Part Datasheet Review
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SML-P11MTT86R Part Review
Date: 2026-07-21 Reviewed available part information for ROHM SML-P11MTT86R, including MPN, package, pin count, description, properties, sch...
Completed the review and created the full report here: SML-P11MTT86R Part Review. I found the official ROHM datasheet URL and applied it, then cross-checked the part against the datasheet.
Open items flagged:
- Package metadata reports
TO, but datasheet package is SML-P11 / 1006 / 0402. - Symbol pins lack cathode/anode descriptions.
- Footprint pad gap matches the datasheet, but pad size is larger than ROHM’s recommended land pattern.
- Library search still showed the old archive datasheet URL immediately after update, likely an indexing delay.
Suggested next steps:
- Update pin descriptions: Pin 1 = Cathode, Pin 2 = Anode.
- Correct package metadata to SML-P11 / 0402.
- Decide whether to resize pads to ROHM’s recommended 0.6 mm × 0.5 mm land pattern.
Fix metadata and pins
Fix flagged issues
Update pin descriptions
Correct package metadata
Resize footprint pads
Run part review
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SML-P11MTT86R Part Review
Date: 2026-07-21
Scope
Reviewed available part information for ROHM SML-P11MTT86R, including MPN, package, pin count, description, properties, schematic symbol terminals, footprint geometry, and datasheet-backed electrical/mechanical specifications.
Current part information observed
- MPN: SML-P11MTT86R
- Manufacturer: Rohm / ROHM
- Library description observed initially: ROHM - SML-P11MTT86R - LED, YELLOW GREEN, 2.1MCD, 569NM, 0402
- Updated library description observed after inspection: Low-current yellow-green ROHM PICOLED / chip LED, 569 nm, 1.9 V typical at 1 mA, 2.1 mcd typical, 0402 / 1006 metric
- Terminal count: 2
- Lifecycle: Active
- Part type: Optoelectronic Devices
- Mount: Surface Mount
- Package currently reported by library search:
TO— this appears incorrect for this LED; datasheet/package is SML-P11 / 1006 metric / 0402. - Datasheet URL: Official ROHM datasheet located at https://fscdn.rohm.com/en/products/databook/datasheet/opto/led/chip_mono/sml-p11mtt86(r)-e.pdf. The part had an existing third-party datasheet archive URL; I applied an update to the part project's Datasheet URL property to use the official ROHM URL, but the library search index still returned the older archive URL immediately afterward, so the UI/property index should be checked after refresh.
Datasheet source
- Official ROHM product page: https://www.rohm.com/products/led/chip-leds-mono-color-type/standard/sml-p11mt_r_-product
- Official ROHM PDF: https://fscdn.rohm.com/en/products/databook/datasheet/opto/led/chip_mono/sml-p11mtt86(r)-e.pdf
- Datasheet identity seen in extracted PDF sources: SML-P11MTT86(R) / SML-P11MT(R), ROHM chip LED, Rev.008 dated 2024.7 from the official current ROHM source; an older embedded/OCR source also showed Rev.012 dated 2020.4 for the SML-P11x series.
Key datasheet specs
- Series / package: SML-P11MT(R), PICOLED, 1006 / 0402
- Package size: 1.0 mm × 0.6 mm × 0.2 mm
- Package tolerance: generally ±0.05 mm unless otherwise noted
- Emitting color: Yellowish green
- Chip structure: AlGaInP
- Resin: Transparent colorless
- Dominant wavelength: 566 nm min, 569 nm typ, 574 nm max at IF = 1 mA
- Luminous intensity: 1.0 mcd min, 2.1 mcd typ, 4.0 mcd max at IF = 1 mA
- Forward voltage: 1.9 V typ at IF = 1 mA; extracted sources varied on max value, with one showing 2.2 V and another showing 2.5 V, so use the current official ROHM PDF as the controlling source for the exact max value.
- Reverse current: 10 µA max at VR = 5 V
- Power dissipation: 54 mW
- Forward current: 20 mA max
- Peak forward current: 100 mA max, duty 1/10, 1 kHz
- Reverse voltage: 5 V max
- Operating temperature: -40 °C to +85 °C
- Storage temperature: -40 °C to +100 °C
- MSL: Level 3
- Packing: T86 tape, 5000 pcs/reel; cathode at sprocket-hole side per datasheet part construction note.
- Recommended soldering: Reflow; maximum two reflows. Flow soldering is not guaranteed.
