Transistor Output Optocouplers

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FODM121/124/2701/2705 Transistor Optocouplers

onsemi FODM121/124/2701/2705 Transistor Output Optocouplers consist of a gallium arsenide infrared emitting diode driving a phototransistor in a compact 4-pin mini-flat package. The lead pitch is 2.54mm. The FODM2705 series consists of two gallium arsenide infrared emitting diodes connected in inverse parallel for AC operation. Typical applications for onsemi FODM121/124/2701/2705 Transistor Output Optocouplers include digital logic inputs, microprocessor inputs, power supply monitor, twisted pair line receiver, and telephone line receiver.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (EUR) Filter the results in the table by unit price based on your quantity.	Qty.	Mounting Style	Package/Case	Number of Channels	Isolation Voltage	Output Type	Current Transfer Ratio - Min	Current Transfer Ratio - Max	If - Forward Current	Vf - Forward Voltage	Maximum Collector Emitter Voltage	Maximum Collector Current	Maximum Collector Emitter Saturation Voltage	Rise Time	Fall Time	Vr - Reverse Voltage	Pd - Power Dissipation	Minimum Operating Temperature	Maximum Operating Temperature	Series	Packaging
Transistor Output Optocouplers AC In Photo Xsistor Output Optocoupler FODM2705R2 onsemi 1: 0,645 € 22 655In Stock	Mfr. Part No. FODM2705R2 Mouser Part No 512-FODM2705R2	onsemi	Transistor Output Optocouplers AC In Photo Xsistor Output Optocoupler Learn More about onsemi fairchild fodm121 124 2701 2705	Datasheet	22 655In Stock	Cut Tape 0,645 € 0,447 € 0,314 € 0,272 € 0,233 € Reel 0,195 € MouseReel Available	Min.: 1 Mult.: 1 Max.: 2 500 : 2 500	SMD/SMT	SMD-4	1 Channel	3750 Vrms	NPN Phototransistor	50 %	300 %	50 mA	1.3 V	40 V	80 mA	300 mV	3 us	3 us	6 V	150 mW	- 40 C	+ 110 C	FODM2705	Reel, Cut Tape, MouseReel
Transistor Output Optocouplers EMITTER ED-010IRC LT210IRGTK110IRGDET FODM121R2V onsemi 1: 0,628 € 25In Stock	Mfr. Part No. FODM121R2V Mouser Part No 512-FODM121R2V	onsemi	Transistor Output Optocouplers EMITTER ED-010IRC LT210IRGTK110IRGDET Learn More about onsemi fairchild fodm121 124 2701 2705	Datasheet	25In Stock	Cut Tape 0,628 € 0,421 € 0,278 € 0,23 € 0,215 € Reel 0,19 € MouseReel Available	Min.: 1 Mult.: 1 : 2 500	SMD/SMT	SMD-4	1 Channel	3750 Vrms	NPN Phototransistor	50 %	600 %	50 mA	1.3 V	80 V	80 mA	400 mV	3 us	3 us	6 V	150 mW	- 40 C	+ 110 C	FODM121	Reel, Cut Tape, MouseReel
Transistor Output Optocouplers Phototrans Ouput MFP Input FODM121AR2 onsemi 1: 0,533 € 28 201In Stock	Mfr. Part No. FODM121AR2 Mouser Part No 512-FODM121AR2	onsemi	Transistor Output Optocouplers Phototrans Ouput MFP Input Learn More about onsemi fairchild fodm121 124 2701 2705	Datasheet	28 201In Stock	Cut Tape 0,533 € 0,37 € 0,249 € 0,217 € 0,204 € Reel 0,182 € MouseReel Available	Min.: 1 Mult.: 1 Max.: 2 500 : 2 500	SMD/SMT	SMD-4	1 Channel	3750 Vrms	NPN Phototransistor	100 %	300 %	50 mA	1.3 V	80 V	80 mA	400 mV	3 us	3 us	6 V	150 mW	- 40 C	+ 110 C	FODM121	Reel, Cut Tape, MouseReel
