937-SP-3044-LT Modular Connector Equivalent & Substitute Parts

Part Overview

The 937-SP-3044-LT is a modular plug connector manufactured by Stewart Connector, designed for 4p4c (RJ9, RJ10, RJ22) applications with unshielded IDC termination. This connector accommodates flat oval cable with stranded wires and is rated for 1.5A at 150V. The product is currently obsolete, making identification of equivalent substitute parts essential for ongoing system maintenance and component procurement.

Substiute Parts

937-SP-3044-LT

Stewart ConnectorIn Stock: 808937-SP-3044-LT Datasheet

Current PartRFQ

TM3P-44P

Hirose Electric Co LtdIn Stock: 2250TM3P-44P Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 937-SP-3044-LT is determined by the following critical parameters:

• Connector Type: Must be Plug
• Position/Contact Configuration: Must be 4p4c (RJ9, RJ10, RJ22)
• Termination Method: Must be IDC
• Shielding: Must be Unshielded
• Cable Type: Must accommodate Flat Oval Cable with Stranded Wires
• Housing Material: Must be Polycarbonate (PC)
• Contact Material: Must be Phosphor Bronze
• Contact Finish: Must be Gold

The TM3P-44P from Hirose Electric Co Ltd meets all mandatory substitution criteria. While the TM3P-44P exhibits lower current (500 mA) and voltage (125V) ratings compared to the original part, these parameters remain within acceptable operational ranges for standard 4p4c modular connector applications. The substitute part maintains identical connector type, position configuration, termination method, shielding, cable compatibility, housing material, contact material, and contact finish specifications.

Parameter Comparison

Engineering Selection Recommendations

The TM3P-44P is the designated manufacturer-recommended substitute for the obsolete 937-SP-3044-LT. Selection of this substitute is supported by the following factors:

• Product Status: The TM3P-44P maintains Active status, ensuring ongoing availability and supply chain continuity.
• Regulatory Compliance: Both parts share identical REACH and ECCN classifications, confirming equivalent regulatory standing.
• Environmental Classification: Both parts carry MSL 1 (Unlimited) ratings, indicating identical moisture sensitivity profiles.
• Tariff Classification: Identical HTSUS codes (8536.69.8000) confirm equivalent trade classification.
• RoHS Compliance: The TM3P-44P is ROHS3 Compliant, meeting current environmental standards.

The TM3P-44P is suitable for direct substitution in applications where the 937-SP-3044-LT was previously specified, provided that system current and voltage requirements do not exceed 500 mA and 125V respectively.

Frequently Asked Questions (FAQ)

Q: Can the TM3P-44P be used as a direct replacement for the 937-SP-3044-LT?

A: Yes. The TM3P-44P meets all mandatory substitution criteria including connector type, position configuration, termination method, shielding, cable compatibility, housing material, contact material, and contact finish. Both parts are classified under identical tariff and regulatory frameworks.

Q: What are the differences in electrical ratings between these parts?

A: The 937-SP-3044-LT is rated for 1.5A at 150V, while the TM3P-44P is rated for 500 mA at 125V. The substitute part has lower current and voltage ratings. Verify that your application requirements do not exceed these specifications before implementation.

Q: Are there physical dimension differences?

A: The length specifications differ slightly: 937-SP-3044-LT measures 0.525" (13.34mm) while TM3P-44P measures 0.528" (13.40mm). This 0.003" (0.06mm) difference is within standard manufacturing tolerances for modular connectors and does not affect mechanical compatibility.

Q: What is the wire gauge specification for the TM3P-44P?

A: The TM3P-44P is specified for 26 AWG wire gauge. Ensure your cable assembly uses compatible wire gauge specifications.

Q: Are both parts environmentally compliant?

A: Yes. Both parts carry REACH Unaffected status and identical ECCN classifications (EAR99). The TM3P-44P additionally carries ROHS3 Compliant certification, meeting current environmental standards.

Q: What is the availability status of each part?

A: The 937-SP-3044-LT is obsolete with 745 pieces in current inventory. The TM3P-44P is Active with 2200 pieces in current inventory, ensuring reliable long-term supply availability.