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TE Connectivity AMP Connectors 5-557972-3 — Modular / RJ Connectors

TE 5-557972-3 RJ45 Plug, IDC, Cat5, 8p8c, Obsolete

MPN5-557972-3
Obsolete

TE Connectivity 5-557972-3 RJ45 plug, IDC termination, 8p8c, Cat5 rated, 50.0µin gold contacts, translucent-blue polycarbonate housing, for 26-28 AWG solid flat oval cable.

Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for stock & sourcing questions
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent supplier — new & surplus connector stock· Listing updated Jul 2026

Specifications

5-557972-3 specifications
ParameterValue
Cable typeFlat Oval Cable, Solid Wires
Connector typePlug
Wire gauge26-28 AWG
ColorTranslucent - Blue
Contact materialPhosphor Bronze
Housing materialPolycarbonate (PC)
Length0.895\" (22.73mm)
PackageBulk
RatingsCat5
ShieldingUnshielded
TerminationIDC
Contact finishGold
Contact finish thickness50.0µin (1.27µm)
Number of positions (Contacts)8p8c (RJ45, Ethernet)

Product details

It carries a Cat5 rating, which means it is specified for 100 MHz signaling and 100 Mbps data rates — the standard for basic Ethernet drops and structured cabling. The translucent-blue polycarbonate housing allows a quick visual check that the conductors are fully seated through the IDC slots, a practical aid during field termination or harness assembly.

Termination and Cable Compatibility

Termination is IDC — insulation displacement — so no stripping or soldering is needed. The plug accepts 26-28 AWG solid wires in a flat oval cable profile.

Sourcing Reality for an Obsolete Part

This part is marked Obsolete.

Frequently asked questions

Where can I buy 5-557972-3?

Submit an RFQ for current availability and pricing.

Is 5-557972-3 obsolete?

Yes, the TE Connectivity 5-557972-3 RJ45 plug is listed as Obsolete. No manufacturer-specified replacement has been published.

What type of cable does 5-557972-3 use?

It terminates onto flat oval cable with solid wires in the 26-28 AWG range, using IDC (insulation displacement) contacts.