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Optocouplers with transistor and diode output

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4N25, Optocoupler with transistor output (with base), 1-channel, 70V, 0.05A, 5kV, 20%(min) [DIP-6.] 217 pcs. Brand: Vishay Number of channels: 1 Isolation voltage (RMS), V: 5000 Current transfer ratio (Min),%: 20 Turn-on time (Typ), us: 11.7 Turn-off time (Typ), us: 7 Input type: DC Output type: Transistor with base Output voltage, V: 70 Output current per channel, mA: 50 Operating temperature, ° C: -55…+100 Housing: DIP-6	quick view	217 pcs.	334 ֏ 209 ֏ ×	from 20 pcs. — 177 ֏
CNY17-3, Optocoupler with transistor output, CTR=100...200% [DIP-6.] 533 pcs. Brand: Vishay Number of channels: 1 Isolation voltage (RMS), V: 5000 Current transfer ratio (Min),%: 100 Current transfer ratio (Max),%: 200 Turn-on time (Typ), us: 3 Turn-off time (Typ), us: 2.3 Input type: DC Output type: Transistor with base Output voltage, V: 70 Output current per channel, mA: 50 Operating temperature, ° C: -55…+110 Housing: DIP-6	quick view	533 pcs.	264 ֏ ×	from 20 pcs. — 222 ֏
CNY74-2H, Optocoupler with transistor output [DIP-8.] (=AOT101 AC,BS) 1622 pcs. Brand: Vishay Number of channels: 2 Isolation voltage (RMS), V: 5300 Current transfer ratio (Min),%: 50 Current transfer ratio (Max),%: 600 Turn-on time (Typ), us: 6 Turn-off time (Typ), us: 5 Input type: DC Output type: Transistor Output voltage, V: 70 Operating temperature, ° C: -55…+100 Housing: DIP-8	quick view	1622 pcs.	435 ֏ ×	from 20 pcs. — 423 ֏
EL817, Optoisolator 5kV, Transistor Optocoupler [DIP-4] 985 pcs. Brand: Everlight Number of channels: 1 Isolation voltage (RMS), V: 5000 Current transfer ratio (Min),%: 50 Current transfer ratio (Max),%: 600 Input type: DC Output type: Transistor Output voltage, V: 35 Output current per channel, mA: 50 Operating temperature, ° C: -55…+110 Housing: DIP-4	quick view	985 pcs.	219 ֏ 156 ֏ ×	from 20 pcs. — 146 ֏
FOD814 (PC814), Transistor optocoupler (= H11AA814A), [DIP-4] 3729 pcs. Brand: ON Semiconductor Number of channels: 1 Isolation voltage (RMS), V: 5000 Current transfer ratio (Min),%: 20 Current transfer ratio (Max),%: 300 Input type: AC, DC Output type: Transistor Output voltage, V: 70 Output current per channel, mA: 50 Operating temperature, ° C: -55…+105 Housing: DIP-4	quick view	3729 pcs.	479 ֏ 282 ֏ ×	from 20 pcs. — 242 ֏
FOD817B (PC817B) Optocoupler with transistor output [DIP-4] 1268 pcs. Brand: ON Semiconductor Number of channels: 1 Isolation voltage (RMS), V: 5000 Current transfer ratio (Min),%: 130 Current transfer ratio (Max),%: 260 Input type: DC Output type: Transistor Output voltage, V: 70 Output current per channel, mA: 50 Operating temperature, ° C: -55…+110 Housing: DIP-4	quick view	1268 pcs.	425 ֏ 209 ֏ ×	from 20 pcs. — 181 ֏
FOD817C, Optocoupler with transistor output [DIP-4] (=PC817C] 957 pcs. Brand: ON Semiconductor Number of channels: 1 Isolation voltage (RMS), V: 5000 Current transfer ratio (Min),%: 200 Current transfer ratio (Max),%: 400 Input type: DC Output type: Transistor Output voltage, V: 70 Output current per channel, mA: 50 Operating temperature, ° C: -55…+110 Housing: DIP-4	quick view	957 pcs.	261 ֏ 217 ֏ ×	from 20 pcs. — 196 ֏
HCPL0701, Optocoupler, Low Input Current, High Gain, Transistor Output (Composite Transistor) 439 pcs. Brand: ON Semiconductor Number of channels: 1 Isolation voltage (RMS), V: 2500 Current transfer ratio (Min),%: 500 Current transfer ratio (Max),%: 2600 Turn-on time (Typ), us: 1 Turn-off time (Typ), us: 7 Input type: DC Output type: Transistor (Darlington)with the base Output voltage, V: 18 Output current per channel, mA: 60 Operating temperature, ° C: -40…+85 Housing: SO-8 Tall	quick view	439 pcs.	1 100 ֏ 940 ֏ ×	from 3 pcs. — 910 ֏
HCPL2531M, Dual-channel high-speed 1Mbps optocoupler with transistor output [DIP-8] 984 pcs. Brand: ON Semiconductor Number of channels: 2 Isolation voltage (RMS), V: 2500 Current transfer ratio (Min),%: 19 Current transfer ratio (Max),%: 50 Turn-on time (Typ), us: 0.45 Turn-off time (Typ), us: 0.5 Input type: DC Output type: Transistor Output voltage, V: 20 Output current per channel, mA: 8 Operating temperature, ° C: -55…+100 Housing: DIP-8	quick view	984 pcs.	1 460 ֏ 870 ֏ ×	from 5 pcs. — 810 ֏
