component
SP4337-01WTG
Public Made by Adomby adom
Littelfuse ESD And Surge Protection (TVS/ESD), 0201. 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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Contents
README
markdownSP4337-01WTG
Littelfuse · ESD And Surge Protection (TVS/ESD) · 0201
SP4337-01WTG from Littelfuse, 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 | 1 | passive | One terminal of the bidirectional TVS diode (0.18 pF typ, ±15 kV contact/air ESD per IEC 61000-4-2, 5 V reverse standoff); connect to the protected line or to ground, as the device is symmetric. |
| 2 | 2 | passive | Other terminal of the bidirectional TVS diode (0.18 pF typ, ±15 kV contact/air ESD per IEC 61000-4-2, 5 V reverse standoff); connect to the protected line or to ground, as the device is symmetric. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Littelfuse |
| 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 |
|---|---|---|---|---|---|---|---|
| Reverse Leakage Current | ILEAK | 1 | 100 | nA | VR=5V | 2 | |
| Holding Voltage | VHOLD | 2.3 | V | I/O to GND | 2 | ||
| Breakdown Voltage | VBR | 7.8 | V | IR=1mA | 2 | ||
| Reverse Standoff Voltage | VRWM | 5 | V | IR=1μA | 2 | ||
| Clamp Voltage | VC | 5 | 7 | V | IPP=7A, tp=8/20μs, I/O to GND | 2 | |
| ESD Withstand Voltage (IEC 61000-4-2 Contact Discharge) | VESD | -15 | 15 | kV | IEC 61000-4-2 (Contact Discharge) | 2 | |
| ESD Withstand Voltage (IEC 61000-4-2 Air Discharge) | VESD | -15 | 15 | kV | IEC 61000-4-2 (Air Discharge) | 2 | |
| Peak Current | IPP | 7 | A | tp=8/20μs | 2 | ||
| Operating Temperature | TOP | -40 | 125 | °C | 2 | ||
| Storage Temperature | TSTOR | -55 | 150 | °C | 2 | ||
| Dynamic Resistance | RDYN | 0.23 | Ω | TLP, tP=100ns, I/O to GND | 2 | ||
| Diode Capacitance | CIO-GND | 0.18 | pF | Reverse Bias=0V, f= 1 MHz | 2 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | Copper | tin | Lead Plating Tin plating Lead Material Copper bump | 4 |
CAD (KiCad official)
- Symbol:
SP4337-01WTG - Footprint:
Diode_SMD:D_0201_0603Metric - 3D model: 0201, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.3 mm nominal 01005 height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
- 3D model files:
sp4337-01wtg-etched.step/sp4337-01wtg-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sp4337-01wtg.step/sp4337-01wtg.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Littelfuse datasheet (5 pp, sha256
d5cef2521642fac0, retrieved 2026-10-18, tier: lcsc) - 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).