Home / FBelec Products / Switch & Indicator / Detector switch
Picture Model No. Insulation Resistance Rating Description Datasheet Order
With large spot supply, reset the four pin patch detection switch preferentially

FBDS-01

100VDC 100mΩ min. 50mA DC12V

With large spot supply, reset the four pin patch detection switch preferentially

Four pin limit water replenishment instrument patch travel switch reset detection switch can be customized

FBDS-02

100VDC 100mΩ min. 100mA DC12V

Four pin limit water replenishment instrument patch travel switch reset detection switch can be customized

Environmental protection high temperature resistant patch detection switch

FBDS-03

100VDC 100mΩ min. 100mA DC12V

Environmental protection high temperature resistant patch detection switch

spst no normally open smd 4 pin detector switch FBELEC brand

FBDS-04

100VDC 100mΩ min. 100mA DC12V

spst no normally open smd 4 pin detector switch FBELEC brand

waterproof miniature mini mouse micro detector switch smd smt pcb mount push button switch normally open

FBDS-05

100VDC 100mΩ min. 100mA DC12V

waterproof miniature mini mouse micro detector switch smd smt pcb mount push button switch normally open

Rectangular Micro SMT Switch Smt Detector Switch For Electronics Product

FBDS-06

100VDC 100mΩ min. 100mA DC12V

Rectangular Micro SMT Switch Smt Detector Switch For Electronics Product

4-pin U-pin detection switch high temperature resistant patch travel switch reset switch

FBDS-07

100VDC 100mΩ min. 100mA DC12V

4-pin U-pin detection switch high temperature resistant patch travel switch reset switch

Detector test switch 4 pin micro switch reset 12v limit switch

FBDS-08

100VDC 100mΩ min. 100mA DC12V

Detector test switch 4 pin micro switch reset 12v limit switch

High quality Right angle 6pin SMT SMD detector switch side actuated normal open

FBDS-09

100VDC 100mΩ min. 100mA DC12V

High quality Right angle 6pin SMT SMD detector switch side actuated normal open

mini micro switch limit with 3 terminals long handle push button switch detector switch

FBDS-10

100VDC 100mΩ min. 100mA DC12V

mini micro switch limit with 3 terminals long handle push button switch detector switch

Detection Switch SMD 4 Pin smt micro detective switch good resilience detector switch

FBDS-11

100VDC 100mΩ min. 100mA DC12V

Detection Switch SMD 4 Pin smt micro detective switch good resilience detector switch

spdt smt 4 pin side push momentary detector micro switch FBELEC brand

FBDS-12

100VDC 100mΩ min. 100mA DC12V

spdt smt 4 pin side push momentary detector micro switch FBELEC brand

Wholesale china pcb mounting smt smd detector micro detector switch

FBDS-13

100VDC 100mΩ min. 100mA DC12V

Wholesale china pcb mounting smt smd detector micro detector switch

SMT push restoration Switch micro motion detector switch sensitive push tact switch

FBDS-14

100VDC 100mΩ min. 100mA DC12V

SMT push restoration Switch micro motion detector switch sensitive push tact switch

micro detector limit switch bent pins 3 pins reset subminiature side push button switch

FBDS-15

100VDC 100mΩ min. 100mA DC12V

micro detector limit switch bent pins 3 pins reset subminiature side push button switch

right angle spst normally open smd 4 pin detector switch

FBDS-16

100VDC 100mΩ min. 100mA DC12V

right angle spst normally open smd 4 pin detector switch

Micro limit switch manufacturing type detector micro switch

FBDS-17

100VDC 100mΩ min. 100mA DC12V

Micro limit switch manufacturing type detector micro switch

push switch high temperature resistant environmental protection detection switch

FBDS-18

100VDC 100mΩ min. 100mA DC12V

push switch high temperature resistant environmental protection detection switch

Micro switch series selectable types SMD/SMT detect slide switch apply for car

FBDS-19

100VDC 100mΩ min. 100mA DC12V

Micro switch series selectable types SMD/SMT detect slide switch apply for car

4 pin pcb mounting micro switch smt 90 Degree Side push smd detect

FBDS-20

100VDC 100mΩ min. 100mA DC12V

4 pin pcb mounting micro switch smt 90 Degree Side push smd detect

Micro-sized fingertip monkey toy four-foot plug-in detection switch

FBDS-21

100VDC 100mΩ min. 100mA DC12V

Micro-sized fingertip monkey toy four-foot plug-in detection switch

limit switch game button keyboard flash reset micro detection button switch

FBDS-22

100VDC 100mΩ min. 100mA DC12V

limit switch game button keyboard flash reset micro detection button switch

12V DC Mini Detecting Switch Push tact switch 4pin micro Reset switch SMD

FBDS-23

100VDC 100mΩ min. 100mA DC12V

12V DC Mini Detecting Switch Push tact switch 4pin micro Reset switch SMD

new hot style tactile smd detector switch for ETC

FBDS-24

100VDC 100mΩ min. 100mA DC12V

new hot style tactile smd detector switch for ETC

Detection Switch SMD 4 Pin smt micro detective switch good resilience detector switch

