LW A6SG-V2BA-FK0PN0

ams OSRAM · Standard LEDs - SMD, White SIDELED® · SIDELED®

A white, side-emitting SIDELED® from ams OSRAM: light leaves through the domed lens on one vertical face, parallel to the board, rather than upward. ThinGaN chip, diffused silicone resin, 120° Lambertian, binned to Cx = Cy = 0.33 and 900–2240 mcd at 20 mA. Ordering code Q65113A1198.

Pinout, land pattern and body dimensions are read off the manufacturer datasheet; the symbol, footprint and 3D model are generated from those numbers.

Pinout

Pin 1 is the cathode, and on this footprint it is the RIGHT-hand pad when the lens points up the page. The datasheet's front view (p.14) labels the left lead "Cathode", but a front view looks at the part from the lens side while a footprint looks down at the board — the two see the lead axis from opposite sides, so the cathode swaps ends between them. The vendor CAD is unambiguous: the cathode marking on the top face has no mirror partner and sits over the +X pad. The footprint repeats it as a filled silkscreen triangle behind that pad.

Key specifications

Electrical and optical

Brightness bins for this ordering code: V2 (900–1120 mcd), AA (1120–1400), AB (1400–1800), BA (1800–2240), all at IF = 20 mA (p.5). Chromaticity bin group FK0…PN0 (p.6–8). MSL 2 per JEDEC J-STD-020E, reflow peak 245 °C (p.16). ESD 2 kV HBM Class 2. Corrosion robustness class 1B. Approximate weight 67.0 mg.

Land pattern

From the datasheet's Recommended Solder Pad drawing (p.15):

Lead spacing on the part is 2.54 mm (p.14) while the recommended land is drawn on a 2.50 mm pitch — the 0.04 mm difference sits well inside the 1.2 mm pad for a 1.0 mm lead, and the footprint follows the manufacturer's land drawing.

The datasheet asks for a nitrogen reflow atmosphere for best joint quality, and the package is not suitable for ultrasonic cleaning (p.15).

CAD

• Symbol LW_A6SG-V2BA-FK0PN0 — standard 2-pin LED, pin 1 K / pin 2 A.
• Footprint LED_SIDELED_LW-A6SG — emission direction is −Y, marked with an arrow and the Ø2.4 mm lens window on F.Fab; pin 1 is the +X pad.
• 3D lw-a6sg-v2ba-fk0pn0.step (+ GLB) — the official ams OSRAM geometry, 4.00 × 3.765 × 4.025 mm, origin on the land pattern, part sitting on Z = 0.
• EAGLE lw-a6sg-v2ba-fk0pn0.lbr — same package, symbol and device set.

Provenance

Everything here is traceable to the manufacturer datasheet rather than a distributor listing:

• Datasheet: ams OSRAM, LW A6SG binning FK0PN0, v1.1, 2020-06-01 (25 pp, sha256 93722427bd3f7bbb, retrieved 2026-08-27)

• Pins and electricals: read from pp. 2–6 and 14–16; every row above cites its page.

• Land pattern: p.15 Recommended Solder Pad, used as drawn.

• 3D model and body outline: the official ams OSRAM geometry file LW_A6SG_20091210_geometry.STEP, kept in this repo unmodified. The shipped lw-a6sg-v2ba-fk0pn0.step is that file moved into KiCad coordinates by a rigid rotation and translation only — no geometry is regenerated:

  x = -Xo          y = Zo + 2.225          z = Yo + 2.575
  

  det = +1, so no mirroring. tools/place_step.py performs it and pins the representation's own datum axis to identity so every reader agrees on where the part sits. The offsets come from the vendor model itself: the foot's flat contact runs Zo = −3.475 … −0.975 (centre −2.225) and its underside is at Yo = −2.575.

The vendor CAD also corrects two things a reading of the drawings alone gets wrong:

1. Polarity. See the pinout note above — the cathode is the +X pad on the footprint, not the −X pad that the front view suggests.
2. There is no 0.80 mm standoff. The (0.8) in the side view is the gull-wing rise, not a gap under the body: the body underside sits 0.055 mm off the board, the optical axis is 2.575 mm up, and the package is 4.025 mm tall overall.

Sourcing

The bare LW A6SG-V2BA-FK0PN0 ordering code is marked obsolete / not recommended for new designs; the -0-20-R33 tape-and-reel variant is the one still stocked. Check availability before committing a design.

Datasheet PDF