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CUI Devices MR-3501 — Audio Connectors

CUI Devices MR-3501 Phone Jack, 3.5mm, 1 A, Female

MPNMR-3501
Active

CUI Devices phone jack, order code MR-3501, female, 2 conductors mono, 3.50mm industry-recognized mating diameter, 1 A, nickel-plated contacts, free-hanging (in-line), solder termination.

$1.4500Ref. price · indicative, final on quote
CUI Devices MR-3501 datasheet (PDF)
RoHSROHS3 Compliant
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

MR-3501 key specifications
ParameterValue
MountingFree Hanging (In-Line)
Connector typePhone Jack
Current rating1 A
Cable opening0.157\" (4.00mm)
Operating temperature-20°C~70°C
Body colorBlack
Body materialBrass
Contact materialBrass, Phosphor Bronze
Housing materialPolyethylene (PE)
Mating length (Depth)0.551\" (14.00mm)
Contact material - platingNickel
GenderFemale

All specifications

MR-3501 additional specifications
ParameterValue
PackageBag
ShieldingUnshielded
TerminationSolder
Signal linesMono
Actual diameter0.142\" (3.60mm)
Internal switchDoes Not Contain Switch
Number of positions (Contacts)2 Conductors, 2 Contacts
Industry recognized mating diameter3.50mm (0.141\", 1/8\", Mini Plug) - Headphone

Product details

3.5mm mono jack, nickel-plated contacts

The MR-3501 is a 2-conductor, 2-contact mono phone jack from CUI Devices, accepting a 3.50mm (1/8", mini plug) mating plug. Rated 1 A with nickel-plated brass and phosphor bronze contacts, the jack is unshielded and terminates via solder to a free-hanging cable.

Same series, different plug diameter

The MR-3501 accepts a 3.50mm plug, while the same-series MR-2501 accepts a 2.50mm (3/32", sub-mini) plug — the body and housing materials are shared, so the choice is set by the mating plug diameter in the existing harness.

Frequently asked questions

What compliance documentation does CUI Devices provide for MR-3501?

The MR-3501 is ROHS3 Compliant per the manufacturer.