You searched for "compact rectangular"
Malico
Heatsink, Clip, 42.5 x 42.5 x 12mm, Clip
Part: MBH42.5002-12P/2.6
Square clip-mounted heatsink for universal compact electronic component cooling.
BK Precision
BK Precision BK2709B Handheld Digital Multimeter, True RMS, 10A ac Max, 10A dc Max, 750V ac Max - UKAS Calibrated
Part: BK2709B
Portable handheld multimeter for professional electrical testing and troubleshooting.
Malico
Heatsink, Clip, 42.5 x 42.5mm, Clip
Part: CL-BU-42.5X42.5
Blue clip-mounted square heatsink for integrated circuit cooling.
Malico
Heatsink, Clip, 42.5 x 42.5mm, Clip
Part: CL-Y-42.5X42.5
Yellow clip-mounted square heatsink for small electronic components.