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Product Detailed Parameters
- Description：XFMR ISOL BUCK DC/DC CON 18UH SM
- Series：-
- Mfr：Coilcraft
- Package：Strip
- Type：For DC/DC Converters
- Applications：Isolated Buck Converters
- Intended Chipset：A6986I, L6986I
- Chipset Manufacturer：STMicroelectronics
- Voltage - Primary：-
- Voltage - Auxiliary：-
- Voltage - Isolation：3300Vrms
- Inductance @ Frequency：18µH @ 500kHz
- Frequency：500kHz
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Size / Dimension：-
- Height - Seated (Max)：0.450" (11.43mm)
- Footprint：0.600" L x 0.531" W (15.24mm x 13.50mm)
- Style：-
- Grade：-
- Qualification：-
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Overview
The ZA9668-AED is a flyback transformer designed for isolated buck converters and DC/DC applications. It features an 18µH inductance measured at 500kHz and provides 3300Vrms isolation between primary and secondary windings. The component utilizes ferrite core material and supports an operating temperature range of -40°C to +125°C. Key electrical specifications include a turns ratio of 1:5.8, a secondary rating of 29V at 0.2A, and a leakage inductance defined with shorted secondary windings. It is intended for use with specific chipsets such as the A6986I and L6986I.
Feature Summary
- Provides high-voltage isolation suitable for safety-critical power conversion
- Optimized for isolated buck converter topologies
- Designed for surface mount assembly on printed circuit boards
Applications
- Isolated Buck Converters
- DC/DC Converter Modules
- SMPS Transformer Applications
Procurement Notes
Verify the complete part number including the suffix to ensure correct winding configuration and isolation ratings. Confirm compatibility with the target chipset, such as the A6986I or L6986I, before integration. Check datasheet specifications for leakage inductance limits and thermal performance requirements relative to the final application environment.
Selection Notes
Select this component when designing isolated buck converters requiring high isolation voltage and specific inductance values at 500kHz. Ensure the secondary current and voltage ratings meet the load requirements. Verify that the footprint and pinout align with the PCB design constraints for surface mount technology.
Part Context
This component belongs to the ZA9668 series of power transformers manufactured by Coilcraft. These components are engineered for switch-mode power supplies and offer reliable magnetic coupling for isolated power architectures. The series includes variants tailored for different voltage ratios and inductance values.
Replacement Considerations
Consult official Coilcraft documentation for direct substitutes within the ZA9668 series. Verify that any alternative part matches the required inductance, isolation voltage, and physical dimensions.
