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Product Detailed Parameters
- Description：CURR SENSE XFMR 20:1 10A SMD
- Series：ECST
- Mfr：Eaton - Electronics Division
- Package：Tape & Reel (TR),Cut Tape (CT)
- Frequency Range：50kHz ~ 1MHz
- Type：Invasive
- Inductance：80 µH
- ET (Volt-Time)：-
- Current Ratio：-
- DC Resistance (DCR)：700mOhm Primary, 400mOhm Secondary Max
- Ratings：-
- Mounting Type：Surface Mount
- Size / Dimension：0.330" L x 0.315" W (8.38mm x 8.00mm)
- Height - Seated (Max)：0.217" (5.50mm)
- Termination Style：Gull Wing
- Turns Ratio - Primary:Secondary：20:01
- Current Rating (Amps)：10:00 AM
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Overview
The ECST1V0805-1020-R is a surface-mount current sense transformer from Eaton Electronics, designed for monitoring alternating currents up to 10 A. It features a turns ratio of 20:1 and an inductance of 80 µH. The device operates within a frequency range of 50 kHz to 1 MHz. Electrical characteristics include a primary resistance of 700 mΩ and a secondary resistance of 400 mΩ. The component supports SMD/SMT installation with dimensions of 8.38 mm length, 8 mm width, and 5.5 mm height. It functions reliably between -40°C and +125°C.
Feature Summary
- Provides galvanic isolation while measuring AC currents via magnetic coupling.
- Optimized for high-frequency operation between 50 kHz and 1 MHz.
- Designed for direct surface-mount integration onto printed circuit boards.
Applications
- Current sensing in switch-mode power supplies
- Overcurrent protection circuits in electronic systems
- Active PFC (Power Factor Correction) control loops
Procurement Notes
Verify the specific suffix against official Eaton documentation to confirm electrical tolerances and packaging options. Ensure the selected variant matches the required operating temperature range and current rating for the target application. Cross-reference datasheet parameters with system design requirements before finalizing procurement orders.
Selection Notes
Select this component when a 20:1 turns ratio and 10 A maximum current capacity are required for high-frequency applications. Consider the physical footprint constraints and the need for galvanic isolation in the circuit design. Evaluate the thermal performance limits relative to the expected ambient operating conditions.
Part Context
This part belongs to the ECST series of current sense transformers manufactured by Eaton Electronics. These components are engineered for compact PCB layouts and provide accurate current feedback for power management applications. The series offers various ratios and current ratings to suit different circuit architectures.
Replacement Considerations
Consult Eaton's official cross-reference guides for verified substitutes. Alternative parts must match the 20:1 ratio, 10 A rating, and 80 µH inductance specifications to ensure functional compatibility without redesigning the surrounding circuitry.
FAQ
What is the maximum primary current rating for this transformer?
The ECST1V0805-1020-R is rated for a maximum primary current of 10 A.
Does this component support surface-mount technology?
Yes, the ECST1V0805-1020-R is designed specifically for SMD/SMT installation on printed circuit boards.