Transistor Output Optocouplers Phototrans Ouput MFP Input FODM121BR2 onsemi 1: 0,404 € 26 139In Stock	Mfr. Part No. FODM121BR2 Mouser Part No 512-FODM121BR2	onsemi	Transistor Output Optocouplers Phototrans Ouput MFP Input Learn More about onsemi fairchild fodm121 124 2701 2705	Datasheet	26 139In Stock	Cut Tape 0,404 € 0,292 € 0,24 € 0,208 € Reel 0,174 € View 0,197 € 0,169 € MouseReel Available	Min.: 1 Mult.: 1 : 2 500	SMD/SMT	SMD-4	1 Channel	3750 Vrms	NPN Phototransistor	50 %	150 %	50 mA	1.3 V	80 V	80 mA	400 mV	3 us	3 us	6 V	150 mW	- 40 C	+ 110 C	FODM121	Reel, Cut Tape, MouseReel
Transistor Output Optocouplers Phototransistor Optocoupler FODM121 onsemi 1: 0,421 € 16In Stock 12 000On Order	Mfr. Part No. FODM121 Mouser Part No 512-FODM121	onsemi	Transistor Output Optocouplers Phototransistor Optocoupler Learn More about onsemi fairchild fodm121 124 2701 2705	Datasheet	16In Stock 12 000On Order On Order Ship Dates Mfr. No: FODM121 Stock: 16 Can Dispatch Immediately On Order: 6 000 Pending 6 000 Expected 10/19/2026 Factory Lead Time: 35 Weeks	0,421 € 0,298 € 0,26 € 0,259 €	Min.: 1 Mult.: 1 Max.: 3 000	SMD/SMT	SMD-4	1 Channel	3750 Vrms	NPN Phototransistor	50 %	600 %	50 mA	1.3 V	80 V	80 mA	400 mV	3 us	3 us	6 V	150 mW	- 40 C	+ 110 C	FODM121	Tube
Transistor Output Optocouplers Full pitch MFP PhotoTrans Ouput FODM121A onsemi 1: 0,49 € 2 272In Stock 3 000On Order	Mfr. Part No. FODM121A Mouser Part No 512-FODM121A	onsemi	Transistor Output Optocouplers Full pitch MFP PhotoTrans Ouput Learn More about onsemi fairchild fodm121 124 2701 2705	Datasheet	2 272In Stock 3 000On Order	0,49 € 0,341 € 0,236 € 0,222 € View 0,213 € 0,202 €	Min.: 1 Mult.: 1 Max.: 3 000	SMD/SMT	SMD-4	1 Channel	3750 Vrms	NPN Phototransistor	100 %	300 %	50 mA	1.3 V	80 V	80 mA	400 mV	3 us	3 us	6 V	150 mW	- 40 C	+ 110 C	FODM121	Tube
Transistor Output Optocouplers Phototrans Ouput MFP Input FODM121AR2V onsemi 1: 0,568 € 365In Stock 22 500Expected 10/14/2027	Mfr. Part No. FODM121AR2V Mouser Part No 512-FODM121AR2V	onsemi	Transistor Output Optocouplers Phototrans Ouput MFP Input Learn More about onsemi fairchild fodm121 124 2701 2705	Datasheet	365In Stock 22 500Expected 10/14/2027	Cut Tape 0,568 € 0,39 € 0,298 € 0,247 € Reel 0,212 € View 0,226 € 0,196 € MouseReel Available	Min.: 1 Mult.: 1 : 2 500	SMD/SMT	SMD-4	1 Channel	3750 Vrms	NPN Phototransistor	100 %	300 %	50 mA	1.3 V	80 V	80 mA	400 mV	3 us	3 us	6 V	150 mW	- 40 C	+ 110 C	FODM121	Reel, Cut Tape, MouseReel
