component
SZA5.1A
Public Made by Adomby adom
LRC Zener Diodes, DO-214AC(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
markdownSZA5.1A
LRC · Zener Diodes · DO-214AC(SMA)
SZA5.1A from LRC, 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, marked by the color band on the DO-214AC molded case; SZA5.1A has Vz 5.1 V at Izt 49 mA. |
| 2 | A | passive | Anode of the zener diode; 1.0 W steady-state power dissipation at TL=75°C with maximum regulator current IZM 178 mA at Tamb=50°C. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | LRC |
| 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 | Vz | -5 | 5 | % | Ta=25℃ | 2 | |
| Maximum forward voltage | Vf | 1.2 | V | IF = 200mA | 2 | ||
| Maximum zener impedance | Zzt | 7 | Ohms | @ Izt = 49 mA | 2 | ||
| Maximum zener impedance at knee | Zzk | 550 | Ohms | @ Izk = 1.0 mA | 2 | ||
| Maximum regulator current | IZM | 178 | mA | Tamb = 50 °C | 2 | ||
| Nominal zener voltage | Vz | 5.1 | V | @ Izt = 49 mA | 2 | ||
| Zener test current | Izt | 49 | mA | 2 | |||
| Zener knee current | Izk | 1 | mA | 2 | |||
| Steady state power dissipation | PM(AV) | 1 | Watts | TL=75°C, mounted on copper leaf area of 1.57in2 | 1 | ||
| Operating and storage temperature range | TJ,TSTG | -50 | 150 | °C | 1 |
CAD (KiCad official)
- Symbol:
SZA5.1A - Footprint:
Diode_SMD:D_SMA - 3D model: DO-214AC(SMA) (KiCad packages3D, STEP)
- 3D model files:
sza5-1a-etched.step/sza5-1a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sza5-1a.step/sza5-1a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: LRC datasheet (5 pp, sha256
0db2176c3559c82e, 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).