Hermetically Sealed, Low IF, Wide Vcc, High Gain Optocouplers

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The 6N140A/883B is a high reliability Class H four channel hermetically sealed optocoupler in a 16-Pin DIP ceramic package. Gold plated leads, solder dipped leads and various lead form options are also available. See datasheet for details.

The product is capable of operation and storage over the full military temp range and may also be purchased as either commercial grade, with full MIL-PRF-38534 Class K level testing, or from the appropriate DLA SMD (83024 for Class H, 5962-98002 for Class K). The 6N140A/883B is manufactured and tested on a MIL-PRF-38534 certified line and included in the DLA Qualified Manufacturers List QML-38534 for Hybrid Microcircuits.

Each channel contains a GaAsP light emitting diode which is optically coupled to an integrated high gain photon detector. The high gain output stage features an open collector output providing both lower saturation voltage and higher signaling speed than possible with conventional photo-Darlington optocouplers. The shallow depth and small junctions offered by the IC process provides better radiation immunity than conventional photo transistor optocouplers.

The supply voltage can be operated as low as 2.0 V without adversely affecting the parametric performance. These devices have a 300% minimum CTR at an input current of only 0.5 mA making them ideal for use in low input current applications such as MOS, CMOS, low power logic interfaces or line receivers. Compatibility with high voltage CMOS logic systems is assured by specifying Icch and Ioh at 18 Volts.

Package styles for this die set with one, two or four channels are 8 and 16-Pin DIP through hole, 16-Pin surface mount DIP flat pack, and 20 pad leadless ceramic chip carrier. Most devices may be purchased with a variety of lead forms and plating options. See datasheet for details.

Because the same electrical die (emitters and detectors) are used for each channel of each device listed in the datasheet, absolute maximum ratings, recommended operating conditions, electrical specifications, and performance characteristics shown in the datasheet figures are virtually identical for all parts. Occasional exceptions exist due to package variations and limitations and are as noted. Additionally, the same package assembly processes and materials are used in all devices. These similarities give justification for the use of data obtained from one part to represent other parts performance for reliability and certain limited radiation test results.


  • High reliability, four channel, 16-Pin DIP
  • Dual marked with device part number and DLA Standard Microcircuit Drawing
  • Performance guaranteed from -55ºC to 125ºC
  • MIL-PRF-38534 Class H, QML-38534
  • High radiation immunity
  • Reliability data
  • MIL-PRF-38534 Class K available
  • Five hermetically sealed package configurations 
  • One and two channel devices (different packages)
  • Low input current requirement: 0.5 mA
  • High current transfer ratio: 1500% typical @ IF = 0.5 mA
  • Low output saturation voltage: 0.11 V typical
  • 1500 Vdc withstand test voltage


  • Military and aerospace
  • High reliability systems
  • Microprocessor system interface
  • Transportation, medical, and life critical systems
  • Isolated input line receiver
  • EIA RS-232-C line receiver
  • Voltage level shifting
  • Isolated input line receiver
  • Isolated output line driver
  • Logic ground isolation
  • Harsh industrial environments
  • Current loop receiver
  • System test equipment isolation
  • Process control input/output isolation

Lifecycle Status


Specification Value
Lifecycle Active
Distrib. Inventory Yes
CTR Min. (%) 300.0
CMR (min.) (V/µs) 1000.0
Package Hermetic 16 Pin DIP
Product Type Hermetic High Gain
Reliability Class MIL-PRF-38534 Class H
VDD2 (V) 2.0
Prop Delay (tPHL) Max. (µs) 100 µs
Prop Delay (tPLH) Max. (µs) 60 µs
IF Min. (mA) 0.5 mA
Application Note3 i
Data Sheet1 i
Product Change Notice (PCN)5 i
Regulatory Certificate2 i
Specification1 i
White Papers1 i
Selection Guide1 i