component

SMAJ48A-TR

Public Made by Adom

by adom

STMicroelectronics TVS, SMA(DO-214AC). Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.

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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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SMAJ48A-TR

STMicroelectronics · TVS · SMA(DO-214AC)

SMAJ48A-TR from STMicroelectronics, in a SMA(DO-214AC). 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 banded/marked end per the datasheet; pad 1 of the KiCad diode footprint.
2 A passive Anode.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package SMA(DO-214AC)
Category Circuit 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
Reverse leakage current, 25 °C IRM 0.2 µA @ VRM, 25 °C 3
Reverse leakage current, 85 °C IRM 1 µA @ VRM, 85 °C 3
Breakdown voltage VBR 48 V @ IR = 1 mA; pulse test tp < 50 ms 3
Breakdown voltage VBR 56.1 V @ IR = 1 mA; pulse test tp < 50 ms 3
Clamping voltage, 10/1000 µs VCL 77.4 V @ IPP = 5.2 A, 10/1000 µs 3
Dynamic resistance, 10/1000 µs RD 3.56 Ω 10/1000 µs 3
Clamping voltage, 8/20 µs VCL 100 V @ IPP = 23 A, 8/20 µs 3
Dynamic resistance, 8/20 µs RD 1.79 Ω 8/20 µs 3
Breakdown voltage VBR 53.3 V @ IR = 1 mA; pulse test tp < 50 ms 3
Voltage temperature coefficient αT 10.3 10-4/° C per footnote 3: VBR @ TJ = VBR @ 25 °C x (1 + αT x (TJ, 25)) 3
Peak pulse power dissipation PPP 400 W Tj initial = Tamb 2
Storage temperature range Tstg -65 150 °C 2
Operating junction temperature range Tj -55 150 °C 2
Maximum lead temperature for soldering TL 260 °C during 10 s 2
Thermal resistance junction to leads Rth(j-l) 30 °C/W 2
Thermal resistance junction to ambient Rth(j-a) 120 °C/W on printed circuit on recommended pad layout 2

CAD (KiCad official)

  • Symbol: SMAJ48A-TR
  • Footprint: Diode_SMD:D_SMA
  • 3D model: SMA(DO-214AC) (KiCad packages3D, STEP)
  • 3D model files: smaj48a-tr-etched.step / smaj48a-tr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); smaj48a-tr.step / smaj48a-tr.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (10 pp, sha256 4bb181453198810d, retrieved 2026-10-21, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins, primary cathode-band 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