ultrafast rectifiers, high efficiency, 20a tm microsemi scottsdale division 8700 e. thomas rd. po box 1390, scottsdale, az 85252 usa, (480) 941 - 6300, fax: (480) 947 - 1503 page 1 copyright ? 2002 2 - 3 - 2003 rev 0 www. microsemi . com scottsdale division ues704 ues704hr2 ues705 u es705hr2 ues706 UES706HR2 description appearance the ues704 series of ultrafast high - efficiency rectifiers is specifically designed for operation in power switching circuits operating at frequencies of 20 khz or higher. the low thermal resistance and forward voltage drop o f this series allows the user to replace do - 5 size devices in many applications. these devices have also been demonstrated capability in passing power - stress testing to 25 thousand cycles with full - rated forward current turned on and off without a heat si nk. this forces case temperature increases of 75 c at which time the current is removed to simulate worst case applications. the switching times increase relatively little with temperature or at different currents. do - 4 important: for the most current data, consult microsemi?s website: http://www.microsemi.com features applications / benefits very low forward voltage very fast recovery times low thermal resistance high reliability scree ning option with hr2 suffix (ie. ues704hr2) mechanically rugged standard polarity is cathode to stud. for reverse polarity, add suffix r (ie. ues704r) power switching circuits 20 khz and above with minimal parasitic switching losses catch diodes for sw itching regulators output rectifiers for high frequency square - wave inverters extremely robust in power cycling high surge capability hermetically sealed marking: part number and logo absolute maximum ratings mechanical and packaging peak invers e voltage, ues704, ues704hr2???.200 v peak inverse voltage, ues705, ues705hr2???.300 v peak inverse voltage, ues706, UES706HR2???.400 v average dc output current, i o @ t c = 100 o c ???20 a surge current, 8.3 ms?????????????.300 a thermal resistance, junction to case?????.1.5 o c /w operating and storage temp. range??. - 55 o c to +150 o c industry standard do - 4 (do - 203aa) package with 7/16 inch hex and 10 - 32 threaded stud hermetically sealed metal and glass case body metal surface finish: tin plated weight: 10 gram s (approximate) maximum unlubricated stud torque: 15 inch pounds angular orientation of terminal is undefined marking: part number electrical characteristics @ 25c unless otherwise stated microsemi part number working peak reverse voltage v rwm max imum forward voltage v f @ 20 a t p = 300 m s maximum reverse current i r @ v rwm maximum reverse recovery time* t rr t c = 25 o c t c = 125 o c t c = 25 o c t c = 125 o c ues704 ues705 ues706 ues704hr2 ues705hr2 UES706HR2 200 v 300 v 400 v 1.25 v 1 .15 v 50 m a 10 ma 50 ns * measured in circuit i f = 0.5 a, i r = 1 a, i rec = 0.25 a ues704 series
ultrafast rectifiers, high efficiency, 20a tm microsemi scottsdale division 8700 e. thomas rd. po box 1390, scottsdale, az 85252 usa, (480) 941 - 6300, fax: (480) 947 - 1503 page 2 copyright ? 2002 2 - 3 - 2003 rev 0 www. microsemi . com scottsdale division ues704 ues704hr2 ues705 u es705hr2 ues706 UES706HR2 outline and circuit ues704 series i o ? output current (a) if ? forward current (a)
ultrafast rectifiers, high efficiency, 20a tm microsemi scottsdale division 8700 e. thomas rd. po box 1390, scottsdale, az 85252 usa, (480) 941 - 6300, fax: (480) 947 - 1503 page 3 copyright ? 2002 2 - 3 - 2003 rev 0 www. microsemi . com scottsdale division ues704 ues704hr2 ues705 u es705hr2 ues706 UES706HR2 optional high reliability (hr2) screening the following tests are performed on 100% of the devices. mechanical specifications inches mm a .078 max 1.98 max. b .437 +/ - .015 11.10 +/ - 0.38 c .405 max 10.29 max. d .800 max 20.32 max. e .430 +/ - .010 10.92 +/ - 0.25 f .250 max 6.35 max. g .424 max 10.77 max. h .066 min. dia 1.68 min. dia notes: 1. cathode is stud. 2. all metal surfaces tin plated. 3. maximum unlubricated stud torque: 10 inch pounds. 4. angular orientatio n of terminal is undefined. screen mil - std - 750 method conditions 1. high temperature 1032 24 hours @ ta = 150 o c 2. temperat ure cycle 1051 f, 20 cycles, - 55 to +150 o c . no dwell required @ 25 o c , t > 10 min. @ extremes 3. hermetic seal a. fine leak b. gross leak 1071 h, helium c, liquid 4. thermal impedance 3101 5. interim electrical parameters go/no go as applicable 6. high temperature reverse blocking as applicable t= 48 hours, tc = 125c with applicable bias conditions 7. final electrical parameters go/no go as applicable notes: 1. oscilloscope: rise time 3 ns; input impedan ce = 50 w . 2. pulse generator: rise time 8 ns; source impedance 10 w . 3. current viewing resistor, non - inductive, coaxial recommended. ues704 series
|
