LastBuy
modelGemma-4-31B-ITserved onAMD Instinct · developer.amd.com.cnorchestrated byEvolus · workspace lycheeimpact enginedeterministic, no model

Component obsolescence management

Know what a discontinued part costs you before the window shuts.

Suppliers retire thousands of components every year and give you weeks to place a final order. LastBuy reads the notice, traces the part through everything you build, and tells you what to buy and what it protects.

One component, traced through everything it touches

live, from the graph
ADUM1201ARZdiscontinuedASM-CTRL-BASM-GATE-DASM-PWR-AHMI-71 per unitMD-30007 per unitMD-750013 per unitPSU-2406 per unitSRV-1001 per unit

The problem

The letter is one line. What it breaks is the hard part.

A supplier's letter gives you a part number and a date. It does not tell you which of your products use that part, how many you will need, or what you lose if you run out. Someone has to work that out by hand, across spreadsheets — and the order has to be in before the date.

After that date the part is never sold again. You redesign the product, or you stop building it.

One part, traced

ADUM1201ARZ

a digital isolator from Analog Devices

3
assemblies it sits inside
5
finished products that stop without it
€9.06M
a year of revenue behind those products
34 days
to place the last order

Worked out by the engine from the example factory's bill of materials.

What you get

Four things, on every notice that arrives

01

Read any notice

A PDF, a scan, a photo from someone's phone, in German, Japanese or Chinese. It comes back as structured fields in seconds, matched against components you actually build.

17s
per document
02

See the blast radius

One component rarely sits in one product. The engine traces every route it takes through your bill of materials and names each finished product, customer contract and certificate it touches.

7
routes found, on one part
03

Price the decision

How many to buy, what it costs, how long the stock lasts, and what the alternative would cost in requalification. Move the assumptions and the number moves with them.

€1.4M
the cheque, on one part
04

Defend it afterwards

Every figure shows the path it came from, every claim about a standard cites its clause, and nothing is ordered without a named approver at the right authority level.

0
figures generated by a model
end-of-life noticesproduct change notificationslast-time-buy deadlinesmulti-level bills of materialscertification exposuresupplier concentrationstock runwaycustomer contracts

How it is built

One decision explains the whole pipeline.

A supplier notice is a form, not an essay. So the form is read first, and a model is asked only for what the page did not state. That ordering is the difference between an answer and a request that times out.

What the agent keeps

A conversation is thrown away. What it established is not.

A worked example

One notice arrives. Here is everything it touches.

A demo factory: five products, sixteen components, a supplier letter about one of them. Your own workspace starts empty — nothing below is in it until you put something there.

01

A supplier sends a letter

A PDF or a scan, in any language. It is read on AMD GPUs, and the part numbers in it are matched against your bill of materials. If it names nothing you build, it is rejected rather than guessed at.

Notices
PCN-ADI-2026-4471Analog Devices · ADUM1201ARZ · end of life34d to last buy
PCN-TDK-2026-0912TDK-Lambda · TLP2361 · product change168d to last buy
PCN-INF-2026-7733Infineon · IKW40N120H3 · end of life259d to last buy

02

The graph says what breaks

Not a model — a traversal. One isolator sits under five finished products, so the exposure is the revenue of all five. Every figure here is arithmetic you can replay.

Notices → ADUM1201ARZ
Reachesfinished products built from it5 products
Stock on hand14,200 units · 26 week lead time21 wk cover
Last-time buyto cover the contracted service horizon504,798 units
What that order costsat standard costEUR 1,433,626
Revenue exposed if it is missedacross all five productsEUR 9,058,546/yr

03

Every part is scored before any letter arrives

Sole-sourced, long lead time, deep in the bill of materials: the components most likely to hurt are ranked whether or not anyone has written to you about them yet.

Parts
ADUM1201ARZDigital isolator · sole sourced · 26 wkrisk 85
IKW40N120H3IGBT 1200 V 40 A · 1 alternative · 32 wkrisk 79
ACS712ELCTR-20AHall current sensor · 1 alternative · 24 wkrisk 78
B32774D8106K000Film capacitor · 1 alternative · 28 wkrisk 48

04

And what it means for the business

Products carry the risk of their most exposed component. That is the number a procurement lead has to defend, so it is the number on the screen.

Products
PSU-240Industrial PSU 240 WEUR 4,321,296/yr
MD-3000Motor Drive 3 kWEUR 2,273,249/yr
MD-7500Motor Drive 7.5 kWEUR 1,658,569/yr
HMI-7Operator Panel 7 inchEUR 613,947/yr
SRV-100Servo ControllerEUR 191,486/yr

05

Ask it anything, and check the answer

Drop in as many documents as you like and ask across all of them at once. Every claim says where it came from: a filename if it was read from a document, the engine if it was computed.

Ask

You

What does this notice change, and which of my parts does it touch?

Vigil

It is a process change, not a discontinuation: a switch of plating vendor, with no impact on form, fit or function [PCN140002.pdf]. Last-time buy for the unchanged product is 2014-02-01 [PCN140002.pdf]. It names five components in your bill of materials, all under the RF front end [engine].

Start with your own bill of materials

Why you can sign it

It knows what it does not know

Figures are computed, never generated — the model is handed them as facts and forbidden from inventing one. Claims about a standard carry the clause they came from. And asked something its documents do not cover, the analyst says so instead of producing a plausible answer.

Asked whether a substitution re-opens approval

“Substitution re-opens EN 61800-3 under clause 6.3.2 and UL 61800-5-1 under clause 4.4. Clause 6.4.1 requires re-tested radiated and conducted emissions per affected product.”

Asked for a thermal derating curve

“The documents contain no thermal derating curve for this part. You need the manufacturer datasheet, or review by a qualified engineer.”

What it costs to run

A complete assessment costs $0.00000 of inference and about nine Evolus credits.

Cheap enough to run on every notice that arrives rather than triaging which ones look important — which is how the expensive ones get missed. Every stage reports its own cost on screen.

On watch

Every notice is read. None are triaged out.

  • PCN-ADI-2026-4471—
  • PCN-TDK-2026-0912—
  • PCN-INF-2026-7733—
  • PCN-STM-2026-1180—

Four notices, read end to end, for less than a twentieth of a cent.

Obsolescence management is already an industry. Every tool in it is a database you search.This one reads the letter and tells you what breaks.

ADUM1201ARZ · the same part, asked two ways

Search a part number

Facts about the component.

Lifecycle
NRND
Datasheet
rev C, 2019
Alternates
none qualified
Stock
14,200

Drop in the letter

What it costs you to lose it.

Products that stop
5
Revenue behind them
€9,058,546 / yr
Cover you actually have
21 weeks against 26
Days to decide
34