# 3SMAJ5928B-TP

**MCC(Micro Commercial Components)** · Zener Diodes · DO-214AC(SMA)

3SMAJ5928B-TP from MCC(Micro Commercial Components), in a DO-214AC(SMA). 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 | MCC(Micro Commercial Components) |
| Package | DO-214AC(SMA) |
| 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 tolerance (B suffix, +/-5%) |  | -5 |  | 5 | % | Type numbers with B suffix; Note 4 | 2 |
| Maximum forward voltage | VF |  |  | 1.5 | V | IF=200mA | 1 |
| Steady state power dissipation | PD |  |  | 3 | W | Lead temperature TL=75°C; mounted on 5.0mm² (1oz) land areas (Note 3) | 1 |
| Operating junction temperature range | TJ | -55 |  | 150 | °C |  | 1 |
| Storage temperature range | TSTG | -55 |  | 150 | °C |  | 1 |
| Thermal resistance junction to lead | RθJL |  | 25 |  | °C/W | Junction to lead | 1 |
| Thermal resistance junction to ambient | RθJA |  | 135 |  | °C/W | Junction to ambient | 1 |
| Maximum dynamic impedance | ZZT |  |  | 7 | Ω | @ IZT | 2 |
| Maximum knee impedance | ZZK |  |  | 550 | Ω | @ IZK | 2 |
| Maximum reverse current | IR |  |  | 1 | µA | VR = 9.9 V | 2 |
| Maximum DC zener current | IZM |  |  | 230 | mA |  | 2 |
| Nominal zener voltage | VZ |  | 13 |  | V | IZT = 28.8 mA; ±5% tolerance per Note 4 | 2 |
| Zener test current | IZT |  | 28.8 |  | mA | Test current for VZ | 2 |
| Knee current | IZK |  | 0.25 |  | mA |  | 2 |
| Reverse voltage (IR test point) | VR |  | 9.9 |  | V | Voltage at which IR is specified | 2 |

## CAD (KiCad official)

- Symbol: `3SMAJ5928B-TP`
- Footprint: `Diode_SMD:D_SMA`
- 3D model: DO-214AC(SMA) (KiCad packages3D, STEP)
- 3D model files: `3smaj5928b-tp-etched.step` / `3smaj5928b-tp-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `3smaj5928b-tp.step` / `3smaj5928b-tp.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [MCC(Micro Commercial Components) datasheet](docs/3smaj5928b-tp-datasheet.pdf) (4 pp, sha256 `8c42a0323dff5503`, 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/3smaj5928b-tp-datasheet.pdf)