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Contents

README

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B59850C0120A570

TDK · Sensors, Transducers · Disc

B59850C0120A570 from TDK, in a Disc. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 1 passive First lead of the non-polarized leaded PTC disk (C850), ∅0.6 mm, 25 mm min length; rated 230 V DC or AC, Vmax 265 V, IR 220 mA, ISmax 2.2 A.
2 2 passive Second lead of the non-polarized leaded PTC disk (C850), ∅0.6 mm, 25 mm min length; rated 230 V DC or AC, Vmax 265 V, IR 220 mA, ISmax 2.2 A.

Key specifications

Parameter Value
Manufacturer TDK
Package Disc
Category Sensors, Transducers
Pins 2

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Minimum resistance Rmin 6 Ω 2
Tolerance of rated resistance RR ΔRR -20 20 % Tref = 120 °C 2
Max. operating voltage Vmax 265 V TA = 60 °C; DC or AC 2
Maximum switching current ISmax 2.2 A V = Vmax 2
Operating temperature range Top -40 125 °C V = 0 2
Operating temperature range Top 0 60 °C V = Vmax 2
Rated voltage VR 230 V DC or AC 2
Rated resistance RR 10 Ω 2
Rated current IR 220 mA 2
Switching current IS 330 mA 2
Residual current Ir 13 mA V = Vmax 2
Reference temperature Tref 120 °C 2

CAD (KiCad official)

  • Symbol: B59850C0120A570
  • Footprint: Adom_Gen:TDK_B59850
  • 3D model: Disc (KiCad packages3D, STEP)
  • 3D model files: b59850c0120a570-etched.step / b59850c0120a570-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); b59850c0120a570.step / b59850c0120a570.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: TDK datasheet (11 pp, sha256 82669ad15b3e8f71, retrieved 2026-11-05, tier: manufacturer)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF