1A52 Datasheet PDF – Reed Switch ( 50W, 250V )

Part Number : 1A52

Function : SWITCH REED 250VDC 50W AXL

Package : Axial Type

Manufacturers : MEDER electronic

Image :

1A52 datasheet


Description :

The KSK-1A52 is a high power reed switch with glass length of 21.0mm and diameter of 2.75mm. Rated power 50 W, Switching voltage 250 VDC, Switching current 0.7 Amp DC.

– Glass length of 21 mm and diameter of 2.75 mm
– Normally open 1 Form A contact
– High breakdown voltage of 600 VDC


1. Overall Length mm (inches) : 55.4 (2.181)
2. Glass Length Max. mm (inches) : 21.0 (0.826)
3. Glass Dia. Max. mm (inches) : 2.75 (0.108)
4. Lead Dia. mm (inches) : 0.6 (0.023)
5. Contact Form : 1A (SPST) Normally Open (N.O.)
6. Pull-In Range : 15-70 AT
7. Rated Power Max. : 50W/250VDC/0.7 Amp DC


1. Position Sensor
2. Valve Detection
3. Level Sensor & Others

Other data sheets within the file : KSK-1A52, KSK-1A52-2530

1A52 Datasheet PDF Download

1A52 pdf

MOC7811 PDF Datasheet – (MOC78xx) Couplers / Interrupters

This post explains for the semiconductor MOC7811.

The Part Number is MOC7811.

The function of this semiconductor is (MOC78xx) Couplers / Interrupters.

Manufacturers : Motorola

Preview images :

MOC7811 PDF slotted coupler

Description :

Slotted couplers consist of an infrared emitting diode facing a photodetector in a molded plastic housing. A slot in the housing between the emitter and the detector provides a means of interrupting the signal. A wide selection of standard and custom housings and detector fuctions is available.


Pinouts :

1. Cathode
2. Collector
3. Anode
4. Emitter

1 page
MOC7811 image

Motorola offers high performance Infrared Emitters and Detectors for fiber optic systems.

Other data sheets within the file : MOC7812, MOC7813 MOC7821, MOC7822, MOC7823

MOC7811 PDF Datasheet