Hermetic Surface Mount Wide Bandwidth Optocoupler

The OLS303 is suitable for wide bandwidth analog applications. Each OLS303 has an LED and integrated photodiode transistor detector mounted and coupled in a custom hermetic surface mount Leadless Chip Carrier (LCC) ceramic package, that provides 1500 VDC of electrical isolation between the input and output. The integrated photodiode transistor improves the bandwidth by orders of magnitude as compared to standard phototransistors. The internal shield provides excellent commonmode immunity performance.

Device mounting is achieved with reflow soldering or conductive epoxies.


  • Electrical parameters guaranteed over –55 °C to +125 °C
  • ambient temperature range
  • 1500 VDC electrical isolation
  • High gain, 10 dB typical
  • Open collector output
  • High reliability and rugged construction
  • Similar to 6N135/136, 4N55 type optocouplers
  • Radiation tolerant
  • High reliability screenings are available
Data Sheets OLS303: Hermetic Surface Mount Wide Bandwidth Optocoupler OLS303_202342D.pdf (278 KB)
ProductName : OLS303
Memo : Wideband Analog Optocouplers.
Condition : TBD
CTR Min. : TBD
CTR Max. : TBD
Vcc Max. (V) : TBD
Propagation Delay : TBD
Isolation @ VDC 1 Sec. : TBD
Package Photo :
Package Info : 6-Lead Hermetic Ceramic LCC
Radiation Tolerant : Yes
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