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ZTK6.8 to ZTK33 (TAA550)<br />

MONOLITHIC TEMPERATURE<br />

COMPENSATED ZENER DIODES<br />

mA<br />

100<br />

ZTK II<br />

mA<br />

50<br />

ZTK 18<br />

Iz 80<br />

L<br />

40<br />

20<br />

o<br />

~<br />

"-<br />

'r\'thG =150"C/W<br />

'\ jX'RthU =250 o C/W<br />

\ with heat sink<br />

"<br />

~ r-..... K<br />

.........<br />

~ "- ,<br />

t--.. ~ \.<br />

RthU = 400"c/W ... r-.....<br />

~ ~<br />

o 100 200·C<br />

--•• Tamb,Te<br />

Admissible Zener current versus temperature<br />

lz 40<br />

La<br />

\<br />

\ RlhG =150<br />

r'\.<br />

o c/W<br />

1\<br />

'" ) R lhU =250"c/W<br />

with heat sink<br />

20<br />

'<<br />

i'.. I\. \<br />

10<br />

o<br />

o<br />

r-r-....<br />

"-<br />

'\~<br />

\<br />

I"<br />

"- '\ ~<br />

RlhU =400 o C/W ......<br />

~ ,<br />

100 200°C<br />

------i.,.~ Tomb, Te<br />

Admissible Zener current versus temperature<br />

mA<br />

50<br />

ZTK 22<br />

mA<br />

50<br />

ZTK 27<br />

Iz 40<br />

L<br />

20<br />

10<br />

o<br />

i'..<br />

'\<br />

RthG =150 o C/W<br />

\<br />

'\<br />

~.2SO'b/W<br />

"'"- with heat sink<br />

........ ........<br />

"<br />

........<br />

........ "-<br />

'\<br />

r-.....<br />

"<br />

\<br />

RthU = 400 o C/W ........<br />

~ ~<br />

o 100 200"C<br />

--".Tamb,Te<br />

Admissible Zener current versus temperature<br />

lZ 40<br />

L<br />

20<br />

10<br />

'\<br />

"- ......<br />

..... ~_W<br />

........"- ~ with heat sink<br />

r-..... ......... "<br />

RthU =400"c/W~<br />

o o<br />

~hG =150 o c/w<br />

100 200°C<br />

~ Tamble<br />

------i..<br />

Admissible Zener, current versus temperature<br />

8-84

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