Difference between the Microchip TR and T5 suffix

What is the difference between Microchip MIC23451-AAAYFL-TR and MIC23451-AAAYFL-T5?

The TR and T5 are packaging codes.

T = Tape & Reel packaging
R = 5000 piece reel
5 = 500 piece reel

With the different suffix, they are the exact same parts, just a different sized reel.

We stock the 500 piece reels, and you can order smaller quantities using the Digi-Key part number 576-4355-1-ND