Pomona Electronics Pomona 1581-0 B-Jack, Tin Pl (Black) (Pack of 10) Share 0 See on Amazon Banana Jacks mount into panels ranging in thickness from .063″ (1.6mm) to .375″ (9.5mm) Operating Temperature: +115C (+239F) Max Handheld voltage should not exceed 30 Vrms/60 Vdc Country of origin: United States