SP-49

Overview

The Triad Magnetics SP-49 is an encapsulated audio transformer designed for high-reliability applications. It features a primary resistance of 41 Ohms and supports a rated current of 7 mA with a power rating of 50 mW. The device provides an isolation voltage of 1 kV (1000 VRMS) and operates within a frequency range from 300 Hz to 100 kHz. It functions reliably across a temperature range of -40 °C to 85 °C and utilizes through-hole mounting.

Feature Summary

• Encapsulated epoxy molded case construction
• Gold-plated leads for connection integrity
• High reliability design suitable for demanding environments

Applications

• Audio signal processing circuits
• High reliability electronic systems
• Impedance matching in audio equipment

Procurement Notes

Verify the specific datasheet version and manufacturer documentation to confirm electrical parameters such as isolation voltage and frequency response ranges. Ensure that the through-hole mounting requirements align with the target PCB layout. Confirm operating temperature specifications match the intended environmental conditions before procurement.

Selection Notes

Select this component when a robust, encapsulated audio transformer with high isolation voltage is required. Consider the 50 mW power rating and 7 mA current limit to ensure compatibility with the circuit's signal levels. The wide frequency response makes it suitable for various audio frequencies, while the through-hole package dictates the assembly method.

Part Context

The SP-49 belongs to Triad Magnetics' Red Spec Series, which focuses on high-reliability components. This series is engineered to meet stringent performance standards, often utilized in military or industrial applications where consistent operation under varying temperatures and conditions is critical. The encapsulation provides protection against environmental factors.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.