STS-8857 Silonex, STS-8857 Datasheet

STS-8857

Manufacturer Part Number

STS-8857

Description

Transmissive Switch Assembly

Manufacturer

Silonex

Datasheet

1.STS-8857.pdf (1 pages)

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Features

Description

The STS-8857 consists of an infrared emitting diode

and an NPN silicon phototransistor mounted on

opposite sides of a 3.8 mm wide slot. Phototransistor

switching takes place whenever an opaque object

passes through the slot. The polysulfone housing (2)

reduces interference from ambient light and provides

dirt and dust protection. The 40 cm minimum length

wires simplify the connection to the PC board.

Absolute Maximum Ratings

Operating & Storage Temperature

Input Diode

Reverse Voltage

Continuous Forward Current

Peak Forward Current (1 s pulse)

Power Dissipation (1)

Phototransistor

Collector-Emitter Voltage

Emitter-Collector Voltage

Power Dissipation (1)

Electrical Characteristics

Input Diode

Output Phototransistor

Coupled

Specifications subject to change without notice

5200 St. Patrick St., Montreal

Que., H4E 4N9, Canada

Tel: 514-768-8000

Fax: 514-768-8889

QF-84

Symbol

Non contact switching

Three wires for electrical connection

Fast switching speed

CE(SAT)

C(ON)

CEO

ECO

Forward Voltage

Reverse Current

Collector Dark Current

Collector-Emitter Breakdown Voltage

Emitter-Collector Breakdown Voltage

Collector Emitter Saturation Voltage

On-State Collector Current

Parameter

=25 C unless otherwise noted)

-40 C to +85 C

100 mW

50 mA

30 V

3 V

3 A

5 V

Min Typ Max

1.5

Notes:

(1) Derate linearly 1.33 mW/ C above 25 C.

(2) Plastic housing is soluble in chlorinated

1.2

18.3

hydrocarbons and ketones. Recommended

cleaning agents are methanol or isopropanol.

Wires are omitted

6.3

3.8

Brown

100

for clarity

1.7

0.4

7.6

15.5

Units

Transmissive Switch Assembly

Ulverston, Cumbria, LA12 7NQ, UK

3.8

9.0

=100 A, Ee=0

=100 A, I

= 20 mA

Schematic

Wire

= 3 V

=10V, Ee=0

=10V, I

The Old Railway, Princes Street

14.5

Test Conditions

3.4

Dimensions in mm. (-/+ 0.12)

= 20 mA

STS-8857

Tel: 01 229 581 551

Fax: 01 229 581 554

Optical center-line

Black

Red

11.7

103057 REV 1

3.3

18.3

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