ILD207T, Optocoupler with transistor output, 2-channel, U insulation=4kV, 70V, CTR=100...200% [SO-8.] 2425 pcs. Brand: Vishay Number of channels: 2 Isolation voltage (RMS), V: 4000 Current transfer ratio (Min),%: 100 Current transfer ratio (Max),%: 200 Turn-on time (Typ), us: 6 Turn-off time (Typ), us: 5 Input type: DC Output type: Transistor Output voltage, V: 70 Operating temperature, ° C: -55…+100 Housing: SO-8 Tall	quick view	2425 pcs.	274 ֏ ×	from 20 pcs. — 232 ֏
K1010C (KP1010C), Transistor Optocoupler [DIP-4] 1414 pcs. Brand: Cosmo Number of channels: 1 Isolation voltage (RMS), V: 5000 Current transfer ratio (Min),%: 200 Current transfer ratio (Max),%: 400 Input type: DC Output type: Transistor Output voltage, V: 80 Output current per channel, mA: 50 Operating temperature, ° C: -55…+115 Housing: DIP-4	quick view	1414 pcs.	194 ֏ 114 ֏ ×
KPC357NT0CTLD, Transistor optocoupler [SO-4] 4779 pcs. Brand: Cosmo Number of channels: 1 Isolation voltage (RMS), V: 3750 Current transfer ratio (Min),%: 200 Current transfer ratio (Max),%: 400 Input type: DC Output type: Transistor Output voltage, V: 80 Output current per channel, mA: 50 Operating temperature, ° C: -55…+110 Housing: SOP-4	quick view	4779 pcs.	149 ֏ ×
LTV-814, Transistor Optocoupler [DIP-4] 1144 pcs. Brand: Lite-on Electronics Number of channels: 1 Isolation voltage (RMS), V: 5000 Current transfer ratio (Min),%: 20 Current transfer ratio (Max),%: 300 Input type: AC, DC Output type: Transistor Output voltage, V: 35 Output current per channel, mA: 50 Operating temperature, ° C: -30…+110 Housing: DIP-4	quick view	1144 pcs.	261 ֏ 164 ֏ ×	from 20 pcs. — 146 ֏
LTV-817-A, Transistor Optocoupler [DIP-4] 926 pcs. Brand: Lite-on Electronics Number of channels: 1 Isolation voltage (RMS), V: 5000 Current transfer ratio (Min),%: 80 Current transfer ratio (Max),%: 180 Input type: DC Output type: Transistor Output voltage, V: 35 Output current per channel, mA: 50 Operating temperature, ° C: -30…+110 Housing: DIP-4	quick view	926 pcs.	194 ֏ 106 ֏ ×	from 20 pcs. — 81 ֏
LTV-817-B, Transistor Optocoupler [DIP-4] 1602 pcs. Brand: Lite-on Electronics Number of channels: 1 Isolation voltage (RMS), V: 5000 Current transfer ratio (Min),%: 130 Current transfer ratio (Max),%: 260 Input type: DC Output type: Transistor Output voltage, V: 35 Output current per channel, mA: 50 Operating temperature, ° C: -30…+110 Housing: DIP-4	quick view	1602 pcs.	49 ֏ 40 ֏ ×	from 100 pcs. — 36 ֏
LTV-817-C, Transistor Optocoupler [DIP-4] 7001 pcs. Brand: Lite-on Electronics Number of channels: 1 Isolation voltage (RMS), V: 5000 Current transfer ratio (Min),%: 200 Current transfer ratio (Max),%: 400 Input type: DC Output type: Transistor Output voltage, V: 35 Output current per channel, mA: 50 Operating temperature, ° C: -30…+110 Housing: DIP-4	quick view	7001 pcs.	79 ֏ 63 ֏ ×	from 100 pcs. — 51 ֏
LTV-817S-TA1-C, Transistor optocoupler, (=PC817), [SMD-4] 12754 pcs. Brand: Lite-on Electronics Number of channels: 1 Isolation voltage (RMS), V: 5000 Current transfer ratio (Min),%: 200 Current transfer ratio (Max),%: 400 Input type: DC Output type: Transistor Output voltage, V: 35 Output current per channel, mA: 50 Operating temperature, ° C: -30…+110 Housing: SMD-4	quick view	12754 pcs.	109 ֏ ×	from 20 pcs. — 91 ֏
MOCD207M, Optocoupler TRANS-OUT 2CH, [SOIC-8] 929 pcs. Brand: ON Semiconductor Number of channels: 2 Isolation voltage (RMS), V: 2500 Current transfer ratio (Min),%: 100 Current transfer ratio (Max),%: 200 Turn-on time (Typ), us: 7.5 Turn-off time (Typ), us: 5.7 Input type: DC Output type: Transistor Output voltage, V: 70 Output current per channel, mA: 150 Operating temperature, ° C: -40…+100 Housing: SO-8 Tall	quick view	929 pcs.	970 ֏ 468 ֏ ×	from 20 pcs. — 403 ֏
PC123, Transistor Optocoupler [DIP-4] 447 pcs. Brand: Sharp Number of channels: 1 Isolation voltage (RMS), V: 5000 Input type: DC Output type: Transistor Output voltage, V: 70 Output current per channel, mA: 50 Operating temperature, ° C: -30…+100 Housing: DIP-4	quick view	447 pcs.	209 ֏ ×	from 20 pcs. — 186 ֏
PC3H7J00000F, Transistor Optocoupler [SOP-4] 838 pcs. Brand: China Number of channels: 1 Isolation voltage (RMS), V: 2500 Current transfer ratio (Min),%: 20 Current transfer ratio (Max),%: 400 Input type: DC Output type: Transistor Output voltage, V: 80 Operating temperature, ° C: -30…+100 Housing: MiniFlat-4, 1.27mm	quick view	838 pcs.	730 ֏ 252 ֏ ×	from 20 pcs. — 222 ֏

