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Product Detailed Parameters
- Description：PWR XFMR LAMINATED 8.4VA CHAS MT
- Series：166
- Mfr：Hammond Manufacturing
- Package：Box
- Type：Laminated Core
- Voltage - Primary：117V
- Voltage - Secondary (Full Load)：12V
- Current - Output (Max)：700mA
- Primary Winding(s)：Single
- Secondary Winding(s)：Single
- Center Tap：No
- Power - Max：8.4VA
- Mounting Type：Chassis Mount
- Termination Style：Wire Leads
- Size / Dimension：71.37mm L x 41.40mm W
- Height - Seated (Max)：42.93mm
- Voltage - Isolation：2000Vrms
- Weight：0.72 lb (326.59 g)
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Overview
The Hammond Manufacturing 166GD12 is a laminated core power transformer designed for chassis mounting. It features a single primary winding rated for 115 VAC at 60 Hz and a single secondary winding providing 12.6 VAC center-tapped output. The unit delivers an apparent power rating of 8.4 VA with a maximum secondary current of 700 mA. Physical dimensions are approximately 71.37 mm in length, 38.1 mm in width, and 42.93 mm in height. Termination is achieved via wire leads.
Feature Summary
- Chassis mount design with wire lead termination
- Single primary to single secondary winding configuration
- Low voltage rectifier use application suitability
Applications
- Industrial control panels
- General purpose low voltage power supplies
- Rectifier circuit input stages
Procurement Notes
Verify the specific voltage rating against your schematic requirements, as distributor listings may vary between 12V and 12.6V specifications for this series. Confirm that the chassis mounting style and wire lead termination are compatible with your enclosure design. Ensure the 8.4 VA power rating meets the load demands of your downstream circuitry before finalizing the order.
Selection Notes
Select this component when a compact, chassis-mountable transformer is required for standard 115V AC line frequencies. The 166GD12 offers a balance of moderate power output and small footprint suitable for space-constrained industrial enclosures. Consider the center-tapped secondary if full-wave rectification is needed for the target application.
Part Context
This model belongs to the Hammond 166 Series, a line of general-purpose industrial power transformers. The series typically includes various voltage and wattage combinations sharing similar physical form factors and mounting characteristics. These units are widely used in automation and control equipment requiring isolated low-voltage AC power sources.
Replacement Considerations
The 166G12 is a documented variant within the same series offering 6.3 VA and 12.6V CT output. Designers should verify that the reduced power rating of the 166G12 is sufficient for their specific load requirements before substituting.
