component
ESDARF02-1BU2CK
Public Made by Adomby adom
STMicroelectronics ESD And Surge Protection (TVS/ESD), 0201. 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
markdownESDARF02-1BU2CK
STMicroelectronics · ESD And Surge Protection (TVS/ESD) · 0201
ESDARF02-1BU2CK from STMicroelectronics, in a 0201. 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 | Pin 1 | passive | Pin 1 is the bar-marked terminal of the bidirectional single-line TVS and is rated for a reverse stand-off voltage VRM of 3.6 V with 5 V minimum breakdown voltage VBR (IR = 1 mA), with the datasheet giving no separate function for this pin. |
| 2 | 2 | passive | Pin 2 is the other terminal of the bidirectional single-line TVS, and the datasheet gives no separate function or limit for it beyond the device ratings (IEC 61000-4-2 contact discharge 8 kV, air discharge 20 kV peak pulse voltage). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | 0201 |
| 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 |
|---|---|---|---|---|---|---|---|
| Breakdown voltage | VBR | 5 | 6.6 | V | Tamb = 25 °C; IR = 1 mA | 2 | |
| Leakage current | IRM | 5 | 100 | nA | Tamb = 25 °C; VRM = 3.6 V | 2 | |
| Clamping voltage | VCL | 10 | 12 | V | Tamb = 25 °C; IPP = 1 A, 8/20 µA | 2 | |
| Dynamic resistance | Rd | 1.3 | Ω | Tamb = 25 °C; dynamic resistance, pulse duration 100 ns | 2 | ||
| Line capacitance | Cline | 0.2 | 0.3 | pF | Tamb = 25 °C; F = 200 MHz - 3000 MHz, VR = 0 V | 2 | |
| Bandwidth (-3 dB) | fc | 30 | GHz | Tamb = 25 °C; -3 dB | 2 | ||
| Peak pulse voltage, IEC 61000-4-2 contact discharge | VPP | 8 | kV | Tamb = 25 °C; IEC 61000-4-2 contact discharge | 2 | ||
| Peak pulse voltage, IEC 61000-4-2 air discharge | VPP | 20 | kV | Tamb = 25 °C; IEC 61000-4-2 air discharge | 2 | ||
| Peak pulse power (8/20 µs) | PPP | 20 | W | Tamb = 25 °C; 8/20 µs | 2 | ||
| Peak pulse current (8/20 µs) | IPP | 1.5 | A | Tamb = 25 °C; 8/20 µs | 2 | ||
| Operating junction temperature range | Tj | -40 | 150 | °C | Tamb = 25 °C | 2 | |
| Storage temperature range | Tstg | -65 | 150 | °C | Tamb = 25 °C | 2 | |
| Maximum lead temperature for soldering | TL | 260 | °C | Tamb = 25 °C; during 10 s | 2 |
CAD (KiCad official)
- Symbol:
ESDARF02-1BU2CK - Footprint:
Diode_SMD:D_0201_0603Metric - 3D model: 0201 (KiCad packages3D, STEP)
- 3D model files:
esdarf02-1bu2ck-etched.step/esdarf02-1bu2ck-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);esdarf02-1bu2ck.step/esdarf02-1bu2ck.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (9 pp, sha256
4dd7867a18d24535, retrieved 2026-10-28, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-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).