4251 K Series T 1 3/4, 5mm Round, Ultra Bright

These K series lamps are made with the brightest AlInGaP chips which can be used for super brightness at low current (2mA) or ultra brightness at standard current (20mA). Please note the long lead is the anode
General Information

Operating Temperature Range

-30 °C to +85 °C

Storage Temperature Range

-55 °C to +100 °C

Reflow Soldering Temperature

260 °C for 5 sec max
APPLICATION INFORMATION (ALL RATINGS AT 25 °C AMBIENT)

Part No.

Emitted

Color

Peak

Dl

Absolute Maximum Ratings

E/O Characteristics

l

Pd

If (mA)

Ir

Vr

Iv (mcd)

@If=20mA

Vf (V)
@ If=20mA

2Q1/2

(nM)

(nM)

(mW)

dc

1/10 duty @ 1 khz

@Vr=5V
(µA)

(V)

2mA

Min

Typ

Min

Typ

(Deg)

KRC4251-5

Red

632

20

120

25

200

10

5

138

1500

2460

2.0

2.4

10

KRC4251-6

Red

632

20

120

25

200

10

5

167

1810

3100

2.0

2.4

10

KYC4251-5

Yellow

591

15

120

25

200

10

5

163

1720

2790

2.0

2.4

10

KYC4251-6

Yellow

591

15

120

25

200

10

5

189

2150

3440

2.0

2.4

10

KYC4251-7

Yellow

591

15

120

25

200

10

5

-

2860

3720

2.0

2.4

10

KOC4251-5

Orange

621

18

120

25

200

10

5

186

1960

3350

2.0

2.4

10

KOC4251-6

Orange

621

18

120

25

200

10

5

216

2450

4080

2.0

2.4

10

KOC4251-7

Orange

621

18

120

25

200

10

5

-

3260

4240

2.0

2.4

10

KDC4251-5

DeepRd

650

20

120

25

200

10

5

-

1090

1480

2.0

2.4

10

KYOC4251-5

YelOrng

611

17

120

25

200

10

5

-

1840

3070

2.0

2.4

10

KYOC4251-6

YelOrng

611

17

120

25

200

10

5

-

2300

3760

2.0

2.4

10

KYOC4251-7

YelOrng

611

17

120

25

200

10

5

-

3060

3980

2.0

2.4

10
Specifications subject to change without notice. Dimensions are in mm +/- 0.3 mm unless otherwise stated. *Reversed polarity