Opto-Isolator Board: 4 Channels, Protected Outputs
- Four channels of optical isolation with open-drain outputs
- Non-inverting output and inverting output for each channel
- LEDs provide visual indication for each signal and power
- Wide operating voltage range (3.3V to 24V)
- Suitable for signals from 3.3V logic up to 24V logic
- Buffered output stage for higher current sink capability
- Output stage includes current limit and thermal limit features
- Includes reverse-polarity protection on inputs and outputs
- Redundant power and ground terminal-block connections
- Mounting Options: Rubber Feet, Panel, or DIN Rail
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General Description
The OPI104 provides four channels of optical isolation with both a non-inverting output and an inverting output for each channel. Both the input side and the output side are designed to interface with equipment using logic voltages of anywhere from 3.3V to 24V. This robust design includes protected low-side output drivers that provide significant sink current capability. Reverse-polarity protection on inputs and outputs is also included.
This board includes terminal blocks to provide convenient access to the signals.
Click image to enlarge.Applications
- Electrical Isolation
- Interface between equipment with different grounds
- Interface between equipment with different logic levels
- Low-side driver for small DC loads (motors, solenoids, bulbs, etc)
- Driving a load that could be subjected to fault conditions (e.g., overcurrent, short to supply)
An opto-isolator is sometimes referred to as a "photocoupler", "optical coupler", "optocoupler", "opto coupler", or "optical isolator".
Product Documents
| Part # | Description | Data Sheet |
|---|---|---|
| OPI104-x | 4-Channel opto-isolator board datasheet | 
|
Mounting Options
These products are available in two different mounting variants. Product numbers ending with -DIN come with DIN clips already installed and ready to snap onto 35mm or 32mm DIN rail. Product numbers ending with -FT have stick-on rubber feet installed on the bottom side, allowing for benchtop use or panel mounting. For panel mounting, we suggest 1/4" nylon standoffs under the mounting holes, and #6 screws.
OPI104-DIN
Click image to enlarge. Rail not included
OPI104-FT
Click image to enlarge.Product Details
- Four channels of optical isolation with open-drain outputs
- Non-inverting output and inverting output for each channel
- LEDs provide visual indication for each signal and power
- Wide operating voltage range (3.3V to 24V)
- Suitable for signals from 3.3V logic up to 24V logic
- Buffered output stage for higher current sink capability
- Output stage includes current limit and thermal limit features
- Includes reverse-polarity protection on inputs and outputs
- Redundant power and ground terminal-block connections
- Approximate dimensions: 3.5" x 3.5"
- Mounting Options: Rubber Feet, Panel, or DIN Rail
Pricing and Ordering
| Description | 1+ | 10+ | RoHS | Buy Now | |
|---|---|---|---|---|---|
| Opto-isolator Board, Protected Outputs, 4 Channels, Feet | $48.00 | $45.00 | Yes | ||
| Opto-isolator Board, Protected Outputs, 4 Channels, Feet | $46.50 | $43.50 | Yes |
| Quantity | Price |
|---|---|
| 1+ | $48.00 |
| 10+ | $45.00 |
| Quantity | Price |
|---|---|
| 1+ | $46.50 |
| 10+ | $43.50 |
All of the above items are normally stocked. Please call us if you need to verify availability for a specific quantity, or for pricing at higher quantities. Please visit our ordering page for our ordering policies and a list of ordering methods.