component

TRACO Power TSR 2-2450

Public Unreviewed

by Glenn Jones

Step-down switching regulator module, 5 V 2 A output, 6.5-36 V input, SIP-3 (LM78xx pin-compatible).

componentpowertraco-powersip-3dc-dcregulator
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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
screenshots Set hero asset · Glenn Jones 4d ago
hero.png 3D model and hero render · Glenn Jones 4d ago
LICENSE Add footprint, symbol, STEP, lbr and metadata (LEDster-TI parts) · Glenn Jones 7d ago
page.json Set visibility: public · Glenn Jones 4d ago
README.md Add footprint, symbol, STEP, lbr and metadata (LEDster-TI parts) · Glenn Jones 7d ago
tsr-2-2450.glb 3D model and hero render · Glenn Jones 4d ago
tsr-2-2450.kicad_mod Add footprint, symbol, STEP, lbr and metadata (LEDster-TI parts) · Glenn Jones 7d ago
tsr-2-2450.kicad_sym Add footprint, symbol, STEP, lbr and metadata (LEDster-TI parts) · Glenn Jones 7d ago
tsr-2-2450.lbr Add footprint, symbol, STEP, lbr and metadata (LEDster-TI parts) · Glenn Jones 7d ago
tsr-2-2450.step Add footprint, symbol, STEP, lbr and metadata (LEDster-TI parts) · Glenn Jones 7d ago

TRACO Power TSR 2-2450

Step-down switching regulator module, 5 V 2 A output, 6.5-36 V input, SIP-3 (LM78xx pin-compatible).
Manufacturer TRACO Power
MPN TSR 2-2450
Category power (DC/DC switching regulator module (78xx replacement))
Package SIP-3, 2.54 mm pitch, 14.0 x 7.5 x 10.1 mm
DigiKey 1951-2692-ND
Mouser 495-TSR2-2450
LCSC C5198099
Datasheet tsr2_datasheet.pdf

Distributor numbers and stock from the LEDster-TI BOM, checked 2026-11-02: DigiKey 1951-2692-ND (stock 7148), Mouser 495-TSR2-2450 (stock 3277), LCSC C5198099 (stock 1).

Files

  • tsr-2-2450.kicad_mod footprint (KiCad)
  • tsr-2-2450.kicad_sym symbol (KiCad)
  • tsr-2-2450.step 3D model (STEP, Z-up, body seated on z = 0 via its 0.5 mm stand-off feet, pins below the board, origin = pin 1)
  • tsr-2-2450.lbr Fusion / EAGLE library part (adom-lbr from the files above with this page's metadata; no embedded 3D, bind the STEP)

Provenance

  • tsr-2-2450.kicad_mod: KiCad Converter_DCDC:Converter_DCDC_TRACO_TSR2-xxxx_THT (https://gitlab.com/kicad/libraries/kicad-footprints/-/raw/master/Converter_DCDC.pretty/Converter_DCDC_TRACO_TSR2-xxxx_THT.kicad_mod, sha256/16 635b90558bb70236), model path changed to tsr-2-2450.step. Checked against the TRACO TSR 2 datasheet (https://www.tracopower.com/sites/default/files/products/datasheets/tsr2_datasheet.pdf, Rev. October 8, 2026, p.4 "Outline Dimensions"): pins 1-2-3 at 2.54 mm pitch; body 14.0 x 7.50 mm; pin 3 is 4.5 mm and pin 1 4.42 mm (14.0 - 4.5 - 5.08) from the body ends; pin row 3.89 mm from one long face. The KiCad fab outline is x -3.89..3.61, y -4.42..9.58: identical. Drill 1.1 mm for the 0.46 mm square pin (diagonal 0.65 mm); the datasheet gives no hole size.
  • tsr-2-2450.step: AI-created from the TRACO TSR 2 datasheet p.4 (Outline Dimensions). TRACO's own STEP (tsr2_3d_drawing.stp) is behind a registration form with a bot check on tracopower.com and was not downloaded; KiCad packages3D has no TSR2 model. Envelope model: body 14.0 x 7.50 mm, top at 10.1 mm, standing on two 0.5 mm stand-off feet (0.5 mm wide, full depth) at the ends; three 0.46 x 0.46 mm pins from z = -4.1 to the body. Written directly in the footprint frame (STEP y = -footprint y) by a small B-rep box writer (adom boxstep.py) and checked on the step2glb OCCT service (step2glb features). Not a manufacturer model; no internal detail.
  • Which long face the 3.89 mm is measured from is read from the third-angle bottom view (the pin-1 dot face); KiCad's footprint makes the same choice (pin-1 marker on the 3.89 mm side). Datasheet tolerance x.xx +/-0.5 mm.
  • Upstream terms: KiCad official library (gitlab.com/kicad/libraries/kicad-footprints, kicad-packages3D and kicad-symbols, master, fetched 2026-11-02). License: CC-BY-SA 4.0 with the KiCad libraries exception (using these files in a design, and distributing the design or its manufacturing output, does not require the design to be licensed under CC-BY-SA).
  • tsr-2-2450.kicad_sym: KiCad Regulator_Linear:L7812 (which extends L7805; resolved) used as a generic 3-pin regulator symbol: pins 1 VI, 2 GND, 3 VO (renamed from IN / OUT), renamed to the MPN. TRACO pinout (datasheet p.4): 1 +Vin, 2 GND, 3 +Vout.

License

Adom-authored content CC-BY-4.0; third-party files keep their upstream terms (see LICENSE).