PHOTODIODE

InGaAs PIN photodiode

Long wavelength type

G8421/G8371/G5851 series

Features

l Long cut-off wavelength: 1.9 µm

l 3-pin TO-18 package: low price

l Thermoelectrically cooled TO-18 package: low dark current

l Active area: φ0.3 to φ3 mm

Applications

l Optical power meter

l Gas analyzer

l NIR (near infrared) photometry

I Specifications / Absolute maximum ratings

Absolute maximum ratings

Active

area

Thermistor

power

dissipation

TE-cooler

allowable

current

Reverse

voltage

Operating

temperature

Topr

Storage

temperature

Tstg

Type No.

Dimensional

outline/

Window

material

Package

Cooling

(mm)

(mW)

(A)

(V)

(°C)

(°C)

G8421-03

f0.3

G8421-05

f0.5

G8371-01

➀

TO-18

f1

G8371-03

➁

TO-5

Non-cooled

f3

-

-

-40 to +85 -55 to +125

G5851-103

f0.3

G5851-11

f1

G5851-13

➂

TO-8

One-stage

TE-cooled

f3

1.5

G5851-203

f0.3

G5851-21

f1

G5851-23

➃

TO-8

Two-stage

TE-cooled

f3

0.2

1.0

2

-40 to +70

-55 to +85

I Electrical and optical characteristics (Typ. unless otherwise noted)

Measurement

Condition

Element

temperature

Spectral

response

range

l

Peak

sensitivity

wavelength

lp

Photo

sensitivity

S

l=lp

Dark current

Cut-off

frequency

fc

Terminal

capacitance

Ct

f=1 MHz

Shunt

resistance

Rsh

D*

l=lp

NEP

l=lp

Type No.

(°C)

(µm)

(µm)

(A/W)

Typ.

(nA)

Max.

(nA)

-3 dB

(MHz)

(pF)

(MW)

G8421-03

30

300

100

8

1.5

G8421-05

50

500

80

20

1

G8371-01

100

1000

40

80

0.5

G8371-03

25

0.9 to 1.9

2000 20000

3

800

0.05

G5851-103

3

30

100

8

15

G5851-11

10

100

40

80

5

G5851-13

-10

0.9 to 1.87

200

2000

3

800

0.5

G5851-203

1.5

15

100

8

35

G5851-21

5

50

40

80

10

G5851-23

-20

0.9 to 1.85

1.75

1.1

100

1000

3

800

1

1