Texas Instruments TL431AILPR, adjustable shunt voltage reference, ±1% tolerance, 100 mA cathode current, 2.495 V internal reference, TO-92-3 through-hole package, -40°C to 85°C operating temperature.
| Parameter | Value |
|---|---|
| Output type | Adjustable |
| Mounting | Through Hole |
| Reference type | Shunt |
| Voltage - output | 36 V |
| Voltage - output (Min (Fixed)) | 2.495V |
| Output current | 100 mA |
| Current - cathode | 700 µA |
| Operating temperature | -40°C~85°C(TA) |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Tolerance | ±1% |
| Case | TO-226-3, TO-92-3 (TO-226AA) Formed Leads |
The TL431AILPR: The ±1% tolerance on the internal reference means the output voltage at the regulation point will be within 1% of the programmed value without trimming.
The TO-92-3 package with formed leads is a through-hole part that survives hot-air rework without drama — the leads are thick enough to take a few desolder cycles without lifting the pad. The shunt topology means no bypass capacitor is required at the reference pin.
Both are adjustable shunt references in the TO-92-3 package. The AILPR also carries a tighter ±1% tolerance versus the standard ±2% on the ACLPR. If your board sees outdoor or factory-floor temperatures, the AILPR is the correct choice.