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Product Detailed Parameters
- Description：AUDIO XFMR
- Series：-
- Mfr：Triad Magnetics
- Package：Bulk
- Mounting Type：-
- Size / Dimension：-
- Height - Seated (Max)：-
- Termination Style：-
- Turns Ratio - Primary:Secondary：-
- Impedance - Primary (Ohms)：-
- Impedance - Secondary (Ohms)：-
- DC Resistance (DCR) - Primary：-
- DC Resistance (DCR) - Secondary：-
- Transformer Type：-
- Frequency Range：-
- Frequency Response：-
- Voltage - Isolation：-
- Insertion Loss：-
- Return Loss：-
- Power Level：-
- Operating Temperature：-
- Approval Agency：-
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Overview
The Triad Magnetics A-15J is an impedance matching audio transformer designed for signal applications. It features a primary impedance configuration of 600, 250, and 50 ohms with a secondary impedance of 20 kOhms. The device supports a turns ratio of 1:577 and has a power rating of 10mW. This component facilitates precise signal transfer in low-power audio circuits.
Feature Summary
- Provides impedance matching between low-impedance sources and high-impedance loads
- Supports multiple primary impedance selections for versatile circuit integration
- Designed for pre-amplification and inter-stage signal coupling
Applications
- Pre-amplification stages in audio equipment
- Inter-stage coupling in signal processing chains
- Impedance matching in professional audio interfaces
Procurement Notes
Verify the specific impedance variant required (600/250/50 ohms) against schematic specifications. Confirm that the 10mW power rating meets the signal level requirements of the application. Ensure compatibility with the 20 kOhm secondary load. Check RoHS compliance status if mandated by project regulations.
Selection Notes
Select this component when interfacing low-impedance audio sources with high-impedance inputs. The fixed 1:577 ratio suits specific gain or isolation needs. Consider physical size constraints as it is a through-hole component. Validate thermal performance for continuous operation within the rated power limits.
Part Context
This part belongs to Triad Magnetics' audio transformer lineup, specialized for signal integrity rather than power delivery. It addresses the need for galvanic isolation and impedance transformation in sensitive analog audio paths, distinguishing it from general-purpose power transformers.
Replacement Considerations
No public substitute part numbers are confirmed in the provided documentation. Verify pinout and mechanical dimensions before considering alternative manufacturers.
