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
66223
RADIATION TOLERANT OPTOCOUPLER
09/11/03
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
< 1s, 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
0.365 [9.27]
0.355 [9.02]
0.328 [8.33]
0.318 [8.08]
0.172 [4.37]
0.162 [4.11]
0.500 [12.70]
MIN
0.040 [1.02]
MAX
0.039 [0.99]
0.029 [0.74]
0.036 [0.91]
0.026 [0.66]
45°
0.200
[5.08]
6 LEADS
0.019 [0.48]
0.016 [0.41]
7
3
5
6
1
2
ALL DIMENSIONS ARE IN INCHES [MILLIMETERS]
K 7
A 5
2 B
1 E
3 C
MICROPAC
OPTOELECTRONIC PRODUCTS
DIVISION