component
SMLJ26A
Public Made by Adomby adom
BOURNS ESD And Surge Protection (TVS/ESD), SMC(DO-214AB). 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
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
README
markdownSMLJ26A
BOURNS · ESD And Surge Protection (TVS/ESD) · SMC(DO-214AB)
SMLJ26A from BOURNS, in a SMC(DO-214AB). 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 | BOURNS |
| Package | SMC(DO-214AB) |
| 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 |
|---|---|---|---|---|---|---|---|
| Breakdown Voltage (unidirectional SMLJ26A) | VBR | 28.9 | 31.9 | V | @ IT = 1 mA | 2 | |
| Maximum Reverse Leakage | IR | 2 | μA | @ VRWM | 2 | ||
| Maximum Clamping Voltage (10/1000 µs) | Vc | 42.1 | V | @ Ipp (10/1000 µs) | 2 | ||
| Maximum Peak Pulse Current (10/1000 µs) | Ipp | 71.2 | A | 10/1000 µs | 2 | ||
| Maximum Clamping Voltage (8/20 µs) | Vc | 54.7 | V | @ Ipp (8/20 µs) | 2 | ||
| Maximum Peak Pulse Current (8/20 µs) | Ipp | 356.5 | A | 8/20 µs | 2 | ||
| Working Peak Reverse Voltage | VRWM | 26 | V | 2 | |||
| Maximum Instantaneous Forward Voltage (unidirectional, SMLJ5.0A~SMLJ90A column) | VF | 3.5 | V | @ IPP = 100 A, unidirectional units only | 1 | ||
| Minimum Peak Pulse Power Dissipation | PPK | 3000 | W | TP = 1 ms (Note 1,2) | 1 | ||
| Peak Forward Surge Current | IFSM | 300 | A | 8.3 ms single half sine wave superimposed on rated load (JEDEC method) (Note 3) | 1 | ||
| Steady State Power Dissipation | PM(AV) | 5 | W | @ TL = 75 °C | 1 | ||
| Operating Temperature Range | TJ | -55 | 150 | °C | 1 | ||
| Storage Temperature Range | TSTG | -55 | 150 | °C | 1 | ||
| Typical Temperature Coefficient | DVBR | 0.1 | % | DVBR = 0.1 % x VBR @ 25 °C x DT (typical) | 1 |
CAD (KiCad official)
- Symbol:
SMLJ26A - Footprint:
Diode_SMD:D_SMC - 3D model: SMC(DO-214AB) (KiCad packages3D, STEP)
- 3D model files:
smlj26a-etched.step/smlj26a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smlj26a.step/smlj26a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: BOURNS datasheet (6 pp, sha256
42dea63b7010613e, retrieved 2026-10-16, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins, primarycathode-band 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).