4 and half for sale, brand-new and used.

A00485N is a signal adapter between USB and RS485/RS422. Its USB is compatible with USB 2.0. Its RS485/RS422 transceiver is a half-duplex transceiver with 1/8 unit-load receiver input impedance, which allows up to 256 transceivers on one bus.

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Atoms Industries

GE SELENIUM HALF-WAVE RECTIFIER STACK #GE4JA211CB2AC1 WITH 8 DIODES, NEW. This stack is wired as a half-wave rectifier. I found this high-quality American-made item about 30 years ago while cleaning out a laboratory.

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You are bidding on Schottky Rectifier Description: The 125NQ015 high current Schottky rectifier module has been optimized for ultra low forward voltage drop specifically for the OR-ing of parallel power supplies. The proprietary barrier technology allows for reliable operation up to 100 °C junction temperature. Typical applications are in parallel switching power supplies, converters, reverse b

You are bidding on Schottky Rectifier Description/Features: The 182NQ030 high current Schottky rectifier module has been optimized for very low forward voltage drop, with moderate leakage. The proprietary barrier technology allows for reliable operation up to 150° C junction temperature. Typical applications are in switching power supplies, converters, free-wheeling diodes, and reverse battery

Servo Amp Advanced Motion Control Servo Amplifier Drive BE25A20H Drives brushless motors. Great for automation projects. Multiples of this unit available contact me if your interested.

Model 485LPCOR Port-Powered RS-485 Converter The 485LPCOR is a port-powered two-channel RS-232 to RS-485 converter. It converts the TD and RD RS-232 lines to balanced half-duplex RS-485 signals. The unit is powered from the RS-232 data and handshake lines whether the lines are high or low.

Vintage Weston 643 Panel Round Voltmeter, tests good 0 - 1000V, half wave peak reading (F.S. 318V) Dimensions: 4 1/2" overall diameter (mounts into 3 3/4" panel hole) Ships within the USA.

915MHz Telemetry Air Module for 2-Way Half Duplex Telemetry System 3DR Radio System CompatibleDescription: 915MHz Telemetry Air Module for 2-Way Half Duplex Telemetry System 3DR Radio System Compatible The Radio "Air" module is part of the new telemetry system. It would work in conjunction with the "Ground" module offering a 2-way half duplex wireless communication system.A  It base on 3DR Radio system and 100% compatible.

FEATURES For use on ceramic tile and carpet floors

EDSAL 270-121 Half-Case of 6 Shelf storage drawer boxes. New in box, comes as a half case of 6. drawers measure 12' (front outside edge to back outside edge), 5" wide and 4" tall.

IFS International Fiber Systems Video Intercom Remote VIC5211R We think these are new items but cannot validate that. 14 day warranty. Manufacturer Description:

The IFS VIC5211R is fully compatibile with Aiphone LEM, LEF, and NEM equipment. The module supports the simultaneous transmission of fixed video, half-duplex audio and bi-directional contact closure over one multimode optical fiber. Plug-and-play design ensures ease of installation.

The Lotoons Store 3M 6200 Half Mask for Use With 6000 Series Cartridges Face Piece

You are bidding on one Lot of 4 3M EN140 Half Facepiece Reusable Respirations with Filters. Industrial, manufacturing, chemical processes, painting, respiratory protection. Filter color: olive.