adrian95 / 4116R-1-221

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Part Information Review and Update

flux

1:57

Considering datasheet queries.

Reviewing the bill of materials.

Analyzing the schematic.

Analyzing the PCB layout.

Looking for "Official datasheet details for Bourns 4116R-1-221LF: exact MPN, manufacturer, package, pin count, description, resistance value, tolerance, power rating, resistor network type, package dimensions, and pin functions/pin numbering for the 8-pin DIP isolated resistor array." in 4100R.pdf

Analyzing the PCB layout.

Looking for "For Bourns 4116R-1-221LF, provide the key electrical specs and ratings: resistance tolerance options for this exact suffix, operating temperature range, maximum working voltage, package power derating, and any marking or package style notes relevant to a part-library summary." in 4100R.pdf

Cross-checking footprint.

I reviewed the part against the Bourns datasheet and the current part project.
Overall result
  • Datasheet URL already exists, so no web search or property update was needed.
  • The MPN and manufacturer are correct.
  • The biggest metadata issue is the package property: the project says 8-DIP, but the datasheet identifies this part as a 16-pin molded DIP package. The 4116R is an 8-resistor isolated network in a 16-pin DIP, not an 8-pin DIP. The datasheet also confirms the pin pairing is 1-16, 2-15, 3-14, 4-13, 5-12, 6-11, 7-10, 8-9
Part info cross-check

Reviewed properties

FieldCurrent projectDatasheet checkStatus
MPN4116R-1-221LFMatches official ordering codeOK
ManufacturerBournsDatasheet says Bourns, Inc.OK
Datasheet URLhttp://www.bourns.com/pdfs/4100R.pdfOfficial Bourns datasheet URL already presentOK
Package or Case Code8-DIPDatasheet says 16-pin molded DIP, low-profile thick-film networkMismatch
Part TypeResistorsFunctionally this is a resistor network / isolated resistor arrayAcceptable, but could be more specific
Designator PrefixRNAppropriate for resistor networkOK
Description"Bourns Isolated Resistor Array 220 +/-2% 8 Resistors, 2.25W Total, DIP package 4100R Through Hole"Mostly correct, but package wording is too vague and should clearly say 16-pin DIPMinor issue

Key datasheet specs

SpecDatasheet value
Part family4100R Series thick-film molded DIP
Exact device4116R-1-221LF
Network type8 isolated resistors
Resistance220 Ω
Tolerance±2 %
Operating temperature-55 °C to +125 °C
Max working voltage100 V
Package power rating2.25 W at 70 °C
Per-resistor power0.25 W at 70 °C
Package style16-pin low-profile molded DIP
Pin pitch2.54 mm
Row spacing6.71 mm nominal
These values come directly from the Bourns datasheet for the 4100R family and the 4116R ordering code details
Schematic symbol check What matches
  • The symbol contains 16 terminals, which matches the datasheet’s 16 pins.
  • The terminal numbering present in the project covers 1 through 16, which is correct for the 4116R package.
Issues found
  • All terminal Pin Type fields are currently Unspecified.
    • For this part, each pin should be treated as Passive.
  • There are no pin descriptions populated.
    • Since this is an isolated resistor array, each pin description should identify which resistor pair it belongs to, for example:
      • Pin 1: resistor to pin 16
      • Pin 16: resistor to pin 1
      • Pin 2: resistor to pin 15
      • etc.
  • The symbol is only minimally defined as numbered terminals. That is electrically usable, but it is not yet well-documented as a library-quality part.
Footprint check What matches
  • The layout contains 16 pads, matching the datasheet’s 16-pin DIP package.
  • Pad numbering also appears to match the required 1-16 set.
What I could not fully verify from the available layout data
  • Exact row spacing
  • Exact pad/drill dimensions
  • Exact body outline dimensions
  • Pin-1 marker/orientation details
So the footprint is consistent at the pad-count/numbering level, but I cannot fully confirm the mechanical land pattern dimensions from the current inspection output alone.

Mismatches and gaps to fix

AreaIssueSeverity
Project propertyPackage or Case Code = 8-DIP should be 16-pin DIPHigh
Symbol metadataAll pins are Unspecified instead of PassiveMedium
Symbol documentationPin descriptions are missingMedium
DescriptionShould explicitly say 16-pin DIP isolated resistor networkLow
Footprint verificationMechanical dimensions not fully confirmed from current dataMedium
Recommended corrected summary
A better part summary would be:
  • 8-resistor isolated network, 220 Ω ±2 %, 16-pin through-hole molded DIP, 2.25 W total
That phrasing follows the datasheet more closely and avoids the current 8-DIP mistake
Bottom line
  • Correct: MPN, manufacturer, resistor value, tolerance, resistor-count concept, total power concept, 16-pin symbol/pad count.
  • Incorrect: Package property is wrong (8-DIP vs actual 16-pin DIP).
  • Incomplete: pin types and pin descriptions.
  • Partially verified: footprint numbering is right, but full mechanical footprint dimensions still need a deeper geometry check.
If you want, I can next:
  • fix the Package or Case Code
  • set all pin types to Passive
  • add concise pin descriptions for all 16 pins
  • tighten up the project description to match the datasheet exactly
Fix metadata issues
Verify footprint dimensions
Review all resistor networks
34 days
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4116R-1-221

4116R-1-221 thumbnail
220 Ohm ±2% 250mW Power Per Element Isolated 8 Resistor Network/Array ±100ppm/°C 16-DIP (0.300", 7.62mm) #CommonPartsLibrary #Resistor-array #4100R

Properties

4116R-1-221

Bourns

Resistors

bourns.com/pdfs/4100R.pdf

RN

220

Ω

Through Hole

8-DIP

creativecommons.org/licenses/by/4.0/

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