PC537-1C-12S-X 30A / 47.2 mA / $1.28 A161CS12VDC.64 25A / 53.3 mA / $1.33 AZ983-1C-12D 60A / 150 mA/ $4.79 A51AE12VDC1.6 40/30A PC792A-1C-P-12S-X 40/30A / 133.3 mA / $2.36 these have the same pcb layout, kinda. you could make an intercompatible layout... A31CSP12VDC2R 70A / 150 mA / $4.40 A2H1CSP12VDC1.6 50/30A / 133.3 mA / $2.50 A31CSP12VDC1