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Product Detailed Parameters
- Description：PWR XFMR LAMINATED 12VA CHAS MT
- Series：166
- Mfr：Hammond Manufacturing
- Package：Box
- Type：Laminated Core
- Voltage - Primary：115V
- Voltage - Secondary (Full Load)：12V
- Current - Output (Max)：1A
- Primary Winding(s)：Single
- Secondary Winding(s)：Single
- Center Tap：Yes
- Power - Max：12VA
- 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：0.7 lb (317.51 g)
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Overview
The Hammond Manufacturing 166JA12 is a low voltage power transformer designed for industrial applications. It features a single primary winding rated at 115 VAC and a center-tapped secondary output of 12.6 VCT. The unit provides a power rating of 12 VA with a maximum secondary current of 1 A. Constructed with wire leads for connection, it supports chassis mounting. The physical dimensions are 71.37 mm in length, 41.4 mm in width, and 42.93 mm in height.
Feature Summary
- Single primary winding configuration for standard line voltage input
- Center-tapped secondary output suitable for rectifier circuits
- Chassis mount style with wire lead termination
Applications
- Industrial control panels requiring low voltage power
- Filament supply for vacuum tube equipment
- Rectifier circuit power sources
Procurement Notes
Verify the specific ordering suffix to ensure correct packaging and terminal configuration. Confirm that the required voltage and current ratings match the application design. Check RoHS compliance status if environmental regulations apply. Ensure chassis mounting hardware is compatible with the specified dimensions. Review datasheet specifications for insulation class and temperature rise limits before integration.
Selection Notes
Select this component when a 115 VAC input must be stepped down to a 12.6 VCT output. The 12 VA rating determines the maximum load capacity. Consider the chassis mount requirement and wire lead termination method. Evaluate space constraints against the 71.37 x 41.4 x 42.93 mm footprint. Compare against similar models like 166J12 or 166G12 for different power levels.
Part Context
This part belongs to the Hammond 166 series of laminated core power transformers. These units are generally used for general purpose low voltage applications. The series includes various ratings and configurations. The 166JA12 specifically targets 12 VA requirements. It is distinct from enclosure products also sold by Hammond.
Replacement Considerations
The 166J12 offers identical electrical characteristics with a 12.6 VA rating. Verify mechanical fit and lead length compatibility. Confirm that the alternative part number meets all safety certifications.
