MSCO328A 01-29-98

DSW2N2221A < - > ( 33807)

2N2221A

°C unless otherwise noted)

SMALL - SIGNAL CHARACTERISTICS

SYMBOL

MIN

MAX

UNIT

Output Capacitance

≤f ≤1 MHz )

8

pF

Input

Capacitance

≤f ≤1 MHz )

25

pF

SWITCHING CHARACTERISTICS

SYMBOL

MIN

MAX

UNIT

Turn - On Time

( See FIGURE 1 )

35

ns

Turn - Off Time

300

ns

°C)

LOW FREQUENCY

SYMBOL

MIN

MAX

UNIT

Common - Emitter Forward Current Transfer Ratio

30

HIGH FREQUENCY

Common - Emitter Forward Current Transfer Ratio

2.5

S p i c e M o d e l

Q2N2221A NPN ( IS = 426.3f

XTI = 3.0

EG = 1.11

VAF =250.3

BF = 72.14

ISE = 48.14p

+ NE = 2.935

IKF = 2.935

NK = 1.401

XTB = 1.5

BR = 11.49

ISC = 19.9f

+ NC = 1.88

IKR = 10.75

RC = 0.3567

CJC = 11.02p

VJC = 0.3869

MJC = 0.3292

+ FC = 0.5

CJE = 29.31p

VJE = 0.9036

MJE = 0.4101

TR = 16.89n

TF = 537.5p

+ ITF = 0.1383

XTF = 84.83m

VTF=10 )

*1. Microsemi Corp. claims no responsibility for misapplication of Spice Model information. Spice modeling should be

used as a precursor guide to in-circuit performance. Actual performance is the responsibility of the user/designer.