DF3SURKD from Kingbright Corporation is a through-hole red LED bar indicator designed for clear visual status display on printed circuit boards. Positioned in the Optoelectronics > LEDs - Circuit Board Indicators, Arrays, Light Bars, Bar Graphs category, this single bar DIP device is well suited for control panels, instrumentation, industrial interfaces, telecom equipment, test fixtures, and legacy through-hole assemblies where simple, reliable indication is required. Its diffused, tinted rectangular lens helps support visible panel indication in applications where operators need quick at-a-glance feedback. For engineering teams, DF3SURKD offers value as a straightforward board-level indicator for alarm, status, level, and operating-state display functions. The supplied market signal shows shortage conditions, so procurement planning is important for production builds, maintenance stocking, and redesign risk management. Lifecycle status is currently unknown, which means designers should verify long-term availability with the manufacturer or authorized supply sources before locking it into new programs. RoHS compliance information is not available in the provided data, so engineers should confirm current environmental compliance documentation directly from official sources before release.