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FIS155NL is listed in the Current Sense Transformers range at ChipApex. The manufacturer field lists Pulse Electronics. Its product description is CURR SENSE XFMR 1:500 25A T/H. Review the specifications below when checking this part for your BOM.
Current Sense Transformers specifications for FIS155NL
- Description：CURR SENSE XFMR 1:500 25A T/H
- Series：FIS 1X5
- Mfr：Pulse Electronics
- Package：Tube
- Frequency Range：500kHz Max
- Type：Invasive
- Inductance：470 mH
- ET (Volt-Time)：1750VµS
- Current Ratio：-
- DC Resistance (DCR)：16Ohm Max
- Ratings：-
- Mounting Type：Through Hole
- Size / Dimension：0.693" L x 0.591" W (17.60mm x 15.00mm)
- Height - Seated (Max)：0.492" (12.50mm)
- Termination Style：PC Pin
- Turns Ratio - Primary:Secondary：0.388888889
- Current Rating (Amps)：-
Current Sense Transformers datasheet and documents for FIS155NL
Current Sense Transformers Overview
The FIS155NL is a current sense transformer manufactured by Pulse Electronics, designed for board mount through-hole applications. It features a turns ratio of 1:500 and a maximum inductance of 470 mH. The device supports a maximum frequency of 500 kHz and has a maximum primary resistance of 16 Ohms. It is intended for use in switch-mode power supplies to provide output feedback to pulse control circuitry.
Current Sense Transformers Feature Summary
- Provides output feedback to pulse control circuitry for low-cost regulation of switch-mode power supplies.
Current Sense Transformers Applications
- Switch-mode power supply regulation
- Current sensing circuits
Current Sense Transformers Procurement Notes
Verify the specific datasheet version and manufacturer documentation before procurement. Confirm that the component meets all required electrical specifications for your application, including inductance, resistance, and frequency limits. Ensure compatibility with your PCB layout and assembly processes.
Current Sense Transformers Selection Notes
Select this component when a high turns ratio and significant inductance are required for precise current sensing in power supply designs. Consider the through-hole mounting style and physical dimensions during PCB layout planning. Verify that the 500 kHz maximum frequency aligns with your switching regulator's operating range.
Current Sense Transformers Part Context
The FIS155NL belongs to Pulse Electronics' current sense transformer lineup, which includes models like the FIS111 and PA2755NL. These components are typically used in power electronics to monitor current levels and provide feedback for regulation purposes. The FIS155NL specifically offers a 1:500 ratio, distinguishing it from other variants in the series.
Current Sense Transformers Replacement Considerations
Check for direct substitutes within the FIS series or comparable current sense transformers from other manufacturers. Ensure any replacement matches the 1:500 turns ratio, 470 mH inductance, and 16 Ohm resistance specifications. Verify package compatibility and thermal performance.
Current Sense Transformers FAQ
What is the turns ratio of the FIS155NL?
The FIS155NL has a turns ratio of 1:500.
What is the maximum inductance of the FIS155NL?
The maximum inductance of the FIS155NL is 470 mH.
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