Transistor Kia278

The KIA278 series (specifically KIA278RxxPI) is an active yet aging line of 4-terminal 2.0A output low-drop voltage regulators manufactured by KEC (Korea Electronics) Taydaelectronics. These components are widely used for power management in embedded systems, microcontrollers, and battery-powered devices Utsource.

Market Trends & Insights (2026)

• Growth Potential: The global voltage regulator market is projected to reach $15.96 billion in 2026, growing at a steady pace due to automotive and industrial electronics demand FortunebusinessinsightsIntelmarketresearch.
• Pricing: Current market prices range from $0.34 to $0.64 per unit depending on volume and specific voltage model (e.g., KIA278R05PI) LcscDatasheet4U.
• Lifecycle Warning: While still available in Asia through platforms like LCSC, these parts are often labeled as NRND (Not Recommended for New Designs). For modern applications, designers often transition to the KA78R series (ON Semi) or BAxxBC0WFP (ROHM) LcscTaydaelectronics.

Supplier Overview

I have identified several verified suppliers and authorized distributors:

• Specialized Distributors: Suppliers like Kenawang Electronics offer the full range, including 3.3V, 5V, 10V, and 12V variants in the TO-220IS-4 package Alibaba.
• Industrial/Auto Focus: Many suppliers listed focus on automotive power management, reflecting a key application segment for the series AlibabaAlibaba.

Detailed lists of verified suppliers, including their certifications and transaction history, are provided in the files below.