? north america tel: 800.366.2266 / fax: 978.366.2266 ? europe tel: 44.1908.574.200 / fax: 44.1908.574.300 ? asia/pacific tel: 81.44.844.8296 / fax: 81.44.844.8298 visit www.macomtech.com for additi onal data sheets and prod uct information. m/a-com technology solutions inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. 1 dual anti-parallel non-magnetic pin diode rohs compliant v1 MA45471 advanced: data sheets contain information regarding a product m/a-com technology solutions is considering for development. performance is based on target specifications, simulated results, and/or prototype measurements. commitment to develop is not guaranteed. preliminary: data sheets contain information regarding a product m/a-com technology solutions has under development. performance is based on engineering tests. specifications are typical. mechanical outline has been fixed. engineering samples and/or test data may be available. commitment to produce in volume is not guaranteed. features ? designed for mri applications ? anti-parallel self bias arrangement ? non-magnetic surface mount package ? spc process for superior parametric repeatability ? rohs compliant with 260c reflow compatibility description the MA45471 device acts as a passive switch using silicon pin diodes in a surface mount non? magnetic package. the pin diode pair are arranged in an anti-parallel configuration and encapsulated with a non conductive epoxy resin. applications the MA45471 is well suited for mri passive switching applications. the pin diodes become a high q, r-c network under small signal and behave as an effective passive rectifier or short circuit under high rf signal to tune and de-tune the resonant mri tank circuit. the anti-parallel arrangement provides for more efficient rf power handling. absolute maximum ratings @ t a =+25 c (unless otherwise noted) 1 1. operation of this device abov e any one of these parameters may cause permanent damage. 2. please refer to application note m538 for surface mounting instructions 3. total current per diode= i (rms) + i (dc) @ +25c parameter absolute maximum reverse voltage 75v forward current 2a operating temperature -55 c to +125 c storage temperature -55 c to +125 c power dissipation (per diode) 1.7 w junction temperature +175 c schematic internal construction
? north america tel: 800.366.2266 / fax: 978.366.2266 ? europe tel: 44.1908.574.200 / fax: 44.1908.574.300 ? asia/pacific tel: 81.44.844.8296 / fax: 81.44.844.8298 visit www.macomtech.com for additi onal data sheets and prod uct information. m/a-com technology solutions inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. 2 dual anti-parallel non-magnetic pin diode rohs compliant v1 MA45471 advanced: data sheets contain information regarding a product m/a-com technology solutions is considering for development. performance is based on target specifications, simulated results, and/or prototype measurements. commitment to develop is not guaranteed. preliminary: data sheets contain information regarding a product m/a-com technology solutions has under development. performance is based on engineering tests. specifications are typical. mechanical outline has been fixed. engineering samples and/or test data may be available. commitment to produce in volume is not guaranteed. case style 1134 part number junction capacitance forward voltage ? forward voltage carrier lifetime f =1mhz vr = 0v if = 20ua if = 20ua (between each diode) if =10ma / ir =6 ma (pf) (v) (mv) (ns) MA45471 1.25 - 1.50 0.5 - 0.8 +/-20 200 total capacitance f = 1mhz vr = 0v (pf) 3.0 - 3.5 breakdown voltage ir = 10a (v) 75 electrical performance @ t a =+25 c
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