Schontek Insights

Component Shortage Alert: SOT23, SOT143B Supply Constrained

Supply chain update: SOT23, SOT143B may be experiencing shortage conditions. The USBLC6-2SC6 is one of the most designed-in ESD protection parts on USB and high speed data lines, which keeps it in steady demand. This page is a

August 12, 2026

## USBLC6-2SC6: In Stock, Lead Time, Pricing, and Alternates (2026 Sourcing Guide)

Schontek Electronics is monitoring the latest supply chain developments. According to reports from FindChips, the following components may be affected by shortage conditions:

### Affected Part Numbers

1. **SOT23**
2. **SOT143B**


### Supply Chain Context

The USBLC6-2SC6 is one of the most designed-in ESD protection parts on USB and high speed data lines, which keeps it in steady demand. This page is a sourcing and reference guide for the STMicroelectronics USBLC6-2SC6 ESD protection array. It includes a part description, current stock, price breaks by channel, factory lead times, how to separate authorized ST material from its many clone listings, and the closest alternates, each with a direct Findchips link. The following sourcing data is from

### What This Means for Your Supply Chain

If your production relies on any of these components, we recommend:

- **Place orders early** - Lead times are extending across the industry
- **Consider alternatives** - Our team can identify cross-reference parts
- **Buffer stock** - Maintain extra inventory for critical components
- **Stay informed** - Subscribe to our shortage alerts for updates

### How Schontek Can Help

As a US-based electronic components distributor, Schontek specializes in:

- Sourcing hard-to-find and shortage parts
- Providing verified alternatives and cross-references
- Fast delivery from our San Jose, CA warehouse
- Quality assurance with ISO 9001 certified processes

**[Request a Quote](/contact)** for any of the affected parts above, or browse our [inventory](/products) for available stock.


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*Source: [FindChips](https://blog.findchips.com/usblc6-2sc6-price-stock-lead-time-alternatives/)*

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