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Product Detailed Parameters
- Description：AUDIO XFMR 600 / 470 TH
- Series：TTC
- Mfr：Tamura
- Package：Bulk
- Mounting Type：Through Hole
- Size / Dimension：-
- Height - Seated (Max)：-
- Termination Style：-
- Turns Ratio - Primary:Secondary：-
- Impedance - Primary (Ohms)：600
- Impedance - Secondary (Ohms)：470
- DC Resistance (DCR) - Primary：-
- DC Resistance (DCR) - Secondary：-
- Transformer Type：Data/Voice Coupling
- Frequency Range：-
- Frequency Response：-
- Voltage - Isolation：-
- Insertion Loss：2.5dB Typ
- Return Loss：-
- Power Level：-
- Operating Temperature：-
- Approval Agency：-
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Overview
The TTC-264M is a telecommunications transformer manufactured by Tamura, designed for modem signal coupling applications. It features a primary impedance of 600 Ohms and a secondary impedance of 470 Ohms. The device operates within a frequency range of 300 Hz to 3.5 kHz with a 1:1 turns ratio. Constructed for through-hole mounting via PC pins, it complies with UL1950 safety standards. This component facilitates balanced-to-balanced signal transmission in telecommunication circuits.
Feature Summary
- Provides electrical isolation between balanced lines
- Supports standard telephone line impedance matching
- Ensures signal integrity across voice frequencies
Applications
- Modem signal coupling
- Telecommunications equipment
- Balanced line interfacing
Procurement Notes
Verify the specific suffix designation against official Tamura documentation to confirm exact impedance ratios and pin configurations. Ensure compliance with RoHS directives if required for the target market. Cross-reference the date code and country of origin markings on the component body with the manufacturer's quality certificates to validate authenticity and production batch details.
Selection Notes
Select this component when a 600 Ohm to 470 Ohm impedance transformation is required for balanced audio or data signals. Consider the 300 Hz to 3.5 kHz bandwidth limitation for voice-grade applications. Evaluate the through-hole package constraints against the printed circuit board layout requirements before finalizing the design integration.
Part Context
This part belongs to Tamura's series of telecom transformers, specifically engineered for modem and telephone interface circuits. It serves as a critical passive component for maintaining signal balance and reducing noise in communication systems. The model represents a standard solution for legacy and modern telephony hardware requiring precise impedance matching.
Replacement Considerations
TTC-264 is listed as a related variant. Verify compatibility regarding impedance values and physical footprint before substitution.
FAQ
What is the operating frequency range?
The component operates effectively between 300 Hz and 3.5 kHz.
Does it meet safety standards?
Yes, it complies with UL1950 safety regulations.
