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Product Detailed Parameters
- Description：AUDIO XFMR 150CT / 12 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：3.54:1
- Impedance - Primary (Ohms)：150CT
- Impedance - Secondary (Ohms)：12
- DC Resistance (DCR) - Primary：18Ohm
- DC Resistance (DCR) - Secondary：2.7Ohm
- 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 SP-42-B is an audio transformer from the Triad Magnetics TY series, designed for data and voice coupling applications. It features a single channel with radial pin terminal connections. The device operates within a frequency range of 300 Hz to 100 kHz. Primary impedance is 150 Ohms, while secondary impedance is 12 Ohms. The turns ratio is 3.54:1. Isolation voltage is rated at 1 kV RMS. Rated power is 50 mW. DC resistance is 18 Ohms. Operating temperature ranges from -40°C to +85°C. Dimensions are 0.410 inches in length and 0.310 inches in width.
Feature Summary
- Provides electrical isolation for signal coupling between circuits
- Supports voice and data transmission frequencies
- Utilizes through-hole mounting for board integration
Applications
- Voice signal coupling
- Data line interfacing
- Audio circuit isolation
Procurement Notes
Verify that the specific suffix '-B' corresponds to the correct physical dimensions and lead configuration required for your PCB layout. Confirm the manufacturer source is authorized to ensure component authenticity. Check RoHS compliance status if environmental regulations apply to your assembly process. Ensure the operating temperature range meets your system's thermal requirements.
Selection Notes
Select this model when a 150-ohm primary to 12-ohm secondary impedance transformation is required. The 3.54:1 turns ratio suits specific audio or data line matching needs. Consider the radial package style for vertical mounting constraints. Evaluate the 1 kV isolation rating against your safety requirements. Compare the 50 mW power handling against signal levels.
Part Context
This component belongs to the Triad Magnetics audio transformer family. It is categorized under signal transformers for communication lines. The product is distinct from general-purpose power transformers. It serves niche applications requiring precise impedance matching. The brand specializes in magnetic components for industrial and consumer electronics.
FAQ
What is the isolation voltage rating?
The isolation voltage is rated at 1 kV RMS.
Does this transformer include shielding?
The provided specifications do not indicate external shielding for this specific part number.
