Value Series through the board dual stacked MIL-PRF-21038 Interface Transformers (0o to +70o C) These non-QPL interface transformers conform to all electrical and physical parameters of MIL-PRF-21038/27 and provide performance as required over 0o to +70o C. Built and tested in ISO 9002 approved facilities. for use in MIL-STD-1553 applications n two dual ratio transformers in a single package n performance to MIL-PRF-21038/27 requirements n built in ISO 9002 facility n 0o to +70o C operating temperatures n APPLICABLE SPECIFICATIONS n MIL-STD-1553B n MIL-STD-202 n MIL-T-10727 n MIL-PRF-21038 n ISO 9002 SUMMARY PERFORMANCE SPECIFICATIONS Impedance................................................................................................... see table Droop.............................................................................................................. < 20% Overshoot.................................................................................................. + 1V max Common mode rejection (CMR)................................................................. > 45 dB Frequency range (no load)............................................................. 75 kHz to 1MHz Operating temperature range................................................................ 0o to +70oC Weight....................................................................................................... < 5 grams Insulation resistance (min)........................................... 10K megohms @ 250 Vdc Dielectric withstanding voltage................................................................ 100 Vrms TWO PEARL BUCK COURT l BRISTOL, PA 19007-6812 l TEL 215-781-6400 l FAX 215-781-6403 l www.pulsespecialty.com CHARACTERISTICS PA RT NO. T ERMINALS RATIO (+3%) R DC (ohm s) M AX IMPEDANC E (ohm s) M IN STQ C1553-1 1-3:4-8 (11-13:14-18) 1-3:5-7 (11-13:15-17) 1CT:1CT 1.41CT:1CT 1-3 (11-13) 3.5 4-8 (14-18) 3.0 (1-3 & 11-13) 4,000 STQ C1553-2 1-3:4-8 (11-13:14-18) 1-3:5-7 (11-13:15-17) 1.4CT:1CT 2CT:1CT 1-3 (11-13) 3.0 4-8 (14-18) 3.0 (1-3 & 11-13) 7,200 STQ C1553-3 1-3:4-8 (11-13:14-18) 1-3:5-7 (11-13:15-17) 1.25CT:1CT 1.66CT:1CT 1-3 (11-13) 3.2 4-8 (14-18) 3.0 (1-3 & 11-13) 4,000 STQ C1553-5* 1-3:4-8 (11-13:14-18) 1-3:5-7 (11-13:15-17) 1CT:2.12CT 1CT:1.5CT 1-3 (11-13) 1.0 4-8 (14-18) 3.5 (4-8 & 14-18) 4,000 STQ C1553-45* 1-3:4-8 (11-13:14-18) 1-3:5-7 (11-13:15-17) 1CT:2.5CT 1CT:1.79CT 1-3 (11-13) 1.0 4-8 (14-18) 3.5 (4-8 & 14-18) 4,000 *Designed for transceivers utilizing a single supply voltage (+5V). SCHEMATICS AND DIMENSIONS Notes: 1. All dimensions are in inches. 2. Tolerances: .xx = +.008 3. All specifications and dimensions are subject to change without notice. TWO PEARL BUCK COURT l BRISTOL, PA 19007-6812 l TEL 215-781-6400 l FAX 215-781-6403 l www.pulsespecialty.com