivalent
Mounting Type	Through Hole, Right Angle	Through Hole, Right Angle	Equivalent
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall	Equivalent
Termination	Solder	Solder	Equivalent
Contact Length - Mating	0.240" (6.10mm)	0.230" (5.84mm)	0.26mm variation
Contact Length - Post	0.130" (3.30mm)	0.130" (3.30mm)	Equivalent
Insulation Height	0.215" (5.45mm)	0.200" (5.08mm)	0.37mm variation
Contact Finish - Mating	Gold	Gold	Equivalent
Contact Finish Thickness - Mating	30.0µin (0.76µm)	30.0µin (0.76µm)	Equivalent
Contact Material	Phosphor Bronze	Brass	Different base materials
Insulation Material	Polyester, Glass Filled	Thermoplastic	Different materials
Operating Temperature	-40°C ~ 105°C	-65°C ~ 105°C	TE part has wider low-temperature range
Voltage Rating	250V	Not specified	Molex specifies 250V
Current Rating	Not specified	3A	TE part specifies 3A
Material Flammability Rating	UL94 V-0	UL94 V-0	Equivalent
RoHS Status	ROHS3 Compliant	RoHS non-compliant	Compliance difference
Packaging	Bulk	Tube	Different packaging formats
Inventory	959 Pcs	6814 Pcs	TE part has higher availability

Engineering Selection Recommendations

Primary Part Selection: The Molex 0705510072 is recommended for applications requiring ROHS3 compliance and where the 250V voltage rating specification is a design requirement. This part maintains active production status with established supply.

Substitute Part Selection: The TE Connectivity 103904-2 is suitable as a substitute where RoHS3 compliance is not mandated and the application does not require explicit voltage rating documentation. The TE part offers extended low-temperature operating range (-65°C versus -40°C) and higher current rating specification (3A). The TE part is available in higher quantities, supporting applications with greater volume requirements.

Compliance Consideration: Applications subject to RoHS3 regulatory requirements must use the Molex 0705510072. The TE Connectivity 103904-2 is designated as RoHS non-compliant and is not suitable for regulated applications.

Physical Dimension Tolerance: Minor variations exist in contact length and insulation height between the two parts. Board layout designs must accommodate the 0.26mm mating contact length variation and 0.37mm insulation height variation to ensure proper mating and clearance.

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity 103904-2 be used as a direct replacement for the Molex 0705510072 in all applications?

A: No. The TE part is suitable only for applications where RoHS3 compliance is not required. The Molex part is ROHS3 compliant; the TE part is not. For regulated applications, the Molex part must be used.

Q: What are the key electrical differences between these connectors?

A: The Molex part specifies 250V voltage rating. The TE part specifies 3A current rating. Both parts feature gold-plated mating contacts with equivalent finish thickness (30.0µin). The TE part operates across a wider temperature range (-65°C to 105°C versus -40°C to 105°C).

Q: Are there physical compatibility issues when substituting one part for the other?

A: Minor dimensional variations exist. The mating contact length differs by 0.26mm (Molex 0.240" versus TE 0.230"), and insulation height differs by 0.37mm (Molex 0.215" versus TE 0.200"). Board designs must accommodate these variations to ensure proper connector seating and clearance.

Q: What is the difference in contact material between these parts?

A: The Molex part uses phosphor bronze contacts; the TE part uses brass contacts. Both materials are suitable for general-purpose connector applications. Phosphor bronze offers slightly higher spring force characteristics.

Q: How do the packaging formats differ?

A: The Molex part is supplied in bulk packaging; the TE part is supplied in tube packaging. This affects handling, storage, and component placement processes but does not affect electrical or mechanical performance.

Q: Which part should be selected for new designs?

A: For new designs requiring RoHS3 compliance, select the Molex 0705510072. For applications without RoHS3 requirements where extended low-temperature operation is beneficial, the TE Connectivity 103904-2 is acceptable. Verify voltage and current requirements against application specifications before final selection.

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