167J33

Overview

The Hammond Manufacturing 167J33 is an enclosed industrial power transformer designed for chassis mounting. It features a single primary winding rated at 115 VAC and a center-tapped secondary output of 33 VAC CT. The unit provides a total power rating of 33 VA with a secondary current capacity of 1 A. Constructed with Class B insulation, it supports operation within a temperature range of 0°C to +130°C at standard frequencies of 50 Hz or 60 Hz. Physical dimensions are approximately 47.8 mm in length, 62 mm in width, and 63.5 mm in height, weighing roughly 590 g. Termination is achieved via wire leads.

Feature Summary

• Enclosed chassis mount construction with dual bobbin design eliminating the need for electrostatic shields
• Class B insulation system ensuring thermal stability up to 130 degrees Celsius
• Center-tapped secondary winding configuration providing balanced low voltage filament output

Applications

• Industrial control panel power distribution
• Filament supply for vacuum tube equipment
• Low voltage circuit powering in machinery

Procurement Notes

Verify that the specific order matches the 167J33 designation to ensure correct 33 VA rating and 33 VAC CT secondary output. Confirm that the application environment remains within the specified 0°C to +130°C operating temperature limits. Ensure the mounting surface accommodates the chassis footprint and that wire lead lengths meet installation requirements. Check RoHS compliance status if restricted substances are a project constraint.

Selection Notes

Select this model when a 33 VA enclosure is required for 115 VAC input systems. The 33 VAC CT output suits applications needing split rail voltages for filament heating. Compare against other series members like 167M16 or 167J25 if different power levels or secondary voltages better fit the load requirements. Consider physical space constraints given the specific dimensional profile.

Part Context

This component belongs to the Hammond 167 Series, which encompasses a broad range of low voltage filament transformers from 0.63 VA to 640 VA. The series shares common design traits including enclosed chassis mounting and dual bobbin construction. The 167J33 represents a mid-range power option within this family, balancing size and output capability for standard industrial control tasks.

Replacement Considerations

Direct substitutes include Hammond part numbers 167J25 (25 VA) or 167M16 (48 VA) if power ratings can be adjusted. Verify that any replacement maintains the 115 VAC primary and 33 VAC CT secondary specifications to ensure circuit compatibility without modification.