BS EN 61837-4:2015 Surface mounted piezoelectric devices for frequency control and selection. Standard outlines and terminal lead connections. Hybrid enclosure outlines
EN 61240:2012 Piezoelectric devices - Preparation of outline drawings of surface-mounted devices (SMD) for frequency control and selection - General rules*, 2023-12-21 Update
BS EN 61837-4:2015 history
2015BS EN 61837-4:2015 Surface mounted piezoelectric devices for frequency control and selection. Standard outlines and terminal lead connections. Hybrid enclosure outlines
2004BS EN 61837-4:2004 Surface mounted piezoelectric devices for frequency control and selection - Standard outlines and terminal lead connections - Hybrid enclosure outlines