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BRMMSZ5228B
Public Made by Adomby adom
Foshan Blue Rocket Elec Zener Diodes, SOD-123. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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BRMMSZ5228B
Foshan Blue Rocket Elec · Zener Diodes · SOD-123
BRMMSZ5228B from Foshan Blue Rocket Elec, in a SOD-123. 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 | Cathode | passive | Cathode terminal of the Zener diode, identified as PIN1 in the datasheet pinning (the datasheet gives no separate pin-level electrical limits). |
| 2 | Anode | passive | Anode terminal of the Zener diode, identified as PIN2 in the datasheet pinning (the datasheet gives no separate pin-level electrical limits). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Foshan Blue Rocket Elec |
| Package | SOD-123 |
| 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 |
|---|---|---|---|---|---|---|---|
| Zener voltage | Vz | 3.71 | 3.9 | 4.1 | V | @ IzT = 20 mA (Note 2) | 2 |
| Max Zener impedance | ZZt | 23 | Ω | @ IzT = 20 mA (Note 3: f = 1kHz) | 2 | ||
| Max Zener impedance (knee) | ZZk | 1900 | Ω | @ IZK = 0.25 mA (Note 3: f = 1kHz) | 2 | ||
| Max reverse leakage current | IR | 10 | µA | @ VR = 1 V (Note 2) | 2 | ||
| Forward voltage | VF | 0.9 | V | IF = 10 mA (Note 2) | 2 | ||
| Power dissipation | PD | 500 | mW | Note 1: ceramic PCB, 25 mm2 pad areas | 2 | ||
| Thermal resistance junction to ambient air | RθJA | 350 | ℃/W | Note 1: ceramic PCB, 25 mm2 pad areas | 2 | ||
| Operating and storage temperature range | Tj,Tstg | -65 | 150 | ℃ | 2 |
CAD (KiCad official)
- Symbol:
BRMMSZ5228B - Footprint:
Diode_SMD:D_SOD-123F - 3D model: SOD-123 (KiCad packages3D, STEP)
- 3D model files:
brmmsz5228b-etched.step/brmmsz5228b-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);brmmsz5228b.step/brmmsz5228b.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Foshan Blue Rocket Elec datasheet (7 pp, sha256
7de1eeb7011ccfd3, retrieved 2026-10-18, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-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).
# BRMMSZ5228B
**Foshan Blue Rocket Elec** · Zener Diodes · SOD-123
BRMMSZ5228B from Foshan Blue Rocket Elec, in a SOD-123. 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 | Cathode | passive | Cathode terminal of the Zener diode, identified as PIN1 in the datasheet pinning (the datasheet gives no separate pin-level electrical limits). |
| 2 | Anode | passive | Anode terminal of the Zener diode, identified as PIN2 in the datasheet pinning (the datasheet gives no separate pin-level electrical limits). |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Foshan Blue Rocket Elec |
| Package | SOD-123 |
| 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 |
|---|---|---|---|---|---|---|---|
| Zener voltage | Vz | 3.71 | 3.9 | 4.1 | V | @ IzT = 20 mA (Note 2) | 2 |
| Max Zener impedance | ZZt | | | 23 | Ω | @ IzT = 20 mA (Note 3: f = 1kHz) | 2 |
| Max Zener impedance (knee) | ZZk | | | 1900 | Ω | @ IZK = 0.25 mA (Note 3: f = 1kHz) | 2 |
| Max reverse leakage current | IR | | | 10 | µA | @ VR = 1 V (Note 2) | 2 |
| Forward voltage | VF | | | 0.9 | V | IF = 10 mA (Note 2) | 2 |
| Power dissipation | PD | | | 500 | mW | Note 1: ceramic PCB, 25 mm2 pad areas | 2 |
| Thermal resistance junction to ambient air | RθJA | | | 350 | ℃/W | Note 1: ceramic PCB, 25 mm2 pad areas | 2 |
| Operating and storage temperature range | Tj,Tstg | -65 | | 150 | ℃ | | 2 |
## CAD (KiCad official)
- Symbol: `BRMMSZ5228B`
- Footprint: `Diode_SMD:D_SOD-123F`
- 3D model: SOD-123 (KiCad packages3D, STEP)
- 3D model files: `brmmsz5228b-etched.step` / `brmmsz5228b-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `brmmsz5228b.step` / `brmmsz5228b.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Foshan Blue Rocket Elec datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588911078017679360) (7 pp, sha256 `7de1eeb7011ccfd3`, retrieved 2026-10-18, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-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).
[Datasheet PDF](docs/brmmsz5228b-datasheet.pdf)