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Ray Publish 0.1.0 7e00a16 3d ago

PTZTE259.1B-MS

MSKSEMI · Zener Diodes · SMA

PTZTE259.1B-MS from MSKSEMI, in a SMA. 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 K passive Cathode, the end marked with the color band; the Zener voltage VZ for this part is 9.1 V nominal (min 9.1 V, max 10.2 V at IZT = 40 mA).
2 A passive Anode terminal of the Zener diode; the datasheet gives a power dissipation rating of 1.0 W and a junction temperature of 150 °C.

Key specifications

Parameter Value
Manufacturer MSKSEMI
Package SMA
Category Diodes
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
Zener Voltage VZ 9.1 9.747 10.2 V Ta = 25 °C, IZT = 40 mA, measured 40 ms after power is supplied 3
Test Current IZT 40 mA Ta = 25 °C 3
Maximum Zener Impedance ZZ 6 Ω @ IZ = 40 mA 3
Maximum Reverse Current IR 20 μA @ VR = 6.0 V 3
Typical Temperature Coefficient αVZ 5.9 mV/ºC @ IZ = 40 mA 3
Power Dissipation PD 1 W Rating at 25 °C ambient temperature 2
Junction Temperature TJ 150 ºC 2
Storage Temperature Range TSTG -55 150 ºC 2

CAD (KiCad official)

  • Symbol: PTZTE259.1B-MS
  • Footprint: Diode_SMD:D_SMA
  • 3D model: SMA (KiCad packages3D, STEP)
  • 3D model files: ptzte259-1b-ms-etched.step / ptzte259-1b-ms-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ptzte259-1b-ms.step / ptzte259-1b-ms.glb are the bare package body.

Provenance

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

  • Datasheet: MSKSEMI datasheet (5 pp, sha256 740fd864e79fbbbc, retrieved 2026-10-22, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF