MJF122 MJF127

2

Motorola Bipolar Power Transistor Device Data

Characteristic

Symbol

Min

Max

Unit

OFF CHARACTERISTICS

Collector–Emitter Sustaining Voltage (1)

(IC = 100 mAdc, IB = 0)

VCEO(sus)

100

—

Vdc

Collector Cutoff Current

(VCE = 50 Vdc, IB = 0)

ICEO

—

10

µAdc

Collector Cutoff Current

(VCB = 100 Vdc, IE = 0)

ICBO

—

10

µAdc

Emitter Cutoff Current (VBE = 5 Vdc, IC = 0)

IEBO

—

2

mAdc

ON CHARACTERISTICS (1)

DC Current Gain (IC = 0.5 Adc, VCE = 3 Vdc)

hFE

1000

2000

—

—

—

Collector–Emitter Saturation Voltage (IC = 3 Adc, IB = 12 mAdc)

VCE(sat)

—

—

2

3.5

Vdc

Base–Emitter On Voltage (IC = 3 Adc, VCE = 3 Vdc)

VBE(on)

—

2.5

Vdc

DYNAMIC CHARACTERISTICS

Small–Signal Current Gain (IC = 3 Adc, VCE = 4 Vdc, f = 1 MHz)

hfe

4

—

—

Output Capacitance

MJF127

(VCB = 10 Vdc, IE = 0, f = 0.1 MHz)

MJF122

Cob

—

—

300

200

pF

(1) Pulse Test: Pulse Width

v 300 µs, Duty Cycle v 2%.

Figure 1. Switching Times Test Circuit

VCC = 30 V

IC/IB = 250

IB1 = IB2

TJ = 25°C

0.1

0.7

10

0.5

0.3

2

5

5

IC, COLLECTOR CURRENT (AMP)

td @ VBE(off) = 0 V

2

1

0.5

0.2

0.1

0.05

Figure 2. Typical Switching Times

ts

tf

0.3

3

0.2

1

0.07

0.7

3

7

PNP

NPN

≈ 120

≈ 8 k

V2

APPROX.

+8 V

V1

APPROX.

–12 V

25

µs

RB

51

D1

+ 4 V

VCC

– 30 V

RC

SCOPE

TUT

tr, tf ≤ 10 ns

DUTY CYCLE = 1%

FOR td AND tr, D1 IS DISCONNECTED

AND V2 = 0

FOR NPN TEST CIRCUIT REVERSE ALL POLARITIES.

RB & RC VARIED TO OBTAIN DESIRED CURRENT LEVELS

D1, MUST BE FAST RECOVERY TYPES, e.g.,

1N5825 USED ABOVE IB ≈ 100 mA

MSD6100 USED BELOW IB ≈ 100 mA

tr

0