KW4-521 SERIES

LED Numeric Display

Four Digit (0.52")

INTERNAL CIRCUIT DIAGRAM

PACKAGE DIMENSIONS

PART NO. SELECTION AND APPLICATION INFORMATION (RATINGS AT 25

o

C AMBIENT)

C.C

or

C.A

Hi-Eff. Red

Super Red

Green

Super Green

Yellow

Hi-Eff Red

Super Red

Green

Super Green

Yellow

Emitted

Color

GaAsP/GaP

GaAlAs

GaP

GaP

GaAsP/GaP

GaAsP/GaP

GaAlAs

GaP

GaP

GaAsP/GaP

Raw

Material

Chip

635

660

565

570

585

635

660

565

570

585

45

20

30

30

30

45

20

30

30

30

∆λ

(nm)

100

100

100

100

100

100

100

100

100

100

Pd

(mW)

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

If

(mA)

1.7

1.5

1.7

1.7

1.7

1.7

1.5

1.7

1.7

1.7

1.9

1.9

2.2

2.2

1.9

1.9

1.9

2.2

2.2

1.9

2.6

2.6

2.6

2.6

2.6

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

750

5600

750

850

700

750

5600

750

850

700

2000

21000

2000

2200

1600

2000

21000

2000

2200

1600

Electro-optical Data(at 10mA)

KW4-521A3

KW4-521AS

KW4-521A2

KW4-521AG

KW4-521A6

KW4-521C3

KW4-521CS

KW4-521C2

KW4-521CG

KW4-521C6

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).

DESCRIPTION:

The KW4-521 series is 0.52 inch (13.20mm) height four digit display.

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

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.

DIG.1

DIG.2

DIG.3

DIG.4

B

C

DP

7.60

1.35

12.70

15.24

φ0.50

12.70

2.54*5=12.70

12.70

PIN1

50.80

10

o

D

E

F

A

G

A

8

B

7

C

12

D

4

E

1

F

9

G

5

DP

DIG.1

23

6

10

DIG.2

DIG.3

DIG.4

11

A

B

C

D

E

F

G DP A

B

C

D

E

F

G DP

A

B

C

D

E

F

G DP

A

8

B

7

C

12

D

4

E

1

F

9

G

5

DP

DIG.1

23

6

10

DIG.2

DIG.3

DIG.4

11

A

B

C

D

E

F

G DP A

B

C

D

E

F

G DP

A

B

C

D

E

F

G DP

+