70015K

Power Transformers Overview

The Talema Group LLC 70015K is a toroidal power transformer designed for through-hole mounting. It features dual 115V primary windings configurable for parallel or series connection to support 115V or 230V input voltages. The secondary side offers two configurations: parallel output of 22V at 146mA, or series output of 44V at 73mA. This component belongs to the low-profile PCB mounting series, providing compact size and low weight suitable for space-constrained applications.

Power Transformers Feature Summary

• Toroidal core construction for efficient magnetic coupling
• Dual primary winding configuration for flexible voltage input
• Low profile design minimizing footprint and weight
• Through-hole termination for secure PCB integration

Power Transformers Applications

• General purpose AC power supply units
• Embedded electronic equipment requiring isolated power
• Industrial control systems with standard voltage inputs

Power Transformers Procurement Notes

Verify the specific secondary configuration required (parallel 22V/146mA or series 44V/73mA) against your circuit design before procurement. Confirm that the through-hole mounting style aligns with your PCB layout capabilities. Ensure the operating environment remains within the standard temperature ratings specified in the official datasheet to maintain performance reliability.

Power Transformers Selection Notes

Select this model when a compact toroidal transformer is needed for 115V or 230V primary inputs. Choose the parallel secondary variant for higher current needs at lower voltage, or the series variant for higher voltage at reduced current. Ensure the physical dimensions fit the available board space and that the thermal requirements are met by the enclosure design.

Power Transformers Part Context

This component is part of the Talema 70000K series, which specializes in low-profile PCB mounting toroidal transformers. The series ranges from 1.6VA to 50VA capacity, offering various winding configurations. The 70015K specifically addresses applications requiring small form factors while maintaining the efficiency benefits of toroidal geometry.

Power Transformers Replacement Considerations

Direct substitutes must match the 3.2VA rating, toroidal form factor, and specific secondary voltage/current combinations. Verify pinout compatibility and mounting hole spacing if replacing on existing boards. Consult manufacturer catalogs for equivalent models within the same series or comparable low-profile toroidal offerings.