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Product Detailed Parameters
- Description：XFMR 10K / 10K 2.5K/2.5K 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：2.1:1
- Impedance - Primary (Ohms)：10k
- Impedance - Secondary (Ohms)：10k, 2.5k/2.5k
- DC Resistance (DCR) - Primary：1kOhm
- DC Resistance (DCR) - Secondary：565/650Ohm
- 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-68 is an audio coupling transformer designed for impedance matching in signal processing circuits. It features a 10k Ohm primary impedance and dual 2.5k Ohm secondary windings, providing a 2.1:1 ratio. The device operates within a frequency range of 300Hz to 100kHz with a response of ±2dB. Key electrical specifications include a primary DC resistance of 1k Ohm, a maximum current rating of 1mA, and 1000VRMS isolation voltage. It utilizes PC pin termination for through-hole mounting.
Feature Summary
- Provides versatile impedance matching for both input and output stages
- Achieves up to 95dB shielding by multiple trialloy layers
- Features precision-spaced plug-in terminals for fixed mounting centers
Applications
- Audio signal coupling
- Input stage impedance matching
- Output stage impedance matching
Procurement Notes
Verify the specific datasheet version when sourcing, as manufacturing updates may occur. Confirm that the UL94 V-0 rated molded case meets your safety requirements. Ensure the PC pin termination style aligns with your PCB layout constraints. Check for any changes in the factory pack quantity or shipping specifications prior to ordering to avoid logistical discrepancies.
Selection Notes
Select this component when a 10k to 2.5k/2.5k impedance transformation is required for audio frequencies between 300Hz and 100kHz. The high isolation voltage of 1000VRMS makes it suitable for applications requiring significant potential difference separation. Consider the physical dimensions and through-hole mounting style if surface mount alternatives are not viable for the assembly process.
Part Context
The SP-68 belongs to Triad Magnetics' line of audio transformers, which are engineered for precise signal transfer. These components typically utilize specialized core materials like trialloy to enhance performance. The series is characterized by robust construction and reliable electrical characteristics suitable for professional audio equipment and industrial signal conditioning tasks.
Replacement Considerations
The SP-13 is a comparable model within the same product family. Verify impedance ratios and physical footprint compatibility before substitution. Consult official documentation to ensure functional equivalence regarding frequency response and isolation ratings.
