defining a degree of excellence  
					T1/CEPT/ISDN-PRITRANSFORMER  
					0553-0013-14  
					TM0018  
					* Primary Inductance is 1.5 mH  
					Bel provides a new transformer  
					to be used in multiple T1/CEPT/ISDN-Pri  
					applications.  
					minimum.  
					* Isolation Voltage - 1500Vrms.  
					0.10(2.54)  
					0.35(8.89)  
					M
					0.13(3.30)  
					Min  
					2.77 MIN  
					0.11MIN  
					Max  
					E
					C
					H
					A
					N
					I
					0.50(12.70)  
					Max  
					0.40(10.16)  
					C
					A
					L
					S
					BOTTOM  
					VIEW  
					0.25(6.35)  
					Max  
					TOP  
					VIEW  
					0.02" pin  
					diameter typical  
					1:1.266CT  
					6
					5
					3
					1
					Secondary  
					Primary  
					SCHEMATIC  
					Dimensionsininches(mm)  
					Dimensiontolerance+/-0.01(0.25)  
					unless otherwise stated  
					2
					ELECTRICALS @ 25O C.  
					Turns  
					Ratio  
					+/- 5%  
					Leakage  
					Inductance  
					LL  
					Primary  
					Inductance  
					OCL  
					DCR  
					(ohms) Max  
					Coupling  
					Capacitance  
					(pF) Max  
					Part  
					Number  
					Pins  
					(2-6):(1-5)  
					(µH)Max  
					(mH)Min  
					Pins (2-6)  
					Pins (1-5)  
					0.80  
					0553-0013-14  
					1:1.266CT  
					18  
					0.80  
					1.50  
					0.92  
					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  
					T118