Optocouplers with transistor and diode outputs provide perfect galvanic isolation, therefore they are an indispensable component in modern electronics. Their key task is to disconnect the circuits by transmitting a signal between them using light (creating a reliable "optical barrier"). Inside the sealed case there are two main elements: a emitting LED and a receiver - a phototransistor or photodiode. They protect against high voltages and interference, and increase the reliability of industrial and energy systems.

Varieties of optocouplers

The product range is divided according to the type of output stage:

Transistor optocouplers (PC817, TLP621, 4N25) are a universal solution for isolating slow analog signals. Their key parameter is the current transfer coefficient (CTR), usually 20-600%.
Optocouplers with Darlington output (4N32). They have an ultra-high CTR to manage a heavy load.
High-speed optocouplers with diode output (6N136, HCPL-0701). They provide digital signal transmission at speeds up to 20 Mbit/s for RS-485 and CAN interfaces.

How to choose the right optocoupler

Transistor models are ordered for galvanic isolation of microcontroller circuits from power switches. High-speed modifications are used for isolation in pulsed PSUs or high-speed interfaces. Optocouplers with a high CMR are purchased to work in interference conditions.

Important selection criteria:

The transfer rate. Must exceed the frequency of the signal. Using a slow optocoupler for fast interfaces will cause distortion.
The type of output. Determines the possibility of direct connection of the load (transistor) or the need for an additional circuit (diode).
Insulation voltage. It must correspond to the maximum potential difference between the circuits.

Incorrect selection or installation leads to malfunction. Common mistakes:

Speed Mismatch - Using a slow optocoupler (PC817) for 1 Mbit/s transmission causes signal loss.
Ignoring the load - buying a model with too low a CTR to control the relay causes uncertain operation and heating.
Lack of input protection - connecting an LED without a current-limiting resistor causes it to burn out.
Interference neglect - Using a conventional optocoupler in a noisy environment without high CMR causes false alarms.

The CHIP and DIP online store offers a wide range of optocouplers with transistor and diode outputs. Direct deliveries from the manufacturer - protection against counterfeiting. Our experts are ready to help you select the product for your needs, price preferences and safety requirements. Delivery is carried out in Moscow and throughout Russia.

You can receive an order at our office and pick-up point in Yerevan. Delivery of goods is carried out throughout Armenia by courier and Haypost.
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Products from the group «Optocouplers with transistor and diode output» you can buy wholesale and retail.

Optocouplers with transistor and diode output

Varieties of optocouplers

How to choose the right optocoupler

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