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Product Detailed Parameters
- Description：Tools/Equipment/Hardware
- Series：166
- Mfr：Hammond Manufacturing
- Package：Bulk
- Type：-
- Voltage - Primary：115V
- Voltage - Secondary (Full Load)：20V
- Current - Output (Max)：150mA
- Primary Winding(s)：Single
- Secondary Winding(s)：Single
- Center Tap：Yes
- Power - Max：3VA
- Mounting Type：Chassis Mount
- Termination Style：Wire Leads
- Size / Dimension：52.32mm L x 35.05mm W
- Height - Seated (Max)：30.23mm
- Voltage - Isolation：2000Vrms
- Weight：-
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Overview
The Hammond Manufacturing 166E20-BULK is a low voltage power transformer designed for industrial applications. It features a single primary winding rated at 115 VAC and a dual secondary winding configuration providing 20 VAC center-tapped output. The unit has a power rating of 3 VA with a maximum secondary current of 150 mA. Designed for chassis mounting, it utilizes wire leads for termination. The transformer operates within a temperature range of 0°C to +130°C and supports frequencies of 50 Hz or 60 Hz.
Feature Summary
- Dual secondary winding configuration provides flexible center-tapped output options
- Chassis mount design facilitates secure installation in industrial enclosures
- High thermal tolerance supports operation up to +130°C
Applications
- Industrial automation control circuits
- Low voltage rectifier applications
- Filament power supply systems
Procurement Notes
Verify the specific suffix designation against official Hammond Manufacturing documentation to confirm exact electrical characteristics and physical dimensions. Ensure the procurement source provides valid RoHS compliance data and confirms the bulk packaging format matches project requirements. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity and technical specifications before finalizing orders.
Selection Notes
Select this component when a low-profile, chassis-mountable transformer is required for 115V AC input systems. The dual secondary winding allows for various voltage tapping configurations suitable for sensitive electronic loads. Consider the 3 VA power limit and operating temperature range to ensure compatibility with the intended enclosure environment and thermal management strategy.
Part Context
This model belongs to the Hammond 166 series of laminated core power transformers. The series is characterized by compact dimensions and robust construction for industrial use. The 166E20 variant specifically addresses needs for 20V center-tapped outputs, distinguishing it from other series members with different voltage ratings or winding configurations.
Replacement Considerations
Consult Hammond Manufacturing datasheets for direct cross-references within the 166 series. Verify that any substitute maintains identical primary voltage, secondary configuration, and mounting footprint to ensure mechanical and electrical compatibility.
