STS-1 - Catalogue - nordtek.se

IC - T3/DS3/E3/STS-1 - Catalogue

These miniature transformers are suitable for 75 ohm bandwidth applications requiring a very fast rise times. We offer a wide range of transmit and receive transformers for 13/D83 applications using bit rates of 4.736 Mbps. These transformers can also be used with E3 interfaces at 34.368 Mbps and STS-1 applications at 51.84 Mbps. A listing of IC´s with recommended Talema transformers is listed on the following cross-reference chart.
Quality and consistency is guaranteed through 100% testing of the specified parameters for Primary Inductance, Leakage Inductance, Turns Ratio, DC resistance and Interwinding Capacitance. This ensures that the Return Loss and Pulse Wave shape requirements of CCITT G.703 and ATT T.A.34 can be met. Additionally all parts are 100% tested for 1,500V minimum isolation.
		Temperature Performance Products are offered for both standard temperature (Commercial 0° to +70°C) and extended temperature (Industrial -40° to +85°C) applications. Required minimum inductance levels are maintained at the lower temperature limits.

IC Manufacturer	IC Part Number	Talema Transformer Part Number
		Standard Temperature		Extended Temperature
		Transmit	Receive	Transmit	Receive
Conexant (Rockwell)	CN8331, CN8332, CN8333	DJE-40-6A	DJE-40-6A	DJE-100-6C	DJE-100-6C
Infineon (Siemens)	PEB3452	-	-	DJE-40-6E	DJE-1+00-6A/6C
Lucent	T7296	DJE-40-6A	-	DJE-100-6C	-
Exar	XRT7295, XRT7295E	-	DJE-40-6A	-	DJE-100-6C
	XRT7296, XRT7298	DJE-40-6A	-	DJE-100-6C	-
	XRT73L00, XRT73L03, XRT73L04	DJE-40-6A	DJE-40-6A	DJE-100-6C	DJE-100-6C
	XRT7300, XRT7302	DJE-40-6A	DJE-40-6A	DJE-100-6C	DJE-100-6C
TDK	78P2241	DJE-19-6B	DJE-40-6A	DJE-40-6D	DJE-100-6C
	78P2242, 78P2243, 78P2244	DJE-19-6B	DJE-40-6A	DJE-40-6D	DJE-100-6C
	78P7200	DJE-19-6B	DJE-40-6A	DJE-40-6D	DJE-100-6C
	78P7200L	DJE-19-6B	DJE-40-6A	DJE-40-6D	DJE-40-6D
	78P2361, 78P2362	DJE-19-6B	DJE-40-6A	DJE-40-6D	DJE-100-6C
Transwitch	MRT TXC-02050, E3	DJE-19-6B	DJE-40-6A	DJE-40-6D	DJE-100-6C
	ART TXC-02020	DJE-40-6A	DJE-40-6A	DJE-100-6C	DJE-100-6C
	ARTE TXC-02021	DJE-40-6A	DJE-40-6A	DJE-100-6C	DJE-100-6C
	DART TXC-2030, DS3	DJE-40-6A	DJE-40-6A	DJE-100-6C	DJE-100-6C
	DART TXC-2030, E3	DJE-19-6B	DJE-40-6A	DJE-40-6D	DJE-100-6C
	DS3LIM-SN TXC-20153G	DJE-40-6A	DJE-40-6A	DJE-100-6C	DJE-100-6C
	E3LIM TXC-20163	DJE-19-6B	DJE-40-6A	DJE-40-6D	DJE-100-6C

Top of page

These miniature transformers are suitable for 75 ohm bandwidth applications requiring a very fast rise times.

low cost SMD for pick and place compatibility while providing consistent and reliable co-planarity
low leakage inductance
excellent quality at extremely competitive price due to high volume production
manufactured in ISO-9001 approved facility

Minimum isolation voltage: 1,500 Vrms
Operating Temperature Range: -40° to +85°C

Test Conditions
Inductance measured @ 1MHz, 10mV
Interwinding Capacitance and Leakage Inductance @ 100kHz, 10mV

Operating Temperature Range 0°C to +70°C
Part Number	OCL Primary (µH Min.)	OCL Primary @-40°C (µH Min.)	Turns Ratio Pri/Sec ±2%	L_L Pri/Sec (µH Max.)	C_C Pri/Sec (pF Max.)	Bandwidth 75 Ohms		Isolation Voltage (Vrms Min.)	Primary Pins	Schematic
						Freq. (MHz)
						Low	High
DJE-19-6B DJE-40-6A	19 40	- -	1:2CT 1:1	0.06 0.10	10 10	0.250 0.200	500 340	1,500 1,500	1-3 1-3	B A
Extended operating temperature range -40° to +85°C
DJE-40-6B DJE-40-6D DJE-40-6E	40 40 40	19 19 19	1:2CT 1:2CT 1CT:1CT	0.11 0.11 0.10	12 12 10	0.250 0.250 0.250	500 500 340	1,500 1,500 1,500	1-3 4-6 1-3	B D E
DJE-100-6A DJE-100-6C	100 100	40 40	1:1 1:1	0.11 0.11	10 10	0.200 0.200	340 340	1,500 1,500	1-3 4-6	A C

Top of page