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Product Detailed Parameters
- Description：AUDIO XFMR TH
- Series：TTC
- Mfr：Tamura
- Package：Bulk
- Mounting Type：Through Hole
- Size / Dimension：-
- Height - Seated (Max)：-
- Termination Style：PC Pin
- Turns Ratio - Primary:Secondary：-
- Impedance - Primary (Ohms)：-
- Impedance - Secondary (Ohms)：-
- DC Resistance (DCR) - Primary：-
- DC Resistance (DCR) - Secondary：-
- Transformer Type：Data/Voice Coupling
- Frequency Range：-
- Frequency Response：-
- Voltage - Isolation：-
- Insertion Loss：-
- Return Loss：-
- Power Level：-
- Operating Temperature：-
- Approval Agency：-
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Overview
The Tamura TTC-303SL is a telecommunications coupling transformer designed for voice and modem line applications. It supports V.29, V.32, V.34, V.90, and V.92 standards. The component features a miniaturized through-hole package with PC pin termination. It provides electrical isolation between primary and secondary sides. The unit is classified as an audio/data coupling transformer within the TTC series.
Feature Summary
- Supports multiple V-series modem protocols including V.90 and V.92
- Miniature form factor for high-density board layouts
- Through-hole mounting with PC pin termination
Applications
- V.29 modem line interfaces
- V.32/V.34 data communication systems
- V.90/V.92 dial-up modem circuits
Procurement Notes
This component is officially discontinued by Tamura as of September 21, 2024. Verify current availability through authorized distributors or alternative sources. Check RoHS compliance status as it may not meet current environmental regulations. Confirm lead times and stock levels carefully due to end-of-life status.
Selection Notes
Select this part only if legacy compatibility with specific V-series modem standards is required. Ensure the PCB layout accommodates through-hole PC pins. Consider the discontinued status when planning long-term production. Verify impedance matching requirements against circuit design specifications before integration.
Part Context
Part of the Tamura TTC series of telecommunications transformers. Designed for voice and data line coupling in modem applications. Offers compact packaging solutions for signal isolation. Supports various modulation standards for reliable data transmission over telephone lines.
Replacement Considerations
No direct public substitute part numbers are confirmed for this discontinued model. Evaluate equivalent telecom coupling transformers from other manufacturers. Verify protocol support and physical dimensions match existing designs. Consult distributor databases for cross-reference options.
