Specialized
- Unidentified MFG - 159-157-RA1 - Relay, Reed. SPDT Mercury Hg-Wetted, Form C,IN STOCK - MORE THAN 1,000 READY TO SHIP!
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.
Learn More - TRANSITION ENGINEERING - CX-1134 - CX Series RJ11 to BNC balun Adapter.IN STOCK - MORE THAN 100 READY TO SHIP!
TRANSITION ENGINEERING - CX-1134 Connector, BNC.
Type RFI FIlter
A balun /ˈbælʌn/ (portmanteau of "balanced to unbalanced") is an electrical device that converts between a balanced signal and an unbalanced signal.
Premium extended CX-1134 RJ11 to BNC connector balun.
Compatible with AT&T, ITT, LEE DATA, MEMOREX and TELEX type A devices with data rate of 2.35Mbps.
Transmission distance is 50 feet min and 2500 feet maximum.
Unit has three winding transformer/choke configuration to filter RFI.
Coax Cable Requirement is 90-110 Ohm.
Made in USA
See SKU 4659 for RJ11 Cord.
Alternate: 555329-1
Learn More - TELEDYNE SYSTEMS - 17863-8913784-301 (On Conn) - Military Circuit Board Assembly with STC 1553.Special Price $1,898.00 Regular Price $2,500.00
TELEDYNE SYSTEMS - 17863-8913784-301 - Military Circuit Board Assembly.
17863-8913784-1 Has about 86 Flatpack ICs and 15 TO-5 relays and lots a Aurium. 3784-301(Nr on Connector) has 93 flatpack ICs an STC 1553 Dual Transceiver module.
2 Connecctors on boards and 5 more attached by flat cable. Varnished.
In Fixture 10.5" x 10.5" x 1.6", about 4 pounds
New Old Stock
Learn More - TELLABS - 81.2301 Rev A - Tellabs Cablespan 2300 Shelf, Multi-Service Access Platform, Channel Bank Assembly with ConnectorsSpecial Price $348.98 Regular Price $500.00
TELLABS - 81.2301 Rev A - Cablespan 2300 Shelf, Multi-Service Access Platform, Channel Bank Aassembly with Connectors.
Cablespan 2300 Universal Telephony Distribution System, designed to enable cable operators to increase the potential of existing hybrid fibre-coax networks by offering telephony, telecommuting and video conferencing; Cablespan is provided by Tellabs through a joint venture with Advanced Fibre Communications Inc, doing digital loop carrier technology in Petaluma, California.
Rack Mount Cablespan 2300 System Universal Telephone carrier.
26 Card Slots with Back Plane.
Material: Cold rolled steel - Zinc plated per ASTM-B633 Type II (Gold) SC2
New in Box.
Note: Retail was $1228.00
Learn More - STANFORD MICRODEVICES - SNA386 - IC. Cascadable GaAs MMIC amplifier, DC-3 GHZ.$4.95IC. 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
- SIERRA SCIENTIFIC - MS-4032 - Monochrome CCD High Resolution Video Camera$197.50Take standard "C" mount lenses - 1.85" mounting hole - 2.1 x 2.5 x 6.8"L Monochrome 12-pin female connector for Remote Control - BNC Video Out - Requires 12VDC 400mA P/S CCD HIGH RESOLUTION CAMERAS Learn More
- Sarkes Tarzian - 2KV26-5A5-ZS - Diode, Selenium Rectifier, Electrical Surge Arrester, Voltage Snubber.
Sarkes Tarzian - 2KV26-5A5-ZS Diode, Selenium Rectifier, Surge Arrester, Voltage Snubber.
A Selenium Rectifier is a type of metal rectifier, invented in 1933. They were originally used to replace vacuum tube rectifiers in power supplies for electronic equipment, and in high current battery charger applications.
Type: Selenium Rectifier. 2-lead 10-wafer. Centre-Kooled - Blue.
Description: Rectifier, 10 Plates, 1" X 1"
Mounting Configuration: 0.164" Diameter hole
Nominal Dimensions: Depth: 1.0”, Overall Length: 2.062”, Overall Width: 1.50”
Breakdown Voltage: 350.0 Volts Nominal
Terminal Type: Solder Lug
Usage: Indoor/Outdoor
Vintage Genuine Sarkes Tarzian Selenium Rectifier - New Old Stock - Never Used
NSN 5920-00-892-8826 Replaces - NSN 6130-00-225-9017
Alternates: General Electric Co: 6RS21SA5D5, Raytheon Company 710120-032, Danfoss Fluid Power Inc. 211-36710, ST-Semicon Inc: 5KV26.5A5-ZS, DLA Land and Maritime: DMS 82090B.
