Lonsdor LT20-04NJ Universal Smart Remote PCB 40 / 80 Bit & 8A for Toyota / Lexus 4 Buttons 433 / 315 MHz

This is a replacement or universal smart key remote PCB (printed circuit board) designed for use with many Toyota and Lexus vehicles. It’s the internal component used in smart key remotes/key fobs — the part that contains the buttons, transponder/chip and radio frequency electronics that communicate with the car’s immobilizer and remote locking system.

Key Features

• Buttons: 4 (lock, unlock, trunk, panic) — standard layout for many Toyota/Lexus remotes.

• Transponder Chip: 40–80 bit 8A switchable chip — supports both 40-bit and 80-bit transponder protocols used by many Toyota/Lexus smart keys.

• Frequencies: Works on 433 MHz and 314/315 MHz bands (frequency switchable), covering the common RF ranges used in Toyota/Lexus remotes worldwide.

• Type: PCB-only (no housing or shell included) — meant to be installed/replaced inside a key shell or remote case.

• Battery: Uses a CR2032 coin cell (not always included with purchase).

• Reusable/New: New PCB, but can be generated and reprogrammed by a key programmer tool (e.g., Lonsdor K518ISE or KH100+).

• Compatibility: Designed for Toyota / Lexus smart keys; often requires key-generation devices to program to a vehicle.