Three tiers move a passive component. The manufacturer makes it. An authorised
distributor buys direct under a written agreement, ships original sealed packaging, and can
trace every reel to a factory lot. A broker buys on the open market from whoever holds
stock, so traceability depends on what the previous holder kept. Only the first two carry a
factory trail.
Venatech Limited, an authorised Walsin distributor in Hong Kong, sits in the middle tier for
Walsin Technology (Walsin). This post explains what that tier can prove, what it cannot, and
how to tell the three apart from a quotation alone.
What is the difference between an authorised distributor and a broker?
The difference is the contract. An authorised distributor holds a written appointment from
the manufacturer and buys stock from the factory. A broker holds no appointment and buys
from the open market — excess inventory, cancelled orders, other distributors, other
regions. Both can ship real parts. Only one can name the lot.
That contract is what creates every downstream guarantee. Because the goods came from the
factory, the packaging is the factory’s, the lot code on the reel is the factory’s, and the
date code has not been re-printed by anyone in between. A broker’s stock may be perfectly
good, but the broker is attesting to it rather than the manufacturer.
The vocabulary varies by region. “Authorised” and “franchised” mean the same thing.
“Independent”, “open market” and “broker” also mean roughly the same thing. What matters is
not the label but the answer to one question: does the manufacturer confirm the relationship?
| Question on your RFQ | Manufacturer | Authorised distributor | Broker |
|---|---|---|---|
| Buys from the factory | n/a | Yes, under written appointment | No, from the open market |
| Original sealed packaging | Yes | Yes | Depends on the previous holder |
| Lot and date code traceable to a factory run | Yes | Yes | Sometimes, sometimes not |
| Certificate of Conformity from the channel | Yes | Yes, on request | Issued by the broker, not the factory |
| Can escalate a failure to the factory | n/a | Yes, through the appointment | Informally at best |
| Holds parts the public search tool does not list | Yes | Yes | Only if it happens to be in stock |
| Sells small quantities of a line the factory no longer runs | Rarely | Only while stock lasts | This is the main use case |
What does an authorised distributor actually get you?
Four things a broker structurally cannot offer: factory-sourced goods, unbroken original
packaging, full lot and date code traceability, and a Certificate of Conformity on request.
Venatech sources Walsin product through authorised channels only, with no grey market and no
unauthorised channels in the path.
Two of those four are physical and you can inspect them on arrival. The reel is in the
manufacturer’s own packaging, sealed and unbroken. The label carries the manufacturer’s lot
and date code, printed by the factory rather than applied afterwards.
The other two are documentary. Full lot and date code traceability means the paperwork ties
your delivery to a specific production run. A Certificate of Conformity, available on
request, states in writing that the goods conform to the manufacturer’s specification. If a
line later needs a containment action, those two documents are what make the containment
bounded rather than a full recall of everything you built that quarter.
There is also a technical dimension. Authorised distribution comes with access to the
manufacturer’s applications engineering, which is what makes part selection,
cross-reference, qualification support and AEC-Q200 support possible at all.
Can a broker sell genuine parts?
Yes, routinely. The open market exists because real inventory gets stranded — a programme
cancels, a forecast overshoots, a region over-orders. Those parts are genuine. The problem is
not that brokered parts are fake. The problem is that the chain of custody has gaps, and a
gap is where a counterfeit or a reworked part can enter.
Treat that as a risk to be managed, not as an accusation. The practical question for a buyer
is what evidence survives the journey. A reel that has passed through three holders may
still carry its original label, or it may have been re-reeled, re-labelled, baked, or
combined with a second lot to make up a quantity. None of that is visible in a quotation.
The risk is also unevenly distributed. It concentrates on parts that are hard to get, which
is exactly when a buyer is most tempted to skip the checks.
Why does the manufacturer’s own catalogue not list every real part?
Because a public parametric search tool is a marketing surface, not an inventory system.
Venatech’s stock snapshot dated 23 September 2026 covers 1,125 distinct part numbers. Of
those, 949 catalogue codes appear verbatim in Walsin’s downloadable parametric export. The
remaining 176 do not.
That gap is not an error in either file. It is the normal distance between a search tool and
a factory. Walsin’s own export omits the CT packaging suffix, so an exported part number is
not orderable as written. It inserts a space into some chip resistor part numbers. And whole
dielectric families barely appear in it at all.
| Stock line, 23 Sep 2026 | Order code | Catalogue code | Found in Walsin’s parametric export? | Match / mismatch |
|---|---|---|---|---|
| MLCC, 0201 X7R 100 pF 16 V | 0201B101K160CT |
0201B101K160 |
Yes, as 0201B101K160 |
Mismatch — export drops the CT suffix |
| MLCC specialty, HH high-Q | HH03N0R4B500CT |
HH03N0R4B500 |
Yes, as HH03N0R4B500 |
Mismatch — export drops the CT suffix |
| Chip resistor, 0402 general purpose | WR04X101JTL |
WR04X101JTL |
Yes, as WR04X101 JTL |
Mismatch — export inserts a space |
| Chip resistor, 1206 anti-surge | MF12E1R00FTL |
MF12E1R00FTL |
Yes, as MF12E1R00FTL |
Match — identical in both files |
| MLCC, 0402 Y5V 100 nF 10 V | 0402F104Z100CT |
0402F104Z100 |
No | Mismatch — no matching row in the export |
| Safety capacitor, X1/Y2 | S252B471K502ZT |
S252B471K502ZT |
No | Mismatch — ZT packaging form absent |
Unique to Venatech’s data. 73 of the 109 MLCC stock codes in the 23 September 2026
snapshot that have no matching row in Walsin’s parametric export carryFin the
dielectric position — the Y5V code. Walsin’s 24,026-row MLCC export lists exactly two Y5V
parts. A buyer working only from the downloadable catalogue would conclude Walsin barely
makes Y5V. A further 67 stock codes match the export only after deleting a space Walsin’s
own file inserts, as withWR04X101 JTL.
