3
core field types
The core fields are stock, price, and lead time; channels may return only a subset, while some also return MOQ or order limits.
Electronic component stock monitoring
Search and monitor electronic component stock by exact MPN.
Search stock by exact MPN across enabled supplier channels. Review each result's channel and observation time, then receive an alert when a saved stock rule is met. Available fields and check timing vary by source.
- See which channels are enabled
- Compare stock by supplier
- Set a stock rule
- Review the channel and time
Example MPNs:
Example MPN
Field guideMonitoring record
TPS7A8300RGWR
- Stock quantity
- Shown only after a valid supplier response.
- Price and lead time
- Stored only when the source returns them.
- Collection state
- Unknown, zero stock, and failure stay separate.
Missing or failed reads stay separate from zeroRead the source state
Product
What is MPN Radar?
MPN Radar is the public website for Chip Monitor, an electronic component stock monitoring service for purchasing and engineering teams. Search by exact manufacturer part number (MPN) across connected suppliers, compare returned inventory, and review price breaks or lead time when a source provides them. Stock alerts follow a saved restock or quantity condition. Each successful observation keeps its channel and time; missing or failed reads stay separate from zero inventory. Monitoring does not place an order unless an ordering workflow is separately enabled.
What the monitor records
7
supplier channels
Supported channels are listed here. Actual availability depends on platform enablement, credentials, region, quota, and upstream availability.
1
focused workspace
Keep parts and stock rules in one workspace.
Start monitoring
Search electronic component stock by exact part number.
When anonymous lookup is enabled, enter an exact MPN to see stored readings from enabled direct channels. A read-only lookup can return an observation up to 24 hours old; it does not make a new supplier request. If anonymous lookup is turned off, sign in to add a watch rule.
Checking whether anonymous lookup is enabled…
Stock quantity
Shown only after a valid supplier response.
Observation time
Each result shows when it was observed.
No reading
Missing data is not zero stock.
How it works
A stock alert starts with an exact part.
Add an MPN, save a stock rule, and let enabled channels check it on their configured schedules.
Add a part
Paste the part number. We check available channels.
Follow supplier changes
Each channel follows its configured schedule, quota, and failure policy.
Receive a signal
A successful stock reading that meets your rule creates an alert with its channel and time.
Change signals
Stock alerts come with their source context.
Each alert identifies the exact part, supplier channel, and observation time. Price and lead time may be stored when returned, but they do not trigger stock alerts.
Find the exact part
Use the exact manufacturer part number (MPN) to avoid confusing nearby variants.
Set a stock rule
Choose a restock or minimum-stock condition for the part.
Separate stock from collection state
A valid zero is an inventory result. Missing or failed reads stay unknown.
Keep source context
Review the supplier channel and observation time before acting.
Supported channels
Compare supplier fields and connection routes.
The table shows which fields each channel may return and how it is connected. Verical offers appear only when Arrow returns them.
| Supplier | Stock | Price | Lead time | Current route |
|---|---|---|---|---|
| DigiKey | When returned | When returned | When returned | Platform-managed connection |
| Mouser | When returned | When returned | When returned | Platform-managed connection |
| Texas Instruments | When returned | When returned | — | Platform-managed connection |
| Microchip | When returned | — | When returned | Platform-managed official MCP |
| element14 | When returned | When returned | When returned | Platform-managed connection |
| Future Electronics | When returned | When returned | When returned | Platform-managed connection |
| Arrow | When returned | When returned | — | Provided with Arrow channel |
Personal monitoring
Keep parts and stock rules in one workspace.
Track each exact MPN on the supplier channels enabled for your account.
- Review channel availability
- Organize parts and stock rules
- Compare returned stock and price fields
- Keep the channel and observation time
My monitoringConfigured channel schedules
- Monitored partsExact MPN list
- Change alertsSaved stock rules
- Account statusChannel status
See current status after sign in
FAQ
Answers to common monitoring questions.
Select a question to read the answer
Can I use it without being technical?
Yes. Add an exact part number and save a stock rule. The platform checks channels enabled and available to your account.
Which channels are supported?
Chip Monitor supports integrations for DigiKey, Mouser, Texas Instruments, Microchip, element14, Future Electronics, and Arrow. Channels available for monitoring depend on platform enablement, credentials, region, and quota; Verical offers arrive with the Arrow channel.
When will I receive an alert?
A successful stock reading that meets your saved restock or quantity rule creates an alert for its configured destination. Missing or failed reads do not become zero-stock alerts.
Will it place orders automatically?
Monitoring and alerts do not place orders. The Business plan can make TI or Mouser ordering eligible after separate administrator setup and supplier authorization; the ordering workflow still requires its own safeguards and confirmation.
How often is data updated?
The plan shows its minimum check interval. Channel schedules, quota, backoff, and stable-stock slowdown can make checks less frequent. Each reading shows its observation time. A paired TI browser also has its own account setting.
Is this an electronic component search engine?
It is an exact-part stock search and monitoring tool. Enter a known manufacturer part number to compare supplier availability and keep watching it; use a parametric search tool when you still need to choose the component itself.
Start free, upgrade when it matters
Start free with one part and supplier.
Start with the Free plan to check how stock rules and source timestamps fit your process. Current plan capacity and minimum intervals are listed on the pricing page; actual check timing still depends on the channel.