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Product Detailed Parameters
- Description：CURR SENSE XFMR 1:40 10A SMD
- Series：5300
- Mfr：Murata Power Solutions Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Frequency Range：50kHz ~ 500kHz
- Type：Invasive
- Inductance：320 µH
- ET (Volt-Time)：-
- Current Ratio：-
- DC Resistance (DCR)：7mOhm Primary, 1.1Ohm Secondary
- Ratings：-
- Mounting Type：Surface Mount
- Size / Dimension：0.283" L x 0.327" W (7.20mm x 8.30mm)
- Height - Seated (Max)：0.213" (5.40mm)
- Termination Style：Gull Wing
- Turns Ratio - Primary:Secondary：1:40
- Current Rating (Amps)：-
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Overview
The 53040C is a surface mount current sense transformer from the 5300 series, designed for high-accuracy AC current sensing. It features a 1:40 turns ratio and operates within a frequency range of 50kHz to 500kHz. The component has a primary DC resistance of 7 milliohms and a secondary DC resistance of 1.1 ohms. Secondary inductance is specified at 320 µH. The package dimensions are 7.20mm x 8.30mm with a maximum height of 5.40mm.
Feature Summary
- High-accuracy current sensing capability for AC signals
- Compact surface mount footprint suitable for dense PCB layouts
- Wide operating frequency range supporting high-speed switching applications
Applications
- Current monitoring in power supply circuits
- Overcurrent protection systems
- Feedback control loops in switch-mode power supplies
Procurement Notes
Verify the specific ordering suffix (e.g., -2 for tape and reel, -1 for cut tape) against your assembly requirements. Confirm that the 5.40mm maximum height fits within your board clearance constraints. Ensure the 50kHz lower frequency limit aligns with your application's switching speed. Check RoHS3 compliance status if required by your manufacturing standards.
Selection Notes
Select this component when precise AC current measurement is needed in a small form factor. The 1:40 ratio provides significant signal amplification for downstream sensing. Consider the 320 µH secondary inductance for low-frequency response characteristics. Evaluate the 7mΩ primary resistance impact on circuit efficiency. Compare against through-hole alternatives if space permits.
Part Context
Part of Murata's 5300 series of compact current sense transformers. Designed for modern electronics requiring miniaturization without sacrificing measurement accuracy. Complements other magnetic components in power management designs.
Replacement Considerations
Check Murata datasheets for alternative part numbers within the 5300 series offering different ratios or packages. Verify compatibility with existing PCB footprints before substitution.
