5mm round diffused leds with integral resistor truopto osr6lu5b64a 5v a red 150mcd 5mm led from truopto that features an integral current limiting resistor that makes this led more cost effective by cutting down the component count and simplifying circuit board design the leds are suitable for a wide range of applications such as status indication indicative and illuminative lighting etc truopto osr6lu5b64a 5v 5mm red led 5v 60 150mcd diffused