component

SMTPA220

Public Made by Adom

by adom

STMicroelectronics Thyristor Surge Suppressors (TSS), SMB. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.

componenttvs-fuse-board level protectionsmtpa220factory-2.0.0extractor-text
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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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docs Publish 0.1.0 · Ray 14d ago
viewers smtpa220: symbol repaired (bidirectional TVS (the page says so)) · Ray 5d ago
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README.md Publish 0.1.0 · Ray 14d ago
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smtpa220-etched.step smtpa220: factory component page (tier=mfr) · Ray 14d ago
smtpa220-hero.glb smtpa220: hero GLB from the etched model (keeps the MPN mark) · Ray 14d ago
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smtpa220.glb Publish 0.1.0 · Ray 14d ago
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smtpa220.kicad_sym smtpa220: symbol repaired (bidirectional TVS (the page says so)) · Ray 5d ago
smtpa220.lbr smtpa220: symbol repaired (bidirectional TVS (the page says so)) · Ray 5d ago
smtpa220.step Publish 0.1.0 · Ray 14d ago

SMTPA220

STMicroelectronics · Thyristor Surge Suppressors (TSS) · SMB

SMTPA220 from STMicroelectronics, in a SMB. 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 Terminal 1 of an unpolarised fuse; either orientation.
2 2 passive Terminal 2 of an unpolarised fuse; either orientation.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package SMB
Category TVS/Fuse/Board Level Protection
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
Leakage current at stand-off voltage IRM 2 µA @ VRM = 198 V, Tamb = 25°C 4
Stand-off voltage VRM 198 V Tamb = 25°C 4
Leakage current at VR IR 5 µA @ VR = 220 V; IR measured at VR guarantee VBR min ≥ VR 4
Continuous reverse voltage VR 220 V Tamb = 25°C 4
Dynamic breakover voltage VBO 285 V Dynamic, see functional test circuit 1 (Figure 9) 4
Static breakover voltage VBO 293 V Static @ IBO, see test circuit 2 (Figure 10) 4
Breakover current IBO 800 mA See test circuit 2 (Figure 10) 4
Holding current IH 150 mA See functional holding current test circuit 3 (Figure 11) 4
Capacitance C 12 pF VR = 50 V bias, VRMS = 1 V, F = 1 MHz 4
Capacitance C 25 pF VR = 2 V bias, VRMS = 1 V, F = 1 MHz 4
Repetitive peak pulse current IPP 50 A 10/1000 µs 2
Repetitive peak pulse current IPP 150 A 8/20 µs 2
Repetitive peak pulse current IPP 55 A 10/560 µs 2
Repetitive peak pulse current IPP 65 A 5/310 µs 2
Repetitive peak pulse current IPP 75 A 10/160 µs 2
Repetitive peak pulse current IPP 100 A 1/20 µs 2
Fail-safe mode maximum current IFS 2.5 kA 8/20 µs; in fail safe mode the device acts as a short circuit 2
Non repetitive surge peak on-state current ITSM 16 A t = 0.2 s, sinusoidal 2
Non repetitive surge peak on-state current ITSM 11.5 A t = 1 s, sinusoidal 2
Non repetitive surge peak on-state current ITSM 10 A t = 2 s, sinusoidal 2
Non repetitive surge peak on-state current ITSM 3.5 A t = 15 mn, sinusoidal 2
I²t value for fusing I²t 6.2 A²s t = 16.6 ms 2
I²t value for fusing I²t 6.5 A²s t = 20 ms 2
Storage temperature range Tstg -55 150 °C 2
Maximum junction temperature Tj 150 °C 2
Maximum lead temperature for soldering TL 260 °C during 10 s 2
Junction to ambient thermal resistance Rth(j-a) 100 °C/W SMB, with recommended footprint 3
Junction to leads thermal resistance Rth(j-l) 20 °C/W SMB 3

CAD (KiCad official)

  • Symbol: SMTPA220
  • Footprint: Diode_SMD:D_SMB
  • 3D model: SMB (KiCad packages3D, STEP)
  • 3D model files: smtpa220-etched.step / smtpa220-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); smtpa220.step / smtpa220.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (11 pp, sha256 d17787688e344d7b, retrieved 2026-10-26, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins, primary two-terminal convention (convention), consensus off (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