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Product Detailed Parameters
- Description：AUDIO XFMR 10KCT / 1.2KCT TH
- Series：Red-Spec
- Mfr：Triad Magnetics
- Package：Bulk
- Mounting Type：Through Hole
- Size / Dimension：0.410" L x 0.310" W (10.41mm x 7.87mm)
- Height - Seated (Max)：0.465" (11.80mm)
- Termination Style：PC Pin
- Turns Ratio - Primary:Secondary：2.88:1
- Impedance - Primary (Ohms)：10kCT
- Impedance - Secondary (Ohms)：1.2kCT
- DC Resistance (DCR) - Primary：1.05kOhm
- DC Resistance (DCR) - Secondary：200Ohm
- Transformer Type：Audio Coupling
- Frequency Range：300Hz ~ 100kHz
- Frequency Response：±2dB
- Voltage - Isolation：1000VRMS @ 1 Second
- Insertion Loss：-
- Return Loss：-
- Power Level：50mW
- Operating Temperature：-40°C ~ 85°C
- Approval Agency：-
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Overview
The Triad Magnetics SP-20 is a high-reliability audio and signal transformer belonging to the Red Spec Series. It features through-hole mounting and operates within a temperature range of -40°C to 85°C. The component has a power rating of 50 mW (1/20 W) with a primary impedance of 10 kOhms and a secondary impedance of 1.2 kOhms center-tapped. Primary DC resistance is 1.05 kOhms, while secondary DC resistance is 200 Ohms. It supports a frequency range of 300 Hz to 100 kHz and is rated for a current of 1 mA.
Feature Summary
- High reliability construction designed for demanding environments under the Red Spec Series designation
- Wide-spectrum frequency response capability suitable for diverse audio and signal applications
- Through-hole mounting style for secure PCB integration
Applications
- Audio signal coupling in professional equipment
- Impedance matching in signal processing circuits
- General-purpose audio and signal transformation tasks
Procurement Notes
Verify the specific suffix if required, as standard SP-20 denotes the base configuration. Confirm RoHS compliance status directly from the manufacturer's latest documentation before finalizing procurement. Ensure the ordering quantity matches the bulk packaging specifications provided by authorized distributors. Cross-reference the part number against the official Triad Magnetics catalog to avoid confusion with similar series components.
Selection Notes
Select this component when a 10k:1.2k CT impedance ratio is required for audio or signal isolation. The 50 mW power rating limits its use to low-power signal paths rather than power delivery. Consider the 300 Hz to 100 kHz bandwidth to ensure compatibility with the target signal spectrum. The through-hole package dictates the PCB layout requirements compared to surface-mount alternatives.
Part Context
The SP-20 is part of Triad Magnetics' Red Spec Series, which emphasizes high reliability for critical applications. This series typically undergoes rigorous testing standards compared to general commercial lines. The component serves as a specialized solution for audio engineers requiring precise impedance transformation in compact through-hole formats.
Replacement Considerations
Direct substitutes include other Triad Magnetics audio transformers with matching 10k:1.2k CT ratios and 50 mW ratings, such as those in the MET or TY series, provided pinouts and physical dimensions are compatible.
