vishay by203-12s / 16s / 20s document number 86002 rev. 1.7, 11-aug-04 vishay semiconductors www.vishay.com 1 949539 fast avalanche sinterglass diode features ? glass passivated junction hermetically sealed package applications fast rectification and switching avalanche sinterglass diode for tv-line output circuits and switch mode power supply mechanical data case: sod-57 sintered glass case terminals: plated axial leads, solderable per mil-std-750, method 2026 polarity: color band denotes cathode end mounting position: any weight: approx. 369 mg parts table absolute maximum ratings t amb = 25 c, unless otherwise specified part type differentiation package by203-12s v r = 1200 v; i fav = 250 ma sod-57 BY203-16S v r = 1600 v; i fav = 250 ma sod-57 by203-20s v r = 2000 v; i fav = 250 ma sod-57 parameter test condition part symbol value unit reverse voltage = repetitive peak reverse voltage i r = 100 a by203-12s v r = v rrm 1200 v BY203-16S v r = v rrm 1600 v by203-20s v r = v rrm 2000 v average forward current i fav 250 ma peak forward surge current t p = 10 ms half sinewave i fsm 20 a junction temperature range t j -55 to +150 c storage temperature range t stg -55 to +175 c non repetitive reverse avalanche energy i (br)r = 0.4 a e r 10 mj
www.vishay.com 2 document number 86002 rev. 1.7, 11-aug-04 vishay by203-12s / 16s / 20s vishay semiconductors maximum thermal resistance t amb = 25 c, unless otherwise specified electrical characteristics t amb = 25 c, unless otherwise specified typical characteristics (t amb = 25 c unless otherwise specified) parameter test condition symbol value unit junction ambient l = 10 mm, t l = constant r thja 45 k/w maximum lead length r thja 100 k/w parameter test condition part symbol min ty p. max unit forward voltage i f = 200 ma, t p /t = 0.01, t p = 0.3 ms v f 2.4 v reverse current v r = 700 v by203-12s i r 2 a v r = 1000 v BY203-16S i r 2 a v r = 1200 v by203-20s i r 2 a breakdown voltage i r = 100 a, t p /t = 0.01, t p = 0.3 ms by203-12s v (br) 1200 v BY203-16S v (br) 1600 v by203-20s v (br) 2000 v reverse recovery time i f = 0.5 a, i r = 1 a, i r = 0.25 a t rr 300 ns figure 1. junction temperature vs. reverse/repetitive peak reverse voltage 0 400 800 1200 0 t ? junction temperature ( c ) j v r ,v rrm ? reverse / repetitive peak reverse volta g e ( v ) 1600 94 9080 40 80 120 160 240 200 v r v rrm by203/12 by203/20 by203/16 figure 2. forward current vs. forward voltage i ? forward current (a) 0.001 0.010 0.100 1.000 10.000 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 v f ? forward voltag e(v) 16397 f t j =25c t j =175c
vishay by203-12s / 16s / 20s document number 86002 rev. 1.7, 11-aug-04 vishay semiconductors www.vishay.com 3 package dimensions in mm (inches) figure 3. max. average forward current vs. ambient temperature figure 4. reverse current vs. junction temperature 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0 30 60 90 120 150 t amb ? ambient temperature (c ) 16398 i ?average forwardcurrent ( a ) fav v r =v rrm half sinewave r thja =45k/w l=10mm r thja =100k/w pcb: d=25mm 1 10 100 1000 25 50 75 100 125 150 t j ? junction temperature ( c ) 16399 v r =v rrm i ? reverse current ( a) r figure 5. max. reverse power dissipation vs. junction temperature figure 6. diode capacitance vs. reverse voltage 0 100 200 300 400 500 25 50 75 100 125 150 t j ? junction temperature ( c ) 16400 v r =v rrm p ? reverse power dissipation ( mw) r p r ?limit @100%v r p r ?limit @80%v r 0 2 4 6 8 10 12 14 16 18 0.1 1.0 10.0 100.0 v r ? reverse voltag e(v) 16401 c ? diode capacitance ( pf ) d f=1mhz cathode identification 0.82 (0.032) max. sintered glass case sod-57 18955 26(1.014) min. 26(1.014) min. iso method e 3.4 (0.133)max. 4.2 (0.164) max.
www.vishay.com 4 document number 86002 rev. 1.7, 11-aug-04 vishay by203-12s / 16s / 20s vishay semiconductors ozone depleting substances policy statement it is the policy of vishay semiconductor gmbh to 1. meet all present and future national and international statutory requirements. 2. regularly and continuously improve the performance of our products, processes, distribution and operatingsystems with respect to their impact on the health and safety of our employees and the public, as well as their impact on the environment. it is particular concern to control or eliminate releases of those substances into the atmosphere which are known as ozone depleting substances (odss). the montreal protocol (1987) and its london amendments (1990) intend to severely restrict the use of odss and forbid their use within the next ten years. various national and international initiatives are pressing for an earlier ban on these substances. vishay semiconductor gmbh has been able to use its policy of continuous improvements to eliminate the use of odss listed in the following documents. 1. annex a, b and list of transitional substances of the montreal protocol and the london amendments respectively 2. class i and ii ozone depleting substances in the clean air act amendments of 1990 by the environmental protection agency (epa) in the usa 3. council decision 88/540/eec and 91/690/eec annex a, b and c (transitional substances) respectively. vishay semiconductor gmbh can certify that our semiconductors are not manufactured with ozone depleting substances and do not contain such substances. we reserve the right to make changes to improve technical design and may do so without further notice. parameters can vary in different applications. all operating parameters must be validated for each customer application by the customer. should the buyer use vishay semiconductors products for any unintended or unauthorized application, the buyer shall indemnify vishay semiconductors against all claims, costs, damages, and expenses, arising out of, directly or indirectly, any claim of personal damage, injury or death associated with such unintended or unauthorized use. vishay semiconductor gmbh, p.o.b. 3535, d-74025 heilbronn, germany telephone: 49 (0)7131 67 2831, fax number: 49 (0)7131 67 2423
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