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| PartNumber | F-3181U | F-318X | F3185U |
| Description | Power Transformers 12.6V CT 4A PWR XFMR | Power Transformers 6.3VCT 6A TRANS | Power Transformers 28.0VCT 2.0A XFMR PRI 115/230 |
| Manufacturer | Triad Magnetics | Triad Magnetics | Triad Magnetics |
| Product Category | Power Transformers | Power Transformers | Power Transformers |
| RoHS | In Transition | - | Details |
| Brand | Triad Magnetics | - | Triad Magnetics |
| Product | Control Transformers | Control Transformers | Control Transformers |
| Mounting Style | Chassis | Chassis | Chassis |
| Series | Chassis Mount | Chassis Mount | Chassis Mount |
| Termination Style | Wire Leads | Wire Leads | Wire Leads |
| Type | Power Transformers | Laminated Core | Power Transformers |
| Unit Weight | 2.300 lbs | 2.300 lbs | - |
| Mounting Type | - | Chassis Mount | - |
| Size Dimension | - | 101.60mm L x 57.15mm W | - |
| Current Output Max | - | 6A | - |
| Power Max | - | 37.8 VA | - |
| Voltage Isolation | - | 1500Vrms | - |
| Height Seated Max | - | 57.94mm | - |
| Voltage Primary | - | 115V, 230V | - |
| Voltage Secondary Full Load | - | 6.3V | - |
| Primary Winding s | - | Dual | - |
| Secondary Winding s | - | Single | - |
| Center Tap | - | Yes | - |
| Primary Voltage Rating | - | - | 115 V 230 V |
| Secondary Voltage Rating | - | - | 28 V |
| Length | - | - | 2 7/16 in |
| Width | - | - | 2 1/2 in |
| Height | - | - | 3 1/6 in |
| Packaging | - | - | Tube |