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 (USD) 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 Full pitch MFP PhotoTrans Ouput FODM121B onsemi 1: $0.83 6,000In Stock	Mfr. Part # FODM121B Mouser Part # 512-FODM121B	onsemi	Transistor Output Optocouplers Full pitch MFP PhotoTrans Ouput Learn More about onsemi fairchild fodm121 124 2701 2705	Datasheet	6,000In Stock	$0.83 $0.563 $0.40 $0.331 View $0.304 $0.237 $0.217 $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 Phototransistor Optocoupler FODM121 onsemi 1: $0.72 11,048In Stock	Mfr. Part # FODM121 Mouser Part # 512-FODM121	onsemi	Transistor Output Optocouplers Phototransistor Optocoupler Learn More about onsemi fairchild fodm121 124 2701 2705	Datasheet	11,048In Stock	$0.72 $0.489 $0.347 $0.287 View $0.263 $0.247 $0.229 $0.213 $0.197	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	Tube
Transistor Output Optocouplers Phototrans Ouput MFP Input FODM121AR2 onsemi 1: $0.73 27,603In Stock	Mfr. Part # FODM121AR2 Mouser Part # 512-FODM121AR2	onsemi	Transistor Output Optocouplers Phototrans Ouput MFP Input Learn More about onsemi fairchild fodm121 124 2701 2705	Datasheet	27,603In Stock	Cut Tape $0.73 $0.492 $0.35 $0.289 Reel $0.236 View $0.265 $0.215 $0.203 $0.198 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 FODM121BR2 onsemi 1: $0.57 26,093In Stock	Mfr. Part # FODM121BR2 Mouser Part # 512-FODM121BR2	onsemi	Transistor Output Optocouplers Phototrans Ouput MFP Input Learn More about onsemi fairchild fodm121 124 2701 2705	Datasheet	26,093In Stock	Cut Tape $0.57 $0.396 $0.292 $0.247 Reel $0.23 View $0.231 $0.229 $0.225 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 AC In Photo Xsistor Output Optocoupler FODM2705R2 onsemi 1: $0.80 14,752In Stock	Mfr. Part # FODM2705R2 Mouser Part # 512-FODM2705R2	onsemi	Transistor Output Optocouplers AC In Photo Xsistor Output Optocoupler Learn More about onsemi fairchild fodm121 124 2701 2705	Datasheet	14,752In Stock	Cut Tape $0.80 $0.557 $0.405 $0.331 Reel $0.295 View $0.31 $0.28 $0.26 $0.244 MouseReel Available	Min.: 1 Mult.: 1 : 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 FODM121A onsemi 1: $0.60 5,349In Stock	Mfr. Part # FODM121A Mouser Part # 512-FODM121A	onsemi	Transistor Output Optocouplers Full pitch MFP PhotoTrans Ouput Learn More about onsemi fairchild fodm121 124 2701 2705	Datasheet	5,349In Stock	$0.60 $0.414 $0.305 $0.259 View $0.241 $0.227 $0.214 $0.202 $0.189	Min.: 1 Mult.: 1	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: $0.63 365In Stock 22,500Expected 4/12/2028	Mfr. Part # FODM121AR2V Mouser Part # 512-FODM121AR2V	onsemi	Transistor Output Optocouplers Phototrans Ouput MFP Input Learn More about onsemi fairchild fodm121 124 2701 2705	Datasheet	365In Stock 22,500Expected 4/12/2028	Cut Tape $0.63 $0.433 $0.364 $0.301 $0.277 Reel $0.213 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: $0.84 3,014In Stock	Mfr. Part # FODM121C Mouser Part # 512-FODM121C	onsemi	Transistor Output Optocouplers Full pitch MFP PhotoTrans Ouput Learn More about onsemi fairchild fodm121 124 2701 2705	Datasheet	3,014In Stock	$0.84 $0.568 $0.404 $0.334 View $0.306 $0.261 $0.234 $0.221 $0.211	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: $0.77 747In Stock 15,000Expected 4/12/2028	Mfr. Part # FODM121CR2 Mouser Part # 512-FODM121CR2	onsemi	Transistor Output Optocouplers Phototrans Ouput MFP Input Learn More about onsemi fairchild fodm121 124 2701 2705	Datasheet	747In Stock 15,000Expected 4/12/2028	Cut Tape $0.77 $0.517 $0.368 $0.304 $0.279 Reel $0.206 MouseReel Available	Min.: 1 Mult.: 1 : 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: $0.80 351In Stock 10,000On Order	Mfr. Part # FODM121CR2V Mouser Part # 512-FODM121CR2V	onsemi	Transistor Output Optocouplers Phototrans Ouput MFP Input Learn More about onsemi fairchild fodm121 124 2701 2705	Datasheet	351In Stock 10,000On Order On Order Ship Dates Mfr. #: FODM121CR2V Stock: 351 Can Ship Immediately On Order: 2,500 Expected 1/12/2028 7,500 Expected 4/12/2028 Factory Lead-Time: 45 Weeks	Cut Tape $0.80 $0.54 $0.384 $0.317 $0.291 Reel $0.22 MouseReel Available	Min.: 1 Mult.: 1 : 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: $0.73 4,267In Stock	Mfr. Part # FODM121R2 Mouser Part # 512-FODM121R2	onsemi	Transistor Output Optocouplers Phototransistor Output Optocoupler Learn More about onsemi