NTE6410

Unijunction Transistor (UJT)

Description:

The NTE6410 is a PN unijunction transistor in a TO92 type package designed for use in pulse and

timing circuits, sensing circuits and thyristor trigger circuits.

300mW

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Derate Above 25

°C

3.0mW/

°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

50mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.5A

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

30V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

35V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–65

° to +125°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–65

° to +150°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Note 1. Duty cycle

≤ 1%, PRR = 10 PPS

Parameter

Symbol

Test Conditions

Min

Typ

Max

Unit

Intrinsic Standoff Ratio

η

0.70

–

0.85

Interbase Resistance

4.0

6.0

9.1

k

Ω

Interbase Resistance Temperature Coefficient

0.1

–

0.9

%/

°C

Emitter Saturation Voltage

–

2.5

–

V

Modulated Interbase Current

–

15

–

mA

Emitter Reverse Current

–

0.005

1.0

µA

Peak–Point Emitter Current

–

1.0

5.0

µA

Valley–Point Current

4.0

7.0

–

mA

Base–One Peak Pulse Voltage

5.0

8.0

–

V

creases with temperature at approximately 2.5mV/

form a relaxation oscillator, the remaining circuitry serves as a peak–voltage detector. The

the value of

η is read directly from the meter, if full scale on the meter reads 1.0.

Note 4. Use pulse techniques: PW

∼ 300µs, duty cycle ≤ 2.0% to avoid internal heating, which may

result in erroneous readings.