The 5 volt and 12 volt series lamps contain an integral current limiting resistor in series with the LED. This allows the lamp to be driven from a 5 volt/12 volt source without an external current limiter. The red LEDs are made from GaAsP on a GaAs substrate. The High Efficiency Red and Yellow devices use GaAsP on a GaP substrate. The green devices use GaP on a GaP substrate. The diffused lamps provide a wide off-axis viewing angle. The T-1¾ lamps are provided with sturdy leads suitable for wire wrap applications. The T-1¾ lamps may be front panel mounted by using the HLMP-0103 clip and ring.
Integral current limiting resistor
Requires no external current Limiter with 5 volt/12 volt supply