NORDTEK DANMARK - EPU - U Interface Transformer - www.nordtek.dk

WebShop

EPU - U Interface Transformer

We offer a cost effective range of U Interface transformers for 2B1Q and 4B3T applications for equipment transmission between customer premises and exchanges. The transformers meet all requirements of recognized U Interface IC´s and ANSI standard T1.601 with a highly reliable pulse shape and return loss performance.

Features

compatibility with common transceiver lC´s ensures maximum loop length
complies with ANSI standard T1.601 when used with recommended chip
1,500V minimum isolation
all materials approved to UL94V-0
excellent quality at competitive price due to high volume production
manufactured in ISO-9001 approved facility
operating temperature: -40°C to +85°C

Electrical Specifications @ 25°C

Turns Ratio: Bold = IC Side Windings

EPU Series - U Interface Transformers

Part Number	L_O ±8% mH	Turns Ratio ±2% Line : IC	I_DC mA	DCR Line Ohms Nom.	DCR IC Ohms Nom.	L_L Line Side µH Max.	C_C pF Nom.	V_P (Vrms)	Schematic
EPU-100A EPU-100B	16.0 16.0	1.65:1 1.65:1	60 60	8.4 8.4	5.2 5.2	80 80	45 45	1,500 1,500	A B
EPU-110B	14.5	1.25:1	60	8.2	6.7	70	50	1,500	B
EPU-120A EPU-120B	7.9 7.9	1.32:1 1.32:1	60 60	5.3 5.3	4.1 4.1	60 60	45 45	1,500 1,500	A B
EPU-200A	6.15	1.6:1	60	3.6	2.3	40	40	1,500	A
EPU-300B EPU-300D	28.0 28.0	1.25:1 1.25:1	60 60	19.5 19.5	16.0 16.0	150 150	60 60	1,500 1,500	B D
EPU-400B EPU-400C	16.0 16.0	2:1 2:1	60 60	8.4 8.4	4.3 4.3	80 80	50 50	1,500 1,500	B C

IC - U Interface Cross Reference

Dimensions & Schematic
Dimensions & Schematic - Pins

IC Manufacturer	IC Part Nubmer	Talema Part Number
Infineon	PEB 8091 / 8191	EPU-100B
	PEB 24902 / 24911	EPU-100B
	PSB 21910 / 21911	EPU-100B
	PEB 2491 (2B1Q)	EPU-110B
	PEB 20901	EPU-120A
	PEB 2090 (4B3T)	EPU-120B
	PEB 2091 (2B1Q)	EPU-100A
Motorola	MC145572 (2B1Q)	EPU-300B
Motorola	MC145572 (2B1Q)	EPU-300D
Mietec	MTC20278 IL TQ (2B1Q)	EPU-400B
	MTC20279 IL TQ (4B3T)	EPU-200A
	MTC20276	EPU-400C

Top of page

Nordtek Denmark - current sensor, ei30, ee20, pcb transformer, vergossen, plug in transformer, topswitch, simple switcher Nordtek Com - transformer design, magnetics, impedance, transformer ac, toroids strommessung, netztrafo, power supply,voltage transformer, telecom transformer, pulse current sense transformer, drossel, current sense transformer, inductive, ferrite, kleintransformatoren inductor, inductance, 3c85, 3f3, power transformer, toroid, 50/60hz, line transformer, emi Transformers, Chokes, Toroids for Audio, Switchmode, Power Supply, Current Sense, electronic starter, flicker starter, fluorescent lamps, safety starter, lamp starter, glow starters, tubestarter, rapid, ts8, sunbed, halogen transformer

NORDTEK DANMARK - EPU - U Interface Transformer - www.nordtek.dk

MENU

SEARCH

PRODUCTS

EPU - U Interface Transformer

Features

EPU Series - U Interface Transformers