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Product Detailed Parameters
- Description：PWR XFMR LAMINATED 20VA CHAS MT
- Series：166
- Mfr：Hammond Manufacturing
- Package：Bulk
- Type：Laminated Core
- Voltage - Primary：115V
- Voltage - Secondary (Full Load)：20V
- Current - Output (Max)：1A
- Primary Winding(s)：Single
- Secondary Winding(s)：Single
- Center Tap：Yes
- Power - Max：20VA
- Mounting Type：Chassis Mount
- Termination Style：Wire Leads
- Size / Dimension：82.55mm L x 44.45mm W
- Height - Seated (Max)：50.80mm
- Voltage - Isolation：2000Vrms
- Weight：1 lb (453.59 g)
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Overview
The Hammond Manufacturing 166J20 is a low voltage industrial power transformer with a 20 VA rating. It features a single primary winding rated at 115 VAC and a center-tapped secondary winding providing 20 VAC at 1 A. Designed for chassis mounting, it operates at 50/60 Hz with wire lead termination. The unit measures 3.25 inches in length, 2 inches in width, and 2 inches in height, weighing approximately 612 grams. It functions within a temperature range of 0°C to +130°C.
Feature Summary
- Center-tapped secondary winding configuration
- Chassis mount installation style
- Laminated core construction
Applications
- Industrial control panels
- Low voltage power supply circuits
- Equipment requiring 20V AC isolation
Procurement Notes
Verify the specific datasheet version and manufacturing date code upon order confirmation. Confirm that the component matches the exact 166J20 designation rather than similar variants like 166J25C or 166J40. Ensure compatibility with existing chassis mounting brackets and wire lead lengths before finalizing procurement.
Selection Notes
Select this model when a 20 VA capacity and 115V to 20V center-tapped transformation are required. It is suitable for applications needing a compact, chassis-mountable solution with standard wire leads. Consider thermal limits and physical dimensions relative to the enclosure space available for integration.
Part Context
This component belongs to the Hammond 166 series of industrial control transformers. The series offers various power ratings and voltage configurations for general-purpose power transformation. The 166J20 specifically addresses needs for moderate power levels with a center-tapped output, fitting into standard industrial equipment designs.
Replacement Considerations
Direct substitutes include other Hammond 166 series models with identical electrical specifications. Verify pinout and mounting hole spacing if considering non-Hammond equivalents. Cross-reference part numbers carefully to ensure the center-tapped secondary requirement is met by any alternative.
