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ST-325

Photo transistors

KODENSHI

The ST–325 is a high–sensitivity NPN silicon

phototransistor mounted in a red low profile side–

viewing package. This phototransistor is both ultra–

compact and easy to mount.

FEATURES

•Side–viewering plastic package

•Ultra– Compact / Low–profile package

APPLICATIONS

•Photointerrupters

•Tape–end sensors

•Optical switches

DIMENSIONS

(Unit : mm)

Rating

Symbol

Item

MAXIMUM RATINGS

C-E voltage

E-C voltage

Collector current

Collector power dissipation

Operating temp.

Storage Temp.

Topr.

Tstg.

Tsol.

30

5

20

75

-25~+85

-30~+85

260

V

V

mA

mW

℃

℃

℃

Unit

(Ta=25℃)

(Ta=25℃)

ELECTRO-OPTICAL CHARACTERISTICS

Item

Typ.

0.2

3.2

4.8

500~1,050

880

±60

Collector dark current

Light current

C-E saturation voltage

Switching speeds

Rise time

Fall time

Spectral sensitivity

Peak wavelength

Half angle

tr

tf

λ

λp

△θ

0.4

100

0.4

nA

mA

V

μsec.

μsec.

nm

nm

deg.

Symbol

Conditions

Min.

Max.

Unit.

*1.For MAX.5 seconds at the position of 2 mm from the package

*2. Color temp.=2856K standard Tungsten lamp