1
5 pack of reliable relay modules.
Compatible with Arduino and other microcontrollers.
Supports 3V and 3.3V power supply.
Optocoupler isolation for safe operation.
Handles 10A at 250VAC and 30VDC.
Easy to integrate into projects.
High-level trigger for simple control.
Average Rating out of 5:
Price Range: $9.99
Material: Silver
2
High-quality BOJACK PC817 optocoupler.
4-pin DIP-4 with 2.54mm pitch.
Pack of 50 pcs for bulk usage.
Durable resealable plastic storage box included.
Ideal for computer terminals and measuring instruments.
Widely used in household appliances and photocopiers.
Phototransistor output type for reliable performance.
Average Rating out of 5:
Price Range: $7.99
3
50 pieces of PC817 optocouplers included.
High transfer ratio: 50% to 600%.
Isolation voltage of 5000Vrms for safety.
4-pin DIP package design for easy installation.
Compatible with EL817C, LTV817C, and FL817C.
Ideal for Arduino and DIY projects.
Packed in a resealable plastic bag for convenience.
Average Rating out of 5:
Price Range: $7.99
Color: Black
4
4-channel optocoupler for effective isolation.
Supports voltage conversion from 3.6V to 30V.
Strong anti-interference capability for reliable operation.
Drives high-power triodes and MOSFETs.
Compatible with low-power 24V relays.
Independent channels for simultaneous voltage control.
Limit pulse signals to below 4kHz.
Average Rating out of 5:
Price Range: $9.99
Color: 4CH Optocoupler
5
High-speed logic output for reliable performance.
Pack of 10 for convenient bulk usage.
Compatible with various electronic applications.
Long service life ensures durability and reliability.
Easy storage with humanized packaging design.
Printed markings for effortless identification.
Reverse voltage rating of 3V for safety.
Average Rating out of 5:
Price Range: $9.99
6
1-Channel PC817 optocoupler for effective isolation.
5.0 pitch screw terminals for easy wiring.
Protects microcontroller from interference and damage.
High-voltage detection for safer operations.
Input signal voltage: 3-5V, 12V, or 24V.
Wide output voltage range: DC1.8 - 24V.
Amplifies output current for driving circuits.
Average Rating out of 5:
Price Range: $6.99
Material: Copper Alloy Or Silver Alloy
7
10 pcs of optocoupler isolation modules included.
1-channel design for simple applications.
12V voltage rating for versatile use.
5.0 pitch screw terminals for easy wiring.
Ideal for NPN-PNP and PNP-NPN level conversion.
Protects MCU circuits from interference effectively.
Perfect for driving motors and inductive loads.
Average Rating out of 5:
Price Range: $8.99
Material: Copper
8
8pcs PC817 optocoupler isolation modules included.
Supports 3.6-30V output voltage range.
Isolates control signal for safe operation.
Drive signal voltage: 3.6-24V input.
Can control different voltages simultaneously.
Jumper cap for high/low output selection.
Not suitable for signals over 3KHZ.
Average Rating out of 5:
Price Range: $9.99
9
Detects 220V AC voltage efficiently.
Compatible with 3-5V or 24V PLC power.
Available in one, three, or eight channels.
Isolation module for enhanced safety.
Easy integration with PLC and MCU systems.
Reliable performance for various applications.
Compact design for space-saving installations.
Average Rating out of 5:
Price Range: $12.99
10
3pcs TLP281 isolation modules included for convenience.
Compact PCB size: 25mm x 26mm.
Connects low-voltage systems to high-voltage safely.
Inverts logic signal for reliable communication.
Ideal for noisy environments and high-voltage applications.
Compatible with 3.3V and 5V microcontrollers.
Enhances digital system flexibility and protection.
Average Rating out of 5:
Price Range: $7.69
11
High-quality VTL5C DIP-4 opto-couplers included.
Package contains 5 units for convenience.
Ideal for audio applications and Vactrol circuits.
Environmentally friendly and easy to install.
Fixed strip lengths for consistent performance.
100% brand new from reliable manufacturer.
Compatible with VTL5C1, VTL5C2, and VTL5C3 models.
Average Rating out of 5:
Price Range: $8.99
12
Detects 220V AC power presence or absence.
Outputs TTL level for microcontroller compatibility.
NPN output stabilizes high and low levels.
LED indicator shows detecting status visually.
Compatible with DC power supplies from 3V to 24V.
Can connect to PLC 24V levels easily.
Compact design for easy integration into projects.
Average Rating out of 5:
Price Range: $9.95
13
10PCS VTL5C opto-couplers included in package.
