ISOM811x/ISOM811x-Q1 Single-Channel Opto-Emulator

Texas Instruments ISOM811x/ISOM811x-Q1 Single-Channel Opto-Emulator is pin-compatible and a drop-in-replacement for many traditional optocouplers, providing enhancements to existing systems without requiring a PCB redesign. This module features a diode-emulator input and transistor output, supporting a 3.75kVRMS isolation rating. The single-channel opto-emulator offers reliability and performance advantages compared to optocouplers. The advantages include high bandwidth, low turn-off delay, a wide -55°C to 125°C temperature range, and low power consumption. Additional benefits include tight Current Transfer Ratio (CTR) and process controls, resulting in small part-to-part skew. The ISOM811x/ISOM811x-Q1 opto-emulator is ideal for power supply feedback design, I/O modules in industrial controllers, motor drives, and factory automation applications. The ISOM811x-Q1 devices are AEC-Q100 qualified for automotive applications.

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Qty. RoHS ECAD Model Mounting Style
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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
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Texas Instruments Transistor Output Optocouplers DC-input transistor- output single-chann
Datasheet
3.398In Stock
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: 2.000

SMD/SMT SOIC-4 1 Channel 3750 Vrms Phototransistor 375 % 560 % 50 mA 1.4 V 80 V 50 mA 300 mV 3.2 us 4 us 7 V 290 mW - 55 C + 125 C ISOM8113 Reel, Cut Tape, MouseReel
Texas Instruments Transistor Output Optocouplers Automotive DC-input transistor-output s
Datasheet
1.524In Stock
4.000Expected 08/10/2026
Min.: 1
Mult.: 1
Max.: 1.001
: 2.000

SMD/SMT SOIC-4 1 Channel 3750 Vrms Phototransistor 295 % 655 % 50 mA 1.4 V 80 V 50 mA 300 mV 2.5 us 7.5 us 7 V 290 mW - 40 C + 125 C ISOM8113 AEC-Q100 Reel, Cut Tape
Texas Instruments Transistor Output Optocouplers DC input transistor output single-chan
Datasheet
3.500In Stock
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Max.: 1.001
: 2.000

SMD/SMT SOIC-4 1 Channel 5000 Vrms Phototransistor 195 % 710 % 50 mA 1.2 V 80 V 50 mA 300 mV 2.5 us 7.5 us 7 V 290 mW - 55 C + 125 C ISOM8113 Reel, Cut Tape, MouseReel
Texas Instruments Transistor Output Optocouplers Automotive DC-input transistor-output s
Datasheet
1.717In Stock
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Min.: 1
Mult.: 1
Max.: 1.001
: 2.000

SMD/SMT SOIC-4 1 Channel 5000 Vrms Phototransistor 295 % 655 % 20 mA 1.2 V 80 V 50 mA 300 mV 2.5 us 7.5 us 7 V 290 mW - 40 C + 125 C ISOM8113-Q1 AEC-Q100 Reel, Cut Tape, MouseReel
Texas Instruments Transistor Output Optocouplers AC-input transistor- output single-chann
Datasheet
2.898In Stock
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Max.: 1.001
: 2.000

SMD/SMT SOIC-4 1 Channel 3750 Vrms Phototransistor 100 % 155 % 50 mA 1.5 V 80 V 50 mA 300 mV 3.2 us 4 us 7 V 290 mW - 55 C + 125 C ISOM8115 Reel, Cut Tape, MouseReel
Texas Instruments Transistor Output Optocouplers Automotive AC-input transistor-output s
Datasheet
1.060In Stock
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SMD/SMT SOIC-4 1 Channel 3750 Vrms Phototransistor 100 % 155 % 50 mA 1.5 V 80 V 50 mA 300 mV 3.2 us 4 us 7 V 290 mW - 55 C + 125 C ISOM8115 AEC-Q100 Reel, Cut Tape, MouseReel
Texas Instruments Transistor Output Optocouplers AC input transistor output single chan
Datasheet
1.359In Stock
Min.: 1
Mult.: 1
Max.: 1.001
: 2.000

