ONE SHARED RECORD ACROSS SOURCING AND ENGINEERING
Turn a sample review into traceable evidence and open actions.
The checklist gives procurement, engineering, quality and the supplier one sequence for identity, mechanical fit, wiring, application evidence, observations and closure. It does not replace the exact drawing or product documents.
Use the same checklist in the meeting, at the bench and in the RFQ.
Includes project fields, six-row measurement table, conductor and rating requirements, six document rows, open-action table, decision states and four sign-offs.
EIGHT-STAGE REVIEW PATH
Each stage names the evidence needed to close it.
Use the page as the preparation guide and the PDF as the review record. Leave an item open when evidence is missing; never convert “unknown” into “pass.”
- 01
Project and sample identity
Record the project, customer, reviewer, date, exact YIHENTRA model and suffix, legacy reference, sample quantity and supplier contact.
EVIDENCE: Request, sample label, product marking and traceable review record. - 02
Configuration and mating
Check family, pitch, positions, mounting, wire-entry direction, plug/header pairing, keying, latch, flange, color and ordered options.
EVIDENCE: Exact model drawing, counterpart identity, photos and ordered configuration. - 03
Mechanical and PCB interface
Compare pitch, first-to-last span, pin and hole sizes, row layout, housing envelope, PCB seating, enclosure and access paths.
EVIDENCE: Measured samples, PCB drawing, housing drawing and fit observation. - 04
Conductor preparation and termination
Record wire marking, AWG/mm², conductor construction, ferrule, strip length, torque or actuation, driver and process control.
EVIDENCE: Exact product data, production-intent wire, tool setting and wired sample. - 05
Electrical and application requirements
Close current, voltage, temperature, environment, target market, standard context and required material or flammability evidence.
EVIDENCE: Exact-model ratings, application requirements and applicable evidence. - 06
Required document package
Track the drawing, data sheet, market approval evidence, material/compliance declarations, wiring instruction and sample record by revision.
EVIDENCE: Document number, revision, source, verifier and verification date. - 07
Sample and functional observations
Record visible condition, PCB seating, solder access, mating/retention, conductor insertion/release and any separately defined tests.
EVIDENCE: Photos, measurement record, test method, result and exact counterpart. - 08
Open actions and release decision
Assign each difference, owner, due date and closure evidence; then mark approved, conditionally approved or rejected for the next stage.
EVIDENCE: Closed-action record and procurement, engineering, quality and supplier response.
USE THE CHECKLIST WITH CURRENT MODEL EVIDENCE
Move from measured sample to drawing, installation data and RFQ.
WHY DRAWINGS, SPECIFICATIONS AND APPROVALS STAY SEPARATE
Manufacturer product pages organize evidence by purpose.
These official examples support the checklist structure. Their product values are not transferred to a YIHENTRA model or used as a certification claim.
SAMPLE APPROVAL FAQ
What this checklist can—and cannot—close.
Does sample approval prove terminal block certification?
No. A physical sample and internal checklist cannot prove a third-party certification, market compliance or every electrical and environmental condition. Required evidence must be verified separately.
Can a sample be approved from appearance and pitch alone?
No. Check the exact model, suffix, drawing, pin layout, housing, mating pair, wire entry, conductor acceptance, ratings, documents and the intended PCB and enclosure.
Why does the checklist include open actions?
A sample may reveal differences or missing evidence. Recording an owner, due date and closure evidence prevents a conditional approval from being mistaken for complete release.
Is the PDF a fillable online form?
No. It is a static three-page A4 checklist designed for printing, handwriting or use as a shared review agenda. The website does not receive or store entries made on it.
What should be sent to YIHENTRA with the checklist?
Send the exact model or reference, PCB/drawing, pitch, positions, conductor, ratings, quantity, market, required documents and the unresolved findings. Do not send sensitive information unless needed for the inquiry.
Can the checklist replace the current product drawing?
No. It organizes the review. The exact current product drawing and applicable product/application documents remain the design and approval evidence.
SEND THE OPEN FINDINGS WITH THE MODEL
Turn conditional approval into a clear supplier action list.
Include the reference, PCB/drawing, conductor, ratings, quantity, target market, required documents and unresolved differences.