component
1KSMB30CA
Public Made by Adomby adom
Littelfuse TVS, DO-214AA(SMBJ). 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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Contents
README
markdown1KSMB30CA
Littelfuse · TVS · DO-214AA(SMBJ)
1KSMB30CA from Littelfuse, in a DO-214AA(SMBJ). 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 | Littelfuse |
| Package | DO-214AA(SMBJ) |
| 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 |
|---|---|---|---|---|---|---|---|
| Breakdown Voltage (min) | VBR | 28.5 | V | @ IT 1 mA | 2 | ||
| Breakdown Voltage (max) | VBR | 31.5 | V | @ IT 1 mA | 2 | ||
| Maximum Clamping Voltage | VC | 41.4 | V | @ Ipp 24.2 A | 2 | ||
| Maximum Peak Pulse Current | Ipp | 24.2 | A | 2 | |||
| Maximum Reverse Leakage Current | IR | 1 | µA | @ VR (25.6 V) | 2 | ||
| Reverse Stand-off Voltage | VR | 25.6 | V | 2 | |||
| Peak Pulse Power Dissipation | PPPM | 1000 | W | at TA=25ºC, 10/1000µs waveform (Fig.2)(Note 1), (Note 2) | 1 | ||
| Power Dissipation on Infinite Heat Sink | PD | 5 | W | at TL=50ºC | 1 | ||
| Operating Temperature Range | TJ | -65 | 150 | °C | 1 | ||
| Storage Temperature Range | TSTG | -65 | 175 | °C | 1 | ||
| Temperature Coefficient of VBR | αT | 0.1 | % | VBR @ TJ = VBR@25°C x (1+αT x (TJ - 25)) | 1 | ||
| Typical Thermal Resistance Junction to Lead | RθJL | 20 | °C/W | 1 | |||
| Typical Thermal Resistance Junction to Ambient | RθJA | 100 | °C/W | 1 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | tin | • Matte tin lead-free Plated • Available in breakdown | 1 |
CAD (KiCad official)
- Symbol:
1KSMB30CA - Footprint:
Diode_SMD:D_SMB - 3D model: DO-214AA(SMBJ) (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Littelfuse datasheet (6 pp, sha256
5456789e35da8ee5, retrieved 2026-10-28, 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).