70012K

Power Transformers Overview

The 70012K is a toroidal transformer manufactured by Talema Group LLC, designed for low-profile PCB mounting applications. It features dual 115V primaries that support parallel or series connection configurations to accommodate various input voltage requirements. The unit provides a dual secondary output of 12V at 133mA, delivering a total power rating of 3.2VA. Constructed with through-hole mounting capabilities, it utilizes an M4 central bush for ease of installation. The physical dimensions are approximately 44.7mm in diameter and 19.5mm in height, ensuring a compact footprint suitable for space-constrained electronic designs.

Power Transformers Feature Summary

• Dual 115V primary windings allowing flexible parallel or series connection options
• Low-profile design with small size and reduced weight characteristics
• Through-hole mounting structure utilizing an M4 central bush for secure attachment

Power Transformers Applications

• General purpose AC power conversion in compact electronic devices
• Applications requiring isolated dual secondary voltage outputs
• Equipment with strict spatial constraints necessitating low-profile transformers

Power Transformers Procurement Notes

Verify the specific pinout configuration and winding arrangement against the official Talema datasheet before integration. Confirm that the mechanical mounting hole aligns with the M4 central bush specification. Ensure the operating environment does not exceed the thermal limits defined in the product documentation. Cross-reference the part number with current distributor availability as standard stock levels may fluctuate.

Power Transformers Selection Notes

Select this component when a compact toroidal transformer with dual primary flexibility is required. The 3.2VA rating suits low-power signal processing or control circuitry. Consider the through-hole mounting requirement versus surface-mount alternatives if board space allows. Verify that the 12V secondary output meets the load current demands of the target application without exceeding the 133mA limit.

Power Transformers Part Context

This transformer belongs to the Talema Group's standard catalog of off-the-shelf magnetic components. It is part of a broader range of toroidal transformers designed for global distribution. The company has been manufacturing such components since 1975, offering both standard and custom magnetic solutions. This specific model represents a common configuration within their low-profile PCB mounting series.

Power Transformers Replacement Considerations

No direct public substitute part numbers are confirmed for this specific model. When replacing, ensure the new component matches the 3.2VA power rating, 12V secondary output, and 44.7mm diameter constraint. Verify compatibility with the M4 mounting bush and dual primary wiring scheme to maintain circuit functionality.