SMD/SMT SOIC-4 1 Channel 3750 Vrms Phototransistor 55 % 195 % 50 mA 1.5 V 80 V 50 mA 300 mV 3.2 us 4 us 7 V 290 mW - 55 C + 125 C ISOM8115 Reel, Cut Tape
Texas Instruments Transistor Output Optocouplers AC input transistor output single chan
Datasheet
1.990In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2.000

SMD/SMT SOIC-4 1 Channel 5000 Vrms Phototransistor 55 % 195 % 50 mA 1.2 V 80 V 50 mA 300 mV 3.2 us 4 us 7 V 290 mW - 55 C + 125 C ISOM8115 Reel, Cut Tape, MouseReel
Texas Instruments Transistor Output Optocouplers AC-input transistor- output single-chann
Datasheet
3.866In Stock
MouseReel Available
Min.: 1
Mult.: 1
Max.: 1.001
: 2.000

SMD/SMT SOIC-4 1 Channel 3750 Vrms Phototransistor 150 % 230 % 50 mA 1.5 V 80 V 50 mA 300 mV 3.2 us 4 us 7 V 290 mW - 55 C + 125 C ISOM8116 Reel, Cut Tape, MouseReel
Texas Instruments Transistor Output Optocouplers AC input transistor output single chan
Datasheet
1.743In Stock
Min.: 1
Mult.: 1
Max.: 1.001
: 2.000

SMD/SMT SOIC-4 1 Channel 3750 Vrms Phototransistor 80 % 290 % 50 mA 1.5 V 80 V 50 mA 300 mV 3.2 us 4 us 7 V 290 mW - 55 C + 125 C ISOM8116 Reel, Cut Tape
Texas Instruments Transistor Output Optocouplers AC input transistor output single chan
Datasheet
1.970In Stock
MouseReel Available
Min.: 1
Mult.: 1
Max.: 1.001
: 2.000

SMD/SMT SOIC-4 1 Channel 5000 Vrms Phototransistor 80 % 290 % 50 mA 1.2 V 80 V 50 mA 300 mV 3.2 us 4 us 7 V 290 mW - 55 C + 125 C ISOM8116 Reel, Cut Tape, MouseReel
Texas Instruments Transistor Output Optocouplers AC Input Transistor Output Single Chan
Datasheet
3.491In Stock
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: 2.000

SMD/SMT SOIC-4 1 Channel 3750 Vrms Phototransistor 255 % 380 % 50 mA 1.5 V 80 V 50 mA 300 mV 3.2 us 4 us 7 V 290 mW - 55 C + 125 C ISOM8117 Reel, Cut Tape, MouseReel
Texas Instruments Transistor Output Optocouplers AC input transistor output single chan
Datasheet
1.925In Stock
Min.: 1
Mult.: 1
Max.: 1.001
: 2.000

SMD/SMT SOIC-4 1 Channel 3750 Vrms Phototransistor 135 % 480 % 50 mA 1.5 V 80 V 50 mA 300 mV 3.2 us 4 us 7 V 290 mW - 55 C + 125 C ISOM8117 Reel, Cut Tape
Texas Instruments Transistor Output Optocouplers AC input transistor output single chan
Datasheet
1.973In Stock
MouseReel Available
Min.: 1
Mult.: 1
Max.: 1.001
: 2.000

SMD/SMT SOIC-4 1 Channel 5000 Vrms Phototransistor 135 % 480 % 50 mA 1.2 V 80 V 50 mA 300 mV 3.2 us 4 us 7 V 290 mW - 55 C + 125 C ISOM8117 Reel, Cut Tape, MouseReel
Texas Instruments Transistor Output Optocouplers AC-input transistor- output single-chann
Datasheet
2.071In Stock
MouseReel Available
Min.: 1
Mult.: 1
Max.: 1.001
: 2.000

