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11/12/01

Supertex Inc. does not recommend the use of its products in life support applications and will not knowingly sell its products for use in such applications unless it receives an adequate "products liability

indemnification insurance agreement." Supertex does not assume responsibility for use of devices described and limits its liability to the replacement of devices determined to be defective due to

workmanship. No responsibility is assumed for possible omissions or inaccuracies. Circuitry and specifications are subject to change without notice. For the latest product specifications, refer to the

Supertex website: http://www.supertex.com. For complete liability information on all Supertex products, refer to the most current databook or to the Legal/Disclaimer page on the Supertex website.

BV

I

D(ON)

V

GS(th)

BV

DGS

(max)

(min)

(max)

TO-243AA*

18V

2.5Ω

250mA

1.0V

TN2501N8

TN2501ND

Low Threshold

N-Channel Enhancement-Mode

Vertical DMOS FETs

Features

❏ Low threshold

❏ High input impedance

❏ Low input capacitance — 110pF max.

❏ Fast switching speeds

❏ Low on resistance

❏ Free from secondary breakdown

❏ Low input and output leakage

Low Threshold DMOS Technology

These low threshold enhancement-mode (normally-off) transis-

tors utilize a vertical DMOS structure and Supertex’s well-proven

silicon-gate manufacturing process. This combination produces

devices with the power handling capabilities of bipolar transistors

and with the high input impedance and positive temperature

coefficient inherent in MOS devices. Characteristic of all MOS

structures, these devices are free from thermal runaway and

thermally-induced secondary breakdown.

Supertex’s vertical DMOS FETs are ideally suited to a wide range

of switching and amplifying applications where very low threshold

voltage, high breakdown voltage, high input impedance, low input

capacitance, and fast switching speeds are desired.

Applications

❏ Logic level interfaces – ideal for TTL and CMOS

❏ Solid state relays

❏ Battery operated systems

❏ Photo voltaic drives

❏ Analog switches

❏ General purpose line drivers

❏ Telecom switches

Absolute Maximum Ratings

Drain-to-Source Voltage

Drain-to-Gate Voltage

BV

DGS

Gate-to-Source Voltage

± 15V

Operating and Storage Temperature

-55°C to +150°C

Soldering Temperature*

300°C

Ordering Information

Package Option

Order Number /Package

Note: See Package Outline section for dimensions.

TN2501

TO-243AA

(SOT-89)

G

D

S

D

Product marking for TO-243AA:

Where

❋ = 2-week alpha date code

TN5U

❋