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ITT - Index of

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<strong>ITT</strong><br />

1N746 THROUGH 1N759<br />

ZENER DIODES<br />

- -----<br />

SEMICONDUCTORS<br />

400mW, 3.3 VOLTS TO 12 VOLTS<br />

SILICON GLASS ZENER DIODES<br />

FEATURES<br />

• Hermetically sealed<br />

• Rugged construction<br />

• Planar, nitride passivated<br />

• Low dynamic impedance<br />

• Weldable leads<br />

<strong>ITT</strong>'s glass zeners are inherently reliable and<br />

are ideally suited for use under stringent environmental<br />

conditions. The applications include:<br />

Computers, Instruments, Automotive,<br />

Industrial and Entertainment markets.<br />

DYNAMIC IMPEDANCE<br />

The Zener Impedance is derived from the 60H z<br />

AC voltage which results when an AC current<br />

having an RMS value equal to 10% <strong>of</strong> the DC<br />

Zener current (I zt or Izk) is superimposed on<br />

Izt or Izk. Zener Impedance is measured at two<br />

points to insure a sharp knee on the break<br />

down curve and eliminates unstable units.<br />

ELECTRICAL SPECIFICATIONS @ 25°C<br />

IDENTIFICATION OF SYMBOLS<br />

Iz<br />

Zz<br />

Izt<br />

Vz<br />

Zzt<br />

Izk<br />

Zzk<br />

Izm<br />

If<br />

Vf<br />

Zener Current<br />

Zener impedance<br />

Zener test current<br />

Nominal Zener voltage<br />

Zener impedance at test<br />

current (Izt)<br />

Zener current near breakdown knee<br />

Zener impedance near breakdown<br />

knee (lzk)<br />

Maximum DC Zener current<br />

(limited by power dissipation)<br />

Forward current<br />

Forward voltage<br />

ABSOLUTE MAXIMUM RATINGS<br />

Characteristics<br />

Units<br />

Max power dissipation @ 50°C ...... 400mW<br />

Derating factor ................. 3.2mWrC<br />

Max forward voltage @ 200 ma. . . . .. 1.2volts<br />

Operating and storage temperature<br />

range .................. -65°C to 175°C<br />

Maximum Maximum Current @ Vr=1.0V<br />

Regulat~~ . Test Dynamic Regulator (In)<br />

Typical<br />

Type Voltage ~urrent Impedance Current<br />

Temperature<br />

Number (Vz) (b) (ZZT) (Izm) TA =25°C TA=150°C Coefficient<br />

.. .<br />

v rna ohms rna I'a !La ·/.rc<br />

1N746 3.3 20 28<br />

1N747 3.6 20 24<br />

1N748 3.9 20 23<br />

1N749 4.3 20 22<br />

1N7~0 4.7 20 19<br />

1N751 5.1 20 17<br />

1N752 5.6 20 11<br />

1N753 6.2 20 7<br />

1N754 6.8 20 5<br />

1N755 7.5 20 6<br />

1N756 3.2 20 8<br />

1N757 9.1- 20 10<br />

1N758 10.0 20 17<br />

1N759 12.0 20 30<br />

13-1<br />

Maximum~1 Reverse<br />

110 10 30 - .062<br />

100 10 30 - .055<br />

95 10 30 - .049<br />

85 2<br />

, 30 - .036<br />

75 2 30 - .018<br />

70 1 20 - .008<br />

65 1 20 .006<br />

60 0.1 20 .022<br />

55 0.1 20 + .035<br />

50 0.1 20 + .045<br />

45 0.1 20 + .052<br />

40 0.1 20 + .056<br />

35 0.1 20 + .060<br />

30 0.1 20 + .060

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