| PartNumber | 166L20 | 166L2 | 166L22 |
| Description | Power Transformers RECT FIL | Power Transformers FIL RECT | Power Transformers Open, Single Primary 115V 22CT 2A 44VA |
| Manufacturer | Hammond Manufacturing | Hammond Manufacturing | Hammond Manufacturing |
| Product Category | Power Transformers | Power Transformers | Power Transformers |
| Series | 166 | 166 | 166 |
| Product | Power Transformers | Power Transformers | - |
| Type | Laminated Core | Laminated Core | Laminated Core |
| Packaging | Bulk | Bulk | - |
| Unit Weight | 1.550 lbs | 11.200115 oz | - |
| Mounting Style | Chassis | Chassis | - |
| Termination Style | Wire Leads | Wire Leads | Wire Leads |
| Operating Temperature Range | 0 C to + 130 C | 0 C to + 130 C | - |
| Height | 58.7 mm | 35.1 mm | - |
| Length | 93.7 mm | 71.4 mm | - |
| Width | 47.8 mm | 38.1 mm | - |
| Mounting Type | Chassis Mount | Chassis Mount | Chassis Mount |
| Size Dimension | 93.73mm L x 47.75mm W | 71.38mm L x 38.10mm W | 93.73mm L x 54.10mm W |
| Current Output Max | 2A | 2.5A | 2A |
| Power Max | 40 VA | 6.25 VA | 44 VA |
| Voltage Isolation | 2000Vrms | 2000Vrms | 2000Vrms |
| Height Seated Max | 58.67mm | 42.93mm | 58.67mm |
| Voltage Primary | 115V | 115V | 115V |
| Voltage Secondary Full Load | 20V | 2.5V | 22V |
| Primary Winding s | Single | Single | Single |
| Secondary Winding s | Single | Single | Single |
| Center Tap | Yes | Yes | Yes |
| Power Rating | 40 VA | 6.25 VA | - |
| Primary Voltage Rating | 115 VAC | 115 VAC | - |
| Secondary Voltage Rating | 20 VAC CT | 2.5 VAC CT | - |
| Secondary Current Rating | 2 A | 2.5 A | - |
| Primary Winding | Single Primary Winding | Single Primary Winding | - |
| Secondary Winding | Single Secondary Winding | Single Secondary Winding | - |
| Operating Frequency | 50 Hz 60 Hz | 50 Hz 60 Hz | - |