What passive sensor you guys talking about?
If the EM of the adverse radar is detected, the system is able to get a very precise azimut and angle. The TV in the OSF point at it, and the laser give the distance. Now you have precise enough information to have a launch solution.
A test pilot told me that they are able to get in 3D a precise location of SAM radar, and it seems (but I never got official confirmation) that it works the exact same way in A2A.
IR sensor, in search mode, are not precise enough to get a hint in a range greater than approximately 30 nautique miles. But with the previous solution, you can catch a fire solution from a greater distance. But then, it is so far that the TV from OSF can only display to you that there is something, not exactly "what it is". So it depend then what are the rules you use before firing.
There are multiple ignorant peeps out here who thinks only rafale will save them from imminent PAF purchase of 5th gen vectors.. lol
Here french pilots themselves are saying it's impossible to fight 5th gen vectors..


check for urself below interview is in french.. translate it in google
There is lobbying in France too. I have published an article in a french magazine which I will resume.
Fights have been conducted with, at best, F3R version of Rafale
There is no tactics or special training against VLO aircraft. Which is normal, because we doesn't have ennemies which have such planes. At best, J20 and Su-57 are considered as LO, and not impossible to detect. Just, from a lower distance, but enough to use long range A2A weapon.
But there is a thing. If Rafale isn't able to fight with VLO aircrafts, VLO aircrafts can't eather. Because they use basically the same technologies of sensors (Radar and IRST).
So if a VLO aircraft wants to stay VLO, he will need to remain silent and not use his Radar. So once the Radar is used they take the big risk, with planes like Rafale in front of them, which have very good integrated and sensitive sensors, to be detected. And so their stealth goes to trash.
If the VLO airplanes rely on their own passive sensors, so the other planes can do the same.
The next 10 years in therms of tactics and sensors will be... Interesting.
If India choose to go with Rafale F5 with UCAV integrated in the combat system, so you will have the benefit of the VLO platform AND the benefit of a NOT STEALTH airplane, which come with lower price, lower cost per flight hour, geat number, etc.