component
SMAJ4744A-TP
Public Made by Adomby adom
MCC(Micro Commercial Components) Zener Diodes, SMA(DO-214AC). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
README
markdownSMAJ4744A-TP
MCC(Micro Commercial Components) · Zener Diodes · SMA(DO-214AC)
SMAJ4744A-TP from MCC(Micro Commercial Components), in a SMA(DO-214AC). 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 end identified by the cathode mark on the SMA (DO-214AC) body; for SMAJ4744A the Zener voltage is 15V at IZT = 17mA. |
| 2 | A | passive | Anode, the terminal opposite the cathode mark; maximum forward voltage is 1.2V at IF = 100mA and power dissipation is 1.0W at TA ≤ 50°C. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | MCC(Micro Commercial Components) |
| Package | SMA(DO-214AC) |
| 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 | VZ | -5 | 5 | % | 1 | ||
| Zener Voltage | VZ | 15 | V | @ IZT | 2 | ||
| Test Current | IZT | 17 | mA | 2 | |||
| Maximum Dynamic Impedance | ZZT | 14 | Ω | @ IZT | 2 | ||
| Knee Current | IZK | 0.25 | mA | 2 | |||
| Knee Impedance | ZZK | 700 | Ω | @ IZK | 2 | ||
| Maximum Reverse Current | IR | 5 | µA | @ VR | 2 | ||
| Reverse Voltage | VR | 11.4 | V | 2 | |||
| Maximum Forward Voltage | VF | 1.2 | V | IF=100mA | 1 | ||
| Power Dissipation | PD | 1 | W | TA≤50°C | 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 | |||
| Thermal Resistance Junction to Lead | 75 | °C/W | Junction to Lead | 1 |
CAD (KiCad official)
- Symbol:
SMAJ4744A-TP - Footprint:
Diode_SMD:D_SMA - 3D model: SMA(DO-214AC) (KiCad packages3D, STEP)
- 3D model files:
smaj4744a-tp-etched.step/smaj4744a-tp-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smaj4744a-tp.step/smaj4744a-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
e9acf320d7774b6a, retrieved 2026-10-22, 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).