VenaMatch is the cross-reference tool from Venatech Limited, an authorised Walsin
Technology (Walsin) distributor in Hong Kong. Enter one part number: it identifies the
manufacturer itself, decodes size, dielectric, capacitance, tolerance and voltage, returns
the closest Walsin part with a field-by-field match list, then asks your quantity and opens
an RFQ line. No vendor dropdown, no second search.
It is a Walsin cross reference tool built for the moment after the answer. Walsin’s own
cross-reference search does the engineering half and names a compatible Walsin part.
VenaMatch does the commercial half: it carries that same answer into a quantity, an RFQ
line and a person who can price it. A manufacturer identifies; a distributor supplies.
Live at venatech.com.hk/cross-reference/.
What does VenaMatch do?
It turns one part number into a Walsin candidate and a request you can send. The flow is
five short steps: one part or a list, MLCC or chip resistor, the part number, the match
result, the quantity. Then two buttons — Add to RFQ and Cross another part.
Nothing about that sequence is decorative. Each step exists because a cross that stops at
the part number leaves the buyer with more work than it saved. You still have to find the
Walsin series, confirm the orderable code, and open a conversation with somebody who can
sell you the reel. VenaMatch closes that gap inside the same page.
The first question it asks is whether you have one part or a list. The helper text under
the list option is deliberately broad: a list can be a BOM extract, an EOL notice, or
anything pasted from a spreadsheet. Buyers rarely arrive with a tidy file. They arrive with
a fragment of an email.
Do I need to know which manufacturer the part came from?
No. VenaMatch reads the manufacturer out of the part number itself and echoes it back for
you to confirm. There is no vendor list to scroll and no radio button to pick. If you have
inherited a BOM line and do not know whose part it is, you can still start.
This matters most on the lines nobody wants to own. A contract manufacturer handed a
customer’s BOM often has a column of part numbers and a column of descriptions that
disagree with each other. Being able to paste the number and let the tool name the vendor
removes the one step most likely to be guessed wrong.
The coverage line on the page reads: Murata, Samsung, TDK and 10 more, across ceramic
capacitors and chip resistors, matched on size, value, tolerance, voltage and product
family. Those five fields are the match criteria, and they are the five fields the result
reports back.
What does the match list actually show?
Every field, ticked or not. VenaMatch prints the case size, dielectric, capacitance,
tolerance and voltage of the Walsin candidate against the decoded incumbent, with a tick
beside each field that matches. It names the Walsin series and the grade — for example
General Purpose, Commercial.
Here is a real result. For an incumbent described only by specification — a 0603 X7R 100 nF
±10% 50 V line — VenaMatch returned Walsin 0603B104K500. Checked against our own extract
of 24,026 Walsin MLCC part numbers, that part is real and the five fields hold.
| Field | Incumbent line, as described | Walsin 0603B104K500 |
Match / mismatch |
|---|---|---|---|
| Case size | 0603 | 0603 (1608) | Match |
| Dielectric | X7R | X7R | Match |
| Capacitance | 100 nF | 100 nF | Match |
| Capacitance tolerance | ±10% | ±10% | Match |
| Rated voltage | 50 V | 50 Vdc | Match |
| Series and grade | — | General Purpose, commercial | Not comparable — no grade in the headline spec |
| Dimensional tolerance | not stated in the headline spec | 1.60+0.15/−0.10 × 0.80+0.15/−0.10 × 0.80+0.15/−0.10 mm | Mismatch risk — must be read off both datasheets |
| AEC-Q200 | not stated in the headline spec | Not an AEC-Q200 part | Mismatch risk — General Purpose is a commercial grade |
Dimensions from the Walsin General Purpose MLCC datasheet.
Look at the bottom two rows. They are the reason the match list is printed field by field
rather than summarised in one word. Five fields match. Two more are not in the headline
specification at all, and both can decide the design. Walsin’s own cross-reference
instructions say it plainly, at step four: double check the thickness and tolerance of the
suggested part to ensure accuracy. That is a manufacturer being straight with its users,
and it is the single best argument for why a cross needs a human after it.
Why does VenaMatch ask how many I need?
Because quantity is what makes a quote possible. The helper text says so directly: a rough
annual figure is fine — it is what gets you the right price break. You are not committing
to an order by typing a number. You are letting the quote come back at the right tier
instead of a placeholder one.
This is the step a manufacturer’s tool has no reason to include. Walsin does not sell
direct, so a quantity field on their page would lead nowhere. Venatech is the authorised
distributor, so on our page the quantity is the whole point of asking. That is a division
of labour, not a gap.
An annual figure also changes the answer in ways a piece count does not. A line running a
few thousand a year and a line running a few hundred thousand a year may cross to the same
Walsin part and need entirely different packaging, buffer arrangements and lead-time
planning. Say the real number and the reply is useful.
Is the crossed part approved for my board?
No, and VenaMatch says so on the same screen as the result. Its standing disclaimer reads:
“Please verify before you commit. This is a specification match against Walsin’s published
catalogue, offered as a candidate for your evaluation. It is not an approved substitution
and we cannot assess how a part behaves in your circuit. Check the datasheet, and qualify
the part in your application, before production use.”
