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Product Detailed Parameters
- Description：CURR SENSE XFMR 1:500 25A TH
- Series：CST
- Mfr：Triad Magnetics
- Package：Tube
- Frequency Range：50kHz ~ 500kHz
- Type：Invasive
- Inductance：470 mH
- ET (Volt-Time)：1750VµS
- Current Ratio：-
- DC Resistance (DCR)：16Ohm
- Ratings：-
- Mounting Type：Through Hole
- Size / Dimension：0.669" L x 0.591" W (17.00mm x 15.00mm)
- Height - Seated (Max)：0.472" (12.00mm)
- Termination Style：PC Pin
- Turns Ratio - Primary:Secondary：0.388888889
- Current Rating (Amps)：25 A
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Overview
The Triad Magnetics CST25-0500 is a current sense transformer designed for high-frequency applications. It features a 1:500 turns ratio and supports a maximum primary current of 25 A. The secondary inductance is 470 mH with a maximum DC resistance of 16 Ohms. The device operates within a frequency range of 50 kHz to 500 kHz and has an volt-second rating of 1750 Vµs. It utilizes a through-hole mounting style.
Feature Summary
- Fully encapsulated construction for durability
- Built-in sense winding for ease of integration
- Designed for high-frequency current monitoring
Applications
- LED lighting systems
- Switch-mode power supplies
- High-frequency current monitoring circuits
Procurement Notes
Verify the specific package type and pin configuration against the official datasheet before ordering. Confirm that the operating frequency range aligns with the target application requirements. Ensure the maximum primary current rating of 25 A meets the circuit demands. Check for any specific handling instructions regarding the fully encapsulated design during assembly.
Selection Notes
Select this component when monitoring currents in high-frequency environments such as switch-mode power supplies or LED drivers. The 1:500 ratio provides appropriate signal scaling for sensing applications. Consider the 470 mH secondary inductance for circuit stability. Ensure the through-hole mounting method fits the PCB layout constraints.
Part Context
The CST25 series from Triad Magnetics includes standard current sense transformers for various frequency ranges. The CST25-0500 specifically targets high-frequency operations, distinguishing it from low-frequency CST series models. This part is part of a broader catalog offering custom modification services for unique application needs.
Replacement Considerations
Consult the manufacturer's official documentation for direct substitutes. Cross-reference specifications such as turns ratio, inductance, and current ratings when evaluating alternative components.
