ORIENT Photorelay Introduction

Ray Wang [email protected] www.orient-opto.com

1, Product Introduction:

The structure of the photorelay: In the case of the ORIENT OR-440AS, the input side of the photorelay is equipped with an infrared led, and the output side is equipped with a photodiode array (hereinafter referred to as "PVG") and MOSFETs. Figure 1 shows an example of the internal structure of the 2.54SOP4 package, which is one of the photorelay unfolded packages. The LED on the input side and the PVG on the output side are placed face to face and are insulated with resin.

Figure 1. 

 

The working principle of the photoelectric relay OR-440A. The photorelay works by applying a current to the LED on the input side. The PVG on the output side then receives the infrared light from the LED, generating the electromotive force. This electromotive force drives the connected MOSFET gate, which opens the MOSFET.

The contact structure of optical relay form A is contact type, and the output side opens when a certain amount of current is applied to the input side. This contact type is also called normally open type. Denoted as 1a, denotes the 1-pole a contact relay and the 2-pole a contact relay, denoted as 2a. On the other hand, when a certain amount of current is applied to the input side, the output side of the form B contact type remains closed, and when the input current is below a certain level, the output side turns on. This type of contact is also known as normally closed contact. Denotes 1 pole b contact relay, denoted 1b; 2-pole b contact relay, marked 2b. The photorelay A uses an enhanced MOSFETs and the photoelectric relay B uses a depletion MOSFETs.

 

Figure 2.

 

 

2，The application

1）. The ORIENT Photorelay function is used in the circuit to monitor the charging voltage of the battery unit. The relay is expected to produce many contacts, and photoelectric relays are highly recommended because they do not have such a concept as contact life (long life). Advantages: Small size, long life, high withstand voltage.

                                           Figure 3.                         From TOSHIBAPhotorelay E-book(Replacement for mechanical relay)page64

 

2). The ORIENT Photorelay is used as a switch for the light and sound output of camera sets. Advantages No noise, long life, small size

 

                                   Figure 4.                                               From TOSHIBAPhotorelay E-book(Replacement for mechanical relay)page64

 

3). ORIENT Photorelay is used to monitor insulation deterioration of battery cells. If the insulation in the unit deteriorates, when the relay is switched on, the ground fault current passes through and the sensor detects the current. The high load voltage type Photorelay is the ideal high voltage battery.

1.The circuit principle：

High response speed

4.Typical model

 

ORIENT SOP4

1. Anode 2. Cathode 3.4. Drain

 

 

Product	Output type	Load Voltage (V)	Load Current (mA)	Ron Typ. (Ω)	Ifon max. (mA)	Viso (Vrms)
ORM406A	Normally Open 1 Form A	60	550	2	3	3750
ORM406A-16	Normally Open 1 Form A	60	1600	0.5	3	3750
ORM410A	Normally Open 1 Form A	100	250	1	3	3750
ORM425A	Normally Open 1 Form A	250	180	9	3	3750
ORM440A	Normally Open 1 Form A	400	150	20	3	3750
ORM460A	Normally Open 1 Form A	600	100	40	3	3750

ORIENT DIP4

1. Anode 2. Cathode 3.4. Drain

 

 

Product	Output type	Load Voltage (V)	Load Current (mA)	Ron Typ. (Ω)	Ifon max. (mA)	Viso (Vrms)
OR406A	Normally Open 1 Form A	60	550	2	3	5000
OR406A-16	Normally Open 1 Form A	60	1600	0.5	3	5000
OR410A	Normally Open 1 Form A	100	250	1	3	5000
OR425A	Normally Open 1 Form A	250	180	9	3	5000
OR440A	Normally Open 1 Form A	400	150	20	3	5000
OR460A	Normally Open 1 Form A	600	100	40	3	5000

ORIENT SMD5

1. Anode 2. Cathode 4. Drain 6. Drain

            

 

Product	Output type	Load Voltage (V)	Load Current (mA)	Ron Typ. (Ω)	Ifon max. (mA)	Viso (Vrms)
ORAQV258HP5S	Normally Open 1 Form A	1700	50	10	3	5000
ORAQV258HP5S-SJ	Normally Open 1 Form A	1700	50	70	3	5000
ORAQV258LP5	Normally Open 1 Form A	1500	20	150	3	5000

 

ORIENT SO16

4:Anode 5:Cathode 6:Anode 9:Drain 10:Drain 15:Drain 16:Drain

     

 

Product	Output type	Load Voltage (V)	Load Current (mA)	Ron Typ. (Ω)	Ifon max. (mA)	Viso (Vrms)
OR601J	Normally Open 1 Form A	1500	50	50	3	5000

Ray Wang [email protected] www.orient-opto.com