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  1. Unidentified MFG - 159-157-RA1 - Relay, Reed. SPDT Mercury Hg-Wetted, Form C,
    Unidentified MFG - 159-157-RA1 - Relay, Reed. SPDT Mercury Hg-Wetted, Form C,
    Special Price $5.98 Regular Price $7.50 As low as $3.98
    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.

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  2. UNIMAX - A365A-Y - WD21X10261 - A364090 - AP3994765  Push Button Switch, Interlock. Contacts: SPST Normally Open. 125VAC 15A NEW
    UNIMAX - A365A-Y - WD21X10261 - A364090 - AP3994765 Push Button Switch, Interlock. Contacts: SPST Normally Open. 125VAC 15A NEW
    Special Price $6.98 Regular Price $12.50 As low as $3.98
    IN STOCK - MORE THAN 1,000 READY TO SHIP!

    UNIMAX - A365A-Y - WD21X10261 - A364090 - AP3994765 Push Button Switch, Interlock.

    Heavy Duty Switch, All Purpose Micro Push Button.

    Contacts: SPST Normally Open.

    Contact Ratings: 125/250VAC 15Amp. 3/4 HP, 125VAC, 1 1/2 HP 250VAC:

    1.8" x 0.6" x 0.6" less Quick Connect terminals and push button - 1/4" Quick Connect Terminal at each end.

    Mech: Panel, 2 holes at 1" centers.

    Button Centered on Mounting Holes.

    Panel hole: 1.817" long x 0.625" wide x 0.652" high.

    Bulk Packaged

    Color: Brown or Black.

    Alternate Part Numbers WD21X557 as used in numerous appliances as interlock door switch. Commonly used on GE, Kenmore, Hotpoint, RCA and other appliances such as dishwashers and dryers as a door interlock switch.

    Replaces/Alternates/Substitutions: AP3994765, 1263984, AH1481922, EA1481922, PS1481922, WD21X0557, WD21X557, and B00MNMS81Q.

    Save Big $$ and repair those appliances yourself.

     

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  3. Matsushita - S-3 TV-3 ESB-702T-671 - Switch, pushbutton, latching. DPST-3A
    Matsushita - S-3 TV-3 ESB-702T-671 - Switch, pushbutton, latching. DPST-3A
    $6.95

    Matsushita - S-3 TV-3 ESB-702T-671 -Switch, pushbutton, latching.

    Contacts: DPST.

    Ratings: 3A 250VAC.

    Actuator: push-on, push-off.

    Connection: solder terminals.

    Mech: panel mount 2 threaded holes 0.80" spacing.

    Note: Snap switch.

    Use knob #4509, 8-431

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  4. LICON – 16-114 w/ Actuator 76-1290 - Roller Switch, Limit & Manual Reset, DPST, 10A, 125/250VAC.
    LICON – 16-114 w/ Actuator 76-1290 - Roller Switch, Limit & Manual Reset, DPST, 10A, 125/250VAC.
    Special Price $5.98 Regular Price $12.95
    LICON – 16-114 w/ Actuator 76-1290 - Roller Switch, Limit & Manual Reset, DPST, 10A, 125/250VAC. ITW Licon Series 16 Snap Action Switch utilizes the Butterfly action for high integrity switching in a compact size. The series 16 Snap Action switch utilizes the Butterfly™ action for high integrity switching in a compact size. Using the Form Z switch circuitry, this switch can be used to control two circuits. Sub-Miniature 10A Double-Break Snap Action switch with Manual Reset. Switch mechanism utilizing a single spring element to provide lost motion. Status: Discontinued Contacts: DPST-DB. Contact Material: Silver Thermoplastic Case and Cover. Contact Ratings: 10A AC/DC, 125/250VAC. Actuator: 76-1290 Two Positions, Switch Roller Lever Maintained. Connections: Four End Solder Terminals. Mechanical: Riveted on Small Plate. Environment: IP40 Meets MIL-PRF-8805/7 Operating Design Life: Electrical – 100,000 Cycles, Mechanical 10,000,000 Cycles Body: 0.25" Width x 1.16" Length x <1.0"H. Temperature: -54C to 125 C (-65F to 275F) Note: Has an unusual mechanical reset once roller/lever is pushed and snaps. UL Recognized and CSA Certified. Applications: Industrial, Military, Aerospace Used / Removed from Equipment. Learn More
  5. JBT - MR1-123 - 3-532 -  B123J2ZQ2 - Switch, Paddle. Miniature SPDT-5A.
    JBT - MR1-123 - 3-532 -  B123J2ZQ2 - Switch, Paddle. Miniature SPDT-5A.
    Special Price $6.98 Regular Price $10.50 As low as $4.49
    IN STOCK - MORE THAN 500 READY TO SHIP!

