Molex 0548020439 Firewire IEEE 1394 Receptacle Connector

Part Overview

The Molex 0548020439 is a Firewire (IEEE 1394) receptacle connector with 4 positions, designed for through-hole, right-angle mounting applications. This connector features a shielded design with gold-plated contacts and operates across a temperature range of -25°C to 85°C at a rated voltage of 5V with a current capacity of 0.5A.

The product is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support, maintenance, and production continuity. Identifying compatible alternatives ensures system reliability and component availability for legacy and new applications requiring IEEE 1394 connectivity.

Substiute Parts

0548020439

MolexIn Stock: 7000548020439 Datasheet

Current PartRFQ

A-IEE-M4P

Assmann WSW ComponentsIn Stock: 1039A-IEE-M4P Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Molex 0548020439 is determined by strict alignment of the following critical parameters:

Mandatory Matching Criteria:

• Connector Type: Firewire (IEEE 1394)
• Number of Contacts: 4 positions
• Gender: Receptacle
• Mounting Type: Through Hole, Right Angle
• Termination Method: Solder
• Contact Finish: Gold

Allowable Parameter Variations: Substitute parts may exceed the original specifications in operating temperature range, current rating, and voltage rating, provided they maintain compatibility with the IEEE 1394 standard and preserve the mechanical and electrical interface requirements.

The Assmann WSW Components A-IEE-M4P qualifies as a substitute based on matching all mandatory criteria while offering enhanced electrical performance characteristics and active product status.

Parameter Comparison

Engineering Selection Recommendations

The Assmann WSW Components A-IEE-M4P is a qualified substitute for the Molex 0548020439 based on the following engineering criteria:

Functional Compatibility: Both connectors maintain identical IEEE 1394 Firewire receptacle architecture with 4-position through-hole, right-angle configuration and solder termination, ensuring mechanical and electrical interface compatibility.

Compliance Status: The A-IEE-M4P maintains ROHS3 compliance equivalent to the original part, supporting regulatory requirements for electronic component procurement.

Product Availability: The A-IEE-M4P carries active product status with documented inventory availability, providing supply chain continuity for applications currently using the obsolete Molex 0548020439.

Performance Envelope: The substitute part operates within an extended temperature range (-55°C to 105°C) and supports higher current (1.5A) and voltage (40V) ratings, making it suitable for applications with equivalent or more demanding electrical requirements.

Frequently Asked Questions (FAQ)

Q: Can the Assmann A-IEE-M4P directly replace the Molex 0548020439 in existing designs?

A: Yes. Both connectors share identical connector type (IEEE 1394 Firewire), contact count (4), gender (receptacle), mounting configuration (through-hole, right-angle), and termination method (solder). The mechanical and electrical interfaces are compatible.

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

A: The primary differences are product status (Molex is obsolete; Assmann is active), operating temperature range (Molex: -25°C to 85°C; Assmann: -55°C to 105°C), current rating (Molex: 0.5A; Assmann: 1.5A), and voltage rating (Molex: 5V; Assmann: 40V). The Assmann part offers enhanced electrical performance specifications.

Q: Are there packaging differences between these parts?

A: Yes. The Molex 0548020439 packaging is not specified in available documentation. The Assmann A-IEE-M4P is supplied in tray packaging. Verify packaging requirements for your procurement and assembly processes.

Q: Do both connectors meet RoHS compliance requirements?

A: Yes. Both the Molex 0548020439 and Assmann A-IEE-M4P are ROHS3 compliant, meeting current environmental and regulatory standards for electronic component manufacturing.

Q: What is the contact finish specification for both connectors?

A: Both connectors feature gold-plated contacts, ensuring consistent electrical performance and corrosion resistance across mating cycles.