component
1N4738AP-AP
Public Made by Adomby adom
MCC(Micro Commercial Components) Zener Diodes, DO-41. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, 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
markdown1N4738AP-AP
MCC(Micro Commercial Components) · Zener Diodes · DO-41
1N4738AP-AP from MCC(Micro Commercial Components), in a DO-41. 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 | MCC(Micro Commercial Components) |
| Package | DO-41 |
| 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 tolerance (A suffix, 5%) | VZ | -5 | 5 | % | JEDEC type with A suffix has 5% tolerance | 2 | |
| Maximum Zener impedance | ZZT | 4.5 | Ω | @ IZT = 31.0 mA | 2 | ||
| Maximum Zener impedance (knee) | ZZK | 700 | Ω | @ IZK = 0.5 mA | 2 | ||
| Maximum reverse leakage current | IR | 10 | µA | VR = 6.0 V | 2 | ||
| Maximum Zener current | IZM | 110 | mA | 2 | |||
| Maximum surge current | IRM | 550 | mA | 2 | |||
| Power dissipation | PD | 1 | W | TA≤50°C | 1 | ||
| Maximum forward voltage | VF | 1.2 | V | IF=200mA | 1 | ||
| Operating junction temperature range | TJ | -65 | 150 | °C | 1 | ||
| Storage temperature range | TSTG | -65 | 150 | °C | 1 | ||
| Thermal resistance, junction to ambient | 100 | °C/W | Junction to Ambient | 1 | |||
| Nominal Zener voltage | VZ | 8.2 | V | @ IZT = 31.0 mA | 2 | ||
| Zener test current | IZT | 31 | mA | 2 | |||
| Knee test current | IZK | 0.5 | mA | 2 |
CAD (KiCad official)
- Symbol:
1N4738AP-AP - Footprint:
Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal - 3D model: DO-41 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: MCC(Micro Commercial Components) datasheet (4 pp, sha256
4c2301fd8174a36f, 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).