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Product Detailed Parameters
- Description：CURR SENSE XFMR 1:1:50 15A SMD
- Series：5500
- Mfr：Murata Power Solutions Inc.
- Package：Tape & Reel (TR)
- Frequency Range：50kHz ~ 500kHz
- Type：Invasive
- Inductance：3.8 mH
- ET (Volt-Time)：-
- Current Ratio：-
- DC Resistance (DCR)：2.3mOhm Primary, 350mOhm Secondary
- Ratings：-
- Mounting Type：Surface Mount
- Size / Dimension：0.575" L x 0.496" W (14.60mm x 12.60mm)
- Height - Seated (Max)：0.280" (7.10mm)
- Termination Style：-
- Turns Ratio - Primary:Secondary：1:01:50
- Current Rating (Amps)：15 A
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Overview
The 55050C-R is a surface-mount current sense transformer manufactured by Murata Power Solutions. It features a 1:1:50 turns ratio and supports a rated current of 15 A. The component operates within a frequency range of 50 kHz to 500 kHz. Key electrical specifications include an inductance of 3.8 mH, a primary DC resistance of 2.3 mOhm, and a secondary DC resistance of 350 mOhm. The physical dimensions are 14.60 mm in length, 12.60 mm in width, and a maximum height of 7.10 mm.
Feature Summary
- Provides galvanic isolation for current sensing applications via a 1:1:50 turns ratio configuration.
- Designed for surface-mount technology (SMD) installation on printed circuit boards.
- Operates effectively within high-frequency ranges from 50 kHz to 500 kHz.
Applications
- Current sensing in switching power supplies
- Overcurrent protection circuits
- Feedback control loops in DC-DC converters
Procurement Notes
Verify the obsolete status of this component with authorized distributors before finalizing design-in decisions. Confirm availability through official Murata channels or certified partners. Ensure that any substitute components meet identical electrical and mechanical specifications to maintain system integrity and compliance with original design requirements.
Selection Notes
Select this component when a 15 A rated current and 1:1:50 transformation ratio are required for board-mounted current monitoring. Consider the 3.8 mH inductance and 50 kHz to 500 kHz operating range for compatibility with specific switching frequencies. Evaluate the SMD package dimensions against available PCB real estate constraints during the layout phase.
Part Context
This part belongs to the 55000 series of current sense transformers from Murata Power Solutions. These devices are engineered for compact electronic designs requiring precise current measurement. The series typically offers various turns ratios and current ratings to suit different power management architectures.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Consult manufacturer resources for potential obsolescence management strategies or equivalent alternatives.