Transistor Output Optocouplers Phototrans Ouput MFP Input FODM121CR2 onsemi 1: 0,559 € 5 081In Stock	Mfr. Part No. FODM121CR2 Mouser Part No 512-FODM121CR2	onsemi	Transistor Output Optocouplers Phototrans Ouput MFP Input Learn More about onsemi fairchild fodm121 124 2701 2705	Datasheet	5 081In Stock	Cut Tape 0,559 € 0,385 € 0,28 € 0,231 € 0,216 € Reel 0,21 € MouseReel Available	Min.: 1 Mult.: 1 Max.: 2 500 : 2 500	SMD/SMT	SMD-4	1 Channel	3750 Vrms	NPN Phototransistor	100 %	200 %	50 mA	1.3 V	80 V	80 mA	400 mV	3 us	3 us	6 V	150 mW	- 40 C	+ 110 C	FODM121	Reel, Cut Tape, MouseReel
Transistor Output Optocouplers Phototrans Ouput MFP Input FODM121CR2V onsemi 1: 0,654 € 2 276In Stock 2 500On Order	Mfr. Part No. FODM121CR2V Mouser Part No 512-FODM121CR2V	onsemi	Transistor Output Optocouplers Phototrans Ouput MFP Input Learn More about onsemi fairchild fodm121 124 2701 2705	Datasheet	2 276In Stock 2 500On Order	Cut Tape 0,654 € 0,442 € 0,314 € 0,24 € 0,224 € Reel 0,206 € MouseReel Available	Min.: 1 Mult.: 1 Max.: 2 500 : 2 500	SMD/SMT	SMD-4	1 Channel	3750 Vrms	NPN Phototransistor	100 %	200 %	50 mA	1.3 V	80 V	80 mA	400 mV	3 us	3 us	6 V	150 mW	- 40 C	+ 110 C	FODM121	Reel, Cut Tape, MouseReel
Transistor Output Optocouplers Phototransistor Output Optocoupler FODM121R2 onsemi 1: 0,533 € 3 814In Stock	Mfr. Part No. FODM121R2 Mouser Part No 512-FODM121R2	onsemi	Transistor Output Optocouplers Phototransistor Output Optocoupler Learn More about onsemi fairchild fodm121 124 2701 2705	Datasheet	3 814In Stock	Cut Tape 0,533 € 0,37 € 0,267 € 0,222 € 0,206 € Reel 0,20 € MouseReel Available	Min.: 1 Mult.: 1 Max.: 2 500 : 2 500	SMD/SMT	SMD-4	1 Channel	3750 Vrms	NPN Phototransistor	50 %	600 %	10 mA	1.3 V	80 V	80 mA	400 mV	3 us	3 us	6 V	150 mW	- 40 C	+ 110 C	FODM121	Reel, Cut Tape, MouseReel
Transistor Output Optocouplers 4SO TR FODM121V onsemi 1: 0,533 € 2 838In Stock	Mfr. Part No. FODM121V Mouser Part No 512-FODM121V	onsemi	Transistor Output Optocouplers 4SO TR Learn More about onsemi fairchild fodm121 124 2701 2705	Datasheet	2 838In Stock	0,533 € 0,367 € 0,266 € 0,22 € View 0,206 € 0,171 € 0,163 € 0,156 €	Min.: 1 Mult.: 1	SMD/SMT	SMD-4	1 Channel	3750 Vrms	NPN Phototransistor	50 %	600 %	50 mA	1.3 V	80 V	80 mA	400 mV	3 us	3 us	6 V	150 mW	- 40 C	+ 110 C	FODM121
Transistor Output Optocouplers Phototransistor Output Optocoupler FODM124 onsemi 1: 0,611 € 4 378In Stock 6 000Expected 12/29/2026	Mfr. Part No. FODM124 Mouser Part No 512-FODM124	onsemi	Transistor Output Optocouplers Phototransistor Output Optocoupler Learn More about onsemi fairchild fodm121 124 2701 2705	Datasheet	4 378In Stock 6 000Expected 12/29/2026	0,611 € 0,404 € 0,267 € 0,259 € View 0,233 € 0,223 €	Min.: 1 Mult.: 1 Max.: 3 000	SMD/SMT	SMD-4	1 Channel	3750 Vrms	NPN Phototransistor	100 %	1200 %	50 mA	1.3 V	80 V	80 mA	400 mV	3 us	3 us	6 V	150 mW	- 40 C	+ 110 C	FODM124	Tube
