Diotec Products for Set Top Boxes
Version 2006-02-07
Diotec Products
for Set Top Boxes
Power Supply, Control and Protection
Power Supply
Standard and Schottky Rectifiers, Bridge Rectifiers
Signal Processing / Control
Zener Diodes, Small Signal Diodes and Transistors
Protection
Transient Voltage Suppressor Diodes (TVS)
© Diotec Semiconductor AG http://www.diotec.com/ 1
Diotec Products for Set Top Boxes
Power Supply: Input Stage
Function Axial / THT
1
) SMD Part Description
Input Protection P4KE...Cx
2
)
P6KE...Cx
1.5KE...Cx
TGL41-...Cx, P4SMA...Cx
P6SMB...Cx
1.5SMC...Cx
400 W bidirectional TVS
600 W bidirectional TVS
1500 W bidirectional TVS
Input Bridge 4x 1N4007 4x SM4007 1 A / 1000 V Standard Recov.
B250C2300-1500, B250R MS250, S250, B250S 0.5 to 2.0 A, 600 V Standard
B380C2300-1500, B380R MS380, S380, B380S 0.5 to 2.0 A, 800 V Standard
B500C2300-1500, B500R MS500, S500, B500S 0.5 to 2.0 A, 1000 V Standard
Gate Protection
P4KE...Cx
TGL-34...Cx
TGL41-...Cx, P4SMA...Cx
150 W bidirectional TVS
400 W bidirectional TVS
Snubber Circuit
3
BA158, 1N4937
BA158, 1N4937
FR1J
FR1J
1 A, 600 V Fast Recovery
1 A, 600 V Fast Recovery
UF4005, UF4006 US1J, US1K 1 A, 600 to 800 V Ultrafast
P4KE...x
P6KE...x
P4SMA...x
P6SMB...x
400 W TVS
600 W TVS
Telecom
Interface
4
)
1N4004 MYS125, MS125 1.0 / 0.5 A, 400 / 250 V Std.
Auxiliary Supply
4
) 4x 1N4007 1x MS500, S500, B500S 0.5 to 1.0 A, 1000 V Standard
1 THT = Through Hole Technology
2 Letter x = “ “ denotes 10%, x = “A” 5% tolerance in breakdown voltage V
BR
,
3 The Snubber design is highly dependent on the primary MOSFET switch used. Some switches may not need a snubber but require a
BA158/1N4937 or a 1N4007 to generate a lower start-up voltage on the primary side.
4 Not shown in the circuit
2 http://www.diotec.com/ © Diotec Semiconductor AG
85...265
V
AC
3.3 V
DC
5.0 V
DC
12 V
DC
16..32 V
DC