SMD/SMT SOIC-4 1 Channel 3750 Vrms Phototransistor 375 % 560 % 50 mA 1.5 V 80 V 50 mA 300 mV 3.2 us 4 us 7 V 290 mW - 55 C + 125 C ISOM8118 Reel, Cut Tape, MouseReel
Texas Instruments Transistor Output Optocouplers AC input transistor output single chan
Datasheet
1.882In Stock
Min.: 1
Mult.: 1
Max.: 1.001
: 2.000

SMD/SMT SOIC-4 1 Channel 3750 Vrms Phototransistor 195 % 710 % 50 mA 1.5 V 80 V 50 mA 300 mV 3.2 us 4 us 7 V 290 mW - 55 C + 125 C ISOM8118 Reel, Cut Tape
Texas Instruments Transistor Output Optocouplers Automotive AC-input transistor-output s
Datasheet
1.825In Stock
Min.: 1
Mult.: 1
Max.: 1.001
: 2.000

SMD/SMT SOIC-4 1 Channel 3750 Vrms Phototransistor 295 % 655 % 50 mA 1.4 V 80 V 50 mA 300 mV 3.2 us 4 us 7 V 290 mW - 40 C + 125 C ISOM8118 AEC-Q100 Reel, Cut Tape
Texas Instruments Transistor Output Optocouplers AC input transistor output single chan
Datasheet
1.738In Stock
MouseReel Available
Min.: 1
Mult.: 1
Max.: 1.001
: 2.000

SMD/SMT SOIC-4 1 Channel 5000 Vrms Phototransistor 195 % 710 % 50 mA 1.2 V 80 V 50 mA 300 mV 3.2 us 4 us 7 V 290 mW - 55 C + 125 C ISOM8118 Reel, Cut Tape, MouseReel

Texas Instruments Transistor Output Optocouplers DC input transistor output single-chan
Datasheet
13.152In Stock
90.000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 2.000

SMD/SMT SOIC-4 1 Channel 3750 Vrms Phototransistor 55 % 195 % 50 mA 1.4 V 80 V 50 mA 300 mV 3.2 us 4 us 7 V 290 mW - 55 C + 125 C ISOM8110 Reel, Cut Tape, MouseReel
Texas Instruments Transistor Output Optocouplers DC input transistor output single chan
Datasheet
639In Stock
2.000Expected 14/10/2026
MouseReel Available
Min.: 1
Mult.: 1
Max.: 1.001
: 2.000

SMD/SMT SOIC-4 1 Channel 5000 Vrms Phototransistor 80 % 290 % 50 mA 1.2 V 80 V 50 mA 300 mV 3.2 us 4 us 7 V 290 mW - 55 C + 125 C ISOM8111 Reel, Cut Tape, MouseReel
Texas Instruments Transistor Output Optocouplers Automotive AC-input transistor-output s
Datasheet
8In Stock
2.000Expected 28/01/2027
MouseReel Available
Min.: 1
Mult.: 1
Max.: 1.001
: 2.000

SMD/SMT SOIC-4 1 Channel 3750 Vrms Phototransistor 375 % 560 % 50 mA 1.5 V 80 V 50 mA 300 mV 3.2 us 4 us 7 V 290 mW - 55 C + 125 C ISOM8118 AEC-Q100 Reel, Cut Tape, MouseReel
Texas Instruments Transistor Output Optocouplers Automotive DC-input transistor-output s
Datasheet
5.672On Order
MouseReel Available
Min.: 1
Mult.: 1
: 2.000

SMD/SMT SOIC-4 1 Channel 3750 Vrms Phototransistor 80 % 180 % 50 mA 1.4 V 80 V 50 mA 300 mV 3.2 us 4 us 7 V 290 mW - 40 C + 125 C ISOM8110 AEC-Q100 Reel, Cut Tape, MouseReel
Texas Instruments Transistor Output Optocouplers DC input transistor output single-chan
Datasheet
5.990On Order
Min.: 1
Mult.: 1
: 2.000

SMD/SMT SOIC-4 1 Channel 3750 Vrms Phototransistor 195 % 710 % 50 mA 1.4 V 80 V 50 mA 300 mV 2.5 us 7.5 us 7 V 290 mW - 55 C + 125 C ISOM8113 Reel, Cut Tape