component
SS54LB
Public Made by Adomby adom
XUMAO Schottky Diodes, SMB. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
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SS54LB
XUMAO · Schottky Diodes · SMB
SS54LB from XUMAO, in a SMB. 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 | XUMAO |
| Package | SMB |
| 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 Recurrent 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 | IO(AV) | 5 | A | 1 | |||
| Peak Forward Surge Current | IFSM | 100 | A | 8.3ms single half-sine-wave superimposed on rated load (JEDEC Method) | 1 | ||
| Forward Surge Current (Non-repetitive) | IFSM | 200 | A | @1ms, square wave, 1 cycle, Tj=25℃ | 1 | ||
| Current squared time | I2t | 41.5 | A2S | @1ms≤t≤8.3ms Tj=25℃, rating per diode | 1 | ||
| Operating Junction Temperature Range | TJ | -55 | 150 | ℃ | 1 | ||
| Storage Temperature Range | TSTG | -55 | 150 | ℃ | 1 | ||
| Typical Thermal Resistance, junction to ambient | RθJA | 65 | ℃/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 | Terminals:Tin Plated leads, solderable per Mil-STD-750 Method 2026 | 1 |
CAD (KiCad official)
- Symbol:
SS54LB - Footprint:
Diode_SMD:D_SMB - 3D model: SMB (KiCad packages3D, STEP)
- 3D model files:
ss54lb-etched.step/ss54lb-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ss54lb.step/ss54lb.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: XUMAO datasheet (5 pp, sha256
65e551ea81e0a18c, retrieved 2026-10-21, 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).
# SS54LB
**XUMAO** · Schottky Diodes · SMB
SS54LB from XUMAO, in a SMB. 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 | XUMAO |
| Package | SMB |
| 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 Recurrent 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 | IO(AV) | | | 5 | A | | 1 |
| Peak Forward Surge Current | IFSM | | | 100 | A | 8.3ms single half-sine-wave superimposed on rated load (JEDEC Method) | 1 |
| Forward Surge Current (Non-repetitive) | IFSM | | | 200 | A | @1ms, square wave, 1 cycle, Tj=25℃ | 1 |
| Current squared time | I2t | | | 41.5 | A2S | @1ms≤t≤8.3ms Tj=25℃, rating per diode | 1 |
| Operating Junction Temperature Range | TJ | -55 | | 150 | ℃ | | 1 |
| Storage Temperature Range | TSTG | -55 | | 150 | ℃ | | 1 |
| Typical Thermal Resistance, junction to ambient | RθJA | | 65 | | ℃/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 | Terminals:Tin Plated leads, solderable per Mil-STD-750 Method 2026 | 1 |
## CAD (KiCad official)
- Symbol: `SS54LB`
- Footprint: `Diode_SMD:D_SMB`
- 3D model: SMB (KiCad packages3D, STEP)
- 3D model files: `ss54lb-etched.step` / `ss54lb-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ss54lb.step` / `ss54lb.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [XUMAO datasheet](docs/ss54lb-datasheet.pdf) (5 pp, sha256 `65e551ea81e0a18c`, retrieved 2026-10-21, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `cathode-band convention` (convention), consensus `off` (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).
[Datasheet PDF](docs/ss54lb-datasheet.pdf)