TY-306P-B

Overview

The TY-306P-B is a data and voice coupling audio transformer manufactured by Triad Magnetics. It features a single-channel design with a primary impedance of 600 ohms and a secondary impedance of 600 ohms. The unit operates within a frequency range of 300 Hz to 3.5 kHz and supports a turns ratio of 1:2.21. Electrical characteristics include a maximum DC current rating of 75 mA, with primary DC resistance at 31 ohms and secondary DC resistance at 108 ohms. The device provides 1500 VAC isolation voltage and maintains an insertion loss of 1.5 dB standard. It is constructed for through-hole mounting using radial PC pin terminals.

Feature Summary

• Designed for data and voice coupling applications in audio signal transmission
• Provides galvanic isolation via 1500 VAC dielectric strength between windings
• Utilizes a toroidal core construction to minimize stray magnetic fields
• Supports standard 600-ohm line impedance matching for balanced audio circuits

Applications

• Balanced audio signal transmission in professional sound systems
• Data communication interfaces requiring galvanic isolation
• Telecommunications equipment input/output stages
• Audio mixing consoles and patch bay interconnections

Procurement Notes

Verify the specific suffix designation during procurement to ensure correct packaging configuration. The '-B' suffix typically indicates bulk packaging rather than standard factory reels or tubes. Confirm that the through-hole radial pin pitch matches the target PCB footprint dimensions prior to ordering. Ensure compatibility with the required operating temperature range of -20°C to +85°C for the intended environment.

Selection Notes

Select this component when a 600-ohm to 600-ohm audio transformer with high isolation voltage is required. The 1:2.21 turns ratio allows for specific impedance transformation needs within the audio band. Consider the physical dimensions of 41.91 mm length and 17.27 mm height for enclosure space planning. Verify that the 75 mA current rating meets the circuit's maximum DC bias requirements without saturation.

Part Context

The TY series represents Triad Magnetics' line of general-purpose audio transformers. These components are engineered for reliable performance in voice and data transmission environments. The TY-306P-B variant specifically addresses applications requiring precise impedance matching and electrical isolation. It serves as a critical interface element in analog audio signal chains where ground loops must be eliminated.

FAQ

What is the standard insertion loss for the TY-306P-B?

The standard insertion loss for this transformer is 1.5 dB.

Does the TY-306P-B provide shielding against electromagnetic interference?

No, the TY-306P-B is specified as unshielded in its technical documentation.

What is the maximum DC current rating for the primary winding?

The maximum DC current rating for both primary and secondary windings is 75 mA.