Ideal for audio applications and signal isolation.
Linear optocoupler design for better performance.
Photoconductive cells for improved response time.
Easy installation with fixed strip lengths.
100% new components, manufactured in China.
Environmentally friendly materials used in production.
Average Rating out of 5:
Price Range: $16.98
14
50 pcs of PC817 optocoupler included.
4-pin DIP package for easy integration.
2.54 mm pin spacing for compatibility.
Phototransistor output for reliable performance.
Versatile applications in various electronic devices.
Ideal for automation and measurement systems.
Perfect for hobbyists and professionals alike.
Average Rating out of 5:
Price Range: $5.98
Color: Black
15
6pcs PC817 optocoupler isolation modules included.
Compatible with DC 3V-5V/12V/24V input signals.
Output voltage ranges from DC 1.8V to 24V.
Ideal for driving motors and inductive components.
Provides signal isolation for MCU protection.
Easy wiring with 5.0 pitch screw terminals.
Supports NPN-PNP and PNP-NPN level conversion.
Average Rating out of 5:
Price Range: $9.99
16
8-channel design for versatile signal isolation.
Converts 24V signals to 3.3V safely.
Supports PNP and NPN signal conversions.
High conversion frequency up to 20KHz.
Compact size: 85*98*18mm for easy integration.
Ideal for MCUs and PLC applications.
Reliable after-sales service for customer satisfaction.
Average Rating out of 5:
Price Range: $20.99
Color: Blue
17
8-channel PC817 optocoupler isolation board.
Controls multiple voltages simultaneously.
Input voltage: 3.6-24V; Output: 3.6-30V.
Supports low voltage to high voltage conversion.
Strong photoelectric isolation and anti-interference ability.
Drives high-power devices like triodes and MOSFETs.
Limit of 4KHZ for pulse signal applications.
Average Rating out of 5:
Price Range: $9.99
18
High-speed performance up to 100 kBd.
Low input current requirement of 0.5mA.
High output current capability of 60mA.
Excellent common mode noise rejection.
Impressive current transfer ratio of 2000%.
8-pin design for easy integration.
Reliable under specified operating conditions.
Average Rating out of 5:
Price Range: $8.69
19
Includes 5 pieces of VTL5C3 opto-couplers.
Single channel for efficient signal transmission.
Pure resistive material for reliable performance.
Non-polar output simplifies circuit design.
Compatible with both DC and AC applications.
Excellent isolation between output and input.
Low distortion for high-quality signal coupling.
Average Rating out of 5:
Price Range: $9.99
Material: Plastic
20
8 pieces of 2-channel isolation modules.
Voltage range: 3.6V to 30V.
Control 3.3V or 5V signals effectively.
Strong anti-interference with photoelectric isolation.
Drives high voltage components easily.
Independent channels for different voltage control.
Not suitable for signals over 4kHz.
Average Rating out of 5:
Price Range: $9.99
Material: Copper
21
Pack of 10 for convenient bulk purchasing.
High-performance 6N138 optocoupler for reliable isolation.
Darlington output configuration for enhanced signal integrity.
Through-hole mounting for easy installation.
Maximum power dissipation of 100 mW.
Minimum isolation voltage of 2500Vrms for safety.
Compact 8-pin plastic DIP design for space efficiency.
Average Rating out of 5:
Price Range: $13.80
22
8-channel relay module for versatile applications.
Supports high and low-level triggering modes.
Opto-isolated design for enhanced safety and reliability.
Maximum load: AC 250V / 10A, DC 30V / 10A.
Compatible with 5V, 12V, and 24V power supplies.
Easy to configure with jumper cap settings.
Includes manufacturer's one-year warranty for assurance.
Average Rating out of 5:
Price Range: $6.99
Material: Silver
23
8-channel optocoupler isolation for versatile applications.
Independent channels for simultaneous voltage control.
Jumper-configurable output options for flexibility.
Compatible with 3.6V to 24V control voltages.
Strong interference immunity for reliable operation.
Drives high-power transistors and MOSFETs effectively.
Durable PCB for enhanced reliability and interchangeability.
Price Range: $8.04
Material: Copper
24
4-channel isolation for simultaneous voltage control.
Supports 3.6V to 30V output voltage range.
Ideal for microcontroller or device interface applications.
Jumper cap for high or low output selection.
Maximum output current: 10mA per channel.
Limit of 3KHz for pulse signal applications.
Versatile module for various voltage isolation needs.
Average Rating out of 5:
Price Range: $9.99
