PA9523 Modular Connector Plug 4P4C Equivalent & Substitute Parts

Part Overview

The PA9523 is a modular connector plug manufactured by Greenlee Communications, designed for 4-position 4-contact (4P4C) applications compatible with RJ9, RJ10, and RJ22 standards. This unshielded IDC (Insulation Displacement Contact) connector accommodates flat oval cable with stranded wires in a translucent clear housing.

The PA9523 is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this connector type.

Substiute Parts

PA9523

Greenlee CommunicationsIn Stock: 1100PA9523 Datasheet

Current PartRFQ

940-SP-3044

Stewart ConnectorIn Stock: 21739940-SP-3044 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PA9523 is determined by strict alignment of the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Connector type must be plug configuration
• Contact count must be 4P4C (4-position 4-contact)
• Shielding configuration must be unshielded
• Termination method must be IDC
• Housing color must be translucent clear
• RJ9, RJ10, RJ22 compatibility must be maintained
• Regulatory compliance (RoHS, ECCN, HTSUS) must be equivalent or superior

The substitute part 940-SP-3044 manufactured by Stewart Connector satisfies all primary substitution criteria. Both parts are classified within the same modular connector category and share identical functional specifications for position count, shielding, termination, and color.

Parameter Comparison

Engineering Selection Recommendations

940-SP-3044 as Primary Substitute:

The 940-SP-3044 is the designated manufacturer-recommended substitute for the PA9523. This part maintains functional equivalence across all critical parameters: 4P4C contact configuration, unshielded design, IDC termination, and translucent clear housing.

The 940-SP-3044 offers the following advantages:

• Active Product Status: The substitute is in active production, ensuring long-term availability and supply chain stability compared to the obsolete PA9523.
• Enhanced Compliance: ROHS3 compliance exceeds the RoHS compliance of the original part, meeting current regulatory requirements.
• Expanded Wire Compatibility: Accepts both solid and stranded wires, providing greater flexibility than the PA9523 specification of stranded wires only.
• Documented Electrical Ratings: The substitute provides specified electrical characteristics (1.5 A current rating, 150V voltage rating) and contact material specifications (Phosphor Bronze with 50.0µin gold finish), enabling precise electrical design verification.
• Inventory Availability: 21,672 units in stock provide immediate procurement capability.

Both parts share identical ECCN (EAR99) and HTSUS (8536.69.8000) classifications, confirming regulatory equivalence for export and tariff purposes.

Frequently Asked Questions (FAQ)

Q: Can the 940-SP-3044 directly replace the PA9523 in existing designs?

A: Yes. Both connectors are 4P4C plug configurations with unshielded IDC termination, translucent clear housing, and RJ9/RJ10/RJ22 compatibility. The 940-SP-3044 accepts both solid and stranded wires, making it compatible with the PA9523's stranded wire specification.

Q: What is the significance of the PA9523 being obsolete?

A: Obsolete status indicates the PA9523 is no longer manufactured or supported by Greenlee Communications. The 940-SP-3044 is an active product in current production, ensuring continued availability for new designs and replacement requirements.

Q: Are there differences in electrical performance between these parts?

A: The 940-SP-3044 provides documented electrical ratings (1.5 A, 150V) and contact specifications (Phosphor Bronze with 50.0µin gold plating). The PA9523 input data does not include equivalent electrical specifications. Both parts function within standard 4P4C modular connector electrical parameters.

Q: Does the 940-SP-3044 meet current regulatory requirements?

A: Yes. The 940-SP-3044 is ROHS3 compliant, exceeding the RoHS compliance of the PA9523. Both parts share identical ECCN (EAR99) and HTSUS (8536.69.8000) classifications.

Q: What is the packaging difference between these parts?

A: The PA9523 packaging specification is not provided in the available data. The 940-SP-3044 is supplied in bulk packaging. Confirm packaging requirements with procurement specifications.

Q: Can the 940-SP-3044 accommodate flat oval cable?

A: Yes. The 940-SP-3044 is specified for flat oval cable with solid or stranded wires, maintaining compatibility with the PA9523's flat oval cable requirement.