# SMF5.0A (Component) ## Description 9.2VC Clamp 21.8A Ipp TVS DIODE SOD-123FL The SMF5.0A is a unidirectional Transient Voltage Suppressor (TVS) diode designed to protect sensitive electronic circuits from electrostatic discharge (ESD), lightning surges, and other transient overvoltage events. It is commonly used on 5V power rails, USB VBUS lines, DC inputs, and general-purpose power protection applications. The device comes in a compact surface-mount SOD-123FL/SMF package suitable for space-constrained PCB designs. Key Features 5V reverse standoff voltage (VRWM) 200W peak pulse power dissipation (10/1000µs waveform) Fast response time for transient suppression Low clamping voltage (~9.2V max) Unidirectional TVS protection Excellent ESD and surge protection capability Compact SOD-123FL / SMF surface-mount package Low leakage current Operating temperature up to +150°C RoHS compliant and halogen-free variants available ## Component Details - **Owner:** lcsc - **Created:** 10/10/2024 - **Last Updated:** 5/19/2026 - **Visibility:** Public - **Package or Case Code:** SOD-123FL_L2.8-W1.8-LS3.6-RD - **JLCPCB Part Class:** Extended Part - **Datasheet URL:** https://www.lcsc.com/datasheet/C2990427.pdf?spm=wm.sxq.inf.ggs&lcsc_vid=T1kIXgFeT1NaU1RXQFBbUlUHT1cKU1NXFVBeX1VSTlAxVlNRTlBbUVFXRldaXzsOAxUeFF5JWBYZEEoKFBINSQcJGk4dAgUUFAk%3D - **LCSC Part Number:** C2990427 - **Diode Type:** Schottky Diode - **Part Type:** TVS - **Max Reverse Voltage:** 5V - **Manufacturer Name:** Liown(里阳半导体) - **Manufacturer Part Number:** SMF5.0A - **Forward Voltage:** 0.45V to 0.55V (at 1A)V - **Used in:** 680 projects - **Forks:** 1 ## Distributor Pricing (qty 1) *Pricing shown for quantity 1. For price breaks and other quantities, open in Flux.* | Distributor | Unit Price (qty 1) | Stock | |------------|--------------------|-------| | [Arrow](https://www.arrow.com/en/products/smf5-0a_10/littelfuse.html?utm_currency=USD&region=europe) | $0.099 | 13 | | [Digi-Key](https://www.digikey.com/en/products/detail/littelfuse-inc/SMF5-0A/3429605) | N/A | N/A | | [HQonline](https://www.hqonline.com/product-detail/esd-suppressor---tvs-diodes-lge-smf5-0a-2500340516) | $0.01642 | 0 | | [LCSC](https://www.lcsc.com/product-detail/esd-and-surge-protection-tvs-esd_meritek-smf5-0a_C3719598.html) | $0.0779 | 0 | | [Mouser](https://www.mouser.com/ProductDetail/Taiwan-Semiconductor/SMF5.0A?qs=1mbolxNpo8eR5rZB%252BCLtCw%3D%3D) | $0.25 | 0 | | [TME](https://www.tme.com/us/en-us/katalog/?queryPhrase=SMF5.0A-DIO) | N/A | N/A | | [Verical](https://www.verical.com/pd/littelfuse-tvs-SMF5-0A-829095?utm_currency=USD) | N/A | N/A | - **Part Type:** Circuit Protection Devices - **Manufacturer:** Liown - **MPN:** SMF5.0A - **Mount Type:** Surface Mount - **Package / Case Code:** SO - **Pin Count:** 2 - **Compliance:** Rohs, Halogen Free ## Pins | Pin | Name | Type | |-----|------|------| | 1 | 1 | | | 2 | 2 | | --- *Generated from [https://www.flux.ai/lcsc/smf5p0a~bz6b](https://www.flux.ai/lcsc/smf5p0a~bz6b)*