Transistor Output Optocouplers Phototransistor Output Optocoupler FODM124R2 onsemi 1: 0,576 € 2 250In Stock 22 500On Order	Mfr. Part No. FODM124R2 Mouser Part No 512-FODM124R2	onsemi	Transistor Output Optocouplers Phototransistor Output Optocoupler Learn More about onsemi fairchild fodm121 124 2701 2705	Datasheet	2 250In Stock 22 500On Order On Order Ship Dates Mfr. No: FODM124R2 Stock: 2 250 Can Dispatch Immediately On Order: 10 000 Expected 12/18/2026 12 500 Expected 4/19/2027 Factory Lead Time: 40 Weeks	Cut Tape 0,576 € 0,412 € 0,295 € 0,249 € 0,229 € Reel 0,192 € MouseReel Available	Min.: 1 Mult.: 1 Max.: 2 500 : 2 500	SMD/SMT	SMD-4	1 Channel	3750 Vrms	NPN Phototransistor	100 %	1200 %	50 mA	1.3 V	80 V	80 mA	400 mV	3 us	3 us	6 V	150 mW	- 40 C	+ 110 C	FODM124	Reel, Cut Tape, MouseReel
Transistor Output Optocouplers Phototransistor Output Optocoupler FODM2701 onsemi 1: 0,525 € 190In Stock 24 000On Order	Mfr. Part No. FODM2701 Mouser Part No 512-FODM2701	onsemi	Transistor Output Optocouplers Phototransistor Output Optocoupler Learn More about onsemi fairchild fodm121 124 2701 2705	Datasheet	190In Stock 24 000On Order On Order Ship Dates Mfr. No: FODM2701 Stock: 190 Can Dispatch Immediately On Order: 6 000 Pending 3 000 Expected 11/17/2026 15 000 Expected 11/24/2026 Factory Lead Time: 35 Weeks	0,525 € 0,368 € 0,288 € 0,272 €	Min.: 1 Mult.: 1 Max.: 3 000	SMD/SMT	SMD-4	1 Channel	3750 Vrms	NPN Phototransistor	50 %	300 %	50 mA	1.3 V	40 V	80 mA	300 mV	3 us	3 us	6 V	150 mW	- 40 C	+ 110 C	FODM2701	Tube
Transistor Output Optocouplers Phototransistor Output Optocoupler FODM2701R2 onsemi 1: 0,559 € 4 346In Stock 17 500On Order	Mfr. Part No. FODM2701R2 Mouser Part No 512-FODM2701R2	onsemi	Transistor Output Optocouplers Phototransistor Output Optocoupler Learn More about onsemi fairchild fodm121 124 2701 2705	Datasheet	4 346In Stock 17 500On Order On Order Ship Dates Mfr. No: FODM2701R2 Stock: 4 346 Can Dispatch Immediately On Order: 7 500 Expected 12/18/2026 10 000 Expected 3/1/2028 Factory Lead Time: 52 Weeks	Cut Tape 0,559 € 0,386 € 0,28 € 0,232 € 0,217 € Reel 0,191 € MouseReel Available	Min.: 1 Mult.: 1 Max.: 2 500 : 2 500	SMD/SMT	SMD-4	1 Channel	3750 Vrms	NPN Phototransistor	50 %	300 %	50 mA	1.3 V	40 V	80 mA	300 mV	3 us	3 us	6 V	150 mW	- 40 C	+ 110 C	FODM2701	Reel, Cut Tape, MouseReel
Transistor Output Optocouplers AC In Phototransistr Output Optocoupler FODM2705 onsemi 1: 0,697 € 4 888In Stock	Mfr. Part No. FODM2705 Mouser Part No 512-FODM2705	onsemi	Transistor Output Optocouplers AC In Phototransistr Output Optocoupler Learn More about onsemi fairchild fodm121 124 2701 2705	Datasheet	4 888In Stock	0,697 € 0,47 € 0,269 € 0,261 € 0,25 €	Min.: 1 Mult.: 1 Max.: 3 000	SMD/SMT	SMD-4	1 Channel	3750 Vrms	NPN Phototransistor	50 %	300 %	50 mA	1.3 V	40 V	80 mA	300 mV	3 us	3 us	6 V	150 mW	- 40 C	+ 110 C	FODM2705	Tube