fairchild fodm121 124 2701 2705	Datasheet	4,267In Stock	Cut Tape $0.73 $0.492 $0.35 $0.289 Reel $0.248 View $0.265 $0.23 $0.214 $0.198 MouseReel Available	Min.: 1 Mult.: 1 : 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: $0.76 25In Stock	Mfr. Part # FODM121R2V Mouser Part # 512-FODM121R2V	onsemi	Transistor Output Optocouplers EMITTER ED-010IRC LT210IRGTK110IRGDET Learn More about onsemi fairchild fodm121 124 2701 2705	Datasheet	25In Stock	Cut Tape $0.76 $0.514 $0.365 $0.302 $0.277 Reel $0.203 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: $0.76 2,838In Stock	Mfr. Part # FODM121V Mouser Part # 512-FODM121V	onsemi	Transistor Output Optocouplers 4SO TR Learn More about onsemi fairchild fodm121 124 2701 2705	Datasheet	2,838In Stock	$0.76 $0.512 $0.364 $0.301 View $0.276 $0.215 $0.194 $0.19	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: $0.73 4,297In Stock 6,000Expected 1/22/2027	Mfr. Part # FODM124 Mouser Part # 512-FODM124	onsemi	Transistor Output Optocouplers Phototransistor Output Optocoupler Learn More about onsemi fairchild fodm121 124 2701 2705	Datasheet	4,297In Stock 6,000Expected 1/22/2027	$0.73 $0.49 $0.35 $0.30 View $0.28 $0.241 $0.233 $0.228	Min.: 1 Mult.: 1	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: $0.71 1,815In Stock 37,500On Order	Mfr. Part # FODM124R2 Mouser Part # 512-FODM124R2	onsemi	Transistor Output Optocouplers Phototransistor Output Optocoupler Learn More about onsemi fairchild fodm121 124 2701 2705	Datasheet	1,815In Stock 37,500On Order On Order Ship Dates Mfr. #: FODM124R2 Stock: 1,815 Can Ship Immediately On Order: 10,000 Expected 1/5/2027 12,500 Expected 4/19/2027 15,000 Expected 11/4/2027 Factory Lead-Time: 42 Weeks	Cut Tape $0.71 $0.485 $0.339 $0.292 $0.272 Reel $0.211 MouseReel Available	Min.: 1 Mult.: 1 : 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: $0.65 4,907In Stock 18,000On Order	Mfr. Part # FODM2701 Mouser Part # 512-FODM2701	onsemi	Transistor Output Optocouplers Phototransistor Output Optocoupler Learn More about onsemi fairchild fodm121 124 2701 2705	Datasheet	4,907In Stock 18,000On Order On Order Ship Dates Mfr. #: FODM2701 Stock: 4,907 Can Ship Immediately On Order: 3,000 Expected 11/17/2026 15,000 Expected 11/24/2026 Factory Lead-Time: 42 Weeks	$0.65 $0.462 $0.346 $0.323 View $0.251 $0.239 $0.23	Min.: 1 Mult.: 1	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: $0.73 5,018In Stock 35,000On Order	Mfr. Part # FODM2701R2 Mouser Part # 512-FODM2701R2	onsemi	Transistor Output Optocouplers Phototransistor Output Optocoupler Learn More about onsemi fairchild fodm121 124 2701 2705	Datasheet	5,018In Stock 35,000On Order On Order Ship Dates Mfr. #: FODM2701R2 Stock: 5,018 Can Ship Immediately On Order: 7,500 Expected 1/22/2027 10,000 Expected 3/15/2028 17,500 Expected 4/12/2028 Factory Lead-Time: 42 Weeks	Cut Tape $0.73 $0.50 $0.349 $0.305 Reel $0.254 View $0.28 $0.224 $0.211 $0.20 MouseReel Available	Min.: 1 Mult.: 1 : 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: $0.85 3,805In Stock	Mfr. Part # FODM2705 Mouser Part # 512-FODM2705	onsemi	Transistor Output Optocouplers AC In Phototransistr Output Optocoupler Learn More about onsemi fairchild fodm121 124 2701 2705	Datasheet	3,805In Stock	$0.85 $0.573 $0.407 $0.337 View $0.309 $0.289 $0.251 $0.241 $0.231	Min.: 1 Mult.: 1	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: $0.84 2,414In Stock	Mfr. Part # FODM2705R2V Mouser Part # 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 $0.84 $0.578 $0.42 $0.344 Reel $0.306 View $0.322 $0.263 $0.246 $0.239 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: $0.78 14,965On Order	Mfr. Part # FODM124R2V Mouser Part # 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. #: FODM124R2V Stock: 0 On Order: 2,465 Expected 3/15/2028 12,500 Expected 4/12/2028 Factory Lead-Time: 42 Weeks	Cut Tape $0.78 $0.489 $0.374 $0.331 $0.314 Reel $0.231 MouseReel Available	Min.: 1 Mult.: 1 : 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: $0.83 Non-Stocked Lead-Time 26 Weeks	Mfr. Part # FODM121AV Mouser Part # 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	$0.83 $0.563 $0.40 $0.331 View $0.304 $0.252 $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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FODM121/124/2701/2705 Transistor Optocouplers

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