Method
Definitions
DMSMS vs Obsolescence
What diminishing manufacturing sources and material shortages means, what triggers it, and how it differs from obsolescence.
Category
DATA PLATFORMS · TOOLS
Tools & Data
Neutral reads on the obsolescence data platforms, what each one actually shows, what it costs, and where it earns its keep. This publication resells no data and takes no vendor money; every read is from public sources only.
Data Tools
Analysis
SiliconExpert vs Z2Data vs Octopart
Four platforms, one question: who does what? A neutral read on the obsolescence data tools, lifecycle status, stock, risk and compliance, from public sources only.
Octopart · SiliconExpert · Z2Data · Accuris
The four in play
| Octopart | Status, stock, price | Free |
| SiliconExpert | Risk & crosses | Paid |
| Z2Data | Supply-chain | Paid |
| Accuris | Parametric | Paid |
The comparison matrix
What each platform gives you, side by side. Coverage reflects publicly documented capability, not an audit, and not an endorsement.
| Capability | Octopart | SiliconExpert | Z2Data | Accuris |
|---|---|---|---|---|
| Lifecycle status | ✓ | ✓ | ✓ | ✓ |
| Stock & pricing | ✓ | ✓ | · | · |
| Replacement / crosses | · | ✓ | ✓ | · |
| Compliance (RoHS/REACH) | · | ✓ | ✓ | · |
| Supply-chain risk | · | ✓ | ✓ | · |
| Parametric / datasheets | ✓ | ✓ | · | ✓ |
| Access | Free | Paid | Paid | Paid |
Capability is publicly documented and vendor-reported, not independently audited. No vendor has paid for placement in this table.
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Tool reads, when they land