Infrared Components

Ceramic Discrete Surface Mount

SME/SMD Series

6 Honeywell

• Sensing and Control

For application help: call 1-800-537-6945

TYPICAL SMD2440 AND SMD2420 SERIES PERFORMANCE CHARACTERISTICS (when solder

mounted to PC board)

SME to SMD Coupling Characteristics

100%

80%

60%

40%

20%

0%

0

0.1

0.2

0.3

0.4

0.5

0.6

Lens-to Lens Separation - inches

SMD2440 Switching Time Test Circuit

250 uS

GaAs Emitter

Collector

Emitter

+

-

RL

1000

e

0

Vcc +5 V

SMD2440 Switching Waveform

e

0

1.0 V

90%

10%

0 V

t

t r

t r

SMD2420 Switching Time Test Circuit

10 uS

GaAs Emitter

Cathode

Anode

+

-

RL

50

e

0

SMD2420 Switching Waveform

e

0

100%

90%

10%

0%

t

t r

t r