component
S-SMAJ28CA
Public Made by Adomby adom
LRC TVS, SMA. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownS-SMAJ28CA
LRC · TVS · SMA
S-SMAJ28CA from LRC, 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 | 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 | LRC |
| Package | SMA |
| 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 |
|---|---|---|---|---|---|---|---|
| Reverse Breakdown Voltage Min | VBR | 31.1 | V | @IT = 1.00 mA | 2 | ||
| Reverse Breakdown Voltage Max | VBR | 34.4 | V | @IT = 1.00 mA | 2 | ||
| Maximum Clamping Voltage | VC | 45.4 | V | @IPP = 8.80 A | 2 | ||
| Peak Pulse Current | IPP | 8.8 | A | 2 | |||
| Reverse Leakage Current | IR | 1 | uA | @VRWM | 2 | ||
| Reverse Stand-off Voltage | VRWM | 28 | V | 2 | |||
| Test Current | IT | 1 | mA | 2 | |||
| Peak Power Dissipation | PPPM | 400 | W | TA=25°C, TP=1ms (Note 1) | 1 | ||
| Steady State Power Dissipation | PM(AV) | 1 | W | TL=75°C (Note 2) | 1 | ||
| Operating Temperature Range | TJ | -55 | 150 | °C | 1 | ||
| Storage Temperature Range | TSTG | -55 | 150 | °C | 1 | ||
| Typical thermal resistance junction to ambient | RθJA | 150 | ℃/W | Note 3 | 1 | ||
| Typical thermal resistance junction to case | RθJC | 45 | ℃/W | Note 3 | 1 |
CAD (KiCad official)
- Symbol:
S-SMAJ28CA - Footprint:
Diode_SMD:D_SMA - 3D model: SMA (KiCad packages3D, STEP)
- 3D model files:
s-smaj28ca-etched.step/s-smaj28ca-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);s-smaj28ca.step/s-smaj28ca.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: LRC datasheet (5 pp, sha256
258a92f116d94c48, retrieved 2026-10-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins, primarytwo-terminal convention(convention), consensusoff(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).