diff --git a/library/opto.dcm b/library/opto.dcm
index 5bc6362f..a183eec3 100644
--- a/library/opto.dcm
+++ b/library/opto.dcm
@@ -1179,13 +1179,13 @@ $ENDCMP
 $CMP TSL2550-SO8
 D Ambient Light Sensor with SMbus Interface, SO-8 interface
 K opto ambient light sensor
-F http://www.farnell.com/datasheets/48715.pdf
+F http://ams.com/eng/content/download/250130/975613/142977
 $ENDCMP
 #
 $CMP TSL2550-T4
-D Ambient Light Sensor with SMbus Interface, T-4 interface
+D Ambient Light Sensor with SMbus Interface, T-4 interface SMD
 K opto ambient light sensor
-F http://www.farnell.com/datasheets/48715.pdf
+F http://ams.com/eng/content/download/250130/975613/142977
 $ENDCMP
 #
 $CMP TSMP58000