|
Recently reported frequent incidents of TV set explosions have
aroused intense panic |
|
among worldwide consumers. One even caused death toll in China!
FIRSTOHM hereby |
announces the  worldwide
tech alert, based on FIRSTOHM's in-depth understanding
|
|
of customers' circuit applications and technical experience for
35 years time, stating that |
|
explosion incidents may probably be caused by resistors.
|
|
To reduce TV costs, large quantity of through-hole resistors are
replaced by chip resistors, |
|
while chip ones have poorer anti-surge characteristics than
through-hole ones. An important |
|
role of resistors in TV sets – surge damp – is thus not performed
well by the replacement |
|
with chip resistors. In turn, the major surge damp component,
carbon composition resistor, |
|
must take on heavier burden handling surges in TV sets.
Unfortunately, carbon composition |
|
resistors tend to decrease resistance values after surge impacts,
and eventually lose their |
|
anti-surge capability. High-voltage surges in TV sets not damped
properly will, in a manner, |
|
damage other components in circuits; or as a severe result, emit
arcing onto CRT and cause |
|
CRT to explode due to the high temperature induced by arcing! What
is more terrible is that |
|
some TV makers even completely spare carbon composition resistors
and no surge damp |
|
function exists in TV sets. That's why incidents of TV set
explosions are heard so frequent |
|
recently! |
|
Using components with higher quality and reliability can reduce
possibility of TV set |
|
explosions. It is highly recommended to replace traditional carbon
composition resistor |
|
with FIRSTOHM's PPR– Pulse Protective Resistor - with no change in
value after |
|
surge impacts and with a cost-effective price. Also it is recommended
to use FIRSTOHM's |
|
HVR - High Voltage Resistor with world's smallest size approved by
VDE. |
|
FIRSTOHM is an expert in high voltage, surge, and pulse resistors
with in-depth |
|
understanding in customers' needs. FIRSTOHM is more than pleased
to provide related |
|
consulting for your applications. Please write to
QR@Firstohm.com.tw. |
