# FR2M

**DIYI Elec Tech** · Fast Recovery / High Efficiency Diodes · SMB

FR2M from DIYI Elec Tech, 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 | DIYI Elec Tech |
| 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 |  |  | 1000 | V |  | 1 |
| Maximum RMS Voltage | VRMS |  |  | 700 | V |  | 1 |
| Maximum DC Blocking Voltage | VDC |  |  | 1000 | V |  | 1 |
| Average Rectified Output Current | IF(AV) |  |  | 2 | A |  | 1 |
| Peak Forward Surge Current | IFSM |  |  | 70 | A | 8.3ms single half sine-wave superimposed on rated load (JEDEC Method) | 1 |
| Forward Voltage | VF |  |  | 1.3 | V | IF=2.0A | 1 |
| Peak Reverse Current | IR |  |  | 5 | uA | At Rated DC Blocking Voltage | 1 |
| Maximum Reverse Recovery Time | Trr |  |  | 500 | ns | IF=0.5A, IR=1.0A, IRR=0.25A | 1 |
| Operating Temperature Range | TJ | -55 |  | 150 | ℃ |  | 1 |
| Storage Temperature Range | TSTG | -55 |  | 150 | ℃ |  | 1 |
| Typical Junction Capacitance | CJ |  | 10 |  | pF | Measured at 1.0 MHz and applied reverse voltage of 4.0V DC | 1 |
| Typical Thermal Resistance Junction to Ambient | RθJA |  | 60 |  | ℃/W |  | 1 |

## CAD (KiCad official)

- Symbol: `FR2M`
- Footprint: `Diode_SMD:D_SMB`
- 3D model: SMB (KiCad packages3D, STEP)
- 3D model files: `fr2m-etched.step` / `fr2m-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `fr2m.step` / `fr2m.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [DIYI Elec Tech datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603352212613574656) (3 pp, sha256 `530538cd4b47233e`, retrieved 2026-10-14, 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/fr2m-datasheet.pdf)