Bilateral Trigger Diacs

Thyristor Product Catalog

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Figure 8.5

Circuit Used to Measure Diac Characteristics

(See Figure 8.4.)

Figure 8.6

Peak Output Current vs Triggering Capacitance

Figure 8.7

V-I Characteristics

120V RMS

60 Hz

47 k

Ω

D.U.T.

RL

20

Ω

1%

VC

100 k

Ω

*

CT

IL

O.1

µF

*Adjust for one firing in each half cycle. D.U.T. = Diac

Triggering Capacitance (CT) - µF

.01

.02

.03

.04

.05

.06

.07

.08

.09

0

50

100

150

200

250

300

Per Figure 8.5 with

RL of 20Ω

TYPICAL

(35

V

DEVICE)

.10

10mA

Breakover

Current

IBO

-VBO

Voltage

Current

Breakover

Voltage

VBO

+VBO

V