component
SK34B
Public Made by Adomby adom
Changzhou Starsea Elec Schottky Barrier Diodes (SBD), SMB(DO-214AA). Pinout cross-checked by two models against the datasheet, 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
markdownSK34B
Changzhou Starsea Elec · Schottky Barrier Diodes (SBD) · SMB(DO-214AA)
SK34B from Changzhou Starsea Elec, in a SMB(DO-214AA). 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 terminal, marked by the color band on the DO-214AA body; the SK34B blocks 40 V DC (VRRM 40 V) and carries 3.0 A average forward current. |
| 2 | A | passive | Anode terminal, the end opposite the color band; the SK34B has a maximum forward voltage of 0.55 V at 3.0 A. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Changzhou Starsea Elec |
| Package | SMB(DO-214AA) |
| Category | Diodes |
| 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 |
|---|---|---|---|---|---|---|---|
| Maximum repetitive peak reverse voltage | VRRM | 40 | V | 1 | |||
| Maximum RMS voltage | VRMS | 28 | V | 1 | |||
| Maximum DC blocking voltage | VDC | 40 | V | 1 | |||
| Maximum average forward rectified current | I(AV) | 3 | A | at TL (see fig.1) | 1 | ||
| Peak forward surge current | IFSM | 70 | A | 8.3ms single half sine-wave superimposed on rated load | 1 | ||
| Maximum instantaneous forward voltage | VF | 0.55 | V | at 3.0A | 1 | ||
| Maximum DC reverse current | IR | 0.5 | mA | TA=25 C, at rated DC blocking voltage | 1 | ||
| Maximum DC reverse current | IR | 20 | mA | TA=100 C, at rated DC blocking voltage | 1 | ||
| Operating junction temperature range | TJ | -55 | 125 | C | 1 | ||
| Storage temperature range | TSTG | -55 | 150 | C | 1 | ||
| Typical thermal resistance | RθJA | 68 | C/W | P.C.B. mounted with 0.2x0.2in (5.0x5.0mm) copper pad areas | 1 |
CAD (KiCad official)
- Symbol:
SK34B - Footprint:
Diode_SMD:D_SMB - 3D model: SMB(DO-214AA) (KiCad packages3D, STEP)
- 3D model files:
sk34b-etched.step/sk34b-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sk34b.step/sk34b.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Changzhou Starsea Elec datasheet (2 pp, sha256
7156da95b288a915, retrieved 2026-10-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text), consensusclaude-sonnet-5-5(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).