| PartNumber | 187B20 | 187B28 | 187B24 |
| Description | Power Transformers Single Primary 115V 6VA, 20V CT @0.3A | Power Transformers Single Primary 115V 5.6VA, 28V CT @0.2A | Power Transformers Single Primary 115V 6VA, 24V CT @0.25A |
| Manufacturer | Hammond | Hammond Manufacturing | Hammond Manufacturing |
| Product Category | Power Transformers | Power Transformers | Power Transformers |
| RoHS | Y | - | - |
| Product | Transformer | - | - |
| Primary Voltage Rating | 115 VAC | - | - |
| Secondary Voltage Rating | 20 VAC CT | - | - |
| Power Rating | 6 VA | - | - |
| Secondary Current Rating | 300 mA | - | - |
| Mounting Style | Chassis | - | - |
| Primary Winding | Single Primary Winding | - | - |
| Secondary Winding | Single Secondary Winding | - | - |
| Length | 60.2 mm | - | - |
| Width | 31.75 mm | - | - |
| Height | 34.79 mm | - | - |
| Series | 186-187 | 187 | 187 |
| Operating Frequency | 50 Hz, 60 Hz | - | - |
| Termination Style | Quick Connects | Solder, Quick Connect | Solder, Quick Connect |
| Type | Low Voltage, Connect Terminals | Laminated Core | Laminated Core |
| Brand | Hammond Manufacturing | - | - |
| Product Type | Power Transformers | - | - |
| Factory Pack Quantity | 1 | - | - |
| Subcategory | Transformers | - | - |
| Unit Weight | 7.199994 oz | - | - |
| Mounting Type | - | Chassis Mount | Chassis Mount |
| Size Dimension | - | 60.20mm L x 41.28mm W | 60.20mm L x 41.28mm W |
| Current Output Max | - | 200mA | 250mA |
| Power Max | - | 5.6 VA | 6 VA |
| Voltage Isolation | - | 2000Vrms | 2000Vrms |
| Height Seated Max | - | 34.80mm | 34.80mm |
| Voltage Primary | - | 115V | 115V |
| Voltage Secondary Full Load | - | 28V | 24V |
| Primary Winding s | - | Single | Single |
| Secondary Winding s | - | Single | Single |
| Center Tap | - | Yes | Yes |