DA101C Part Review
Thought for 44 sec
I’ll review the part metadata, find and set the official datasheet URL if missing, then compare symbol/footprint/pin details against the datasheet and report any mismatches.
Worked for 2 mins 28 sec
I found a datasheet already attached, and also located the official Murata DA100-series PDF. I’m now checking the symbol pins and through-hole footprint against the Murata pinout/mechanical drawing.
Worked for 3 mins 20 sec
Created a project doc
Completed the DA101C part review and documented the detailed findings in Part Review - DA101C.
Key result: the footprint and fitted pins match the Murata DA101C datasheet, including pins 1/3/4/6 and omitted pins 2/5. Main flags: the symbol uses generic terminals without transformer winding/dot notation, pin descriptions are missing, and the project description’s
1-1.59mH range may not match the Murata datasheet range of 1.00-2.06mH.Fix metadata and review
Fix symbol issues
Add pin descriptions
Update datasheet URL
Check footprint manufacturability
Refine this doc
Ask about this doc
Part Review - DA101C
Source data reviewed
- Flux project:
silicon-yard/da101c - Project name / MPN:
DA101C - Manufacturer property: Murata
- Existing Datasheet URL property:
https://storage.googleapis.com/graviton-electric-symbols/document_assets/user-uploaded/54798cebc3dee4977aa0295e72400ad5e9dc10a9ebea47d50346775f2221e971.pdf - Official datasheet found by web search:
https://www.murata.com/products/productdata/8816046112798/kmp-da100.pdf
The project already had a Datasheet URL, so no datasheet property update was required by the requested rule. The official Murata URL above should be preferred if the library part is later normalized to an official source URL.
Key datasheet specs
- Manufacturer / series: Murata Power Solutions / Murata, DA100 Series
- Part number: DA101C
- Function: transformer for digital audio data transmission, AES/EBU/S/PDIF-style isolation applications
- Turns ratio: 1:1
- Primary inductance: 1.00 mH to 2.06 mH
- Isolation: 2000 Vrms, 1 s flash test
- Leakage inductance: 0.26 uH max at 100 kHz, 10 mV
- Volt-time product: 15 Vus min
- Return loss: 46.8 dB min, 100 kHz to 3 MHz
- Common-mode rejection: 52.1 dB typical at 100 kHz, 110 ohm
- Operating temperature: 0 C to 70 C
- Package: 6-pin DIL through-hole package with pins 2 and 5 omitted/not fitted
- Fitted electrical pins: 1, 3, 4, 6
- Winding connections: primary 1-3, secondary 6-4
- Polarity dots: pins 1 and 6
Symbol / pin cross-check
Flux schematic contains four terminal elements with pin numbers 1, 3, 4, and 6. This matches the four fitted electrical pins in the datasheet. Pins 2 and 5 are absent, which is also correct for DA101C.
Mismatches / improvement flags:
- Pin descriptions are missing: all terminal pin types are
Unspecified, and noPin Descriptionis set. Recommended descriptions:- Pin 1: Primary winding dotted terminal
- Pin 3: Primary winding undotted terminal
- Pin 6: Secondary winding dotted terminal
- Pin 4: Secondary winding undotted terminal
- The symbol is implemented as four plain terminals rather than a transformer-style symbol with winding arcs and visible polarity dots. Electrically the pin numbers are present, but the symbol does not communicate primary/secondary or dot polarity clearly.
- Project description says
1-1.59mH; the datasheet range extracted for DA101C is 1.00 mH to 2.06 mH primary inductance. Consider updating the description if 1.59 mH came from a distributor nominal value rather than the Murata datasheet range.
Footprint cross-check
Footprint asset data includes four through-hole pads:
- Pad 1 at (-5.08 mm, -2.54 mm)
- Pad 6 at (+5.08 mm, -2.54 mm)
- Pad 3 at (-5.08 mm, +2.54 mm)
- Pad 4 at (+5.08 mm, +2.54 mm)
This corresponds to a 10.16 mm row spacing and 5.08 mm spacing between fitted pins on each side, matching the DA101C 6-pin DIL grid with omitted pins 2 and 5. The footprint has a pin-1 silk marker near the pad-1 corner.
Pad/hole details:
- Footprint pad size: 2.0 mm circular
- Footprint drill: 1.35 mm
- Datasheet recommended hole: 1.20 mm +0.15 / -0.00 mm
The 1.35 mm drill equals the maximum recommended finished-hole diameter from the datasheet tolerance, so it is acceptable but at the loose/high end. If fabrication uses drill size rather than finished hole, confirm plating allowance so the finished hole remains within the Murata recommendation.
Body/silk outline:
- Footprint fab outline is approximately 9.52 mm x 9.00 mm, matching the datasheet maximum body dimensions after orientation.
Overall result
The pin count, fitted pin numbers, through-hole package style, pad pitch, row spacing, and basic footprint geometry match the Murata DA101C datasheet. The main issues are documentation/symbol-quality issues: missing pin descriptions, generic terminal-style symbol without transformer winding/dot notation, and a project description inductance range that may not match the datasheet range.
Source data reviewed
Key datasheet specs
Symbol / pin cross-check
Footprint cross-check
Overall result
