KW4-251 SERIES

LED Numeric Display

Four Digit (0.25")

DESCRIPTION:

The KW4-251 series is 0.25 inch (6.20mm) height four digit display.

All devices are available as either common anode or common cathode.

INTERNAL CIRCUIT DIAGRAM

PACKAGE DIMENSIONS

PART NO. SELECTION AND APPLICATION INFORMATION (RATINGS AT 25

o

C AMBIENT)

C.C

or

C.A

Bright Red

Hi-Eff. Red

Super Red

Green

Super Green

Yellow

Bright Red

Hi-Eff Red

Super Red

Green

Super Green

Yellow

Emitted

Color

GaP

GaAsP/GaP

GaAlAs

GaP

GaP

GaAsP/GaP

GaP

GaAsP/GaP

GaAlAs

GaP

GaP

GaAsP/GaP

Raw

Material

Chip

700

635

660

565

570

585

700

635

660

565

570

585

90

45

20

30

30

30

90

45

20

30

30

30

∆λ

(nm)

100

100

100

100

100

100

100

100

100

100

100

100

Pd

(mW)

100

100

100

100

100

100

100

100

100

100

100

100

If

(Peak)

(mA)

If

(Rec)

mA

Absolute Maximum Ratings

50

50

50

50

50

50

50

50

50

50

50

50

If

(mA)

1.7

1.7

1.5

1.7

1.7

1.7

1.7

1.7

1.5

1.7

1.7

1.7

2.4

1.9

1.9

2.2

2.2

1.9

2.4

1.9

1.9

2.2

2.2

1.9

2.8

2.6

2.6

2.6

2.6

2.6

2.8

2.6

2.6

2.6

2.6

2.6

10-20

10-20

10-20

10-20

10-20

10-20

10-20

10-20

10-20

10-20

10-20

10-20

300

700

1500

700

850

600

300

700

1500

700

850

600

550

1800

5000

1600

1900

1500

550

1800

5000

1600

1900

1500

Electro-optical Data(at 10mA)

KW4-251A5

KW4-251A3

KW4-251AS

KW4-251A2

KW4-251AG

KW4-251A6

KW4-251C5

KW4-251C3

KW4-251CS

KW4-251C2

KW4-251CG

KW4-251C6

Part No.

Common

Anode

Common

Cathode

Wave

Length

λρ (nm)

Vf (V)

Per Segment

Min. Typ. Max.

Iv (

µcd)

Per Segment

Min.

Typ.

REMARKS : 1. The average luminous intensity is obtained by summing the luminous intensity of each segment and dividing by the total number of segments.

2. Luminous intensity is measured with a light sensor and filter combination that approximates the CIE (International Commission on Illumination) eye-response curve.

3. Clean only by pure water, isopropanol, ethanol, Freon TF (or equivalent).

TESTING CONDITION FOR EACH PARAMETER :

Parameter

Forward Voltage

Peak Emission Wave Length

Spectral Line Half-Width

Reverse Current

Average Luminous Intensity

Symbol

Vf

λρ

∆λ

Ir

Iv

Unit

V

nm

nm

µA

µ cd

Test Condition

If=20mA

If=20mA

If=20mA

Vr=5V

If=10mA

ABSOLUTE MAXIMUM RATINGS: (Ta=25

o

C)

Max

5 V

100

µA

0.4mA/

-40

-40

Parameter

Reverse Voltage per segment

Reverse Current per segment (Vr = 5V)

Derating Linear from 25

Operating Temperature Range

Storage Temperature Range

Soldering Temperature 1.6mm(1/16") from body for 5 sec. at 260

NOTES : 1. All dimensions are in millimeters (inches).

2. Tolerance is +0.25mm(0.010) unless otherwise specified.

3. Specifications are subject to change without notice.

4. NP: No Pin.

5. NC: No Connect.

10.0

O

6.00

6.00

6.00

φ0.50

8.40

36.00

2.54 x 11 = 27.94

PIN 1

DIG.1

DIG.2

DIG.3

DIG.4

D7

D8

D1

D4

D5

D6

F

E

G

A

B

C

D

D2

D3

L

3.50

0.80

+

D1 D2 D3

24

23 2

1 15 19 11 4 21 20 22

7

6

9

16

17 18

14

12

AB C D

DIG.1

3

EF G AB C D

DIG.2

5

EF G

A

D4 D5

D7

D6

L D8

BC D

DIG.3

8

EF G

AB C D

DIG.4

10

13

EF G

D1 D2 D3

24

23 2

1 15 19 11 4 21 20 22

7

6

9

16

17 18

14

12

AB C D

DIG.1

3

EF G AB C D

DIG.2

5

EF G

A

D4 D5

D7

D6

L D8

BC D

DIG.3

8

EF G

AB C D

DIG.4

10

13

EF G