component
1SMA4755_R1_10001
Public Made by Adomby adom
PANJIT International Zener Diodes, SMA. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdown1SMA4755_R1_10001
PANJIT International · Zener Diodes · SMA
1SMA4755_R1_10001 from PANJIT International, 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, marked by the color band on the package; zener diode 1SMA4755 with 43V nominal zener voltage (40.85V to 45.15V) at IZT 6 mA. |
| 2 | A | passive | Anode terminal of the 1W zener diode, operating junction and storage temperature range -55 to +150 °C. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | PANJIT International |
| 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 |
|---|---|---|---|---|---|---|---|
| Nominal Zener Voltage | VZ | 40.85 | 43 | 45.15 | V | @ IZT = 6 mA | 2 |
| Zener Test Current | IZT | 6 | mA | 2 | |||
| Maximum Zener Impedance | ZZT | 70 | Ω | @ IZT | 2 | ||
| Maximum Zener Impedance (knee) | ZZK | 1500 | Ω | @ IZK = 0.25 mA | 2 | ||
| Max Reverse Leakage Current | IR | 0.1 | uA | @ VR = 32.7 V | 2 | ||
| Zener Voltage Tolerance | -5 | 5 | % | standard tolerance on nominal zener voltage | 1 | ||
| Power Dissipation | PD | 1 | W | TA=50°C, mounted on 5mm2 land areas | 1 | ||
| Peak Forward Surge Current | IFSM | 10 | A | 8.3ms single half sine-wave superimposed on rated load | 1 | ||
| Operating Junction and Storage Temperature Range | TJ,TSTG | -55 | 150 | °C | 1 | ||
| Typical Thermal Resistance | RθJA | 150 | °C/W | Mounted on minimum recommended pad layout | 1 |
CAD (KiCad official)
- Symbol:
1SMA4755_R1_10001 - Footprint:
Diode_SMD:D_SMA - 3D model: SMA (KiCad packages3D, STEP)
- 3D model files:
1sma4755-r1-10001-etched.step/1sma4755-r1-10001-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);1sma4755-r1-10001.step/1sma4755-r1-10001.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: PANJIT International datasheet (8 pp, sha256
d500ab292ff58520, retrieved 2026-10-27, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-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).