Optocoupler AC-IN 1-CH Transistor DC-OUT 4-Pin PDIP SFH620A is an Optocoupler that has two parts i.e., two GaAs Infrared emitting diodes and a phototransistor,
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Feb 8, 2022
Hiram Will
Optocoupler AC-IN 1-CH Transistor DC-OUT 4-Pin PDIP
SFH620A is an Optocoupler that has two parts i.e., two GaAs Infrared emitting diodes and a phototransistor, which functions by sensing the infrared light. This article will cover its pinout, datasheet, application, circuit and more details about SFH620A.
SFH620A-3
The SFH620A (DIP) features a high current transfer ratio, low coupling capacitance and high isolation voltage. These couplers have a GaAs infrared diode emitter, which is optically coupled to a silicon planar phototransistor detector and is incorporated in a plastic DIP-4 or SMD package.
The coupling devices are designed for signal transmission between two electrically separated circuits. The couplers are end-stackable with 2.54 mm lead spacing. Creepage and clearance distances of > 8 mm are achieved with option 6. This version complies with IEC 6 0950 (DIN VDE 0805 ) for reinforced insulation to an operation the voltage of 4 00 VRMS or DC.
• Good CTR linearity depending on forward current
• Isolation test voltage, 5300 VRMS
• High collector-emitter voltage, VCEO = 70 V
• Low saturation voltage
• Fast switching times
• Low CTR degradation
• Temperature stable
• Low coupling capacitance
• End-stackable, 0.100" (2.54 mm) spacing
• High common-mode interference immunity
AC/DC Switching Circuits
Signal Isolator Circuits
Analog Current Detection
Power Control
The alternatives for SFH620A
PC817
LTV817
The schematic given below is a switching circuit using SFH620A Optocoupler.
SFH620A Schematic
The input is applied to the LEDs, which are the initial portion of the optocoupler. To limit the current through the LEDs, a resistor is connected in series with them. The phototransistor gain is controlled by the intensity of the infrared light emitted by them, which is controlled by the current. The higher the phototransistor gain, the lower the limiting resistance value. The phototransistor component receives the load. This is where the swapping begins.
If the phototransistor detects enough infrared energy to turn it, electricity will flow from the emitter to the collector. However, because the phototransistor is linked to a pull-up resistor, the output state will be low, i.e. 5 volts will be stepped down to 0 and an LED attached as a load will not glow. If the phototransistor detects no radiation, it conducts no current and the output state is high. Let's imagine there's an LED attached to the output state, which will light up.
Vishay’s product portfolio is an unmatched collection of discrete semiconductors (diodes, MOSFETs, and optoelectronics ) and passive components (resistors, inductors, and capacitors ). These components are used in virtually all types of electronic devices and equipment in the industrial, computing, automotive, consumer, telecommunications, military, aerospace, and medical markets. Vishay is proud to be a major partner with Digi-Key.
Vishay Semiconductor Opto Division SFH620A-3 technical specifications, attributes, parameters and parts with similar specifications to Vishay Semiconductor Opto Division SFH620A-3.
Vishay Semiconductor Opto Division SFH620A-3 technical specifications, attributes, parameters and parts with similar specifications to Vishay Semiconductor Opto Division SFH620A-3.
| Product Attribute | Attribute Value | |
|---|---|---|
| Factory Lead Time | 15 Weeks | |
| Contact Plating | Tin | |
| Mount | Through Hole | |
| Mounting Type | Through Hole | |
| Package / Case | 4-DIP (0.300, 7.62mm) | |
| Number of Pins | 4Pins | |
| Supplier Device Package | 4-DIP | |
| Collector-Emitter Breakdown Voltage | 70V | |
| Collector-Emitter Saturation Voltage | 400mV | |
| Current Transfer Ratio-Min | 100% @ 10mA | |
| Number of Elements | 1 Element | |
| Turn Off Delay Time | 2.3 μs | |
| Operating Temperature | -55°C~100°C | |
| Packaging | Tube | |
| Published | 2014 | |
| Part Status | Active | |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | |
| Max Operating Temperature | 100°C |
| Product Attribute | Attribute Value | |
|---|---|---|
| Min Operating Temperature | -55°C | |
| Voltage - Rated DC | 1.25V | |
| Max Power Dissipation | 150mW | |
| Approval Agency | UL | |
| Voltage - Isolation | 5300Vrms | |
| Output Voltage | 70V | |
| Output Type | Transistor | |
| Number of Channels | 1Channel | |
| Voltage | 6V | |
| Power Dissipation | 250mW | |
| Voltage - Forward (Vf) (Typ) | 1.25V | |
| Input Type | AC, DC | |
| Turn On Delay Time | 3 μs | |
| Forward Current | 60mA | |
| Max Output Voltage | 70V | |
| Output Current per Channel | 50mA | |
| Rise Time | 2μs | |
| Forward Voltage | 1.25V |
| Product Attribute | Attribute Value | |
|---|---|---|
| Fall Time (Typ) | 2 μs | |
| Collector Emitter Voltage (VCEO) | 70V | |
| Max Collector Current | 100mA | |
| Rise / Fall Time (Typ) | 2μs 2μs | |
| Reverse Breakdown Voltage | 6V | |
| Max Input Current | 60mA | |
| Current - DC Forward (If) (Max) | 60mA | |
| Input Current | 60mA | |
| Current Transfer Ratio (Max) | 320% @ 10mA | |
| Turn On / Turn Off Time (Typ) | 3μs, 2.3μs | |
| Max Junction Temperature (Tj) | 100°C | |
| Vce Saturation (Max) | 400mV | |
| Ambient Temperature Range High | 100°C | |
| Height | 4.3mm | |
| REACH SVHC | No SVHC | |
| Radiation Hardening | No | |
| RoHS Status | ROHS3 Compliant | |
| Lead Free | Lead Free |
Download datasheets and manufacturer documentation for Vishay Semiconductor Opto Division SFH620A-3.
Download datasheets and manufacturer documentation for SFH620A-3
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