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66228 Datasheet, PDF (1/2 Pages) Micropac Industries – Base lead eliminated for improved noise immunity
66228 3C91C TYPE PROTON RADIATION TOLERANT OPTOCOUPLER
09/22/2010
OPTOELECTRONIC PRODUCTS
DIVISION
Features:
Applications:
• High Reliability
• Base lead eliminated for improved noise immunity
• Rugged package
• Stability over wide temperature
• +500 V electrical isolation
• Eliminate ground loops
• Level shifting
• Line receiver
• Switching power supplies
• Motor control
DESCRIPTION
The 66228 optocoupler consists of an 850 nm GaAlAs LED optically coupled to a silicon planar phototransistor. This LED
has proven to be highly tolerant to proton radiation and to be more tolerant of operating temperatures over 100°C than the
more commonly used 660 nm LED. The optocoupler is built on a TO-72 header. The anode of the LED is electrically
connected to the case. The internal base connection has been eliminated for improved noise immunity.
ABSOLUTE MAXIMUM RATINGS
Emitter-Collector Voltage ....................................................................................................................................................... 7 V
Collector-Emitter Voltage ................................................................................................................................................... 60 V
Reverse Input Voltage .......................................................................................................................................................... 7 V
Input Diode Continuous Forward Current (Note 1) ......................................................................................................... 50 mA
Peak Forward Input Current (value applies for tw < 1µs, PRR < 300 pps) .....................................................................500 mA
Continuous Collector Current ........................................................................................................................................... 50 mA
Continuous Transistor Power Dissipation (Note 2) ....................................................................................................... 230 mW
Input to Output Isolation Voltage ..................................................................................................................................... 1000 V
Storage Temperature........................................................................................................................................-65°C to +150°C
Operating Free-Air Temperature Range .......................................................................................................... -55°C to +125°C
Lead Solder Temperature (10 seconds, 1/16” from case) .............................................................................................. 260°C
Notes:
1. Derate linearly to 125°C free-air temperature at the rate of 0.5 mA/°C.
2. Derate linearly to 125°C free-air temperature at the rate of 2.3 mW/°C.
Package Dimensions
Schematic Diagram
0.230 [5.84] 0.195 [4.95]
0.209 [5.31] 0.178 [4.52]
4 LEADS
0.019 [0.48]
0.016 [0.41]
0.210 [5.34]
0.170 [4.32]
0.500 [12.70]
MIN
ALL DIMENSIONS ARE IN INCHES [MILLIMETERS]
EMITTER
Ø0.100 [2.54]
3
2
4
1
COLLECTOR
CATHODE
45°
0.046 [1.17]
0.036 [0.91]
ANODE
A4
2C
0.048 [1.22]
0.028 [0.71]
K1
3E
ANODE ELECTRICALLY CONNECTED TO CASE.
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