2N3055 MJ2955

2

Motorola Bipolar Power Transistor Device Data

Characteristic

Symbol

Min

Max

Unit

*OFF CHARACTERISTICS

Collector–Emitter Sustaining Voltage (1)

(IC = 200 mAdc, IB = 0)

VCEO(sus)

60

—

Vdc

Collector–Emitter Sustaining Voltage (1)

(IC = 200 mAdc, RBE = 100 Ohms)

VCER(sus)

70

—

Vdc

Collector Cutoff Current

(VCE = 30 Vdc, IB = 0)

ICEO

—

0.7

mAdc

Collector Cutoff Current

(VCE = 100 Vdc, VBE(off) = 1.5 Vdc)

(VCE = 100 Vdc, VBE(off) = 1.5 Vdc, TC = 150_C)

ICEX

—

—

1.0

5.0

mAdc

Emitter Cutoff Current

(VBE = 7.0 Vdc, IC = 0)

IEBO

—

5.0

mAdc

*ON CHARACTERISTICS (1)

DC Current Gain

(IC = 4.0 Adc, VCE = 4.0 Vdc)

(IC = 10 Adc, VCE = 4.0 Vdc)

hFE

20

5.0

70

—

—

Collector–Emitter Saturation Voltage

(IC = 4.0 Adc, IB = 400 mAdc)

(IC = 10 Adc, IB = 3.3 Adc)

VCE(sat)

—

1.1

3.0

Vdc

Base–Emitter On Voltage

(IC = 4.0 Adc, VCE = 4.0 Vdc)

VBE(on)

—

1.5

Vdc

SECOND BREAKDOWN

Second Breakdown Collector Current with Base Forward Biased

(VCE = 40 Vdc, t = 1.0 s, Nonrepetitive)

Is/b

2.87

—

Adc

DYNAMIC CHARACTERISTICS

Current Gain — Bandwidth Product

(IC = 0.5 Adc, VCE = 10 Vdc, f = 1.0 MHz)

fT

2.5

—

MHz

*Small–Signal Current Gain

(IC = 1.0 Adc, VCE = 4.0 Vdc, f = 1.0 kHz)

hfe

15

120

—

*Small–Signal Current Gain Cutoff Frequency

(VCE = 4.0 Vdc, IC = 1.0 Adc, f = 1.0 kHz)

fhfe

10

—

kHz

* Indicates Within JEDEC Registration. (2N3055)

(1) Pulse Test: Pulse Width

v 300 µs, Duty Cycle v 2.0%.

20

6

Figure 2. Active Region Safe Operating Area

VCE, COLLECTOR–EMITTER VOLTAGE (VOLTS)

10

6

4

2

1

0.6

0.4

0.2

10

20

40

60

2N3055, MJ2955

dc

500

µs

1 ms

250

µs

50

µs

BONDING WIRE LIMIT

THERMALLY LIMITED @ TC = 25°C (SINGLE PULSE)

SECOND BREAKDOWN LIMIT

There are two limitations on the power handling ability of a

transistor: average junction temperature and second break-

down. Safe operating area curves indicate IC – VCE limits of

the transistor that must be observed for reliable operation;

i.e., the transistor must not be subjected to greater dissipa-

tion than the curves indicate.

The data of Figure 2 is based on TC = 25_C; TJ(pk) is

variable depending on power level. Second breakdown pulse

limits are valid for duty cycles to 10% but must be derated for

temperature according to Figure 1.