1. Distinguish ceramic-resonator identity
Start with the actual supply item and full manufacturer identifier. A loose timing component, a powered oscillator product and an assembly containing a timing circuit are different deliverables. A warehouse category such as crystal can obscure those differences. Keep original pack wording, readable markings and any purchase reference together without using the internal inventory category as the final manufacturer classification.
For the identified product, retain the ceramic-resonator category where its applicable documentation supports it. Murata's CERALOCK application description provides the relevant example here. It should not be stretched to identify every small frequency-marked item as CERALOCK, or to assign ceramic construction to an unrelated manufacturer's component. The complete offered reference is the link between the source description and the released group.
Keep a frequency marking in a separate field. It can help locate the correct product documentation, but it does not settle whether the item is a ceramic resonator, crystal unit or oscillator product. If the code or product category remains uncertain, preserve the original reading and identify the missing evidence. Do not merge unidentified material into a crystal group simply to produce one convenient total.
2. Preserve documented integrated capacitance
Murata's application-page discussion of simple circuit configuration describes built-in capacitors in its CERALOCK example. Retain this as a documented integrated feature of that product context. The distinction matters when a stock record otherwise says only resonator: the recipient should be able to see whether integration is supported by the applicable reference or still an unresolved part of identification.
Match the exact offered variant to the appropriate product description before filling the integrated-capacitance field. An application example can explain the question but cannot complete an unknown variant's identity. If a purchase record names a series while the loose component has an incomplete marking, state which level of information is supported and request the missing link rather than assigning the example's feature to the whole container.
Do not use terminal count, a package outline or a board photograph as a universal integrated-capacitor decoder. Preserve those observations for the technical reviewer, but keep the manufacturer's feature description as a distinct reference. This guide supplies no electrode assignments or interpretation of a circuit diagram. An integration field can remain incomplete without pretending that a visual observation establishes the electrical arrangement.
3. Separate integration from circuit approval
An integrated-capacitor description identifies a documented feature. It does not establish the load requirement of an unknown circuit or show that the product can replace a crystal unit in another design. Retain the intended circuit question separately when a potential buyer asks about use. The stock identification should not silently become an engineering decision about external components or connection changes.
Keep existing board records attached to their assembly identifiers and revisions. If an owner states that the product was used in a particular instrument, record that as history rather than a general replacement approval. A previous circuit arrangement does not supply all the information needed to evaluate a different oscillator circuit. Do not copy the application example into an offer as a promised installation result.
Separate the identified feature from actual condition evidence. Original packing, prior mounting or visible body and terminal issues describe the released material where observed. Any existing timing assessment needs its covered units, date and stated conditions. Neither a frequency marking nor a documented integration feature supplies a new frequency, stability or operating result for the offered units.
4. Offer supported resonator groups
Group supported ceramic-resonator identities separately from crystal units, oscillator products and unresolved items. Retain the integrated-capacitance description only for the quantities connected to applicable references. If several packs share a broad warehouse category but have different exact codes, preserve those differences until documentation resolves each variant. Do not extend one example's feature to unidentified items in the same storage area.
Use the general stock-list guide for actual quantity, location, packaging and release authority. The related timing guide establishes supply categories and their distinct fields; this review adds the specific ceramic-resonator and integration question. A useful submission names the supported category, full code, evidence for built-in capacitance and any missing variant information, without reconstructing an absent circuit specification.
For an ICULTRA timing-stock enquiry, send those supported groups and the permitted original references. Ask which unresolved identities need further documentation before assessment. Classification does not establish current timing performance, a compatible substitute or an agreed buyback. Any acceptance, further evaluation and commercial terms must relate to the actual released material and be confirmed separately from the manufacturer's application example.
Sources and further reading
Manufacturer documents support the technical guidance above. They do not confirm our stock, authorisation or the condition of any offered lot.