How to Compare Electronic Component Quotations: A Buyer’s Checklist Before PO Approval
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Quick answer: Compare electronic component quotations only after each offer matches the same BOM requirement. Check the full manufacturer part number, orderable quantity, shipment packaging, date-code and traceability requirements, delivery basis and commercial terms. Keep unknowns visible. A lower price cannot clear an unapproved substitute or a missing acceptance requirement.
This pre-PO checklist is for OEM, EMS and PCBA procurement teams working with engineering and quality. It is a suggested review process, not a supplier certification, a live quotation or a promise of stock, delivery or product authenticity.
For the wider RFQ-to-approval workflow, use the electronic component BOM sourcing guide. This page focuses on comparing the offers received for one defined requirement.
1. Copy this electronic component quote comparison checklist
Use a separate record for each BOM line and each materially different supply option. Add the actual answers from Quote A and Quote B beside these fields. Record unknown where a supplier has not answered; do not convert a blank into an assumed pass. On a phone, scroll the table horizontally.
| Field | Record for each offer | Question that must be resolved |
|---|---|---|
| Manufacturer and full MPN | Manufacturer, complete ordering code, BOM revision and approved part reference. | Is this the required orderable part, including every suffix, or a separately proposed alternate? |
| Device package and grade | Package variant, temperature or qualification grade and the supporting manufacturer reference. | Has engineering accepted every difference from the approved BOM? |
| Shipment packaging | Reel, cut tape, tube or tray; quantity per pack; original or repacked condition; handling fees. | Will the quoted delivery format meet the receiving and assembly requirements? |
| Quantity, MOQ and multiples | Required and quoted pieces, minimum order quantity, pack quantity and permitted order increments. | What quantity can actually be ordered, and what does any MPQ or SPQ field mean in this offer? |
| Price and validity | Unit basis, quantity break, currency, quote number, revision, expiry and extra charges. | Are both offers priced for the same quantity and scope, and is the price still valid? |
| Stock basis | Supplier's stated source, location, offered quantity, allocation conditions and confirmation time. | Is it seller-controlled material, an upstream offer, incoming supply or a production estimate? |
| Delivery dates | Lead-time starting event, expected dispatch, transport allowance, required arrival and partial-shipment plan. | Does the quoted timing cover the full quantity and arrival requirement? |
| Date code and lots | Proposed range, mixed-lot policy, available lot references and customer acceptance requirement. | Is the answer tied to the offered material, and are any exceptions accepted? |
| Traceability and inspection | Required documents, issuer, lot coverage, evidence references, inspection scope and delivery stage. | What is available before approval, and what must be checked before shipment or at receipt? |
| Storage and handling | Applicable moisture-sensitivity level, packaging condition and available storage or repacking records. | Does quality need to review an unknown history or handling exception? |
| Lifecycle and substitutes | Manufacturer status source and check date; discontinuance notice or alternate approval where relevant. | Is the supply plan suitable for this build, and is any BOM change formally approved? |
| Terms and responsibility | Payment, freight scope, agreed trade term/place/version, cancellation, returns and nonconformance process. | Do the quotation, intended PO and agreed acceptance conditions match? |
Assign an owner and a due date to each unresolved field. Documents generated only at dispatch cannot be treated as already reviewed: agree the required document and the release or receiving check at which it must be verified.
2. Normalize the quantity and commercial basis
Device package and shipment packaging are different fields. A package description such as SOIC does not tell the buyer whether the shipment is a full reel or cut tape. Keep the full ordering code and delivery format together, then compare prices per piece at the quantity that can actually be purchased.
MOQ is a minimum order quantity; it does not by itself define a full-pack quantity or permitted order increment. Ask the supplier to define MPQ, SPQ and any other abbreviated field rather than assuming those labels have identical meanings across quotes. TI's backlog ordering documentation, for example, lists MOQ and standard pack quantity separately. Its direct-customer rules are not this store's terms.
Illustrative quantity check: a build needs 1,200 pieces, while an offer requires full 2,500-piece packs. Unless a smaller quantity is explicitly available, record a 2,500-piece purchase and 1,300 pieces beyond this build's demand. Compare the cash commitment and approved use for the remainder with a 1,200-piece offer. No price or saving is implied by this example.
List the extended component amount and each known additional charge separately: packaging or re-reeling, agreed inspection, freight and other stated costs. If offers use different currencies, record the buyer's conversion rate and date. Leave unresolved costs marked as unknown; a subtotal with missing charges is not a complete landed-cost comparison.
3. Separate a stock claim from a delivery commitment
Write down what the supplier is actually offering. A website listing, a supplier-held lot, an upstream quotation and a factory replenishment estimate are different evidence bases. Ask for dated confirmation of the quantity, allocation conditions and any dependency on a third party. A photograph alone does not show that the material has been reserved for your PO.
Replace an ambiguous lead-time entry with questions: From which event does the clock start? Is the answer a dispatch estimate or an arrival estimate? Does it apply to all pieces? Are partial deliveries allowed? Separate the supplier's expected dispatch from transit and your required receiving date. A timestamped estimate is still an estimate unless a commitment has actually been agreed.
Illustrative clarification: two offers both say “five days.” One may mean dispatch after payment; the other may mean transit after dispatch. Do not rank them as equal until their starting event, quantity coverage and destination assumptions are clear.
4. Review date code, packaging and traceability together
Record the actual customer requirement for date-code range, mixed lots and handling. Do not replace it with an undefined request for “new date code.” Conversely, do not use date code alone as a pass/fail test for storage condition or authenticity. TI's product shelf-life guidance identifies storage, materials, moisture sensitivity and protective packaging as relevant factors. That guidance is not proof of the storage history of a third-party lot.
