component
SMAJ4740A-TP
Public Made by Adomby adom
MCC(Micro Commercial Components) Zener Diodes, 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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SMAJ4740A-TP
MCC(Micro Commercial Components) · Zener Diodes · DO-214AC(SMA)
SMAJ4740A-TP from MCC(Micro Commercial Components), 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 | MCC(Micro Commercial Components) |
| 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 |
|---|---|---|---|---|---|---|---|
| Zener voltage tolerance (A suffix) | VZ | -5 | 5 | % | 1 | ||
| Power dissipation | PD | 1 | W | TA≤50°C | 1 | ||
| Maximum forward voltage | VF | 1.2 | V | IF=100mA | 1 | ||
| Maximum dynamic impedance | ZZT | 7 | Ω | @ IZT = 25 mA | 2 | ||
| Maximum knee impedance | ZZK | 700 | Ω | @ IZK = 0.25 mA | 2 | ||
| Maximum reverse current | IR | 10 | µA | @ VR = 7.6 V | 2 | ||
| Maximum DC zener current | IZM | 91 | mA | TA=50°C | 2 | ||
| 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 | |||
| Thermal resistance junction to lead | 75 | °C/W | Junction to lead | 1 | |||
| Nominal zener voltage | VZ | 10 | V | @ IZT = 25 mA | 2 |
CAD (KiCad official)
- Symbol:
SMAJ4740A-TP - Footprint:
Diode_SMD:D_SMA - 3D model: DO-214AC(SMA) (KiCad packages3D, STEP)
- 3D model files:
smaj4740a-tp-etched.step/smaj4740a-tp-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smaj4740a-tp.step/smaj4740a-tp.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: MCC(Micro Commercial Components) datasheet (4 pp, sha256
112eff7a7d3efcaf, 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).
# SMAJ4740A-TP
**MCC(Micro Commercial Components)** · Zener Diodes · DO-214AC(SMA)
SMAJ4740A-TP from MCC(Micro Commercial Components), 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 | MCC(Micro Commercial Components) |
| 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 |
|---|---|---|---|---|---|---|---|
| Zener voltage tolerance (A suffix) | VZ | -5 | | 5 | % | | 1 |
| Power dissipation | PD | | | 1 | W | TA≤50°C | 1 |
| Maximum forward voltage | VF | | | 1.2 | V | IF=100mA | 1 |
| Maximum dynamic impedance | ZZT | | | 7 | Ω | @ IZT = 25 mA | 2 |
| Maximum knee impedance | ZZK | | | 700 | Ω | @ IZK = 0.25 mA | 2 |
| Maximum reverse current | IR | | | 10 | µA | @ VR = 7.6 V | 2 |
| Maximum DC zener current | IZM | | | 91 | mA | TA=50°C | 2 |
| 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 |
| Thermal resistance junction to lead | | | 75 | | °C/W | Junction to lead | 1 |
| Nominal zener voltage | VZ | | 10 | | V | @ IZT = 25 mA | 2 |
## CAD (KiCad official)
- Symbol: `SMAJ4740A-TP`
- Footprint: `Diode_SMD:D_SMA`
- 3D model: DO-214AC(SMA) (KiCad packages3D, STEP)
- 3D model files: `smaj4740a-tp-etched.step` / `smaj4740a-tp-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `smaj4740a-tp.step` / `smaj4740a-tp.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [MCC(Micro Commercial Components) datasheet](docs/smaj4740a-tp-datasheet.pdf) (4 pp, sha256 `112eff7a7d3efcaf`, 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/smaj4740a-tp-datasheet.pdf)