DA101JC

Overview

The DA101JC is a surface mount digital audio pulse transformer from the DA100J series by Murata Power Solutions. It features a 1:1 turns ratio and an inductance range of 1 mH to 2.2 mH with a primary impedance of 110 Ohms. The component operates within a frequency range of 50 Hz to 60 Hz and provides 2 kV insulation voltage. It supports an ET value of 15 Vµs and functions between -40°C and +85°C. The shielded unit measures 9.52 mm x 9 mm x 6.35 mm in an SMD-6 package.

Feature Summary

• Designed for signal coupling and isolation in digital audio data transmission circuits
• Provides electrical isolation with 2 kV insulation voltage capability
• Shielded construction minimizes electromagnetic interference
• Optimized for low-frequency audio signal integrity

Applications

• Digital audio data transmission systems
• Signal coupling in audio-related circuits
• Isolation barriers in professional audio equipment

Procurement Notes

Verify the specific suffix designation, as the DA101JC-R variant is explicitly documented as the suggested alternate for the DA101MC-R. Confirm that the requested part matches the exact DA100J series specifications regarding temperature range and inductance tolerances. Ensure compatibility with surface mount assembly processes given the SMD-6 package dimensions. Cross-reference RoHS compliance status if required by project regulations.

Selection Notes

Select this component when designing circuits requiring galvanic isolation for digital audio signals at standard power line frequencies. The 1:1 ratio suits balanced transmission lines. Consider the -40°C to +85°C operating range for industrial or automotive environments. The shielded design is critical for noise-sensitive applications. Verify footprint compatibility with the 9.52 mm x 9 mm x 6.35 mm SMD-6 package constraints during PCB layout.

Part Context

The DA101JC belongs to the DA100J series of surface mount transformers specifically engineered for digital audio applications. This series focuses on maintaining signal fidelity while providing necessary isolation. The component represents a specialized solution for modern audio interfaces where compact size and reliable performance are prioritized over through-hole alternatives.

Replacement Considerations

DA101JC-R is publicly confirmed as the suggested alternate for related variants like DA101MC-R.