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GB/T 14860.3-2012 Transformers and inductors for use in electronic and telecommunication equipment—Part 3:Sectional specification for power transformers on the basis of the capability approval procedure $180.00 via email in 1~3 business day valid
GB/T 14860.4-2012 Transformers and inductors for use in electronic and telecommunication equipment—Part 4:Sectional specification for power transformers for switched mode power supplies(SMPS)on the basis of the capability approval procedure $300.00 via email in 1~5 business day valid
GB/T 15290-2012 Generic specification of power supply transformers and filter chokes for use in electronic equipment $540.00 via email in 1~3 business day valid
GB/T 18909-2002 Sectional specification for high-frequency inductors and intermediate frequency transformers for use in electronic equipment for capability approval $300.00 via email in 1~3 business day valid
GB/T 19404-2003 Microwave ferrite components—Measuring methods for major properties $135.00 via email in 1~3 business day valid
GB/T 20872-2007 Dimensions of low-profile cores made of magnetic oxides $100.00 via email in 1~3 business day valid
GB/T 20873-2007 PM-cores made of magnetic oxides and associated parts-dimentsions $240.00 via email in 1~3 business day valid
GB/T 20874-2007 Calculation of the effective parameters of magnetic piece parts $220.00 via email in 1~3 business day valid
GB/T 28864.1-2012 Terms and nomenclature for cores made of magnetically soft ferrites - Part 1: Terms used for physical irregularities $330.00 via email in 1~3 business day valid
GB/T 28864.2-2012 Terms and nomenclature for cores made of magnetically soft ferrites - Part 2: Reference of dimensions $110.00 via email in 1~3 business day valid
GB/T 28868-2012 Dimensions of uncoated ring cores of magnetic oxides $120.00 via email in 1~3 business day valid
GB/T 28869.1-2012 Cores made of soft magnetic materials - Measuring methods - Part 1：Generic specification $90.00 via email in 1~3 business day valid
GB/T 28869.2-2023 Cores made of soft magnetic materials—Measuring methods—Part 2: Magnetic properties at low excitation level $435.00 via email in 1~5 business day valid
GB/T 28869.3-2023 Cores made of soft magnetic materials—Measuring methods—Part 3: Magnetic properties at high excitation level $645.00 via email in 1~5 business day valid
GB/T 36103.1-2018 Ferrite cores—Dimensions—Part 1: General specification $120.00 via email in 1~3 business day valid
GB/T 36103.14-2018 Ferrite cores—Dimensions—Part 14: EFD-cores for use in power supply applications $160.00 via email in 1~3 business day valid
GB/T 36103.7-2018 Ferrite cores—Dimensions—Part 7: EER-cores $160.00 via email in 1~3 business day valid
GB/T 40675.1-2021 Noise suppression sheet for digital devices and equipment—Part 1:Definitions and general properties $120.00 via email in 1~3 business day valid
GB/T 40675.2-2021 Noise suppression sheet for digital devices and equipment—Part 2:Measuring methods $450.00 via email in 1~5 business day valid
GB/T 40675.3-2021 Noise suppression sheet for digital devices and equipment—Part 3: Characterization of parameters of noise suppression sheet $165.00 via email in 1~3 business day valid
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