UNSPSC 32111613: Bipolar or radio frequency bipolar transistor

UNSPSC 32111613 Bipolar or radio frequency bipolar transistor (Commodity) describes specialized electronic components that state and local governments procure primarily as replacement parts for critical infrastructure protection and control systems. Recent solicitations show state and local buyers acquiring these components indirectly through specifications for larger integrated systems — motor control centers, SCADA relay platforms, pump station control panels, and electrical distribution equipment — rather than as discrete transistors. The Kissimmee Utility Authority's August 2026 sole-source procurement for SEL 451 and SEL 751 Protection, Automation, and Bay Control System relays illustrates the typical buying pattern: utilities specify complete relay assemblies that incorporate bipolar transistor technology for feeder protection, fault locating, and automated reclosing functions, with full compatibility to existing SCADA infrastructure and standardized relay settings as a non-negotiable requirement. Issuing bodies include utility authorities (Kissimmee Utility Authority), county water and wastewater departments (Hillsborough County, Bay County in Florida), school districts (Northside Independent School District in Texas), and transit authorities (Trinity Metro serving Tarrant County, Texas). These jurisdictions rarely issue standalone RFQs for individual transistor units; instead, they solicit complete assemblies or panels where transistor technology is embedded in larger electrical control systems.

Geographic concentration in recent activity centers on Florida (Kissimmee Utility Authority, Hillsborough County, Bay County) and Texas (Northside Independent School District in San Antonio, Trinity Metro in Tarrant County, City of Fort Worth). The code shows minimal direct procurement activity — state and local buyers do not typically break out bipolar transistors as line items in RFP or ITB notices. The most recent representative opportunity under this code is the Kissimmee Utility Authority's solicitation SS26054SH, posted September 14, 2026, with quotations due August 24, 2026, for SEL relay assemblies incorporating protection and automation functions; this was a sole-source RFQ justified by exclusive distributor authorization and technical interoperability requirements with KUA's existing fleet. Hillsborough County's ITB2600277, posted May 27, 2026, with bids due June 18, 2026 at $519,787.19 over two years, sought Schneider brand electrical components on an as-needed basis, with components specified for use in SCADA control panels where transistor-level specifications are embedded in larger electrical assemblies. Business development professionals should note that pursuit under this code typically requires authorization as a manufacturer's exclusive or authorized distributor and demonstrated expertise in integrating transistor-based components into critical infrastructure protection systems; standalone transistor suppliers will find limited direct procurement opportunities at the state and local level.