For moisture-sensitive material, ask quality to review the applicable manufacturer instructions and the evidence available for moisture-barrier packaging, exposure, storage and repacking. Do not invent a universal expiry window or a baking procedure from the date code. Any handling decision belongs to the qualified team using the requirements for the actual device and packaging.
For each document, record its issuer, reference, actual material coverage and availability stage. A general company certificate is not a lot-specific custody record. A test report supports only the samples and checks it describes; it is not automatic proof that every piece passed every requirement. The component traceability buyer checklist provides a more detailed evidence review.
When authorization is claimed, check the named manufacturer and applicable channel directly. For example, ADI's authorized distributor information is a manufacturer source for ADI channels. Linking to that directory does not claim that this store or a quoted supplier is authorized.
5. Keep lifecycle, alternate approval and terms explicit
Check the manufacturer's current status and relevant notices for the actual ordering code. TI's product lifecycle definitions distinguish Active, NRND, Last Time Buy and Obsolete. Treat lifecycle status separately from a supplier's delivery evidence: an Active label does not confirm allocation for this PO. For an EOL line, use the EOL BOM sourcing decision guide to document the accepted route rather than assuming every case requires the same purchase or redesign decision.
Keep a proposed alternate on a separate line until engineering and any required customer approver have accepted it. Similar names, channel counts or packages are not an approval record. The LM358BIDR, OPA2333AIDR and AD8032ARZ-REEL7 selection comparison illustrates why the actual signal task matters when reviewing apparently comparable op amps; it does not authorize a substitution.
Record payment timing, cancellation or rescheduling restrictions, any non-cancellable/non-returnable conditions, return procedures and the agreed route for shortages or nonconformance. Ask the contract owner to resolve unclear or conflicting terms before release. This checklist does not set this store's warranty or commercial policy.
If an Incoterms rule is agreed, record the named place or point and version as well as the rule. ICC's explanation of Incoterms and commercial contracts distinguishes delivery responsibilities, risk and cost allocation from matters such as payment and ownership. Do not treat three letters as a complete agreement; this is a field check, not legal advice.
6. Apply approval gates before ranking acceptable offers
Use these suggested statuses with your company's approval policy. A weighted score must not cancel a mandatory requirement: a low price cannot compensate for an incorrect MPN, an unapproved alternate or missing evidence that quality requires before release.
| Status | Use when | Next action |
|---|---|---|
| Hold for clarification | The quote is expired, internally inconsistent or missing a mandatory answer. | Buyer requests a corrected, versioned quote or the missing evidence. Keep the line out of release. |
| Engineering or quality review required | An alternate, grade, packaging, storage or acceptance exception needs technical disposition. | Record the named review owner, validation or acceptance requirement and written outcome. |
| Ready for buyer approval | The requirement and commercial basis are clear; required pre-approval checks and exception approvals are complete. | Authorized buyer compares acceptable options and records the decision, outstanding shipment/receipt checks and approval reference. |
“Ready” is not a promise of delivery or a replacement for the buyer's authority. If a supplier revises the part, quantity, lot basis, timing or terms, return the affected fields to review rather than carrying forward an approval for a different offer.
7. Copy this per-offer review record into your RFQ or PO file
The blank template below is intentionally unfilled. Duplicate it for each offer; do not put an assumed pass into an empty evidence field.
BOM line / revision: Manufacturer / full MPN / approved-part reference: Device package / grade: Shipment packaging / pack quantity / condition: Required pieces / quoted pieces / MOQ / order increment: Supplier definition of MPQ or SPQ (if used): Quote number / revision / date / expiry: Unit price / currency / quantity break / known extra charges: Unresolved costs and comparison assumptions: Stock claim / source basis / quantity / confirmation time: Lead-time starting event / dispatch / transit / required arrival: Partial shipments / allocation conditions: Date-code range / lot mix / evidence reference: Traceability and inspection documents / issuer / coverage: Evidence due before approval / shipment / receipt: MSL / storage or repacking evidence / quality disposition: Lifecycle source / check date / mitigation if needed: Alternate or other exception / approval reference: Payment / freight / trade term + place + version: Cancellation / returns / nonconformance process: Open question / owner / due date: Decision / authorized approver / approval date: Checks still required at shipment or receipt:
Frequently asked questions
Can I compare quotations before every answer is available?
Yes, as a provisional comparison with unknowns and assumptions visible. Do not label the offer ready for approval if a mandatory pre-approval requirement is still unresolved.
Are MOQ and MPQ the same thing?
Not necessarily. Record the minimum order, pack quantity and order increment separately, and ask the supplier to define MPQ in its quotation. The abbreviation alone is not enough to decide what quantity you can buy.
Does a recent date code prove that a lot is acceptable?
No. Review the agreed date-code requirement alongside traceability, storage, packaging and the applicable receiving criteria. Date code alone does not establish authenticity or handling history.
Can the lowest-priced alternate go straight onto the PO?
Not as a replacement for the approved part without the required technical and customer approvals. Keep it as a separate candidate until its suitability and the BOM change are accepted.
Prepare a quote review request
Use the BOM sourcing service information to organize your requirement, or contact the sourcing team with the full MPN, quantities, target arrival, permitted packaging, traceability requirements and substitution restrictions. Availability, pricing, evidence and terms must be confirmed for the actual request; this article does not quote them.
Prepared by Shen Zhen Kua Yang Sheng Tai Trading Co., Ltd.