component
3SMAJ5951B-TP
Public Made by Adomby adom
MCC(Micro Commercial Components) Zener Diodes, SMA(DO-214AC). 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
markdown3SMAJ5951B-TP
MCC(Micro Commercial Components) · Zener Diodes · SMA(DO-214AC)
3SMAJ5951B-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 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 | 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 |
|---|---|---|---|---|---|---|---|
| Steady state power dissipation | Pd | 3 | W | Lead temperature at TL=75°C | 1 | ||
| Operation and storage temperature | TJ, TSTG | -55 | 150 | °C | 1 | ||
| Maximum forward voltage | VF | 1.5 | V | IF=200mAdc (all types) | 2 | ||
| Zener voltage tolerance (B suffix) | VZ | -5 | 5 | % | B suffix; Note 1: type numbers indicate tolerance of +/- 5% | 2 | |
| Maximum dynamic impedance | ZZT | 380 | OHMS | @ IZT = 3.1 mA | 2 | ||
| Maximum reverse current | IR | 1 | µA | at VR = 91.2 V | 2 | ||
| Maximum DC zener current | IZM | 24 | mA | 2 | |||
| Zener voltage (nominal) | VZ | 120 | V | at IZT = 3.1 mA | 2 | ||
| Zener test current | IZT | 3.1 | mA | 2 | |||
| Reverse voltage (IR test point) | VR | 91.2 | V | 2 | |||
| Knee current | IZK | 0.25 | mA | 2 | |||
| Knee impedance | ZZK | 4500 | OHMS | 2 | |||
| Thermal resistance junction to lead | RthJL | 25 | /W | Junction to lead | 1 | ||
| Thermal resistance junction to ambient | RthJA | 135 | /W | Junction to ambient | 1 |
CAD (KiCad official)
- Symbol:
3SMAJ5951B-TP - Footprint:
Diode_SMD:D_SMA - 3D model: SMA(DO-214AC) (KiCad packages3D, STEP)
- 3D model files:
3smaj5951b-tp-etched.step/3smaj5951b-tp-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);3smaj5951b-tp.step/3smaj5951b-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
071d4387e2357d4f, 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).