ISOCOM LTD: BSI9000 and CECC20000 Approved Manufacturer

Hutton Close, Crowther Ind Est, Washington, Tyne & Wear NE38 0AH, England
Email: enquiry@isocomoptocouplers.com - Tel: +44 (0)191 4166546 - Fax: +44 (0)191 4155055

Circuit
Features
Description
Absolute Maximum Ratings
Electrical Characteristics

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IS149, IS703A, IS708A
REFLECTIVE OBJECT SENSOR

Circuit

IS149
IS703A
IS708A

Features

Phototransistor Output.
High Sensitivity.
Low Cost Plastic Housing.
Lensed For Dust Protection And Ambient Light Filtration.

Description

The IS149, IS703A and IS708A each consist of a Gallium Arsenide infrared emitting diode and an NPN silicon phototransistor mounted side-by-side on converging optical axes, in a black plastic housing. A filtering lens in the face of the housing seals the device from dust and dirt and reduces ambiant light noise. The photosensor responds to radiation from the LED only when a reflective object passes within its field of view.
All electrical parameters are 100% tested by manufacturing. Specifications are guaranteed to a cumulative 0.65% AQL.

Absolute Maximum Ratings (Ta=25°C)

Storage Temperature:
Operating Temperature:
Lead Soldering:
-40°C to +80°C
-40°C to +80°C
240°C for 5s, 1.6mm from case (note 2)

Input Diode

Forward DC Current:
Reverse DC Voltage:
Power Dissipation:
40mA (note 3)
3V
70mW (note 4)

Output Phototransistor

Collector-Emitter Voltage:
Emitter-Collector Voltage:
Power Dissipation:
30V
5V
50mW (note 3)

Electro-optical Characteristics: (Ta=25°C)

INPUT DIODE PARAMETER CONDITIONS MIN TYP MAX UNIT
VF Forward Current IF=40mA

1.7 V
IR Reverse Current VR=3V

100 µA
OUTPUT PHOTOTRANSISTOR
V(BR) CEO Collector-Emitter Breakdown Voltage IC=100µA 30

V
V(BR) ECO Emitter-Collector Breakdown Voltage IE=100µA 5

V
ICEO Collector Dark Current VCE=10V, IF=0, EE=0.1µ W/cm sq

100 nA
COMBINED PARAMETER CONDITIONS MIN TYP MAX UNIT
IC (ON) On-State Collector Current IF=40mA, VCE=5V, d=0.20in, (5.08mm; notes 4,5) 200

µA
IF=40mA, VCE=5V, d=0.20in, (5.08mm; notes 4,6)

35 µA

Notes

1. RMA flux is recommended. Duration can be extended to 10s max. when flow soldering.
2. Derate linearly 1.27mW/°C above 25°C
3.Derate linearly 0.91mW/°C above 25°C
4. d is the distancefrom the assembly face to the reflective surface.
5. Measured using an Eastman Kodak neutral white test card having 90% diffuse reflectance as a feflecting surface
6. Measured using 3M Tape #476 for a reflecting surface. 3M Tape #467 has a very black dull surface with optical reflective qualities comparable to a surface coated with carbon black printers ink.
7. Lower curve is based on a calculated worst case condition rather than the conventional - 2 O limit.

Isocom takes great effort to ensure accurate data, but regrettably cannot be held liable for any error on its website. Visit File Lists to confirm old printouts are up-to-date.

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