Transistor Output Optocouplers Phototrans Ouput MFP Input FODM2705R2V onsemi 1: 0,662 € 2 412In Stock	Mfr. Part No. FODM2705R2V Mouser Part No 512-FODM2705R2V	onsemi	Transistor Output Optocouplers Phototrans Ouput MFP Input Learn More about onsemi fairchild fodm121 124 2701 2705	Datasheet	2 412In Stock	Cut Tape 0,662 € 0,46 € 0,336 € 0,28 € Reel 0,232 € View 0,262 € 0,218 € 0,204 € 0,196 € MouseReel Available	Min.: 1 Mult.: 1 : 2 500	SMD/SMT	SMD-4	1 Channel	3750 Vrms	NPN Phototransistor			50 mA	1.4 V	40 V	80 mA	300 mV			6 V	150 mW	- 40 C	+ 110 C	FODM2705	Reel, Cut Tape, MouseReel
Transistor Output Optocouplers Phototransistor Out VDE Certified FODM124R2V onsemi 1: 0,593 € 14 965On Order	Mfr. Part No. FODM124R2V Mouser Part No 512-FODM124R2V	onsemi	Transistor Output Optocouplers Phototransistor Out VDE Certified Learn More about onsemi fairchild fodm121 124 2701 2705	Datasheet	14 965On Order On Order Ship Dates Mfr. No: FODM124R2V Stock: 0 On Order: 12 465 Expected 3/1/2028 2 500 TBD Factory Lead Time: 40 Weeks	Cut Tape 0,593 € 0,409 € 0,297 € 0,267 € 0,245 € Reel 0,212 € MouseReel Available	Min.: 1 Mult.: 1 Max.: 2 500 : 2 500	SMD/SMT	SMD-4	1 Channel	3750 Vrms	NPN Phototransistor	100 %	1200 %	50 mA	1.3 V	80 V	80 mA	400 mV	3 us	3 us	6 V	150 mW	- 40 C	+ 110 C	FODM124	Reel, Cut Tape, MouseReel
Transistor Output Optocouplers Full pitch MFP PhotoTrans Ouput FODM121B onsemi 1: 0,628 € 6 000On Order	Mfr. Part No. FODM121B Mouser Part No 512-FODM121B	onsemi	Transistor Output Optocouplers Full pitch MFP PhotoTrans Ouput Learn More about onsemi fairchild fodm121 124 2701 2705	Datasheet	6 000On Order	0,628 € 0,438 € 0,318 € 0,264 € View 0,231 € 0,214 €	Min.: 1 Mult.: 1	SMD/SMT	SMD-4	1 Channel	3750 Vrms	NPN Phototransistor	50 %	150 %	50 mA	1.3 V	80 V	80 mA	400 mV	3 us	3 us	6 V	150 mW	- 40 C	+ 110 C	FODM121	Tube
Transistor Output Optocouplers Full pitch MFP PhotoTrans Ouput FODM121C onsemi 1: 0,671 € 2 915On Order	Mfr. Part No. FODM121C Mouser Part No 512-FODM121C	onsemi	Transistor Output Optocouplers Full pitch MFP PhotoTrans Ouput Learn More about onsemi fairchild fodm121 124 2701 2705	Datasheet	2 915On Order	0,671 € 0,454 € 0,326 € 0,27 € View 0,243 € 0,217 €	Min.: 1 Mult.: 1	SMD/SMT	SMD-4	1 Channel	3750 Vrms	NPN Phototransistor	100 %	200 %	50 mA	1.3 V	80 V	80 mA	400 mV	3 us	3 us	6 V	150 mW	- 40 C	+ 110 C	FODM121	Tube
Transistor Output Optocouplers Phototrans Ouput MFP Input FODM121AV onsemi 1: 0,628 € Non-Stocked Lead-Time 26 Weeks	Mfr. Part No. FODM121AV Mouser Part No 512-FODM121AV	onsemi	Transistor Output Optocouplers Phototrans Ouput MFP Input Learn More about onsemi fairchild fodm121 124 2701 2705	Datasheet	Non-Stocked Lead-Time 26 Weeks	0,628 € 0,438 € 0,318 € 0,264 € View 0,247 € 0,224 € 0,212 €	Min.: 1 Mult.: 1	SMD/SMT	SMD-4	1 Channel	3750 Vrms	NPN Phototransistor			50 mA	1.3 V	80 V	80 mA	400 mV			6 V	150 mW	- 40 C	+ 110 C	FODM121	Tube

FODM121/124/2701/2705 Transistor Optocouplers

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