We publish that wording on purpose, and we do not soften it. A specification match is a
candidate for evaluation. Approval is a decision made in your circuit, on your board, in
your qualification plan. No tool built by anybody — manufacturer or distributor — can make
it for you.
Walsin’s own preamble to its cross-reference search takes the same line: you must evaluate
the suggested replacement and conduct necessary tests before proceeding with mass
production. Two tools, two companies, one message. That agreement is worth more to a buyer
than any claim of certainty either of us could make.
Where does the tool hand over to a person?
At the bottom of every result. VenaMatch shows a thumbs up and thumbs down on the question
“Was this the part you needed?”, and a Talk to a person button. The footer note names
exactly what a person is for: price, stock, lead time, or anything about how a part behaves
in your circuit.
The feedback control is not ornamental either. A thumbs down on a result is the fastest
signal we can get that a match rule needs looking at, and it costs the reader one click
instead of an email.
Is the crossed part already sitting in Hong Kong?
VenaMatch does not display stock, and our stock list is a separate document. But the answer
for this particular cross happens to be yes. Our snapshot dated 23 September 2026 holds
1,125 part numbers, and three of the candidates for a 0603 X7R 100 nF 50 V line are
on it.
| Catalogue code | Order code in the snapshot | Series | Capacitance tolerance | Match / mismatch vs a ±10% incumbent |
|---|---|---|---|---|
0603B104K500 |
0603B104K500CT |
General Purpose | ±10% | Match on all five fields |
0603B104M500 |
0603B104M500CT |
General Purpose | ±20% | Mismatch — tolerance is wider |
SH18B104K500 |
SH18B104K500CT |
Soft Termination SH, Ag-poly | ±10% | Match on five fields, mismatch on dimensional tolerance (±0.30 mm) |
Part-number counts, not piece counts, and a snapshot only. Note the order-code column: 865
of the 1,125 lines in that snapshot carry a CT packaging suffix that the catalogue code
does not. If you paste a catalogue code into a purchase order it is not orderable as it
stands — see The CT suffix: orderable Walsin part numbers.
Which product lines and languages does VenaMatch cover?
Two product lines and three languages. The page covers ceramic capacitors and chip
resistors, and switches between EN, 繁 and 简. That is the same two-line scope Walsin’s own
cross-reference search covers — MLCC and CHIP-R — which is not a coincidence; the matching
is done against Walsin’s published catalogue.
FAQ
What is VenaMatch?
VenaMatch is the cross-reference tool from Venatech Limited, an authorised Walsin Technology distributor in Hong Kong. It crosses a ceramic capacitor or chip resistor part number to a Walsin candidate, prints a field-by-field match list, asks for quantity and opens an RFQ line. It is reached at venatech.com.hk/cross-reference/.
Do I have to select the manufacturer before crossing a part?
No. VenaMatch identifies the manufacturer from the part number itself and echoes it back for you to confirm. The coverage line on the page reads Murata, Samsung, TDK and 10 more. If you have inherited a BOM line and do not know whose part it is, you can still start with the number alone.
Is a VenaMatch result an approved substitution?
No. VenaMatch states that a result is a specification match against Walsin’s published catalogue, offered as a candidate for your evaluation, and that it is not an approved substitution. Check both datasheets and qualify the part in your own application before production use. Approval is a decision made in your circuit.
Why does the tool ask for a quantity?
Because a quote needs one. The helper text says a rough annual figure is fine, and that it is what gets you the right price break. Typing a figure is not an order. It lets the reply come back at the right tier instead of a placeholder, and it shapes packaging and lead-time planning too.
What does VenaMatch not tell me?
Price, stock, lead time, and anything about how a part behaves in your circuit. The page says so in its own footer and routes those four questions to a person through the Talk to a person button. Dimensional tolerance and qualification grade also need reading off both datasheets.
Which Walsin part crosses to a 0603 X7R 100 nF ±10% 50 V line?
0603B104K500 in Walsin’s General Purpose series matches on case size, dielectric, capacitance, tolerance and voltage. It is a commercial-grade part measuring 1.60+0.15/−0.10 × 0.80+0.15/−0.10 × 0.80+0.15/−0.10 mm. Twelve other Walsin parts share that headline specification, so confirm grade and termination before committing.
Can VenaMatch handle a whole BOM rather than one line?
Yes. The first question offers I have a list, and the helper text says a list can be a BOM extract, an EOL notice, or anything pasted from a spreadsheet. Pasted lists do fail to match for two known formatting reasons, both of which are avoidable and both documented on this site.
Does Walsin have its own cross-reference tool?
Yes, at cross.passivecomponent.com, covering MLCC and CHIP-R in four languages. It is a four-step form ending in a suggested Walsin part, which is the whole of what a manufacturer that does not sell direct can responsibly do. Walsin’s tool tells you which part. Ours tells you which part, then lets you ask for it.
Next step
Cross one line and see how far it gets in a single pass. Then send the rest.
Cross a part with VenaMatch · Talk to a person at Venatech ·
Browse the Walsin MLCC range · Read
How to cross-reference an MLCC properly and
Why Walsin part numbers do not paste into your BOM.