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EFD25 Ferrite Core Transformer Horizontal BobbinEFD25 5+6pin lead free bobbin for electronic transformer. Bobbin Size=34.0mmX25.0mmX13.9mm. Parallel distance=30.5mm. Pin pitch1=5.0mm. Pin pitch2=4.0mm. Bobbin with PM9820 material. We have bobbin tooling now.