The 521-9240F is a discrete LED lamp designed as a through-hole circuit board indicator with a 5 mm lens configuration and single color output. It features a tinted diffused lens with a 50-degree viewing angle, GaAs/GaP LED type, and operates at a test current of 10 mA with typical forward voltage of 2.0 V and maximum of 2.5 V. The lamp delivers a typical luminous intensity of 6.3 mcd (minimum 2.2 mcd) and can handle continuous forward current up to 25 mA with pulse current capability of 60 mA, operating reliably across a temperature range of -55°C to +100°C. This indicator is ideal for panel-mounted applications in industrial control systems, instrumentation, and status indication where compact size and reliable LED performance are required.