OLS049

Radiation Tolerant, Phototransistor Hermetic Surface Mount Optocoupler


The OLS049 is specifically designed for high-reliability applications that require optical isolation in radiation environments such as gamma, neutron, and proton radiation with a high current transfer ratio (CTR) and low saturation VCE. Each optocoupler consists of an LED and N-P-N silicon phototransistor that is electrically isolated, but optically coupled inside a hermetic, 4-pin leadless chip carrier (LCC) package.

Electrical parameters are similar to the JEDEC registered 4N49U optocoupler, but with better CTR degradation characteristics due to radiation exposure. The OLS049 has 100 percent high reliability screened parts available.

The device mounting for the OLS049 is achieved with reflow soldering or conductive epoxies.

Specifications

Product LifecycleIn Production
Memo
ConditionCTR @ IF = 1 mA
CTR Min.200
CTR Max.1200
BVCEO (V)60
Vcc Max. (V)
Switching Time (μs)25
Isolation @ VDC 1 Sec.1000
Package Photo
Package Info4-Lead Hermetic Ceramic LCC
Radiation TolerantYes
No Base ConnectionYes

Features

  • Miniature hermetic surface mount package
  • Radiation tolerant
  • High CTR guaranteed over –55 °C to +125 °C ambient temperature range
  • 1000 VDC electrical isolation
  • High reliability screening is available

Product Documents

Applications

Avionics

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Biomedical Materials

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Surveillance Systems

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Specialty Medical Applications

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Communications

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Instrumentation

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Space

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