Littelfuse SA Series Bedienungsanleitung PDF herunterladen (Seite 3)

Transient Voltage Suppression Diodes

Speciﬁcations are subject to change without notice.

Revised: 01/24/14

Axial Leaded – 500W > SA series

I-V Curve Characteristics

Voltage Transients

Time

Voltage Across TVS

Current Through TVS

Voltage or Current

Figure 1 - TVS Transients Clamping Waveform

Ratings and Characteristic Curves (T

=25°C unless otherwise noted)

Figure 2 - Peak Pulse Power Rating

PPM

- Peak Pulse Power (KW)

01.µs

1.0µs 10µs

100µs

1.0ms

10ms

0.1

Non-repetitive Pulse

Waveform Shown in Fig. 3

=25ûC

- Pulse Width (sec.)

Half SINE

Exponential

Square

Ipp

Uni-directional

Ipp

Bi-directional

PPM

Peak Pulse Power Dissipation -- Max power dissipation

Stand-off Voltage -- Maximum voltage that can be applied to the TVS without operation

Breakdown Voltage -- Maximum voltage that ﬂows though the TVS at a speciﬁed test current (I

)

Clamping Voltage -- Peak voltage measured across the suppressor at a speciﬁed Ippm (peak impulse current)

Reverse Leakage Current -- Current measured at V

Forward Voltage Drop for Uni-directional

continues on next page.

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