Part Data Review and Update

Thought for 3 mins 37 sec

I reviewed the current part data for HSMG-C191.

What’s currently in the part

Table

Field	Current value	Status
Manufacturer Part Number	HSMG-C191	Looks correct
Designator Prefix	D	Looks correct for LED/diode-class part
Manufacturer Name	empty	Missing
Part Type	empty	Missing
Datasheet URL	empty	Missing
Terminal count	2	Present
Footprint	0603.kicad_mod	Present
3D model	HSMG-C191.step	Present

The project metadata shows only Manufacturer Part Number = HSMG-C191 and Designator Prefix = D; no Datasheet URL property is populated right now. The library record for this same part also shows empty Manufacturer Name, Part Type, and Datasheet URL fields. The current symbol is just two generic terminal elements with Pin Number 1 and 2, both typed as Passive, and no pin descriptions. The footprint has 2 pads and uses a 0603 asset, plus a STEP model is attached.

Official datasheet source I found

The best official source I found is Broadcom’s product page for HSMG-C191:

https://www.broadcom.com/products/leds-and-displays/chip-leds/0603-1.6-x-0.88mm-top-mount/hsmg-c191

The official Broadcom datasheet appears to be:

https://docs.broadcom.com/doc/AV02-0551EN

That Broadcom docs URL is the canonical datasheet URL I’d use for the Datasheet URL property.

Key specs I could confirm

From the official product search results and distributor summaries tied to this exact MPN:

Low Profile ChipLED
Green LED
0603 / 1.6 mm x 0.8 mm class package
2 pins
Typical specs commonly shown for this exact MPN in distributor summaries: 572 nm dominant wavelength, 20 mA test/LED current, 170° viewing angle, 2.2 V typical forward voltage, 52 mW power. These values appear consistently in search results, but I could not extract the PDF text directly from the Broadcom PDF scrape, so I’m treating them as externally corroborated rather than PDF-quoted.

Cross-check summary

Table

Area	Result	Notes
MPN	Pass	`HSMG-C191` matches project/library record
Package / footprint class	Likely pass	Current footprint is `0603.kicad_mod`, and the official product page/search results identify the part as a 0603-class low-profile ChipLED
Pin count	Pass	Project has 2 terminals and footprint has 2 pads, which is consistent with the part family
Symbol polarity semantics	Needs work	Current symbol uses generic terminals only; no explicit anode/cathode naming verified
Pin types	Mismatch / incomplete	Both pins are `Passive`; for an LED part, generic passive typing is not very descriptive
Pin descriptions	Missing	No per-pin descriptions set
Manufacturer Name	Missing	Should be populated
Part Type	Missing	Should be populated, likely LED / ChipLED
Datasheet URL	Missing	Should be populated with the Broadcom docs URL

Mismatches / issues to flag

Manufacturer Name is missing.
Part Type is missing.
Datasheet URL is missing.
Pin metadata is too generic:
- both terminals are Passive
- no pin descriptions
- no explicit polarity naming visible
The symbol/footprint counts look consistent for a 2-pin 0603 LED, but I could not fully verify pad geometry, polarity mark convention, or exact anode/cathode mapping from the official PDF because the PDF scrape came back as unreadable binary content rather than extractable text. The part-project sync guidance is explicit that pin numbers and polarity details must come from the datasheet, not guesswork.

Recommended property values

Based on the review, these are the highest-confidence updates:

Table

Property	Recommended value
Manufacturer Name	Broadcom
Part Type	LED
Datasheet URL	https://docs.broadcom.com/doc/AV02-0551EN
Package or Case Code	0603 or the exact Broadcom package string once confirmed from the datasheet text

Bottom line

The part is structurally close: 2-symbol terminals, 2 footprint pads, 0603 footprint, and correct D prefix all align with a small LED package.
The biggest gaps are metadata completeness and pin semantic detail.
I found the official datasheet URL to use, but I could not fully validate anode/cathode labeling, pin descriptions, or exact footprint geometry details from the official PDF text extraction.

If you want, I can do a second pass focused just on:

exact anode/cathode mapping
suggested pin descriptions
a clean set of project property values to enter verbatim.

Fix missing metadata

Check footprint polarity

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