$3.37
In Stock
Genuine · New
Texas Instruments TRPWS21 128-Bit Transponder Chip
Texas Instruments TRPWS21 in a carbon wedge · 128-bit DST-AES · supplied converted to Toyota H, the chip many tools read as 8A · learned to the car with an H-capable programmer
Toyota H
Converted
128-bit
DST-AES
Wedge
Carbon body
125 kHz
Passive, no battery
⭐ This is the Texas Instruments TRPWS21, the 128-bit chip of Toyota H keys, supplied already converted to Toyota H so no image has to be generated on the bench before fitting. The wedge is marked WS21-00, as the photos show. It goes into the key head and is learned to the car with a key programmer that supports Toyota H (8A) keys.
⚙️ Key features
Texas TRPWS21
The Texas Instruments transponder that Toyota H keys are built on.
Converted to Toyota H
Supplied in the Toyota H state, so no image generation is needed before fitting.
128-bit DST-AES
The crypto of Toyota H keys, read as 8A by many tools.
Carbon wedge
Marked WS21-00, for Toyota key heads built for H chips.
💎 Benefits
One step less per key
No bench conversion before the chip goes into the key head.
Texas silicon
The maker's own chip in the key.
Usual learning route
Learned on the H-capable programmers shops already run.
Chip only
Cheaper than a complete key when the head and blade are fine.
👥 Who it's for
Automotive locksmiths
Toyota and Scion H transponder keys.
Key programmers
Shops adding Toyota H keys over the diagnostic port.
Key cutting counters
Chip replacement in customers' existing H key heads.
🚗 Compatible vehicles
Read the customer's key first: Toyota cars of the same years use G or H keys, and only an H car learns this chip.
