021802.5MXPFUSE 250V IEC SLO-BLO 5X20 2.5A|LITTELFUSE INC|Lead free|RoHS Compliant BK/S506-2.5-R 0034.3121 5ST 2.5-R 021802.5HXP 021802.5MXPFUSE 250V IEC SLO-BLO 5X20 2.5A|LITTELFUSE INC|Lead free|RoHS Compliant BK/S506-2.5-R 0034.3121 5ST 2.5-R 021802.5HXP