TM3RA-66 Modular Connector Equivalent & Substitute Parts

Part Overview

The TM3RA-66 is a jack modular connector with 6 positions and 6 contacts (6p6c), supporting RJ11, RJ12, RJ14, and RJ25 configurations. It features vertical through-hole mounting with solder termination and unshielded design. The main part is classified as obsolete, making substitute identification critical for ongoing production and maintenance applications. The TM3RA-66(50) variant provides an active product alternative with identical electrical and mechanical specifications.

Substiute Parts

TM3RA-66

Hirose Electric Co LtdIn Stock: 1041TM3RA-66 Datasheet

Current PartRFQ

TM3RA-66(50)

Hirose Electric Co LtdIn Stock: 2248TM3RA-66(50) Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The TM3RA-66(50) qualifies as a direct substitute based on identical alignment across all critical substitution parameters:

• Connector type, contact configuration, and port/row structure match exactly
• Mounting method (through hole), orientation (vertical), and termination (solder) are identical
• Electrical properties remain constant: unshielded design, phosphor bronze contacts with gold finish, PBT housing
• Operating temperature range (-25°C ~ 60°C) and MSL rating (1) are unchanged
• Series designation (TM-DSA) and base product number (TM3R) confirm design family continuity

The primary distinction is product status: TM3RA-66 is obsolete, while TM3RA-66(50) is active. Packaging differs (tray for the substitute), and RoHS compliance status changes from non-compliant to ROHS3 compliant.

Parameter Comparison

Engineering Selection Recommendations

The TM3RA-66(50) is the appropriate substitute for the obsolete TM3RA-66. Both parts maintain identical electrical and mechanical specifications, ensuring direct functional compatibility in applications requiring 6p6c jack modular connectors with vertical through-hole solder termination.

The TM3RA-66(50) offers the advantage of active product status, ensuring continued availability and supply chain reliability. Additionally, ROHS3 compliance of the substitute aligns with current regulatory requirements, whereas the original part carries non-compliant status. Both parts maintain REACH unaffected status and EAR99 export classification.

Selection between these parts should prioritize the active TM3RA-66(50) for new designs and ongoing production. The obsolete TM3RA-66 remains functionally equivalent for legacy system maintenance where existing inventory is available.

Frequently Asked Questions (FAQ)

Q: Are TM3RA-66 and TM3RA-66(50) electrically identical?

A: Yes. Both parts share identical contact configuration (6p6c), contact material (phosphor bronze with gold finish), operating temperature range (-25°C ~ 60°C), and electrical properties. They are direct functional equivalents.

Q: What is the difference between TM3RA-66 and TM3RA-66(50)?

A: The primary differences are product status (obsolete vs. active), packaging (unspecified vs. tray), and RoHS compliance (non-compliant vs. ROHS3 compliant). Electrical and mechanical specifications are identical.

Q: Can TM3RA-66(50) replace TM3RA-66 in existing designs?

A: Yes. The TM3RA-66(50) is a direct substitute with identical mounting, termination, and connector specifications. No design modifications are required.

Q: Why is RoHS compliance different between the two parts?

A: The TM3RA-66 is classified as RoHS non-compliant, while TM3RA-66(50) is ROHS3 compliant. This reflects manufacturing updates and regulatory alignment in the active product variant.

Q: What packaging is supplied for each part?

A: TM3RA-66 packaging is unspecified in available documentation. TM3RA-66(50) is supplied in tray packaging.

Q: Are both parts suitable for RJ11, RJ12, RJ14, and RJ25 applications?

A: Yes. Both parts support all four modular connector standards through their 6p6c configuration.