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SPT-202 is listed in the Audio Transformers range at ChipApex. The manufacturer field lists Prem Magnetics, Inc.. Its product description is AUDIO XFMR 1KCT / 8CT TH. Review the specifications below when checking this part for your BOM.
Audio Transformers specifications for SPT-202
- Description：AUDIO XFMR 1KCT / 8CT TH
- Series：SPT-200
- Mfr：Prem Magnetics, Inc.
- Package：Bulk
- Mounting Type：Through Hole
- Size / Dimension：0.598" L x 0.472" W (15.20mm x 12.00mm)
- Height - Seated (Max)：0.433" (11.00mm)
- Termination Style：PC Pin
- Turns Ratio - Primary:Secondary：-
- Impedance - Primary (Ohms)：1kCT
- Impedance - Secondary (Ohms)：8CT
- DC Resistance (DCR) - Primary：60Ohm
- DC Resistance (DCR) - Secondary：800mOhm
- Transformer Type：Economical Open Type
- Frequency Range：-
- Frequency Response：-
- Voltage - Isolation：1000Vrms
- Insertion Loss：-
- Return Loss：-
- Power Level：75mW
- Operating Temperature：-
- Approval Agency：-
Audio Transformers datasheet and documents for SPT-202
Audio Transformers Overview
The SPT-202 is an audio output transformer manufactured by Prem Magnetics, Inc. It features a primary impedance of 1kΩ center-tapped and a secondary impedance of 8Ω center-tapped. The DC resistance of the primary winding is specified at 60 Ohms. This component is designed for through-hole mounting and is classified as an active product within the manufacturer's inventory.
Audio Transformers Feature Summary
- Center-tapped primary and secondary winding configuration
- Designed for audio signal output applications
- Through-hole mounting style
Audio Transformers Applications
- Audio amplifier output stages
- Tube amplifier circuits
- Impedance matching between vacuum tubes and speakers
Audio Transformers Procurement Notes
Verify the specific manufacturing date code and lot number upon receipt to ensure component authenticity. Confirm that the physical dimensions match the mechanical drawings provided in the official datasheet. Check for any visible damage to the leads or core assembly before installation into the circuit board.
Audio Transformers Selection Notes
Select this component when a 1kΩ center-tapped primary impedance is required to match the output stage of the design. Ensure the secondary load impedance aligns with the 8Ω center-tapped specification. Consider the thermal characteristics and power handling capabilities relative to the intended audio power levels during the system design phase.
Audio Transformers Part Context
This part belongs to the SPT series of audio transformers from Prem Magnetics. Similar parts in this family include the SPT-304 and SPT-403, which offer different impedance ratios such as 48CT:8CT and 1.2kCT:8CT respectively, allowing for flexibility in tube amplifier designs requiring various plate load impedances.
Audio Transformers Replacement Considerations
Direct substitutes may include other audio output transformers with identical 1kCT:8CT impedance ratios and compatible physical footprints. Verify pinout compatibility and electrical parameters such as DC resistance and frequency response before substituting.
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