# SR2150

**MDD（Microdiode Electronics）** · Schottky Barrier Diodes (SBD) · DO-15

SR2150 from MDD（Microdiode Electronics）, in a DO-15. 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 terminal, marked by the color band on the DO-15 molded plastic body; SR2150 blocks up to 150 V DC (VRRM 150 V) and carries 2.0 A average forward current. |
| 2 | A | passive | Anode terminal at the end of the body opposite the color band; solder plated axial lead, 0.70-0.86 mm (0.028-0.034 in) diameter, 25.4 mm minimum length. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | MDD（Microdiode Electronics） |
| Package | DO-15 |
| 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 instantaneous forward voltage | VF |  |  | 0.85 | V | at 2.0A | 1 |
| Maximum repetitive peak reverse voltage | VRRM |  |  | 150 | V |  | 1 |
| Maximum RMS voltage | VRMS |  |  | 105 | V |  | 1 |
| Maximum DC blocking voltage | VDC |  |  | 150 | V |  | 1 |
| Maximum average forward rectified current | I(AV) |  |  | 2 | A | 0.375"(9.5mm) lead length | 1 |
| Peak forward surge current | IFSM |  |  | 60 | A | 8.3ms single half sine-wave superimposed on rated load (JEDEC Method) | 1 |
| Storage temperature range | TSTG | -65 |  | 150 | °C |  | 1 |
| Typical junction capacitance | CJ |  | 80 |  | pF | Measured at 1MHz and applied reverse voltage of 4.0V D.C. | 1 |
| Typical thermal resistance | RθJA |  | 50 |  | ℃/W | junction to ambient, 0.375"(9.5mm) lead length, P.C.B. mounted | 1 |

## CAD (KiCad official)

- Symbol: `SR2150`
- Footprint: `Diode_THT:D_DO-15_P12.70mm_Horizontal`
- 3D model: DO-15 (KiCad packages3D, STEP)

## Provenance

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

- **Datasheet:** [MDD（Microdiode Electronics） datasheet](docs/sr2150-datasheet.pdf) (2 pp, sha256 `fc36f5a9346b58a4`, retrieved 2026-10-22, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-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/sr2150-datasheet.pdf)