component
EM520S
Public Made by Adomby adom
XCH(旭昌辉) , SMA. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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EM520S
XCH(旭昌辉) · IC · SMA
EM520S from XCH(旭昌辉), in a 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 end, marked by the color band on the package; the diode blocks up to VRRM 2000 V and conducts 1.0 A average forward current. |
| 2 | A | passive | Anode end, opposite the color band; forward voltage is 1.10 V maximum at IF=1.0 A. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | XCH(旭昌辉) |
| Package | SMA |
| Category | |
| 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 | 2000 | V | 1 | |||
| Maximum RMS voltage | VRMS | 1400 | V | 1 | |||
| Maximum DC blocking voltage | VDC | 2000 | V | 1 | |||
| Maximum average forward rectified current | IF(AV) | 1 | A | Note1: mounted on PCB with 0.2" x 0.2" (5.0 mm x 5.0 mm) copper pad areas | 1 | ||
| Peak forward surge current | IFSM | 30 | A | 8.3 ms single half sine-wave superimposed on rated load | 1 | ||
| Storage temperature range | TS | -55 | 150 | °C | 1 | ||
| Operating junction temperature range | Tj | -55 | 125 | °C | 1 | ||
| Maximum forward voltage | VF | 1.1 | V | IF=1.0 A | 1 | ||
| Maximum DC reverse current at rated DC blocking voltage, TA=25°C | IR | 5 | μA | at rated DC blocking voltage, TA=25°C | 1 | ||
| Maximum DC reverse current at rated DC blocking voltage, TA=100°C | IR | 50 | μA | at rated DC blocking voltage, TA=100°C | 1 | ||
| Thermal resistance, junction to lead (Note1) | RthJL | 30 | °C/W | Note1: mounted on PCB with 0.2" x 0.2" (5.0 mm x 5.0 mm) copper pad areas | 1 | ||
| Typical junction capacitance | Cj | 15 | pF | 4.0 V, 1 MHz | 1 |
CAD (KiCad official)
- Symbol:
EM520S - Footprint:
Diode_SMD:D_SMA - 3D model: SMA (KiCad packages3D, STEP)
- 3D model files:
em520s-etched.step/em520s-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);em520s.step/em520s.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: XCH(旭昌辉) datasheet (2 pp, sha256
7bc5621ba8b5c528, retrieved 2026-10-17, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-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).
# EM520S
**XCH(旭昌辉)** · IC · SMA
EM520S from XCH(旭昌辉), in a 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 end, marked by the color band on the package; the diode blocks up to VRRM 2000 V and conducts 1.0 A average forward current. |
| 2 | A | passive | Anode end, opposite the color band; forward voltage is 1.10 V maximum at IF=1.0 A. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | XCH(旭昌辉) |
| Package | SMA |
| Category | |
| 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 | | | 2000 | V | | 1 |
| Maximum RMS voltage | VRMS | | | 1400 | V | | 1 |
| Maximum DC blocking voltage | VDC | | | 2000 | V | | 1 |
| Maximum average forward rectified current | IF(AV) | | | 1 | A | Note1: mounted on PCB with 0.2" x 0.2" (5.0 mm x 5.0 mm) copper pad areas | 1 |
| Peak forward surge current | IFSM | | | 30 | A | 8.3 ms single half sine-wave superimposed on rated load | 1 |
| Storage temperature range | TS | -55 | | 150 | °C | | 1 |
| Operating junction temperature range | Tj | -55 | | 125 | °C | | 1 |
| Maximum forward voltage | VF | | | 1.1 | V | IF=1.0 A | 1 |
| Maximum DC reverse current at rated DC blocking voltage, TA=25°C | IR | | | 5 | μA | at rated DC blocking voltage, TA=25°C | 1 |
| Maximum DC reverse current at rated DC blocking voltage, TA=100°C | IR | | | 50 | μA | at rated DC blocking voltage, TA=100°C | 1 |
| Thermal resistance, junction to lead (Note1) | RthJL | | 30 | | °C/W | Note1: mounted on PCB with 0.2" x 0.2" (5.0 mm x 5.0 mm) copper pad areas | 1 |
| Typical junction capacitance | Cj | | 15 | | pF | 4.0 V, 1 MHz | 1 |
## CAD (KiCad official)
- Symbol: `EM520S`
- Footprint: `Diode_SMD:D_SMA`
- 3D model: SMA (KiCad packages3D, STEP)
- 3D model files: `em520s-etched.step` / `em520s-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `em520s.step` / `em520s.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [XCH(旭昌辉) datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603154616771231744) (2 pp, sha256 `7bc5621ba8b5c528`, retrieved 2026-10-17, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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/em520s-datasheet.pdf)