RLS OnAxis RTB20 High-Resolution TMR Encoder Board (20 mm)
RLS · MPN RTB20 (configured) · Maglev ID ac-rls-rtb20
SI Maker in Slovenia, factory not confirmed unknown VERIFIED
Ø20 mm TMR on-axis encoder board with up to 18-bit incremental output and UVW commutation; a motor-side encoder for compact BLDC joint motors.
Specifications
| Resolution | incremental up to 18 bit, decimal to 260k CPR (incremental, not absolute) |
|---|---|
| Accuracy | typ. ±0.5°; no hysteresis |
| Max speed | 30,000 rpm (lower at highest resolutions) |
| Interface | Incremental ABZ RS422; UVW commutation (up to 256 pole pairs) |
| Form | on-axis module: Ø20 mm encoder board + magnet |
| Sensing | TMR |
| Supply | 5 V ±5 % |
| Bore / ring ID | n/a |
| Outer diameter | Ø20 mm |
| Operating temp | -40 °C to +105 °C (connector-limited) |
Who makes it
MakerRLS merilna tehnika d.o.o. (Renishaw associate)
Based inSlovenia
RoleBrand owner
Need a different shaft, connector, firmware or enclosure, or a price at 1,000 units? Maglev takes the catalog part to the factory and comes back with a custom version and one fixed price.
Landed cost in the US
CN
37.5%
TW
10%
VN
12.5%
IN
10%
JP
12.5%
KR
12.5%
DE
10%
MX
10%
US
0%
Total US duty on this part by where it is made (2026-10-29). Mexico shown before USMCA preference; qualifying goods enter duty free. Your factory choice, not the shipping port, sets the origin.
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Compliance
| HTS classification | 9031.80.80.85 typical, not a ruling |
|---|---|
| NDAA | unknown |
| Blue UAS | unknown |
| FCC | n/a |
Equivalents from other makers
Sources
- https://www.rls.si/eng/rtb20-high-resolution-magnetic-encoderspecs, image
- https://cdn.rls.si/media/documents/RTB20D01.pdfdatasheet: accuracy, hysteresis, resolution
Record confidence: VERIFIED. VERIFIED means the maker's own documents; REPORTED means a credible third party; UNVERIFIED means a single weak source. Anything we could not confirm says unknown.