Specialized

159-157-RA1 Relay, Reed. Mercury Hg-Wetted, Form C.

The mercury-wetted contact relay represents one of the more sophisticated types of relays made today. The early pioneer work in mercury-wetted contact switching dates back to the 1950’s, as telephone laboratory scientists sought out the “perfect contact”.

Reed relays use an external electromagnet to control the reed switch. The contacts are of magnetic material and the electromagnet acts directly on them without requiring an armature to move them. Sealed in a glass tube, the contacts are protected from corrosion. Mercury-wetted relays are fast in operation and have relatively good load carrying capacity and long life. The mercury films are reestablished at each contact closure and contact erosion is eliminated. The mercury films are stretchable, there is no contact bounce and because it is a mercury contact, the contact resistance is very low and idea for low level switching applications.

A mercury-wetted reed relay is a form of reed relay that employs a mercury switch, in which the contacts are wetted with mercury. Mercury reduces the contact resistance and mitigates the associated voltage drop. For high-speed applications, the mercury eliminates contact bounce, and provides virtually instantaneous circuit closure. Mercury wetted relays are position-sensitive and must be mounted according to the manufacturer's specifications. Because of the toxicity and expense of liquid mercury, these relays have increasingly fallen into disuse.

The high speed of switching action of the mercury-wetted relay is a notable advantage. The mercury globules on each contact coalesce, and the current rise time through the contacts is generally considered to be a few picoseconds. However, in a practical circuit it may be limited by the inductance of the contacts and wiring. It was quite common, before restrictions on the use of mercury, to use a mercury-wetted relay in the laboratory as a convenient means of generating fast rise time pulses, however although the rise time may be picoseconds, the exact timing of the event is, like all other types of relay, subject to considerable jitter, possibly milliseconds, due to mechanical imperfections. The only major weakness of a mercury wetted contact relay is the necessity to mount the relay within 30° of a vertical position, due to its position sensitivity.

Type: Form C

Contacts: SPDT.

Switched Load Rating: 2 Amp, 500 Volts Max, 100 VA Maximum

Carry Load Rating: 5 Amp

Contact Resistance: 14 Milliohms Typical, 20 Milliohms Max.

Packaging: Under High Pressure in Glass Capsules.

Approximate Dimensions 5.8mm D x 38mm Long. (0.225" X 1.5")

Life Expectancy: 1 billion operations minimum at rated load.

Note: Mercury Hg-Wetted.

Danger - High Pressure Glass Capsule- Handle with Care - User assumes responsibility and competency to handle this item.

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IC. Cascadable GaAs MMIC amplifier, DC-3 GHZ. HBT technology, cascadable 50 Ohm gain block, 21dB gain +23dBm TOIP. Package: 4 Pin SMD. New. Learn More

HUBBELL - BR62R/11 - Balum - Female BNC to RJ11 Modular Phone Jack. 

Baluns are a specific variety of transformers used to convert unbalanced signals into balanced ones.

BNC Female to 4 Pin Female Modular Phone Jack.

Note: Straight to 4 Conductor Telephone Jack.

For Coax Cable.

New Old Stock

Applications: Designed for network impedance matching. Use your existing telephone cable to transmit video signals up to 660 ft. Save time and money utilizing unused cable already installed in your home or place of business.

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18" Ellipse Scan Mirrors, Made for IBM, Very Fragile - Partial Transmission

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SPH388 - SPH386 - IEC 320 C14 Male to IEC 320 C13 Female Power Jumper Extension Cable Cord 9 Ft.

This high quality UL Rated Cable that plugs between a PDU and Computer is the backbone of any Data Center or Network.

IEC320 C14 Male Plug to IEC320 C13 Female Receptacle Power Cord

10 Amp Black 9Ft

IEC Computer monitor extension cord 10Amp, shielded 18-3C (18AWG 3 Conductor).

Jacket: SJT CSA.

One Molded Female to one Molded Male.

Length: 9 Foot Black.

Applications: Monitors, Computers, Commercial/Industrial Test Equipment & Computers.

Note: Will mate our female connector P/N 43R03 SKU 4821, sold separately.

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ALNiCo - NEO25 - Magnets, Neodymium, - Super Strong Commercial Rare Earth Magnet.

Rare earth magnets are very strong magnets made from alloys of rare earth elements. They are the strongest among the permanent magnets made. These magnets can be manufactured through sintering, compression bonding, injection molding, and extrusion. Neodymium magnets have the highest energy product of any material, and this type of magnet is known for its ability to be created in a wide range of available shapes, sizes, and grades. 

South Pole Inside Curve. North Pole - Flat Surface.

Dimensions: 7/18" x 1/3".

Applications: Wind Turbines, Linear actuators, Microphone assemblies, Servo motors, Tape recorders, Alternators, Pacemakers, DC motors, Flow meters, Holding Assemblies, Lifting Magnets, Magnetic Fanners.

