component
M520
Public Made by Adomby adom
DOWO Diodes - General Purpose, DO-214AC(SMA). Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
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M520
DOWO · Diodes - General Purpose · DO-214AC(SMA)
M520 from DOWO, 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 | DOWO |
| 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 |
|---|---|---|---|---|---|---|---|
| Maximum Repetitive Peak Reverse Voltage | VRRM | 2000 | V | 1 | |||
| Maximum RMS Voltage | VRMS | 1400 | V | 1 | |||
| Maximum DC blocking Voltage | VDC | 2000 | V | 1 | |||
| Forward Surge Current (Non-repetitive) | IFSM | 30 | A | @60Hz Half-sine wave, 1 cycle, Tj=25℃ | 1 | ||
| Current squared time | I2t | 3.735 | A2s | @1ms≤t≤8.3ms Tj=25℃ | 1 | ||
| Storage temperature | Tstg | -55 | 150 | ℃ | 1 | ||
| Junction temperature | Tj | -55 | 150 | ℃ | 1 | ||
| Maximum instantaneous forward voltage | VF | 1.1 | V | IFM=1.0A | 1 | ||
| Maximum DC reverse current at rated DC blocking voltage | IR | 2 | μA | Tj =25℃ | 1 | ||
| Maximum DC reverse current at rated DC blocking voltage | IR | 100 | μA | Tj =125℃ | 1 | ||
| Typical junction capacitance | Cj | 7 | pF | Measured at 1MHz and Applied Reverse Voltage of 4.0 V.D.C | 1 | ||
| Typical Thermal Resistance junction to ambient | RθJ-A | 70 | ℃/W | Thermal resistance from junction to ambient mounted on P.C.B. with 0.2" x 0.2" (5.0 mm x 5.0 mm) copper pad areas | 2 | ||
| Typical Thermal Resistance junction to lead | RθJ-L | 25 | ℃/W | Thermal resistance from junction to lead mounted on P.C.B. with 0.2" x 0.2" (5.0 mm x 5.0 mm) copper pad areas | 2 | ||
| Typical Thermal Resistance junction to case | RθJ-C | 15 | ℃/W | 2 |
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 |
|---|---|---|---|---|
| contacts | tin | ● Terminals: Tin plated leads, solderable per J-STD-002 and JESD22-B102 | 1 |
CAD (KiCad official)
- Symbol:
M520 - Footprint:
Diode_SMD:D_SMA - 3D model: DO-214AC(SMA) (KiCad packages3D, STEP)
- 3D model files:
m520-etched.step/m520-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);m520.step/m520.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: DOWO datasheet (2 pp, sha256
2b92c93016ceeaa8, retrieved 2026-10-21, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins, primarycathode-band convention(convention), consensusoff(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).
# M520
**DOWO** · Diodes - General Purpose · DO-214AC(SMA)
M520 from DOWO, 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 | DOWO |
| 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 |
|---|---|---|---|---|---|---|---|
| Maximum Repetitive Peak Reverse Voltage | VRRM | | | 2000 | V | | 1 |
| Maximum RMS Voltage | VRMS | | | 1400 | V | | 1 |
| Maximum DC blocking Voltage | VDC | | | 2000 | V | | 1 |
| Forward Surge Current (Non-repetitive) | IFSM | | | 30 | A | @60Hz Half-sine wave, 1 cycle, Tj=25℃ | 1 |
| Current squared time | I2t | | | 3.735 | A2s | @1ms≤t≤8.3ms Tj=25℃ | 1 |
| Storage temperature | Tstg | -55 | | 150 | ℃ | | 1 |
| Junction temperature | Tj | -55 | | 150 | ℃ | | 1 |
| Maximum instantaneous forward voltage | VF | | | 1.1 | V | IFM=1.0A | 1 |
| Maximum DC reverse current at rated DC blocking voltage | IR | | | 2 | μA | Tj =25℃ | 1 |
| Maximum DC reverse current at rated DC blocking voltage | IR | | | 100 | μA | Tj =125℃ | 1 |
| Typical junction capacitance | Cj | | 7 | | pF | Measured at 1MHz and Applied Reverse Voltage of 4.0 V.D.C | 1 |
| Typical Thermal Resistance junction to ambient | RθJ-A | | 70 | | ℃/W | Thermal resistance from junction to ambient mounted on P.C.B. with 0.2" x 0.2" (5.0 mm x 5.0 mm) copper pad areas | 2 |
| Typical Thermal Resistance junction to lead | RθJ-L | | 25 | | ℃/W | Thermal resistance from junction to lead mounted on P.C.B. with 0.2" x 0.2" (5.0 mm x 5.0 mm) copper pad areas | 2 |
| Typical Thermal Resistance junction to case | RθJ-C | | 15 | | ℃/W | | 2 |
## 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 |
|---|---|---|---|---|
| contacts | | tin | ● Terminals: Tin plated leads, solderable per J-STD-002 and JESD22-B102 | 1 |
## CAD (KiCad official)
- Symbol: `M520`
- Footprint: `Diode_SMD:D_SMA`
- 3D model: DO-214AC(SMA) (KiCad packages3D, STEP)
- 3D model files: `m520-etched.step` / `m520-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `m520.step` / `m520.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [DOWO datasheet](docs/m520-datasheet.pdf) (2 pp, sha256 `2b92c93016ceeaa8`, 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/m520-datasheet.pdf)