Infrared Components

Ceramic Discrete Surface Mount Emitters and

Detectors

SME/SMD Series

Honeywell Sensing and Control

FEATURES

• Small package size

• Glass lensed optics for

efficient optical coupling

• Upright or inverted mounting

capability

• Low profile, small size for

flexible layout of multiple

channels and custom arrays

• Compatible with automated

solder processes:

- IR reflow

- vapor phase

- solder wave

- convection oven

• Choice of photodiode or

phototransistor detectors

• IRED features high power

dissipation capability

• Tape and reel packaging

option

− pick and place

machine compatible

APPLICATIONS

• Optical encoders for motion

control

• Computer peripherals

• Vending and point-of-sale

applications

• Smoke detectors

• Medical equipment

The SME2470, SMD2440 and SMD2420 Series surface mount

infrared components are small ceramic packages (0.15 x 0.10 x

0.083 in. / 3,81 x 2,54 x 2,1 mm) with glass lenses. The lens minimizes

cross talk and often eliminates the need for apertures in non-critical

applications. The low profile components may be mounted on the

printed circuit board, lens up or inverted, allowing flexibility in layouts for

multiple channel and custom arrays. When mounted lens down over a

hole in the PC board, the lens is hidden, lowering overall package

height.

The SME2470 is a high intensity aluminum gallium arsenide infrared

emitting diode (IRED) which can be used with either the SMD2440

phototransistor or the SMD2420 photodiode. It supplies optimum optical

characteristics and efficient optical coupling. The small size and high

power dissipation properties of the IRED promote PC board

miniaturization and high density placement.

The SMD2440 Series phototransistor’s gain characteristics make it

useful for applications requiring high responsivity. The SMD2420 Series

photodiode is especially useful in applications requiring linear response

or high switching speed.

These components are available in bulk, or on tape and reel for use

with automatic placement equipment.