Diotec Products for
Power Supplies
www.diotec.com 06/2007
Input Rectification (Front End)
TVS-Diodes
AC side: protect the whole unit again st voltage spi ke s from the mains, caused by lightning, electrostatic
discharge (ESD), fast switching transie nts, etc.
DC side: protect the rectifier bridge against voltage spikes caused by fast switching transients of the
following inverter stage
Dimensioning: the maximum occuring peak input voltage resp. the DC voltage must not exceed the stand -off
voltage of the device; it may be necessary to switch devices in series to achieve higher voltage rating.
Types
1
Leaded: BZW04-…, P4KE…, BZW06-…, P6KE…, 1.5KE… , 5KP…; (400 to 5000 W)
SMD: TGL34-… , TGL41-…, P4SMA…, P6SMB…, 1.5SMC… ; (150 to 1500 W, up to 550V!)
Bridge Rectifiers
Available as complete device but can also be formed by four single devices. Recommen ded values for
protective resistor R
t
and load capacitor C
L
are given within the datasheet. R
t
includes also se ries resistance
of transformer and leads, at small powers an ad ditional device i s therefore often not necessary.
Types
1
Small power (0.5 to 2.3 A)
SMD: MYS40…380, MS40…500, S40…500, B40…500S, B40S2A…500S2A,
S40F…500F (Fast Recovery), B40…380FS (Fast Recovery), CS10…50S (Schottky)
trough hole: B40…500D, B40D2A…500D2A, B40…380FD (Fast recovery), CS10…50D (Schottky)
Medium Power (1.5 to 25 A)
Single In-line: B..C1500, B..C2300-1500; GBS4 A…M; B..C3200-2200 to B..C7000-4000; GBS4
GBU4 to GBU12; KBU4 t o KB U12; GBI10 A…M to GBI25 A…M
Square with wire leads: KBPC600, KBPC800, PB1000, PB1000S
High Power (10 to 50 A)
Square, Fast-on terminals: KBPC1500FP to KBPC5000FP
Square, Wire leads: KBPC1500WP to KBPC5000WP, KBPC2500I to KBPC3500I
3~ Bridges (6 to 35 A, up to 1600 V)
Single In-line: DBI6-… to DBI25-…; Square, Fast-on terminals: DB15-… to DB35-…
1
Preferred types are bold; colours according to Diotec Selection Guide. Datasheets see www.diotec.com, “Part search”.
R
t
~
~
-
C
L