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1SMA4753A
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Shandong Jingdao Microelectronics Zener Diodes, SMA. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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1SMA4753A
Shandong Jingdao Microelectronics · Zener Diodes · SMA
1SMA4753A from Shandong Jingdao Microelectronics, 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 | Cathode | passive | Cathode terminal of the Zener diode; the datasheet gives no additional voltage or current limits for this pin. |
| 2 | Anode | passive | Anode terminal of the Zener diode; the datasheet gives no additional voltage or current limits for this pin. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Shandong Jingdao Microelectronics |
| Package | 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 |
|---|---|---|---|---|---|---|---|
| Zener voltage (VZT), 1SMA4753A 36 V type | VZ | 34.2 | 36 | 37.9 | V | VZT at IZT, tested with pulses (20 ms) | 2 |
| Total power dissipation | PD | 1 | W | Power Dissipation at Tc=75°C | 1 | ||
| Forward voltage | VF | 1.2 | V | IF = 200 mA | 1 | ||
| Junction temperature range | TJ | -55 | 150 | °C | 1 | ||
| Storage temperature range | TS | -55 | 150 | °C | 1 |
CAD (KiCad official)
- Symbol:
1SMA4753A - Footprint:
Diode_SMD:D_SMA - 3D model: SMA (KiCad packages3D, STEP)
- 3D model files:
1sma4753a-etched.step/1sma4753a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);1sma4753a.step/1sma4753a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Shandong Jingdao Microelectronics datasheet (3 pp, sha256
296be0e2be372196, retrieved 2026-10-21, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).
# 1SMA4753A
**Shandong Jingdao Microelectronics** · Zener Diodes · SMA
1SMA4753A from Shandong Jingdao Microelectronics, 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 | Cathode | passive | Cathode terminal of the Zener diode; the datasheet gives no additional voltage or current limits for this pin. |
| 2 | Anode | passive | Anode terminal of the Zener diode; the datasheet gives no additional voltage or current limits for this pin. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Shandong Jingdao Microelectronics |
| Package | 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 |
|---|---|---|---|---|---|---|---|
| Zener voltage (VZT), 1SMA4753A 36 V type | VZ | 34.2 | 36 | 37.9 | V | VZT at IZT, tested with pulses (20 ms) | 2 |
| Total power dissipation | PD | | | 1 | W | Power Dissipation at Tc=75°C | 1 |
| Forward voltage | VF | | | 1.2 | V | IF = 200 mA | 1 |
| Junction temperature range | TJ | -55 | | 150 | °C | | 1 |
| Storage temperature range | TS | -55 | | 150 | °C | | 1 |
## CAD (KiCad official)
- Symbol: `1SMA4753A`
- Footprint: `Diode_SMD:D_SMA`
- 3D model: SMA (KiCad packages3D, STEP)
- 3D model files: `1sma4753a-etched.step` / `1sma4753a-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `1sma4753a.step` / `1sma4753a.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Shandong Jingdao Microelectronics datasheet](docs/1sma4753a-datasheet.pdf) (3 pp, sha256 `296be0e2be372196`, 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/1sma4753a-datasheet.pdf)