Made in USA
Learn More - RapidConn - RC-205-070A - USB Extension cable, USB-A Male to Female.IN STOCK - MORE THAN 1,000 READY TO SHIP!
RapidConn - RC-205-070A - USB Extension cable.
USB-A with mate at opposite end.
Male to female.
Length: 11".
- Picker/Philips X-RAY - 350953 - Jumper Cable, 74868 - RG-11/U Coax Cable, UG-573A/U RF N Connector Male to Male. 24 inch length.Special Price $12.98 Regular Price $26.95IN STOCK - MORE THAN 100 READY TO SHIP!
Picker/Philips X-RAY - 350953 - Jumper Cable, 74868 - RG-11/U Coax Cable, UG-573A/U RF N Connector Male to Male. 24 inch length.
Highest Quality Heavy Duty Medical Grade Coax Cable, Used/Removed from Equipment.
Learn More - PERKIN ELMER - HGA - Furnace Head for Heated Graphite Atomizer (HGA), NewSpecial Price $1,798.98 Regular Price $2,500.00PERKIN ELMER - HGA - Furnace Head for Heated Graphite Atomizer (HGA) Heated Graphite Atomizer (HGA) FURNACE HEAD, an accessory for Perkin-Elmer Atomic Absorption Spectrophotometers (AA). Basically, sample is placed in a graphite tube and a few hundred amps heats the tube white hot to break down the sample to atoms. Light from the AA passes through the tube and sample and the atoms are identified and measured. The tubing fittings are for cooling water and argon gas to prevent the tube from burning. Description: Chrome plated non-ferrous tool metal, brass? - Fit a One Inch Collette, 1/4-20 additional set up points - Fluid injection points - Round set up head with off-center holes, about 3/4" - Opposite round heads are Spring loaded towards each other with guide pins w/ nylon bushings - comes with roll of flex-tubing (maybe 25') for the fluid point - Adjustable handle points perpendicular to each other. Dimensions: About 5" x 5" x 4.5" high. Two Stainless donuts 2.5"OD, 0.87"W with Inside Diameter of 0.778". Black tube 1.1"OD x 1.25" Long with bronze or brass inserts, moveable with knob. Nine SS ports 3mm ID. Absolutely Beautiful piece of instrumentation & machining. Weighs Approximately 3.35 pounds. Factory New Learn More
- NORTH HILLS - NH 12477 - Connector, Coax. Wang to Dual Coax Adapter.$7.50
NORTH HILLS - NH 12477 - Connector, Coax.
Wang to Dual Coax; One TNC and one BNC to Twisted Pair RJ12 Telephone Wire Connector Module.
This unit used only 4 pins of the RJ12 connector.
Learn More - Motorola - MVME1604-023 - 6U VME PowerPC604 Single board Computer$878.00MVME1604 double-high VMEmodule Single Board Computer - New in box.Going price appears to be $1800.00 Full spex & instructions may be found here: http://www.innovative-research.com/manuals/MVME1603-1604.pdf Learn More
- Motorola - 51-P27365H001 - IC, military. LSI CorrelatorSpecial Price $149.95 Regular Price $199.00IC, military. LSI Correlator. Marked 7365H001. Case: Quad 68-SMD, gold leads. Each individually packaged in an anti-static holder. Learn More
- Laird Thermal System - MARLOW INDUSTRIES - CP2-31-10-L-1 - Peltier Junction 2.5V 3Amp ThermoElectric Cooling.Special Price $12.98 Regular Price $22.50Out of stock
Laird Thermal System - MARLOW INDUSTRIES - CP2-31-10-L-1.
Ceramic Plate Series Thermoelectric Cooler - The CP2-127-10-L1 is a high-performance and highly reliable standard Thermoelectric Cooler. Assembled with Bismuth Telluride semiconductor material and thermally conductive Aluminum Oxide ceramics.
Thermal electric cooler. Peltier junction's 3Amp 2.5V.
Dimensions: Approximately - 30mm sq x 5.3mm tall, (29.7mm x 29.7mm x 4.7mm).
MFG Part Number 40655-202.
New Old Stock.
Applications- Thermoelectric Coolers for Reagent Storage
- Thermoelectric Coolers for Handheld Cosmetic Lasers
- Cooling for Centrifuges
- Heads-Up Displays, Imaging Sensors
- Peltier Cooling for Machine Vision
- MICROMETRICS - 1N79 Microwave Diode, High Frequency to 3,000 MHz, Bird P/N 2500-180.
