MIL-STD 1553 SINGLE & DUAL DATA BUS TRANSFORMERS 3Kohms minimum impedance at -55C Can be tested in accordance with BS9000 Available in both leaded and surface mount packages Extended range giving wide choice of turns ratios Upper operating temperature limit to +125C The Pascall P1200 Series of Data Bus Transformers is designed to satisfy the requirements of MIL-STD-1553A/B (DEF. STAN. 00-18 (Part 2) /1) and may be used in either the bus coupling or isolation configurations. The Transformers are compatible with currently available transceivers and integrated terminals, meeting all the electrical requirements of Manchester II serial bi-phase data transmission including MACAIR specifications. They are also designed to meet the requirements of MIL-T-21038 Grades 5 & 7 / Class S / Life X. 10/07 MIL-STD 1553 SINGLE & DUAL DATA BUS TRANSFORMERS ELECTRONICS LIMITED SINGLE MIL-STD 1553 TRANSFORMERS Part No. 1,2 : 3,4 Centre Tap Housing Minimum impedance between pins 1-3 1-00152 1.41 : 1 N D 3,000 1-00195 1.41 : 1 N B 3,000 Housing Minimum impedance between pins 1-3 MIL-STD 1553 TRANSFORMERS Part No. 1,3 : 5,7 1,3 : 4,8 Centre Tap 1-00130 1.41 : 1 1.0 : 1.0 Y A 3,000 1-00171 1.41 : 1 Y B 3,000 1.0 : 1 Y C 3,000 1-00273 1-00769 1.66 : 1 1.2 : 1 Y A 3,000 1-00168 2.0 : 1 1.4 : 1 Y A 3,000 2.0 : 1 Y A 3,000 0.46 : 1 Y A 3,000 0.4 : 1 Y C 3,000 1-02822 0.66 : 1 1-01028 1-03842 1-04405 1.41 : 1 1.0 : 1 Y E 3,000 1-04817 2.0 : 1 1.41 : 1 Y E 3,000 1-07860 0.56 : 1 Y E 3,000 1-06198 0.56 : 1 Y E 3,000 Other models & custom versions available. DUAL MIL-STD 1553 TRANSFORMERS Turns Ratio Part No. 1-3 : 15-14 1-3 : 16-13 5-7 : 11-10 5-7 : 12-9 Centre Tap Housing 1-10956 1 : 0.707 1:1 1 : 0.707 1.1 Y F 3,000 (1-3, 5-7) 1-10955 2:1 1.41 : 1 2:1 1.41 : 1 Y F 3,000 (1-3, 5-7) 1-11269 1.66 : 1 1.25 : 1 1.66 : 1 1.25 : 1 Y F 3,000 (1-3, 5-7) 1-11268 1 : 1.5 1 : 2.12 1 :15 1 : 2.12 Y F 3,000 (16-13, 12-9) 1-11270 1 : 1.75 1 : 25 1 : 1.75 1 : 2.5 Y F 3,000 (16-13, 12-9) 1 : 1.79 1 : 25 1 : 1.79 1 : 2.5 Y F 3,000 (16-13, 12-9) 1-10954 Impedance Ohms minimum OPERATING CONDITIONS Parameter Symbol Min Max Unit Frequency Range f 75 1000 KHz Operating Temperature Tamb -55 +125 C Storage Temperature Tst -55 +150 C ELECTRICAL CHARACTERISTICS Parameter Open Circuit Primary Impedance Test Conditions Overall Conditions Tamb = +25 C f = 75 kHz Min Typ 3 8 10 Droop 45 Common Mode Rejection Ratio Inter Winding Resistance Test Voltage = 500 V Unit Kohms 15 % dB 50 0.5 Overshoot and Ringing Max 1.0 Volts Mohms 50 Turns Ratio Tolerance 3 % Peak Working Voltage 50 Volts *Isolation Resistor Tolerance 2 % *Isolation Resistor Rating 1.0 Watts Tamb = 70 C * Where fitted MIL-STD 1553 SINGLE & DUAL DATA BUS TRANSFORMERS SINGLE E DUAL F