# NA5889-ALD (Component) ## Description Coilcraft NA5889-AL is a high-frequency isolated flyback transformer designed specifically for Texas Instruments TPS55340 Boost/SEPIC/Flyback DC-DC converter applications. Optimized for operation around 200 kHz with input voltages from 2.9 V to 32 V, it provides galvanic isolation of up to 1500 Vrms between primary and secondary windings. The transformer features ferrite core construction, low primary DCR, tightly controlled turns ratio, and compact surface-mount packaging. It is intended for isolated power supply designs requiring efficient energy transfer, compact size, and reliable operation in industrial, embedded, communication, instrumentation, and power conversion applications. Typical output configuration supports isolated 12 V at 1 A when used in the reference TPS55340 flyback design. Search Keywords: NA5889-AL, Coilcraft flyback transformer, TPS55340 transformer, isolated DC-DC transformer, flyback converter transformer, SMPS transformer, power transformer SMD, 1500Vrms isolation transformer, Coilcraft NA5889, flyback magnetics, isolated power supply transformer, ferrite transformer, switch mode power supply transformer, DC DC converter magnetics, TPS55340 flyback design Hashtags: #NA5889AL #Coilcraft #FlybackTransformer #Transformer #SMPS #DCDCConverter #TPS55340 #PowerElectronics #IsolatedPowerSupply #Magnetics #FerriteCore #EmbeddedPower #IndustrialElectronics #PowerSupplyDesign #SwitchingPowerSupply #ElectronicsDesign #PowerConversion #SMDTransformer #ElectronicComponents #HardwareDesign ## Component Details - **Owner:** cherepanyadima - **Created:** 6/14/2026 - **Last Updated:** 6/14/2026 - **Visibility:** Public - **Part Type:** Inductor - **Datasheet URL:** https://storage.googleapis.com/graviton-electric-symbols/document_assets/user-uploaded/545a3334ac9fc8a4701844d1df294f9a97ec107eca9e6058c9919a77b011bccd.pdf - **Manufacturer Part Number:** NA5889-ALD - **Manufacturer Name:** COILCRAFT - **Used in:** 1 project ## Distributor Pricing (qty 1) *Pricing shown for quantity 1. For price breaks and other quantities, open in Flux.* | Distributor | Unit Price (qty 1) | Stock | |------------|--------------------|-------| | [Mouser](https://www.mouser.com/en/ProductDetail/Coilcraft/NA5889-ALD?qs=W38ilblRkRlYXqHPwmHU%2FQ%3D%3D) | $6.94 | 0 | - **Part Type:** Inductors - **Sub-Type:** Fixed - **MPN:** NA5889-ALD - **Mount Type:** Surface Mount - **Package / Case Code:** TO - **Pin Count:** 10 ## Pins | Pin | Name | Type | |-----|------|------| | 1 | PRI_1 | | | 2 | PRI_2 | | | 3 | PRI_3 | | | 4 | PRI_4 | | | 5 | PRI_5 | | | 6 | SEC_1 | | | 7 | SEC_2 | | | 8 | SEC_3 | | | 9 | SEC_4 | | | 10 | SEC_5 | | --- *Generated from [https://www.flux.ai/cherepanyadima/na5889-ald](https://www.flux.ai/cherepanyadima/na5889-ald)*