MICROMETRICS - 1N79 Microwave Diode, High Frequency.
A two electrode semiconductor device having an asymmetrical voltage - current characteristic.
Microwave S Band. f(test) test frequency = 3.0GHz (3,000 MHz)
Meter Rectifier 100V, 10A
Semiconductor Material: Silicon Crystal Diode
Enclosure: Glass and Metal
Mounting Method: Press-Fit
Features: Hermetically Sealed DO-22 Gold Stud
Terminal Type: 1 Ferrule and 1 Flange.
Genuine Micrometrics - New Old Stock - Rare
Bird P/N: 2500-180.
NSN: 5961-00617-4983
Learn More - MICROMETRICS - Bird P/N: 2500-180 - Diodes, Microwave S-band. Meter Rectifier, 1N79Out of stock
MICROMETRICS - Bird P/N 2500-180 Microwave Diode, High Frequency, 1N79.
A two electrode semiconductor device having an asymmetrical voltage - current characteristic.
Microwave S Band. f(test) test frequency = 3.0GHz (3,000 MHz)
Meter Rectifier 100V, 10A
Semiconductor Material: Silicon Crystal Diode
Enclosure: Glass and Metal
Mounting Method: Press-Fit
Features: Hermetically Sealed DO-22 Gold Stud
Terminal Type: 1 Ferrule and 1 Flange.
Genuine Micrometrics - New Old Stock - Rare
Bird P/N: 2500-180.
NSN: 5961-00617-4983
- LOGIC - LRF08GC 1225 - Register File (Static RAM) - 5 Port Reg FileSpecial Price $419.99 Regular Price $535.22Register File (Static RAM) - 5 Port Reg File. Number of Words = 8, Bits Per Word = 8, t(acc) Max. (S) = 35n, tW Min (S) = 45n, P(D) Max.(W) Power Dissipation = 60m, Nom. Supp (V) = 5.0,Package = 64-PGA New ceramic gold Learn More
- LOCKHEED - 6827820-1 - Board. Military assembly.$185.00Board. Military assembly with Burndy connector M55302/7-03, NSN 5935-00-530-4650. Learn More
- LOCKHEED - 6126878-2 - Board. Military assembly.Special Price $189.95 Regular Price $250.00Board. Military assembly with Burndy connector M55302/7-03, NSN 5935-00-530-4650. Learn More
- KRONE - T568A/B RJ-45 - 6645 1 800-01 - Connectors. RJ-45 Jack, Hi Band.IN STOCK - MORE THAN 500 READY TO SHIP!
KRONE - T568A/B RJ-45 - 6645 1 800-01 - Connectors.
PRODUCT HIGHLIGHTS
- Used with patch panels, surface mount boxes, and wall plates
- Color coded krone type T568A / T568B wiring standards
- Cat6 mark labeled on keystone for easy identification
- Conforms to EIA/TIA Cat6 standards
- UL listed
RJ-45 Jack, Hi Band.
Cat 5&6 6645180001.
Housing: ABS+PC
RJ45 Jack Contact: Gold Plating on Plug Contact Area
Case: 8-Pin, White.
Conforms to EIA/TIA Cat6 standards
Approvals: UL Listed
Factory New Old Stock - Sealed Krone Packaging from Factory
Learn More - TDK - Lambda - LAS1905 - Voltage Regulator, Linear. 5V 5Amp. To-3 SteelREADY TO SHIP - ONLY 54 LEFT IN STOCK!
TDK - Lambda - LAS1905 - Voltage Regulator, Linear.
Polarity: Positive.
Adjustment Range: 5V.
Maximum Current: 5Amp.
Package: TO-3 Steel.
New. Monolithic.
Pinball OM0148A
Alternate: XO-328
Additional Data: http://www.datasheetspdf.com/pdf/905140/Semtech/LAS1905/1
Learn More - KEITHLEY - 35080 - KVP Divider/Mammo/Diagnostic.$400.00KVP Divider/Mammo/Diagnostic. (Noninvasive). Desk top style. Dimensions: 3.5 x 8.25 x 2.375". Note: Missing 3 rubber feet. Made in the USA. Condition unknown/Sold as is. Learn More
- HUBBELL - BR62R/11 - Balum - BNC Female Coaxial to Telephone RJ11 Female Modular Phone Adapter.
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.
Learn More - HAROWE SYSTEMS - 10001-2500701 - Servo mechanism, azimuth type 4025-01.Special Price $249.99 Regular Price $299.00Servo mechanism, azimuth type 4025-01. Dimensions: 2.75" D x 3' high. Silver can with cable and multipin military male connector. New. Learn More