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TE Connectivity AMP Connectors 5-557961-2 — Modular / RJ Connectors

TE 5-557961-2 RJ45 Plug, Cat5, IDC, 8p8c

MPN5-557961-2
Obsolete

TE Connectivity RJ45 plug, 8p8c (Ethernet), Cat5 rated, IDC termination, 26-28 AWG stranded round cable, gold 50.0µin contacts, translucent clear polycarbonate housing.

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 China distributor & sourcing agent· Listing updated Jul 2026

Specifications

5-557961-2 specifications
ParameterValue
Cable typeRound Cable, Stranded Wires
Connector typePlug
Wire gauge26-28 AWG
ColorTranslucent - Clear
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

RJ45 IDC Plug for Stranded Round Cable

The translucent clear polycarbonate housing lets you visually confirm each conductor is fully seated in its slot before the cover is closed. Rated for Cat5 performance, this plug is suited for 100 MHz Ethernet applications (10/100BASE-T) in structured cabling, industrial control panels, and test equipment where a field-installable, no-solder termination is required. The plug is unshielded, so it is intended for UTP (unshielded twisted pair) cable runs. For shielded environments, a shielded RJ45 plug and jack would be needed to maintain the ground path through the connector.

Cat5 Rating and Cable Compatibility

The Cat5 rating means the plug meets the performance requirements for 100 MHz operation — sufficient for 10BASE-T and 100BASE-TX Ethernet. It is not rated for Cat5e or Cat6 frequencies (100 MHz+ with tighter crosstalk limits), so it should not be specified for Gigabit Ethernet (1000BASE-T) or higher-speed networks where the cable and connector pair must meet Cat5e or Cat6 channel specifications. The 26-28 AWG stranded wire range matches the solid or stranded conductors found in typical Cat5 patch cables. Stranded wire is more flexible for patch cords; solid wire is typical for horizontal runs terminated in a patch panel. The IDC slot geometry is designed for the stranded wire diameter within this gauge range.

Obsolete — Sourcing via RFQ

We source this part to order against an RFQ.

Frequently asked questions

What is the exact specifications of 5-557961-2 connector?

Design engineers validating fit need accurate specs like wire gauge, termination, and rating.

Is 5-557961-2 obsolete and where can I buy it?

Sourcing buyers need to know lifecycle status and find distributors with remaining stock.

What is the equivalent or replacement for 5-557961-2?

When the part is obsolete, engineers and buyers need a drop-in alternative to continue production or repairs.

How much does 5-557961-2 cost per unit?

Buyers compare prices across distributors to optimize BOM cost.

Which distributors currently have 5-557961-2 in stock?

Urgent BOM fills require immediate availability from trusted sources.

Is 5-557961-2 compatible with Cat5e or Cat6 cables?

Maintenance techs and installers need to ensure the plug works with the cable category used.