component
RLSD32A121LC
Public Made by Adomby adom
RUILON Shenzhen Ruilongyuan Elec ESD And Surge Protection (TVS/ESD), SOD-323. 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
markdownRLSD32A121LC
RUILON Shenzhen Ruilongyuan Elec · ESD And Surge Protection (TVS/ESD) · SOD-323
RLSD32A121LC from RUILON Shenzhen Ruilongyuan Elec, in a SOD-323. 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 | 1 | passive | Bidirectional TVS/ESD terminal (interchangeable with pin 2) for RLSD32A121LC with 12.0 V reverse stand-off, 13.3 V minimum breakdown at 1 mA, 19.0 V clamp at 1 A and 30 V at 8 A (8/20 μs). |
| 2 | 2 | passive | Bidirectional TVS/ESD terminal (interchangeable with pin 1) protecting one line, with 300 W peak pulse power (8/20 μs), ±8 kV contact and ±15 kV air ESD, and 1 pF typical capacitance. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | RUILON Shenzhen Ruilongyuan Elec |
| Package | SOD-323 |
| Category | Circuit Protection |
| 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 |
|---|---|---|---|---|---|---|---|
| Reverse Stand-Off Voltage | VRWM | 12 | V | 1 | |||
| Minimum Breakdown Voltage | VBR | 13.3 | V | @1mA | 1 | ||
| Clamping Voltage | VC | 19 | V | @1A | 1 | ||
| Peak Pulse Clamping Voltage | VC | 30 | V | @IPP, 8/20μs, IPP = 8 A | 1 | ||
| Reverse Leakage | IR | 1 | μA | @VRWM | 1 | ||
| Peak Pulse Power | PPP | 300 | Watts | tp = 8/20μs | 1 | ||
| ESD Voltage (Contact) | VESD | -8 | 8 | kV | 1 | ||
| ESD Voltage (Air) | VESD | -15 | 15 | kV | 1 | ||
| Operating Temperature | TOPT | -55 | 150 | °C | 1 | ||
| Storage Temperature | TSTG | -55 | 150 | °C | 1 | ||
| Typical Capacitance | CJ | 1 | pF | DC=0V, @ 1 MHz | 1 | ||
| Peak Pulse Current | IPP | 8 | A | 8/20μs | 1 |
CAD (KiCad official)
- Symbol:
RLSD32A121LC - Footprint:
Diode_SMD:D_SOD-323 - 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files:
rlsd32a121lc-etched.step/rlsd32a121lc-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);rlsd32a121lc.step/rlsd32a121lc.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: RUILON Shenzhen Ruilongyuan Elec datasheet (3 pp, sha256
609b086880e2de33, 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).