Old Part Numbers Mapped to New

When our two companies came together ( our story) we had to consolidate two different standard product lines and two different part numbering systems into one.  We largely adopted the original Piezo Systems part numbering scheme but made some small changes to accommodate Mide's standard products and convey more consistent information.

Standard Product Part Numbering Convention

A part number effectively describes the full product.  An example with variables is: PLTT-MMSS-AAAAXB

• P - Defines the packaging, T for standard, Q for quick mount, D for double quick mount, and S for sealed
• L - Number of piezo layers
• TT - Thickness of the complete package measured in mils (thousandths of an inch)
• MM - Piezo material, either H5 for PZT 5H and A5 for PZT 5A
• SS - Shim material, either BR for brass, SS for stainless steel, FR for FR4, NO for none, and CF for carbon fiber
• AAAA - The length then the width of the piezo measured in tenths of an inch. For example, 1107 means the piezo area is 1.1" x 0.7" 
• X - Poling direction
• B - Mode of operation, B for a bender, E for an extender, A for all/both (four pins are available)

Let's use S233-H5FR-1107XB as an example:

• S - sealed
• 2 - 2 piezo layers
• 33 - 33 mils thick
• H5 - PZT-5H piezo material
• FR - FR4 shim/passive layer material
• 1107 - The piezo area is 1.1" x 0.7"
• X - X poling (in opposite directions)
• B - Bender

Discontinued Products

Some of the old standard products were discontinued because the sales were quite low and it did not make sense to continue supporting it as a standard product.  We can still produce these older standard products but that will require a custom build and therefore a minimum lot charge of typically $500 to $1,000 depending on the part.  

We also discontinued some of these standard products after recognizing that more often than not, customers needed custom sizes and configurations.  This meant that having a large number of standard products wasn't all that helpful, customers needed to have more direct control on specifying the size and configuration. This is why we introduced the  piezo customization tool which lets you specify the configuration and size of the piezo you need.  Keep in mind this will require a minimum lot charge of $500.  We need to make these units in "lots" and will therefore deliver the full lot at the end of manufacturing. 

Piezo Systems Old Part Numbers

The following table includes part numbers that were changed as part of the integration with Piezo Systems and Mide. 

Parts not included in this list were discontinued but can be ordered for custom jobs by using the customization tool.  If a large number are needed (over 25 units) we can honor the previously published pricing that may have been received in the past.  In general the old part numbering had the following convention.

All of the above part number properties should be directly transferable to the product builder with the exception of thickness and size.  Thickness of the overall transducer corresponds to the following piezo layer thicknesses:

• 15: 5 mil piezo
• 20: 7.5 mil piezo
• 26: 10 mil piezo
• 19: 7.5 mil ceramic and 1 layer of carbon fiber (only for carbon fiber bimorphs)
• 23: 7.5 mil ceramic and 2 layer of carbon fiber (only for carbon fiber bimorphs)
• 34: 10 mil ceramic and 3 layer of carbon fiber (only for carbon fiber bimorphs)

The size designations have the following meaning:

• -103: 1.25" x 0.125"
• -203: 1.25" x 0.25"
• -303: 1.25" x 0.50"
• -503: 2.50" x 1.25"

Mide Old Part Numbers