Extreme caution must be taken when working with rare earth magnets. Magnets larger than a few centimeters are strong enough to cause injuries to body parts pinched between two magnets, or a magnet and a metal surface, even causing broken bones. Magnets allowed to get too close to each other can strike one another with force to chip and shatter the brittle material, and the flying chips can cause injuries.

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Clear Lucite - Light Diffuser.

Overall Dimensions 1.4"OD x 1.94"High.

Coarse Threaded Outer Diameter measures 1.250" Inner  Thread Diameter 1.17"

Threaded at bottom with large hole inside 1.5" Deep Rounded by 0.47" I.D.

Made in Taiwan

Package of 2

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Computer Related. USB-A to USB-B Cable.

• Burst data transfer rates up to 480 Mbps (system dependent)
• Compliance with the USB 2.0 serial bus interface standard
• Backward compatibility with all USB 1.1 interfaces

Standard USB Male to Male Cable.

Length: 6 Foot.

Color: Beige.

Temperature: 60 C

High Speed Transfer:  Up to 480 Mbps transfers data speed for USB 2.0 devices

Backwards compliant with USB 1.1 (12 Mbps) and low-speed USB 1.0 (1.5 Mbps).

Cable Specifications: 2835 E87647-DG AWM 60 Deg C 30V VW1.

UL Approved

New Old Stock

Applications: This cable is designed to interconnect devices with USB interfaces. Ideal for connecting an audio interface, Printer, Scanner, Server, Fax, camera, piano, USB microphone or instrument, and many other peripherals to a PC. 

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AMPHENOL - RJMG-B312-71-01 - RJ45 8-Cond Printed Circuit Connectors / Telephone Jack

Status: Discontinued

Modular Jacks GRN/YLW LED, 4X75 OHM 

Manufacturer: Amphenol           

Product Category: Modular Connectors / Ethernet Connectors   

Product: Connectors      

USOC Codes: RJ45           

Number of Ports: 1 Port

Shielding: Shielded         

Current Rating: 1.5 A     

Voltage Rating: 125 V    

Series: RJMG     

Contact Plating: Tin         

Gender: Jack (Female)  

Housing Material: Thermoplastic (TP)     

Product Type: Modular Connectors / Ethernet Connectors           

Tradename: RJ Mag

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TV IF-STEREO shielded module converts RF to baseline audio - includes TA7607 and TA7176 3.25" x 2.4" with 12-leads x 1"thick

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Telephone accessories. Phone line distribution box, 50-Position female centronics connectors to (12) 4-pin phone jacks all in a 6.5" long plastic case. Learn More

NIKKO ELECTRIC - NW-1-S Circuit Breaker.

Status: Discontinued

0.8 Amp, 125V 60Hz.

Pushbutton Reset.

Mount: Panel Mount with Removable Bracket.

Dimensions: 2" long x 5/8" wide x 1-1/8" deep.

Vintage Genuine Nikko Electric - New Old Stock - Rare

Made in Japan

Applications: Consumer Appliances, Amplifiers, Audio/Visual 

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Curved First Surface Mirror. Thick slice of GLASS 0.66" thick at the ends, about 0.5" in the middle. 1" X 7" long. Learn More

Data Cartridge. 600 Feet. Stock No C1886 (DC600A Compatible). Learn More

Floppy diskettes 5.25". Double sided/High density. Box of 10 pieces. Learn More

Lens aperture. NIB.

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Telephone adaptor. Learn More

Magnets, business card size. Self-adhesive. Note: New, older stock. Package of 25. Learn More

Delay line. Package: 4 Dip. Learn More

TYPE B SERIES RJ11 TO BNC MALE BALUN USED TO CONVERT 93 OHM TO UNSHILDED TWISTED PAIR TRANSPARENT AT 2.5Mbps UP TO 330 FT. WITH LOW LOSS PULSE TRANSFORMER AND DC ISOLATION. COMPATIBLE WITH IBM 3270 SERIES ..AT&T...ITT...LEE DATA...MEMOREX..TELEX.. AND TYPE A DEVICES CABLE REQUIRMENTS IS 90-110 OHM Learn More

Neodymium magnets. Two per assembly, attached to a steel plate 1/2 moon shape. Magnet dimensions: 7/8" at widest area x 13/16" x 5/16" high. Overall with plate 2-1/2' long x 1-1/8" wide x 11/16" tall. Pre-drilled mount centers: 1-7/8". Learn More

Telephone accessory. Male 5 pin connector. Dimensions: 1.608" long x 0.748" wide x 0.512" high, plus contacts. Learn More

National Semiconductor - LM2577S-12 Voltage regulator.

Max voltage: 12V.

Max current: 3Amp.

Simple switcher step-up.

Package: TO-263-5 SMD.

Note: Double marked P+.

DC/DC Converter.

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IC. DC/DC inverting switching regulator. Number of outputs: 1. Primary input voltage: 3V to 16V. Output voltage preset at �5V. Output current: 250mA. Dissipation: 727mW. Operating temperature range:0 to 70 Deg C. Package: 8 SOIC SMD. Rohs compliant. Learn More