BD234 datasheet(2/4 Pages) ONSEMI

2 / 4 page

BD237 (NPN), BD234 (PNP), BD238 (PNP)

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ELECTRICAL CHARACTERISTICS (TC = 25_C unless otherwise noted)

Characteristic

Symbol

Type

Min

Max

Unit

Collector−Emitter Sustaining Voltage (Note 1)

(IC = 0.1 Adc, IB = 0)

V(BR)CEO

BD237, BD238

BD234

−

Vdc

Collector Cutoff Current

(VCB = 100 Vdc, IE = 0)

(VCB = 60 Vdc, IE = 0)

ICBO

BD237, BD238

BD234

−

0.1

mAdc

Emitter Cutoff Current

(VBE = 5.0 Vdc, IC = 0)

IEBO

−

1.0

mAdc

DC Current Gain

(IC = 0.15 A, VCE = 2.0 V)

(IC = 1.0 A, VCE = 2.0 V)

hFE1

hFE2

−

Collector−Emitter Saturation Voltage (Note 1)

(IC = 1.0 Adc, IB = 0.1 Adc)

VCE(sat)

−

0.6

Vdc

Base−Emitter On Voltage (Note 1)

(IC = 1.0 Adc, VCE = 2.0 Vdc)

VBE(on)

−

1.3

Vdc

Current−Gain − Bandwidth Product

(IC = 250 mAdc, VCE = 10 Vdc, f = 1.0 MHz)

−

3.0

−

MHz

1. Pulse Test: Pulse Width

x 300 ms, Duty Cycle x 2.0%.

Figure 1. Active Region Safe Operating Area

VCE, COLLECTOR−EMITTER VOLTAGE (VOLTS)

0.1

100

0.3

TJ = 150°C

5 ms

100 ms

1 ms

BD237

BD236

The Safe Operating Area Curves indicate IC−VCE limits

below which the device will not enter secondary breakdown.

Collector load lines for specific circuits must fall within the

applicable Safe Area to avoid causing a catastrophic failure.

insure

operation

below

the

maximum

TJ,

power−temperature derating must be observed for both

steady state and pulse power conditions.

Figure 2. Collector Saturation Region

IB, BASE CURRENT (mA)

1.0

0.2

0.8

0.6

0.4

0.2

1.0

2.0

200

IC = 0.1 A

0.25 A

1.0 A

0.5 A

0.3

0.5

100

3.0

5.0

TJ = 25°C

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