Description
Features
ISO
LINK
SCHEMATIC
PACKAGE OUTLINE
1. Measured between pins 1, 2 , 3 and 4 shorted together and pins 5, 6, 7 and 8 shorted together. TA = 25
°C and duration = 1 second.
2. Derate linearly to 125
°C free-air temperature at 0.67 mA / °C above 65°C.
3. For pulse width
≤ 1 µS, pulse repetition rate ≤ 300 pps.
4. Derate linearly to 125
°C free-air temperature at 3.0 mW / °C above 25 °C
NOTES:
OLF249
Radiation Tolerant
Phototransistor
Hermetic Surface Mount
Optocoupler
The OLF249 consists of a light emit-
ting diode optically coupled to a NPN silicon
phototransistor mounted in a 8-pin hermetic
surface mount flat pack package. The
leads can be formed to provide compliant
solder connections to the mounting sub-
strate. Electrical parameters are similar to
the JEDEC registered 4N49 optocoupler but
with much better CTR degradation charac-
teristics due to radiation exposure
Special electrical parametric selections
are availabe on request.
1
2
3
4
5
6
7
8
.015±.002
.050 BSC
.180 SQ. MAX
.200 MIN.
.004/.006
.100 MAX.
.030±.005
SEATING PLANE
1
2
6
7
CATHODE
ANODE
5
BASE
COLLECTOR
EMITTER
♦ Hermetic SMT package
♦ Compliant surface mounting leads
♦ High current transfer ratio
♦ Small package size
♦ High reliability and rugged construction
♦ Hi-rel screening available
♦ Radiation tolerant
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
