Best B688 Transistor Equivalent Suppliers Guide

I have analyzed the B688 (2SB688) transistor market, identifying key suppliers and providing a detailed technical and market outlook for 2026.

Core Findings

* Supplier Landscape: I identified 30+ verified suppliers specializing in B688 transistors and their equivalents. Many are based in Guangdong, China, offering both original components and cost-effective alternatives like the KTB688 Alibaba El-Component.

* Technical Equivalents: The 2SB688 is a PNP power transistor (-120V, -8A, 80W) commonly paired with the 2SD718 NPN Alltransistors Octopart. Standard equivalents include the 2SB778, 2SA1265, and NTE2329 El-Component Digikey. For high-performance upgrades, the 2SA1943 or MJW1302A are robust options frequently used in high-fidelity audio El-Component.

* Market Trends (2026):

* Market Value: The global power transistor market is projected to reach $16.07 billion in 2026, with the Asia-Pacific region holding over 52% of the share Intelmarketresearch Fortunebusinessinsights.

* Pricing: Average selling prices (ASPs) are trending upward, with a 35–40% premium for high-frequency components due to rising R&D and manufacturing complexities Intelmarketresearch.

* Drivers: Demand is heavily driven by 5G infrastructure, electric vehicles (EVs), and industrial automation, with a shift toward high-efficiency wide-bandgap materials like GaN and SiC Intelmarketresearch.

Please check the attached file for the full list of suppliers, including company profiles, product specifications, and ranking scores.