defining a degree of excellence  
					ISDNTRANSFORMER  
					0553-0043-DC  
					TM0016  
					* Primary Inductance is 3.5 mH  
					minimum.  
					Bel provides a new transformer  
					to be used with the Echelon Lontalk  
					applications.  
					* Isolation Voltage - 1500Vrms.  
					0.11MIN  
					2.77 MIN  
					M
					E
					C
					H
					A
					N
					I
					C
					A
					L
					S
					BOTTOM  
					VIEW  
					TOP  
					VIEW  
					inches  
					Dimensions in (mm)  
					Primary  
					Dimensiontolerance+/-0.01(0.25)  
					unless otherwise stated  
					SCHEMATIC  
					Secondary  
					ELECTRICALS  
					Primary  
					DCR  
					ohms (max)  
					Turns  
					Ratio  
					Inductance  
					Part  
					OCL  
					Number  
					(µH)Min  
					Pins (1-5)  
					3.5  
					Pins  
					(1-5):(2-6)  
					Pins (1-5)  
					Pins (2-6)  
					0.5  
					0.5  
					0553-0043-DC  
					1CT:1CT  
					Electricals @ 25o C.  
					Primary Inductance is measured at 20 mV @ 10 KHz..  
					Corporate Office  
					Bel Fuse Inc.  
					198 Van Vorst Street, Jersey City, NJ 07302-4496  
					Tel: 201-432-0463  
					Fax: 201-432-9542  
					E-Mail: BelFuse@belfuse.com  
					Internet: http://www.belfuse.com  
					Far East Office  
					Bel Fuse Ltd.  
					8F/8 Luk Hop Street  
					San Po Kong  
					Kowloon, Hong Kong  
					Tel: 852-2328-5515  
					Fax: 852-2352-3706  
					European Office  
					Bel Fuse Europe Ltd.  
					Preston Technology Management Centre  
					Marsh Lane, Preston PR1 8UD  
					Lancashire, U.K.  
					Tel: 44-1772-556601  
					Fax: 44-1772-888366  
					T116