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OP7821 Solid State Relay Module
- Sylvain Ménard
The OP7821 provides 16 isolated solid-state relay outputs that can operate up to 250V in both AC and DC configuration.
Channel Description
Each isolated output is a single-pole normally-open solid-state relay with an integrated current-limiting feature that can replace electromechanical relays while enhancing the robustness of wireline-interface applications.
The electrical circuit also implements thermal shutdown.
The dynamic characteristics and current limits of the channel are as follows:
| Parameter | Conditions | Symbol | Min | Typ | Max | Units |
|---|---|---|---|---|---|---|
| Switching speeds | ||||||
| Turn on |
| ton | - | 0.30 | 2 | ms |
| Turn off | toff | 0.16 | ||||
| Current Limit | ||||||
| AC/DC configuration |
| ILMT | 300 | 366 | 450 | mAp |
| DC configuration |
Face Plate
The OP7821 faceplate holds one DB37F connector.
DB37F Pin Assignments
The connector respects OPAL-RT standard DB37 pinout.
Specifications
| Product name | OP7821 |
|---|---|
| Part number | 126-0458 |
| Product type | OP7821 solid state relay |
| Connector type | DB37F |
| Isolation Voltage | 3750Vrms (between simulator and user equipment) |
| Dimensions | 18.8 x 16.4 cm (7.4 in x 6.46 in) |
| Operating temperature | 10 to 40 ºC (50 to 104ºF) |
| Storage temperature | -55 to 85ºC (-67 to 185ºF) |
| Relative humidity | 10 to 90%, non-condensing |
| Maximum altitude | 2,000 m (6562 ft.) |
OPAL-RT TECHNOLOGIES, Inc. | 1751, rue Richardson, bureau 1060 | Montréal, Québec Canada H3K 1G6 | opal-rt.com | +1 514-935-2323
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