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BackA battery holder Keystone Battery Holder BH-331P Battery Type 3xAAA Keystone type 3008 coin cell vertical Panasonic CR-1632-V1AN battery, https://industrial.panasonic.com/cdbs/www-data/pdf2/AAA4000/AAA4000D464.PDF battery CR-1632 coin cell holder Keystone Battery Holder BH-331P Battery Type.
- FNR4020S, 4.0x4.0x2.0mm, https://datasheet.lcsc.com/lcsc/1806131217_cjiang-Changjiang-Microelectronics-Tech-FNR5040S3R3NT_C167960.pdf Inductor, Changjiang.
- -4.80907 0.598972 21.7653 vertex 4.71011 0.41258.