2N491A datasheet(1/6 Pages) DIGITRON

部件名	2N491A

功能描述	NPN SILICON UNIJUNCTION TRANSISTOR

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制造商	DIGITRON [Digitron Semiconductors]

网页	http://www.digitroncorp.com

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DIGITRON SEMICONDUCTORS

144 Market Street

Kenilworth NJ 07033 USA

phone +1.908.245-7200

2N489-2N494, A, B

NPN SILICON UNIJUNCTION TRANSISTOR

Silicon unijunction transistors are three-terminal device having a stable “N” type negative resistance characteristic over a wide

temperature range.

FEATURES

•

Stable operation over wide temperature range

•

Low leakage current

•

Low peak point current

•

Guaranteed minimum pulse voltage

•

Available as “HR” (high reliability) screened per MIL-PRF-19500, JANTX level. Add “HR” suffix to base part number.

•

Available Non-RoHS (standard) or RoHS compliant (add PBF suffix).

MAXIMUM RATINGS

Rating

Value

Total RMS Power Dissipation (Unstabilized)

450mW

Total RMS Power Dissipation (Stabilized)

600mW

RMS Emitter Current

70mA

Peak Emitter Current (TJ = 150°C)

2 A

Emitter Reverse Voltage (TJ = 150°C)

60 V

Operating Temperature Range

-65° to +140°C

Operating Temperature Range (Stabilized)

-65° to +175°C

Storage Temperature Range

-65° to +175°C

ELECTRICAL CHARACTERISTICS (TC = 25°C unless otherwise noted)

Maximum

Minimum

Intrinsic

standoff ratio

(1)

Interbase

resistance (2)

Modulated

interbase

current

Emitter

saturation

voltage

Emitter reverse current

Peak point

current

Valley point

current

VBB = 3V

IR = 50mA

VBB = 10V

IE = 50mA

VBB = 10V

VB2E =

60V

TJ =

150°C

VB2E =

10V

VB2E

=30V

VBB = 25V

RB2 = 100Ω

VBB = 20V

Base one

peak pulse

voltage

VRR = 10V

RBBO

IB2(MOI)

VE(SAT)

IEB2O

IP

IV

VOB1

ŋ

kΩ

mA

Part number

Min

Max

Min

Max

Min

Max

Volts

µA

mA

Volts

2N489

.51

.62

4.7

6.8

22

5

2

20

-

12

8

-

2N489A

.51

.62

4.7

6.8

22

4

2

20

-

12

8

3

2N489B

.51

.62

4.7

6.8

22

4

2

20

0.2

6

8

3

2N490

.51

.62

6.2

9.1

6.8

22

5

2

20

-

12

8

-

2N490A

.51

.62

6.2

9.1

6.8

22

4

2

20

-

12

8

3

2N490B

.51

.62

6.2

9.1

6.8

22

4

2

20

0.2

6

8

3

2N490C

.51

.62

6.2

9.1

6.8

22

4

2

20

0.02

2

8

3

2N491

.56

.68

4.7

6.8

22

5

2

20

-

12

8

-

2N491A

.56

.68

4.7

6.8

22

4.3

2

20

-

12

8

3

2N491B

.56

.68

4.7

6.8

22

4.3

2

20

0.2

6

8

3

2N492

.56

.68

6.2

9.1

6.8

22

5

2

20

-

12

8

-

2N492A

.56

.68

6.2

9.1

6.8

22

4.3

2

20

-

12

8

3

2N492B

.56

.68

6.2

9.1

6.8

22

4.3

2

20

0.2

6

8

3

2N492C

.56

.68

6.2

9.1

6.8

22

4.3

2

20

0.02

2

8

3

2N493

.62

.75

4.7

6.8

22

5

2

20

-

12

8

-

2N493A

.62

.75

4.7

6.8

22

4.6

2

20

-

12

8

3

2N493B

.62

.75

4.7

6.8

22

4.6

2

20

0.2

6

8

3

2N494

.62

.75

6.2

9.1

6.8

22

5

2

20

-

12

8

-

2N494A

.62

.75

6.2

9.1

6.8

22

4.6

2

20

-

12

8

3

2N494B

.62

.75

6.2

9.1

6.8

22

4.6

2

20

0.2

6

8

3

2N494C

.62

.75

6.2

9.1

6.8

22

4.6

2

20

0.02

2

8

3

sales@digitroncorp.com

fax +1.908.245-0555

www.digitroncorp.com

Rev. 20121023

类似零件编号 - 2N491A

制造商	部件名	数据表	功能描述
New Jersey Semi-Conduct...	2N491A	144Kb / 1P	Diode
New Jersey Semi-Conduct...	2N491A	76Kb / 1P	UNIJUNCTION TRANSISTORS

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