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LL4148 LL34
Public Made by Adomby adom
TDSEMIC Switching Diodes, LL-34. 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
markdownLL4148 LL34
TDSEMIC · Switching Diodes · LL-34
LL4148 LL34 from TDSEMIC, in a LL-34. 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, identified by the cathode mark band on the LL-34 glass MiniMELF case; reverse voltage VR 75 V (peak VRM 100 V). |
| 2 | A | passive | Anode at the end opposite the cathode band; average rectified forward current IF(AV) 200 mA, VF max 1 V at IF = 10 mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TDSEMIC |
| Package | LL-34 |
| Category | Diodes |
| Pins | 2 |
CAD (KiCad official)
- Symbol:
LL4148 LL34 - Footprint:
Diode_SMD:D_MiniMELF - 3D model: LL-34 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: TDSEMIC datasheet (5 pp, sha256
0e430cb53e6d405e, retrieved 2026-10-12, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(vision), consensusclaude-opus-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).