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TE Connectivity AMP Connectors 5520259-4 — Modular Jacks (RJ)

TE Connectivity 5520259-4 Modular Jack, 8P8C RJ45

MPN5520259-4
Active

TE Connectivity, Modular Jack, 5520259-4, 8P8C (RJ45), 1x1 vertical, unshielded, through-hole, gold 50.0µin contacts, board lock, panel stops, -40°C to 85°C, tray.

$1.6600Ref. price · indicative, final on quote
RoHSRoHS Compliant
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5520259-4 specifications
ParameterValue
MountingThrough Hole
Connector typeJack
Operating temperature-40°C ~ 85°C
LED colorDoes Not Contain LED
Contact materialPhosphor Bronze
Housing materialPolybutylene Terephthalate (PBT), Polyester
PackageTray
RatingsCat3
FeaturesBoard Lock, Panel Stops
ShieldingUnshielded
OrientationVertical
TerminationSolder
Tab directionUser Selectable
Contact finishGold
Rows1
Number of ports1
Contact finish thickness50.0µin (1.27µm)
Number of positions (Contacts)8p8c (RJ45, Ethernet)

Product details

8P8C RJ45 Jack for Industrial Ethernet and Panel-Mount Applications

The 5520259-4: Board lock features anchor the part during wave solder and resist vibration in panel-mount installations; panel stops control the insertion depth against the chassis face.

Plating Grade and Contact Reliability

Mechanical Retention: Board Lock and Panel Stops

The integrated board lock holds the jack in place during the solder process and provides mechanical retention against cable strain after assembly. Panel stops set a consistent depth when the jack is mounted through a cutout in the enclosure or panel — no need for a separate spacer or alignment fixture. This combination simplifies the build sequence for panel-mount Ethernet ports.

Unshielded Design: When to Use It

This jack is unshielded, so it relies on the system's overall EMI strategy rather than providing a local shield can for cable-side grounding. It is a good fit for applications where the cable run is inside a grounded metal enclosure, or where the Ethernet PHY and routing are already isolated from noise sources. For runs through high-EMI environments or where the cable exits the enclosure, a shielded jack with a drain wire termination would be the alternative.

Frequently asked questions

Is 5520259-4 shielded or unshielded?

The 5520259-4 is unshielded. It has no integrated shield can, so cable-side grounding relies on the system enclosure or a separate shielded jack if EMI protection is needed.