English
Language : 

66223 Datasheet, PDF (1/2 Pages) Micropac Industries – Base lead provided for conventional transistor biasing
66223
09/11/03
RADIATION TOLERANT OPTOCOUPLER
MICROPAC
OPTOELECTRONIC PRODUCTS
DIVISION
Features:
• Meets or exceeds MIL-PRF-19500 radiation
requirements
• High Reliability
• Base lead provided for conventional transistor
biasing
• Rugged package
• Stability over wide temperature
• +1000V electrical isolation
Applications:
• Eliminate ground loops
• Level shifting
• Line receiver
• Switching power supplies
• Motor control
DESCRIPTION
The 66223 optocoupler consists of an 850 nm GaAlAs LED optically coupled to a photodiode detector driving a radiation
tolerant transistor. Test studies have proven this configuration to be even more tolerant to both proton and total dose
radiation than configurations using a 660 nm LED. The 66223 optocoupler is packaged in a hermetically sealed TO-5 and
is a pin for pin replacement for the 4N49. This device can be supplied to customer specifications as well as tested in
accordance with MIL-PRF-19500/548.
ABSOLUTE MAXIMUM RATINGS
Input to Output Voltage ........................................................................................................................................................+1 kV
Emitter-Base Voltage ...............................................................................................................................................................4 V
Collector-Emitter Voltage ......................................................................................................................................................40 V
Collector-Base Voltage ..........................................................................................................................................................40 V
Reverse Input Voltage ............................................................................................................................................................3 V
Input Diode Continuous Forward Current (Note 1) ............................................................................................................50 mA
Peak Forward Input Current (Value applies for tw < 1µs, PRR < 300 pps) ............................................................................1 A
Continuous Collector Current .............................................................................................................................................50 mA
Continuous Transistor Power Dissipation (Note 2) ........................................................................................................ 300 mW
Storage Temperature......................................................................................................................................... -65°C to +125°C
Operating Free-Air Temperature Range............................................................................................................ -55°C to +125°C
Lead Solder Temperature (10 seconds, 1/16” from case) ................................................................................................. 240°C
Notes:
1. Derate linearly to 125°C free-air temperature at the rate of 0.5 mA/°C above 65°C.
2. Derate linearly to 125°C free-air temperature at the rate of 3 mW/°C.
Package Dimensions
Schematic Diagram
0.172 [4.37]
0.162 [4.11]
0.040 [1.02]
45°
MAX
0.036 [0.91]
0.026 [0.66]
0.039 [0.99]
0.029 [0.74]
0.328 [8.33]
0.318 [8.08]
0.500 [12.70]
MIN
0.365 [9.27]
0.355 [9.02]
Ø0.200
[5.08]
6 LEADS
Ø0.019 [0.48]
Ø0.016 [0.41]
1
7
2
6
3
5
ALL DIMENSIONS ARE IN INCHES [MILLIMETERS]
A5
K7
3C
1E
2B
MICROPAC INDUSTRIES, INC. OPTOELECTRONIC PRODUCTS DIVISION • 725 E.Walnut St., Garland, TX 75040 • (972)272-3571 • Fax (972)487-6918
www.micropac.com E-MAIL: OPTOSALES @ MICROPAC.COM