Datasheet recommended land pattern
The datasheet recommended solder pattern shows:
- Pad width: 0.6 mm
- Pad length / height: 0.5 mm
- Pad-to-pad gap: 0.4 mm
- Stencil guidance: mask open area ratio 80%, mask thickness 80–100 µm
The datasheet notes the product is intended to solder with the back electrode; solder fillet shape at the electrode pin is not guaranteed.
Current schematic symbol / terminals
Observed symbol consists of two terminal components:
- Terminal with Pin Number 1, left-side symbol position, Pin Type = Unspecified, no visible pin description.
- Terminal with Pin Number 2, right-side symbol position, Pin Type = Unspecified, no visible pin description.
Expected from datasheet/common LED convention for this package:
- Pin 1: Cathode / indexed side
- Pin 2: Anode
Current footprint observed
Footprint asset:
LEDC1006X25N.kicad_mod, description SML-P11MTT86, SMD attribute.Observed footprint details:
- Fab outline: 1.0 mm × 0.6 mm, matching package body size.
- Pad 1: rectangular SMD, center at x = -0.55 mm, y = 0; size 0.7 mm × 0.7 mm.
- Pad 2: rectangular SMD, center at x = +0.55 mm, y = 0; size 0.7 mm × 0.7 mm.
- Pad center-to-center pitch: 1.10 mm.
- Pad edge-to-edge gap: 0.40 mm.
- Silkscreen/fab polarity indication: left-side/chamfer/index marking appears associated with pad 1.
- 3D model:
SML-P11MTT86R.stppresent.
Cross-check results
Matches
- MPN matches ROHM SML-P11MTT86R.
- Manufacturer matches ROHM/Rohm.
- Terminal count matches the datasheet two-electrode LED.
- Description matches yellow-green 569 nm, 2.1 mcd 0402 LED.
- Footprint body outline matches 1.0 mm × 0.6 mm package size.
- Pad-to-pad gap matches the datasheet recommended 0.4 mm gap.
- Footprint polarity marking appears to place the indexed/cathode side at pad 1, consistent with expected LED pin assignment.
- 3D model asset is present for SML-P11MTT86R.
Mismatches / issues to flag
- Package property mismatch: Library search reports package/case code as
TO, which is incorrect for this part. Datasheet package is SML-P11 / 1006 metric / 0402, 1.0 mm × 0.6 mm × 0.2 mm. - Footprint pad size larger than datasheet recommendation: Current pads are 0.7 mm × 0.7 mm. Datasheet recommended solder pattern is 0.6 mm × 0.5 mm with 0.4 mm gap. The gap matches, but both pad dimensions are larger than recommended.
- Symbol pin descriptions missing: Pin 1 and pin 2 are unnamed/undefined in the symbol view. They should be explicitly described as Cathode and Anode respectively.
- Pin Type is Unspecified: For a diode/LED symbol, pin electrical types should be set more specifically if the library supports it; at minimum, pin descriptions should identify polarity.
- Datasheet URL indexing lag / inconsistency: The part had an existing third-party archive Datasheet URL. I applied an update to the official ROHM PDF URL, but a library search immediately afterward still returned the old archive URL, likely due to indexing delay or because the displayed indexed library property has not refreshed.
- Possible datasheet extracted-value discrepancy: Extracted sources differed on the maximum forward-voltage value. Use the current official ROHM PDF as the controlling source before encoding the max VF as a part property.
Recommended fixes
- Change package/case metadata from
TOtoSML-P11,1006 metric, or0402as supported by the property model. - Add terminal descriptions:
- Pin 1: Cathode
- Pin 2: Anode
- Consider setting pin groups/sections as Cathode and Anode or a general LED/Diode terminal grouping, depending on library convention.
- Review whether the footprint should use the datasheet recommended 0.6 mm × 0.5 mm pads instead of 0.7 mm × 0.7 mm pads. The current larger pads may still be manufacturable, but they are not a strict datasheet land-pattern match.
- Confirm after refresh that the Datasheet URL property resolves to ROHM's official PDF: https://fscdn.rohm.com/en/products/databook/datasheet/opto/led/chip_mono/sml-p11mtt86(r)-e.pdf
Scope
Current part information observed
Datasheet source
Key datasheet specs
Datasheet recommended land pattern
Current schematic symbol / terminals
Current footprint observed
Cross-check results
Matches
Mismatches / issues to flag
Recommended fixes
