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: 0,688 € 10 205In 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	10 205In Stock	Cut Tape 0,688 € 0,479 € 0,348 € 0,285 € 0,267 € Reel 0,254 € 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 Full pitch MFP PhotoTrans Ouput FODM121B onsemi 1: 0,705 € 5 998In Stock	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	5 998In Stock	0,705 € 0,483 € 0,343 € 0,284 € View 0,261 € 0,244 € 0,226 € 0,211 € 0,195 €	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 Phototrans Ouput MFP Input FODM121AR2 onsemi 1: 0,619 € 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 0,619 € 0,422 € 0,30 € 0,248 € 0,227 € Reel 0,213 € 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: 0,585 € 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 0,585 € 0,402 € 0,286 € 0,236 € Reel 0,203 € View 0,217 € 0,188 € 0,175 € 0,163 € 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: 0,619 € 5 048In Stock 6 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	5 048In Stock 6 000On Order	0,619 € 0,421 € 0,298 € 0,247 € View 0,226 € 0,212 €	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: 0,619 € 5 549In Stock	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	5 549In Stock	0,619 € 0,421 € 0,298 € 0,247 € View 0,226 € 0,212 €	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: 0,645 € 365In Stock 22 500Expected 21/10/2027	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 21/10/2027	Cut Tape 0,645 € 0,44 € 0,312 € 0,258 € Reel 0,223 € View 0,237 € 0,206 € 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 Full pitch MFP PhotoTrans Ouput FODM121C onsemi 1: 0,714 € 2 497In Stock	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 497In Stock	0,714 € 0,488 € 0,347 € 0,286 € View 0,262 € 0,246 € 0,229 € 0,213 € 0,197 €	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 FODM121CR2 onsemi 1: 0,654 € 430In Stock 15 000Expected 21/10/2027	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	430In Stock 15 000Expected 21/10/2027	Cut Tape 0,654 € 0,444 € 0,316 € 0,261 € 0,239 € Reel 0,224 € 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: 0,679 € 351In Stock 5 000On 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	351In Stock 5 000On Order On Order Ship Dates Mfr. No: FODM121CR2V Stock: 351 Can Dispatch Immediately On Order: 2 500 Expected 21/10/2027 2 500 TBD Factory Lead Time: 40 Weeks	Cut Tape 0,679 € 0,464 € 0,329 € 0,272 € 0,249 € Reel 0,234 € 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: 0,619 € 3 655In 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 655In Stock	Cut Tape 0,619 € 0,422 € 0,30 € 0,248 € 0,227 € Reel 0,213 € 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 EMITTER ED-010IRC LT210IRGTK110IRGDET FODM121R2V onsemi 1: 0,645 € 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 0,645 € 0,441 € 0,313 € 0,259 € Reel 0,223 € View 0,237 € 0,206 € 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 4SO TR FODM121V onsemi 1: 0,645 € 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	0,645 € 0,439 € 0,312 € 0,258 € View 0,237 € 0,222 € 0,206 € 0,192 € 0,177 €	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: 0,714 € 4 209In Stock 6 000Expected 29/12/2026	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 209In Stock 6 000Expected 29/12/2026	0,714 € 0,488 € 0,347 € 0,286 € View 0,263 € 0,247 €	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: 0,654 € 1 843In 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	1 843In Stock 22 500On Order On Order Ship Dates Mfr. No: FODM124R2 Stock: 1 843 Can Dispatch Immediately On Order: 10 000 Expected 18/12/2026 12 500 Expected 19/04/2027 Factory Lead Time: 40 Weeks	Cut Tape 0,654 € 0,445 € 0,316 € 0,261 € 0,24 € Reel 0,224 € 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: 0,654 € 4 472In Stock 18 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	4 472In Stock 18 000On Order On Order Ship Dates Mfr. No: FODM2701 Stock: 4 472 Can Dispatch Immediately On Order: 3 000 Expected 17/11/2026 15 000 Expected 24/11/2026 Factory Lead Time: 35 Weeks	0,654 € 0,444 € 0,315 € 0,261 € View 0,239 € 0,224 €	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: 0,654 € 2 647In Stock 35 000On 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	2 647In Stock 35 000On Order On Order Ship Dates Mfr. No: FODM2701R2 Stock: 2 647 Can Dispatch Immediately On Order: 7 500 Expected 18/12/2026 17 500 Expected 21/10/2027 10 000 Expected 01/03/2028 Factory Lead Time: 52 Weeks	Cut Tape 0,654 € 0,445 € 0,316 € 0,261 € 0,24 € Reel 0,224 € 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: 0,722 € 4 013In 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 013In Stock	0,722 € 0,492 € 0,349 € 0,289 € View 0,265 € 0,249 €	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: 0,714 € 2 414In 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 414In Stock	Cut Tape 0,714 € 0,497 € 0,36 € 0,295 € Reel 0,263 € View 0,276 € 0,249 € 0,231 € 0,217 € 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: 0,697 € 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 01/03/2028 2 500 TBD Factory Lead Time: 40 Weeks	Cut Tape 0,697 € 0,477 € 0,339 € 0,28 € 0,257 € Reel 0,241 € 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 Phototrans Ouput MFP Input FODM121AV onsemi 1: 0,705 € 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	0,705 € 0,483 € 0,343 € 0,284 € View 0,261 € 0,244 € 0,226 €	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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