TRS278-122-75+

Overview

The TRS278-122-75+ is a surface-mount balanced-to-balanced RF transformer manufactured by Mini-Circuits. It operates within the 40 MHz to 1250 MHz frequency range and features a 1:2.78 turns ratio with 75 Ohm impedance on both ports. The component utilizes core and wire construction technology. Its physical dimensions are 7.11 mm in length, 6.35 mm in width, and 4.19 mm in height. The device supports a minimum operating temperature of -40°C and a maximum operating temperature of +65°C.

Feature Summary

• Balanced-to-balanced signal transformation for RF applications
• Core and wire construction for stable performance
• Surface-mount package design for automated assembly

Applications

• CATV broadband access systems
• DOCSIS 3.1 infrastructure components
• RF signal conditioning circuits

Procurement Notes

Verify the specific ordering suffix against official Mini-Circuits documentation to ensure correct impedance and tolerance specifications. Confirm that the RoHS3 compliance status aligns with current regulatory requirements for your target market. Check datasheet revisions for any updates to electrical characteristics or mechanical drawings before finalizing procurement orders.

Selection Notes

Select this component when a 75 Ohm balanced interface is required across the 40 MHz to 1250 MHz spectrum. Ensure the system design accommodates the specified thermal operating range of -40°C to +65°C. Verify that the surface-mount footprint matches the PCB layout constraints and that the core and wire construction meets the necessary isolation standards for the application.

Part Context

This part belongs to the TRS278 series from Mini-Circuits, which specializes in RF transformers for cable and broadband markets. The series provides solutions for signal distribution and conditioning in high-frequency environments. Mini-Circuits designs these components to support robust performance in demanding communication systems requiring precise impedance matching.

Replacement Considerations

Consult Mini-Circuits official substitution guides for verified alternatives. Cross-reference impedance ratios and frequency ranges to ensure functional compatibility. Do not assume interchangeability with other series without verifying electrical parameters against the original datasheet.