OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006

Phone: (972) 323-2200 or (800) 341-4747

FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com

Issue A .3

04/07

Page 3 of 7

Slotted Optical Switch

OPB820, OPB821Z, OPB821S

Z

OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.

SYMBOL

PARAMETER

MIN

TYP

MAX

UNITS

TEST CONDITIONS

Input Diode (See OP245 for additional information)

Forward Voltage

-

-

1.7

V

Reverse Current

-

-

100

µA

Output Phototransistor (See OP555 for additional information)

Collector-Emitter Breakdown Voltage

30

-

-

V

Emitter-Collector Breakdown Voltage

5

-

-

V

Collector-Emitter Dark Current

-

-

100

nA

Coupled

Collector-Emitter Saturation Voltage

OPB820, OPB821

OPB820S3, OPB821S3

OPB820S5, OPB821S5

OPB820S10, OPB821S10

-

-

-

-

-

-

-

-

0.4

0.4

0.4

0.4

V

V

V

V

On-State Collector Current

OPB820, OPB821

OPB820S3, OPB821S3

OPB820S5, OPB821S5

OPB820S10, OPB821S10

500

60

300

400

-

-

-

-

-

-

-

-

µA

µA

µA

µA

Storage and Operating Temperature

-40°C to +85°C

Lead Soldering Temperature (1/16 inch [1.6 mm] from case for 5 seconds with soldering iron)

(1)

260°C

Input Diode

Continuous Forward Current

50 mA

Peak Forward Current (1µs pulse width, 300 pps)

3 A

Reverse Voltage

2 V

Power Dissipation

(2)

100 mW

Output Phototransistor

Collector-Emitter Voltage

30 V

Emitter-Collector Voltage

5 V

Power Dissipation

(2)

100 mW

Notes:

(1)

RMA flux is recommended. Duration can be extended to 10 seconds maximum when flow soldering.

(2)

For OPB820, derate linearly 1.67 mW/° C above 25° C. For OPB821, derate linearly 1.82 mW/° C above 25° C.

(3)

Methanol or isopropanol are recommended as cleaning agents. Plastic housing is soluble in chlorinated hydrocarbons and

ketones.

(4)

All parameters were tested using pulse technique.