Products
Audiohm Optocouplers
Advanced Photonix Canada, Inc.'s Audiohm optocouplers are ideally suited for high performance audio circuits. Most "design-ins" have demonstrated proven performance benefits over silicon based audio control devices such as VCAs and FETs.
The Audiohm optocoupler is a very cost-effective way to improve the performance of your audio equipment.
Audiohm optocouplers are manufactured using a photocell as the output and an LED as the input. By varying the chemistry of the photocell layer and the electrode pattern, Advanced Photonix Canada, Inc. makes photocells with various characteristics. By matching the LED and photocell characteristics, couplers are produced with different breakdown voltages, resistance and response times.
Advanced Photonix Canada, Inc. supplies a number of standard parts. We can also fine tune (by selection) the individual performance of a device for a specific application.
The correct selection of an optocoupler depends on the application parameters that the designer requires.
In determining the most appropriate product, one must include the following in the analysis:
- Digital or Analog Mode of Operation
- Is distortion an issue?
- New design or replacement device
- Ideal performance specification in terms of speed and resistance range
The Technical Reference section of this website shows how these design factors are applied in actual applications.
| Product Datasheet (.pdf file) | LED Current (mA) | Resistance Max. on (Ohms) | Resistance Min. Dark (Ohms) | Maximum Photocell Ratings | |
| Voltage (V) | Power Dissipation (mW) | ||||
| NSL-26 | 16 | 2000 | 10M |
120
|
200
|
| NSL-28 | 16 | 400 | 10M |
100
|
50
|
| NSL-28AA | 16 | 2500 | 1M |
100
|
50
|
| NSL-32 | 16 | 500 | 500K |
60
|
50
|
| NSL-32AA | 16 | 10K | 10M |
60
|
50
|
| NSL-32B-101 | 1 | 750 | 500K |
60
|
50
|
| NSL-32B-102 | 1 | 960 | 500K |
60
|
50
|
| NSL-32B-103 | 1 | 1650 | 500K |
60
|
50
|
| NSL-32B-104 | 1 | 2800 | 500K |
60
|
50
|
| NSL-32H-101 | 1 | 750 | 500K |
60
|
50
|
| NSL-32H-102 | 1 | 960 | 500K |
60
|
50
|
| NSL-32H-103 | 1 | 1650 | 500K |
60
|
50
|
| NSL-32H-104 | 1 | 2800 | 500K |
60
|
50
|
| NSL-32SR2 | 20 | 40 | 1M |
60
|
50
|
| NSL-32SR2S | 20 | 40 typ | 1M |
60
|
50
|
| NSL-32SR3 | 20 | 60 | 25M |
60
|
50
|
| NSL-32SR3S | 20 | 60 typ | 25M |
60
|
50
|
| NSL-37-V5C1 | 175 | 2000 | 50M |
100
|
175
|
Maximum LED IF = 40mA.
Dark Resistance measured 10 seconds after removal of LED Current.
Power Dissipation measured with Power rating at 25 °C derated linearly to 75 °C.
Dual element components matched to ±25%
Data sheets describing individual products or families of related products are available. The copy on this WWW site is the most up-to-date version.
