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Hirose Electric Co Ltd TNCJ-U.FLJ-PA(40) — RF / Coaxial Connectors

TNCJ-U.FLJ-PA(40) TNC to U.FL Adapter, 50 Ohm, 6 GHz

MPNTNCJ-U.FLJ-PA(40)
Obsolete

Hirose U.FL series between-series adapter, TNC jack to U.FL jack, straight, 50 Ohms, DC to 6 GHz, gold-plated beryllium copper center contacts, panel mount with flange, nickel-plated brass body.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TNCJ-U.FLJ-PA(40) key specifications
ParameterValue
SeriesU.FL
Adapter typeJack to Jack
MountingPanel Mount
Adapter seriesTNC to U.FL (UMCC)
Fastening typeSnap-On, Threaded
Conversion typeBetween Series
Frequency - max6 GHz
Mounting featureFlange
Operating temperature-40°C ~ 90°C
Body materialBrass
Dielectric materialPolytetrafluoroethylene (PTFE)
Center contact materialBeryllium Copper

All specifications

TNCJ-U.FLJ-PA(40) additional specifications
ParameterValue
StyleStraight
PackageBulk
Impedance50 Ohms
Body finishNickel
Center genderFemale to Male
Mating cycles30
Center contact platingGold
Convert to (Adapter end)U.FL (UMCC) Jack, Male Pin
Convert from (Adapter end)TNC Jack, Female Socket

Product details

The TNCJ-U.FLJ-PA(40) is a between-series coaxial adapter from Hirose's U.FL series, converting a TNC jack (female socket) to a U.FL (UMCC) jack (male pin). The body is nickel-plated brass; the center contacts are gold-plated beryllium copper, good for the 30 mating cycles this adapter is rated for.

Obsolete — Sourcing Reality

This adapter is listed as Obsolete.

What the 6 GHz and 50 Ohm Ratings Mean

The 50 Ohm impedance matches the standard for RF test equipment, antennas, and most module ports. The TNC side uses a threaded coupling for a vibration-resistant connection; the U.FL side uses a snap-on latch, which is quick to mate but limits the reconnection count to 30 cycles.

Frequently asked questions

Where can I buy TNCJ-U.FLJ-PA(40)?

TNCJ-U.FLJ-PA(40) is obsolete and sourced through independent distribution. Submit an RFQ for current availability and pricing; stock is confirmed at quote time.

Is TNCJ-U.FLJ-PA(40) obsolete?

Yes, this adapter is listed as Obsolete. No official replacement is recorded, so any stock is surplus or broker inventory.

What is the difference between TNC and U.FL connectors?

TNC is a threaded, weatherproof RF connector (50 Ohm, up to 11 GHz in some variants) used on antennas and test equipment. U.FL (UMCC) is a miniature snap-on connector (50 Ohm, up to 6 GHz) used on Wi-Fi modules and embedded radios. This adapter lets you connect a TNC-cabled antenna to a U.FL-port module.