That is the practical reason to ask an authorised distributor rather than a search box. The
search box answers a question about the catalogue. The distributor answers a question about
the factory.
What paperwork should come with the parts?
Three documents, and you should be able to ask for all three before placing the order:
confirmation of the authorised relationship, the lot and date code for the specific delivery,
and a Certificate of Conformity. Venatech makes a Certificate of Conformity available on
request on Walsin product.
Read the date code as data, not as decoration. Across the 1,125 lines in the September 2026
snapshot, 683 carry a date code in the file itself. The authoritative code for every line is
the one printed on the original reel label, which is why unbroken packaging and the
certificate matter more than any spreadsheet.
Note also which code you are quoting. The snapshot separates Order code (PO) from
Catalogue code (website key), and they differ on 865 of the 1,125 lines — every one of
those being a part where the CT packaging suffix belongs on the purchase order and does not
belong in the catalogue search. A quotation that omits the suffix is quoting a catalogue key,
not an orderable part.
When is the open market the only option?
When the factory no longer runs the part and no authorised holder has stock. That is a real
situation and a broker is the correct answer to it. It is the wrong answer to a part that is
still in production, because the same part is available with a factory paper trail.
Before going to the open market, exhaust the cheaper options. Ask whether the manufacturer
has a current series that meets the same specification. Ask whether an authorised
distributor holds residual stock. Ask whether the design can accept a different case size,
thickness or termination, because that is usually where a substitution is actually blocked.
If you do buy on the open market, decide in advance what incoming inspection you will run
and who signs it off. Never let an urgent line decide that question for you.
How do I check that a distributor is authorised?
Ask the manufacturer. Every manufacturer maintains a list of appointed distributors, and a
one-line email to the manufacturer’s regional office settles it. Do not accept a logo on a
website as evidence, in either direction.
Two supporting checks are worth running. Ask which product lines the appointment covers,
because an appointment is usually per brand and sometimes per region rather than blanket.
And ask the distributor to state, in writing on the quotation, that the goods are sourced
through authorised channels in original sealed manufacturer packaging.
Venatech Limited was established in Hong Kong in 2011 and holds authorised appointments
across seven brand lines, with Walsin Technology as the core strategic partner covering
MLCC, chip resistors, inductors, varistors and RF/LTCC. Group operations run from Hong Kong,
Shenzhen and Singapore, with manufacturing in Shenzhen and Jiangmen, Guangdong. A Chengdu
location is in preparation.
FAQ
What is the difference between an authorised distributor and a broker?
An authorised distributor holds a written appointment from the manufacturer and buys stock direct from the factory, so it can supply original sealed packaging with full lot and date code traceability. A broker holds no appointment and buys on the open market, so traceability depends entirely on what previous holders preserved.
Is a franchised distributor the same as an authorised distributor?
Yes. “Franchised” and “authorised” describe the same relationship: a written appointment from the manufacturer to buy and resell its product. “Independent”, “open market” and “broker” describe the opposite arrangement. The label on the website matters less than whether the manufacturer confirms the appointment when asked directly.
Are brokered components counterfeit?
Usually not. Most open-market inventory is genuine stock stranded by a cancelled programme or an over-forecast. The risk is the gap in chain of custody, not the parts themselves. That gap is where re-reeled, re-labelled or mixed-lot material can enter, and it is invisible on a quotation.
What is a Certificate of Conformity for electronic components?
A written statement that the delivered goods conform to the manufacturer’s published specification, tied to the lot supplied. Venatech makes a Certificate of Conformity available on request for Walsin product. Combined with the factory lot and date code on the original reel label, it is what makes a later containment action bounded.
Why is a Walsin part number from the catalogue not orderable as written?
Walsin’s MLCC parametric export omits the CT packaging suffix. In Venatech’s 23 September 2026 stock snapshot, 865 of 1,125 lines have an order code that differs from the catalogue code for exactly that reason — 0201B101K160CT on the purchase order against 0201B101K160 in the search tool.
Does the manufacturer’s search tool list every part it makes?
No. Venatech’s September 2026 snapshot holds 176 part numbers with no matching row in Walsin’s downloadable parametric export, and 73 of the MLCC ones carry the Y5V dielectric code, against two Y5V parts in the whole 24,026-row export. A search tool is a marketing surface, not an inventory system.
How do I verify that a distributor is authorised for a brand?
Email the manufacturer’s regional office and ask. Then ask the distributor which brands and regions its appointment covers, since appointments are granted per brand and often per region. Finally, ask for the authorised-channel and original-packaging statement to appear in writing on the quotation itself.
Next step
The fastest way to test a supply chain is on a real BOM line. Send the part numbers and
Venatech Limited, an authorised Walsin distributor in Hong Kong, will return the orderable
Walsin code with its packaging suffix, whether it appears in Walsin’s parametric export or
only on the datasheet, and what traceability paperwork comes with it.
Send your BOM to Venatech · Browse the
Walsin MLCC range · Read
The CT suffix: orderable Walsin part numbers
and
Why Walsin part numbers do not paste into your BOM.
Cross it yourself. The cross-reference tool takes a single part number or a whole BOM column and returns the Walsin candidates with every field that differs stated plainly — qualification stays with you. Ready stock shows what is held in Hong Kong today, with an RFQ against any line.