semelab plc. telephone +44(0)1455 556565. fax +44(0)1455 552612. e-mail: sales@semelab.co.uk website: http://www.semelab.co.uk byv34?300m byv34?400m byv34?500m v rrm peak repetitive reverse voltage v rwm working peak reverse voltage v r continuous reverse voltage i frm repetitive peak forward current t p = 10 s i f(av) average forward current t case = 70c (switching operation, = 0.5, both diodes conducting) i fsm surge non repetitive forward current t p = 10 ms t stg storage temperature range t j maximum operating junction temperature 300v 400v 500v 300v 300v 400v 300v 300v 400v 200a 20a 100a ?65 to 200c 200c mechanical data dimensions in mm 16.5 13.5 10.6 13.70 2.54 bsc 10.6 3.6 dia. 0.8 4.6 1.0 2.70 bsc 123
hermetically sealed dual fast recovery silicon rectifier for hi?rel applications standard (common cathode) common anode series connection features hermetic to220 metal or ceramic surface mount package screening options available all leads isolated from case voltage range 300 to 500v average current 20a very low reverse recovery time ? t rr = 35ns very low switching losses to220 metal absolute maximum ratings (t case = 25c unless otherwise stated) document number 7916 issue 1 lab seme smd1 ceramic surface mount byv34 ?300m byv34 ?400m byv34 ?500m applications include secondary rectification in high frequency switching power supplies. byv34-xxxm byv34-xxxam byv34-xxxrm 1 = a 1 anode 1 2 = k cathode 3 = a 2 anode 2 1 = k 1 cathode 1 2 = a anode 3 = k 2 cathode 2 1 = k 1 cathode 1 2 = centre tap 3 = a 2 anode common cathode common anode series connection electrical connections semelab plc reserves the right to change test conditions, parameter limits and package dimensions without notice. information f urnished by semelab is believed to be both accurate and reliable at the time of going to press. however semelab assumes no responsibility for any errors or omi ssions discovered in its use. semelab encourages customers to verify that datasheets are current before placing orders.
semelab plc. telephone +44(0)1455 556565. fax +44(0)1455 552612. e-mail: sales@semelab.co.uk website: http://www.semelab.co.uk document number 7916 issue 1 lab seme parameter test conditions min. typ. max. unit i r reverse current v f * forward voltage t rr reverse recovery time q rr recovered charge v fp forward recovery overvoltage v r = v rwm t j = 25c v r = v rwm t j = 100c i f = 20a t c = 25c i f = 10a t c = 100c i f = 1.0a v r = 30v di / dt = 100a/ s i f = 2a v r = 30v di / dt = 20a/ s di / dt = 10a/ si f = 10a 50 0.6 1.7 1.05 50 50 2.5 a ma v ns nc v electrical characteristics (per diode) (t case = 25c unless otherwise stated) * pulse test: t p 300 s, duty cycle 2%. r jc ? thermal resistance junction ? case 1.6 c/w thermal characteristics (to220 metal case) ? both diodes conducting. byv34?300m byv34?400m byv34?500m semelab plc reserves the right to change test conditions, parameter limits and package dimensions without notice. information f urnished by semelab is believed to be both accurate and reliable at the time of going to press. however semelab assumes no responsibility for any errors or omi ssions discovered in its use. semelab encourages customers to verify that datasheets are current before placing orders.
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