# AB24S

**MDD(Microdiode Electronics)** · Bridge Rectifiers · ABS

AB24S from MDD(Microdiode Electronics), in a ABS. 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 | + | power_out | Positive DC output terminal of the bridge rectifier, identified by the polarity symbol marked on the body. |
| 2 | - | power_out | Negative DC output terminal of the bridge rectifier, identified by the polarity symbol marked on the body. |
| 3 | 3 | passive | AC input terminal of the bridge rectifier; the datasheet gives a maximum repetitive peak reverse voltage of 40 to 200 V for the AB24S to AB220S series. |
| 4 | 4 | passive | AC input terminal of the bridge rectifier; the datasheet gives a maximum repetitive peak reverse voltage of 40 to 200 V for the AB24S to AB220S series. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | MDD(Microdiode Electronics) |
| Package | ABS |
| Category | Diodes |
| Pins | 4 |

## 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 | IF(AV) |  |  | 2 | A |  | 1 |
| Peak forward surge current | IFSM |  |  | 50 | A | 8.3ms single half sine-wave superimposed on rated load (JEDEC Method) | 1 |
| Maximum instantaneous forward voltage drop | VF |  |  | 0.55 | V | per leg at 2A | 1 |
| Maximum DC reverse current | IR |  |  | 0.5 | mA | TA=25°C at rated DC blocking voltage | 1 |
| Maximum DC reverse current | IR |  |  | 10 | mA | TA=100°C at rated DC blocking voltage | 1 |
| Operating temperature range | TJ | -55 |  | 125 | °C |  | 1 |
| Storage temperature range | TSTG | -55 |  | 150 | °C |  | 1 |
| Typical thermal resistance, junction to ambient | RθJA |  | 70 |  | °C/W | Mounted on glass epoxy PCB with 4 X (5X5mm) copper pad (note 2) | 1 |
| Typical junction capacitance | Cj |  | 220 |  | pF | Measured at 1MHz and applied reverse voltage of 4 V DC (note 1) | 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 |
|---|---|---|---|---|
| housing | ABS |  | Case : JEDEC ABS Molded plastic body | 1 |

## CAD (KiCad official)

- Symbol: `AB24S`
- Footprint: `Diode_SMD:Diode_Bridge_Diotec_ABS`
- 3D model: ABS (KiCad packages3D, STEP)
- 3D model files: `ab24s-etched.step` / `ab24s-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ab24s.step` / `ab24s.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [MDD(Microdiode Electronics) datasheet](docs/ab24s-datasheet.pdf) (3 pp, sha256 `163735390dd1f7e1`, retrieved 2026-10-21, 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/ab24s-datasheet.pdf)