Analog Linear Opto Couplers for Audio Power Amplifier Protect and Control WDYJ-0202 Series

     Analog Linear Opto Couplers for Audio Power Amplifier Protect and Control                                            Model Number :  WDYJ-0202 Series                                             1.Product Description and Main Features  Analog Linear Optocouper through input current changes to control the resistance change photoelectric device, is the use of Cds and LED through strict selection, aging, test and a line made similar linear photoelectric coupler. This product characteristics: 1, pure resistance materials, non-polarity output; 2, the simple circuit structure for DC and AC applied; 3, input and output isolation effect is good, low distortion coupling. 2.Main Application Audio power amplifier protection and control;  The volume control and electrical isolation coupling; Transmission and automatic control; Lamplight adjustment and motor speed control. 3.Basic Applications and Test Circuits    4..Parameter(TA=25°C)

Parameter	Rating	Unit
Isolation Voltage(peak)	2000	V
Soldering Temperature	260<5S	C
Operating Temperature	-40 to 75	C
Storage Temperature	-40 to 75	C

5.Featrues(TA=25C) LED

Parameter	Symbol	Test Conditions	Min.	Typ.	Max.	Unit
Forward Current	IF			20		mA
Forward Voltage	Vf	IF=20mA	1.9	2.0	2.5	V
Reverse Current	u	Vr=4V			10	u A

 CELL

Parameter	Symbol	Test Conditions	Min.	Typ.	Max.	Unit
Maximum Cell Voltage	Vc	(Peak AC or DC)			60	V
Power Dissipation	Pd	Derate linearly to 0 at 75°C			50	mW

Coupled

Parameter	Symbol	Test Conditions	Min.	Typ.	Max.	Unit
On Resistance	Ron
WDYJ-0202RA		IF=40mA*	60		90	Q
WDYJ-0202RB1		IF=1mA*			700	Q
WDYJ-0202RB2		IF=1mA*	700		1100	Q
WDYJ-0202RC		IF=1mA*	0.9		1.6	KQ
WDYJ-0202RD		IF=1mA*	1.5		2.5	KQ
WDYJ-0202RG		IF=1mA*	2.5		5	KQ
WDYJ-0202YH		IF=1mAx	10		20	KQ
WDYJ-0202YI		IF=1mAx	20		40	KQ
Off Resistance	Roff	10 sec after If= 0.5Vdc on cell	1			MQ
Rise Time	Tr	Time to 63% of final conductance @ If= 20mA		3.5		msec
Fall Time	Tf	Time to 100K after removal of If = 20mA		500		msec
Cell Temp Coefficient		IF > 5 mA		0.7		%/°C

* measured after a dark history of one week

  6.DIMENSIONS (Unit: mm)   7.Note Recommend pin 4mm light-coupler bottom at a distance as far as possible in welding, welding time shortened.     Lieen  skype: isweek_lieenli   Sale Dep.Shenzhen Week Technology Ltd   Tel:  +86-755-83289036    Ext.817     
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