FBDS-25

100VDC 100mΩ min. 100mA DC12V

Detection Switch SMD 4 Pin smt micro detective switch good resilience detector switch

Press the 3-pin on the side of the detection switch, insert the mini-type side of the tact switch

FBDS-26

100VDC 100mΩ min. 100mA DC12V

Press the 3-pin on the side of the detection switch, insert the mini-type side of the tact switch

detective tact switch restoration type micro mini SMD SMT switches

FBDS-27

100VDC 100mΩ min. 100mA DC12V

detective tact switch restoration type micro mini SMD SMT switches

Small triangle gusset miniature detection button turtle-shaped limit switch HD-25 movement reset micro movemen

FBDS-28

100VDC 100mΩ min. 100mA DC12V

Small triangle gusset miniature detection button turtle-shaped limit switch HD-25 movement reset micro movemen

The 4P foot patch swings right and left to detect switch camera switch

FBDS-29

100VDC 100mΩ min. 100mA DC12V

The 4P foot patch swings right and left to detect switch camera switch


Detector switch

  • Purpose and working principle of detection switch:


    The detection switch is a switch connected with other circuit elements to detect the parameters (such as current, voltage, etc.) of the element or circuit. The detection switch has induction function. It is often a variety of induction switches or proximity switches, and needs external power supply to work.


    The detection switch has various output methods according to its purpose:


    1. Contact output type detect switches

    Taking the contact of micro switch, limit switch and relay as the output switching element, and connecting with electromagnetic switch, small motor and electromagnetic device as the main purpose, it can carry out switching control of several amperes of current. When connecting with electronic control equipment, pay attention to vibration time and minimum load current.


    2. Photoelectric coupling output type

    The electrical insulation of the detection circuit is the same as that of the contact output type. Switch capable of controlling 10 ~ 50mA current.


    3. DC 3-wire type

    a. Voltage output type

    When detecting, output voltage signal to load. The voltage output type is mainly manufactured for the purpose of connecting electronic control equipment composed of transistors or ICs such as electronic counters, contactless relays, etc.

    b. Current output type

    It can also be called open collector output type. When the output transistor operates, there are NPN type (current absorption) of suction current and PNP type (current source) of discharge current. If a small capacity power transistor is used in the output transistor, it can switch the current of 50 ~ 200mA, and directly drive the loads such as electromagnetic relay, electromagnetic valve, DC solenoid and display lamp.


    4. DC 2-wire type

    The proximity switch of this mode has two wires. Therefore, if attention is paid to the polarity during use, not only the use method can be the same as that of the mechanical limit switch, but also the wiring is simple, but the following conditions should be paid attention to.

    (1) Even if the switch is closed, it is necessary to supply current to the detection circuit of the proximity switch. For this reason, a small amount of current flows in the load. This current is called leakage current. In case of leakage current, "leakage current" is generated at both ends of the load × Load is also the cause of initial failure. The occurrence time of initial failure varies according to different manufacturing methods, which can not be generalized. Generally, it occurs within 7 to 10 days after use.

    (2) Accidental failure smd detector switches manufacturer 

    It includes faults caused by poor semiconductor components, broken wires, short circuits, insufficient capacity of resistors and capacitors, broken circuits of circuit boards, with solder, etc., but the incidence is very low. When the proximity switch often fails, it can be considered as the problem of service environment. Please consult the manufacturer.

    (3) Load short circuit and wiring error

    When the load is short circuited due to wrong wiring or live working, large current flows to the detection switch and the output circuit is burned. As a protection countermeasure outside the detection switch, the method of cutting off the fast short-circuit current can be used for protection through the fuse, which can not only protect the load short-circuit, but also protect the ground wire. However, due to the small residual capacity of the output transistor in the switch, the effect of 100% can not be achieved.

    (4) Damage caused by interference wave

    The damage caused by interference wave is formed slowly, so it is very common to have damage one month or two or three months after starting to use. Therefore, in case of damage during this period, the cause can be judged as interference wave. The instantaneous error action of the detection switch when the inductive load is opened and closed is caused by the interference wave.

    FBelec`s Detector Switches are unique in design. They are used to “detect” mechanical movements and convert those into electronic signals.

CONTACT US

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  • Tel: 86-574-87793491
  • Add: 262#416Lane ZhaoHui Road YinZhou NingBo China
  • Phone: 18868647636
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