4N26-X017T

Output Type:	Transistor with Base
Base Part Number:	4N26
Supplier Device Package:	6-SMD
Package / Case:	6-SMD, Gull Wing
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 100°C
Vce Saturation (Max):	500mV
Current - DC Forward (If) (Max):	60mA
Voltage - Forward (Vf) (Typ):	1.36V
Current - Output / Channel:	50mA
Voltage - Output (Max):	70V
Series:	--
Input Type:	DC
Rise / Fall Time (Typ):	2µs, 2µs
Turn On / Turn Off Time (Typ):	--
Current Transfer Ratio (Max):	--
Current Transfer Ratio (Min):	20% @ 10mA
Voltage - Isolation:	5000Vrms
Number of Channels:	1
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Optoisolators - Transistor, Photovoltaic Output: 4N26-X017T Application Field and Working Principle

Optoisolators, otherwise known as optocouplers and photocouplers, are electrical components used to transfer signals between different electric circuits while keeping them electrically separated. An optoisolator contains at least one light emitting device and one receiving device, thus achieving successful isolation between two circuits. As a type of optoisolator, the 4N26-X017T Transistor, Photovoltaic Output optoisolator provides isolation up to 2500V of direct electrical potential. It is widely used in AC-DC or DC-DC electronic communication, high voltage generating systems, high voltage protection, industrial automation systems, etc.In general, the 4N26-X017T consists of two parts: the LED and the photodiode. The LED emits light while being triggered by an electric signal. The photodiode then captures the light, converting it into an electric signal, allowing it to transmit the usual DC or AC signals. The light signal emitted from the LED needs to travel through an isolation layer in order to reach the photodiode. In 4N26-X017T optoisolator, the width of the isolation layer can reach up to 2500V and provide the highest grade of electrical isolation. The 4N26-X017T features a high-speed response time, fast switching, and a low-current operation. Its maximum current can reach 5mA, while its reaction time is 0.1 microseconds. This allows 4N26-X017T to easily transmit 0–20kHz frequencies. Its LED can be driven by a DC or AC signal of 3.0 V continuous forward current. It also has linear characteristics, along with a wide operating temperature range and an excellent temperature stability. 4N26-X017T is widely used in a variety of applications, ranging from switch power sources to programmable logic controllers. In terms of its working principle, the 4N26-X017T optoisolator works by mirroring the signal. When an input signal is applied to the LED, a current will flow through it and light will be emitted. The light will then pass through the isolation layer and get picked up by the photodiode, which will convert it into a corresponding electrical signal. The output electrical signal, which will then become the input signal of the photodiode, is usually amplified and/or inverted in order to mimic the original input signal. This type of optoisolator works with both AC and DC signals, and it is often used to isolate any noise or interference in communication systems. The 4N26-X017T is capable of protecting against overload and transient spikes up to 2500V. Overall, the 4N26-X017T Transistor, Photovoltaic Output optoisolator is designed for numerous industrial automation applications, including switch power sources and programmable logic controllers. It has a high-speed response time, fast switching capability, low-current operation, and a wide isolation layer. Moreover, its linear characteristics, wide operating temperature range, and excellent temperature stability make it suitable for numerous electronic communication and high voltage applications.

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