373BX

Power Transformers Overview

The Hammond Manufacturing 373BX is a high voltage and filament power transformer from the 300 Series, rated at 200 VA. It features dual primary windings supporting 100 VAC to 240 VAC input and triple secondary windings. Key secondary outputs include 750 VAC center-tapped at 201 mA, 5 VAC center-tapped at 3 A, and 6.3 VAC center-tapped at 5 A. The unit utilizes a laminated core with wire lead termination for chassis mounting. Physical dimensions are 101.6 mm in length, 95.25 mm in width, and 115.82 mm in height, weighing approximately 3.856 kg. It operates within a temperature range of 0°C to +105°C at 50/60 Hz.

Power Transformers Feature Summary

• Provides simultaneous high voltage plate supply and low voltage filament heating capabilities through dedicated secondary windings.
• Features dual primary winding configuration to accommodate varying standard line voltages across global markets.
• Constructed with a laminated core design optimized for industrial control environments requiring stable power delivery.

Power Transformers Applications

• Industrial control systems requiring isolated high voltage DC rectification supplies
• Vacuum tube amplifier circuits needing combined plate and filament power
• Test equipment utilizing electron tubes or similar high voltage components

Power Transformers Procurement Notes

Verify that the specific secondary current ratings align with your load requirements before integration. Confirm physical clearance for the chassis-mounted dimensions during enclosure design. Ensure input voltage selection matches the dual primary wiring configuration available on the unit. Check local compliance documentation for RoHS status if required by your manufacturing standards.

Power Transformers Selection Notes

Choose this model when both high voltage isolation and multiple low voltage filament rails are necessary from a single source. Compare against the 372BX or 374BX if different voltage ratios or power capacities better suit the circuit topology. Consider the weight and mounting style when designing the mechanical support structure for the assembly.

Power Transformers Part Context

This component belongs to the Hammond 300 Series of industrial power transformers. These units are designed for robust performance in demanding electrical environments. The series offers various configurations to meet diverse voltage and current needs for specialized electronic applications.

Power Transformers Replacement Considerations

The 374BX serves as a direct substitute offering identical power rating but with a higher 750V CT secondary output. The 372BX provides lower power capacity at 98VA with different secondary voltage options. Verify pinout compatibility and physical footprint before swapping these models.