    JBT - MR1-123 - JBT Switch, Paddle Miniature, Electroswitch B123J2ZQ2.

    Status: Discontinued

    Contacts: SPDT.

    Switch Circuit: On - None - On

    Number of Positions: 2 Position

    Contact Ratings: 5A 125VAC.

    Voltage Rating (DC): 28 V

    Contact Material: Silver

    Actuator: Paddle. (White)

    Connection: Solder PC pins.

    Dimensions: Width: 0.47 in, Height: 1.34 in, Length: 0.75 in

    Mech: Panel Mount, two holes 0.93" spacing plus two 0.25" spacers, screws & nuts.

    Genuine  JBT - New Old Stock

    Note: Formerly Eaton (JBT) Now Electroswitch B123J2ZQ2

    Alternate: B123J2ZQ2-ND, Allied 70152395

    Made in USA

     

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  6. C & K Components - 3U0210L02 - Switch, BCD. Pushbutton 0-9, 1 Amp.
    C & K Components - 3U0210L02 - Switch, BCD. Pushbutton 0-9, 1 Amp.
    Special Price $5.98 Regular Price $7.50

    C & K Components - 3U0210L02 - Switch, BCD.

    Pushbutton 0-9,

    1 Amp,

    Two Tiny Pushbuttons: Up or Down

    Snap-in front mount.

    Gold-plated contacts & PC board.

    More info: http://www.ck-components.com/3/thumbwheel,10595,en.html

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  7. Unidentified MFG - TR-11236 - Transformers. 36V 250mA.
    Unidentified MFG - TR-11236 - Transformers. 36V 250mA.
    Special Price $6.98 Regular Price $8.50

    TR-11236 Transformer.

    Input X1 & X2 = 120 VAC

    Output Hi & H2 = 36VAC 250mA.

    Mount: Chassis, Open Frame, 4 wire.

    Marked: 64977-93-S

    Dimensions: 2-1/3" wide x 2" deep x 2" high with 2-7/8" mount centers.

    NSN 5950-00-804-4379

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  8. ITT Schadow - 3-621 - Switch, Push Button Latching. 6PDT + DPDT.
    ITT Schadow - 3-621 - Switch, Push Button Latching. 6PDT + DPDT.
    Special Price $4.98 Regular Price $9.95 As low as $3.98
    IN STOCK - MORE THAN 100 READY TO SHIP!

    ITT Schadow Switch, Pushbuttons.

    Two Individual Latching pushbuttons on a metal plate measuring Approximately 2" x 1-3/8".

    One switch is a two position 6PDT and the other is DPDT.

    PC Terminals on one side and solder terminals on the other.

    Selling cheap because the precious metal (Silver) is starting to tarnish.

    Cleanable Tarnish - New Old Stock.

    Proudly Made in USA

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  9. MICRO SWITCH - 37XL11XC-02 - Switch, with roller. Hall-effect.
    MICRO SWITCH - 37XL11XC-02 - Switch, with roller. Hall-effect.
    Special Price $4.98 Regular Price $8.95

    MICRO SWITCH - 37XL11XC-02 - Switch, with Roller.

    Hall-Effect 37XL11XC-02 mounted on right angle bracket.

    Three switch leads have been unsoldered.

    Used but Guaranteed.

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  10. Dialco/Dialight - 545-0209-116 - BCD THUMBWEHEEL SW 0-9
    Dialco/Dialight - 545-0209-116 - BCD THUMBWEHEEL SW 0-9
    Special Price $5.21 Regular Price $6.95
    0-9 THUMBWHEEL SWITCH 9-pin BCD BM1-2-4-8/N side-stackable 1.8"hi x 0.5" wide 28"-behind panel including 9 long pins NEW IND PKG'D Learn More
  11. CHALLENGER - 3401-HI - HOSPITAL CALL SWITCH IVORY
    CHALLENGER - 3401-HI - HOSPITAL CALL SWITCH IVORY
    $4.00
    IVORY HOSPITAL CALL TOGGLE SWITCH WITH PULL CORD 15A 120/277VAC Learn More
  12. BERGQUIST - P-1755-02 - Keypad 48 Switch's, Keypad Membrane
    BERGQUIST - P-1755-02 - Keypad 48 Switch's, Keypad Membrane
    Special Price $4.98 Regular Price $8.50 As low as $3.98

    BERGQUIST - P-1755-02 - KEYPADS 48 Switch's

    Membrane touch switches are sometimes referred to as membrane switches or touch switches. Generally, a membrane touch switch is a momentary electrical on/off switch for activating and de-activating a circuit. ... An overlay is applied to the first surface of the switch as the graphic interface.

    Very flexible 10-1/4" wide x 7-1/8" deep

    Connection: 24-Pin (F) connector 2-7/8" long x 1/8" deep with 2.2mm lead spacing.

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  13. ALCO ELECTRIC - DRM16CRA - Switch, Rotary DIP with  Mini Shaft. 16 Position.
    ALCO ELECTRIC - DRM16CRA - Switch, Rotary DIP with Mini Shaft. 16 Position.
    Special Price $4.98 Regular Price $5.95 As low as $2.98

    ALCO ELECTRIC - DRM16CRA - Switch, Rotary with Mini Shaft.

    Status: Discontinued

    Hexadecimal Complement. 16 Position BC Comp - 0-9 + A-F.

    Side Actuated, Right Angle.

    Actuator: Raised.

    Contact Finish: Gold

    Mount: PCB, Through Hole.

    Ratings: 0.4VA at 20VAC/DC.

    Mechanicl/Electrical Life: 20,000 Steps

    Alternate: 1825008-7-ND

    New Old Stock

     

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  14. Universal  - HDPS5 -  Deluxe Pin Switch, Normally Closed (NC).  1.5", 1/4-20 Threaded Body, 0.25" QC, Adjustable, Package of 4.
    Universal - HDPS5 - Deluxe Pin Switch, Normally Closed (NC). 1.5", 1/4-20 Threaded Body, 0.25" QC, Adjustable, Package of 4.
    Special Price $6.98 Regular Price $8.50 As low as $5.98
    IN STOCK - MORE THAN 100 READY TO SHIP!

    Universal - Adjustable Deluxe Pin Switch, Normally Closed (NC). 

    Code Alarm Pin Switch

    • Applicable models for cars, trucks, RVs, off-road vehicles adapted models for motor vehicle hood
    • Hood trunk door pin uses: Car hood intrusion switch / auto switch trunk notice
    • Door plunger switch alarm auto hood pin with adjustbale screw length,easy operation
    • Durable material: Made of environmental protection iron, plastic materials,can use long time with great touch
    • Plastic top design,designed for car domelight/ hood intrusion switch/ auto switch trunk notice

    Dimensions: Length 70MM or 2.75", Screw Length: 35MM or 1.37"

     1/4-20 Threaded Body.

    Rating: 20A, 12VDC

    Connection: 0.25" Quick Connect on the bottom.

    The spring slides smoothly and has a long service life.

    Operation: When depressed, it breaks open the circuit.

    Comes with 2 nuts and lock nut for adjusting the depth.

    Actuator: Nylon.

    Switch Housing Material: Anodized Steel

    Applications: Alarm Systems, Home Security, Dome Light, Door Jam, Hood Intrusion, Trunk, Bonnet Notice.

    Alternates: HDPS5, AMZegal49042, A0480-2, ASCZOV

    Package of 4.

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  15. ALLEN BRADLEY - AB - 871C-N3 - AB - 871C-N3-SER A - Switch, Proximity. 18mm Hex Nuts. Package of 2.
    ALLEN BRADLEY - AB - 871C-N3 - AB - 871C-N3-SER A - Switch, Proximity. 18mm Hex Nuts. Package of 2.
    Special Price $4.98 Regular Price $7.50 As low as $3.98

    ALLEN BRADLEY - AB - 871C-N3 - AB - 871C-N3 SER A- Switch, Proximity Nickel Plated Brass Nuts. Package of 2

    Genuine Rockwell Automation Parts

    Large Hex Nuts 18mm

    Nickel Plated Brass Mounting Nut

    UPC: 662073675471

    Proudly Made in USA

    Package of 2

    Alternates: GXM3MD2439, 871T-N4, ST02, OP-3052

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