35mm Single-Turn Multi-Turn Absolute Encoder - Rs485 17-23 Bit

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High-reliability, high-resolution absolute encoders available in 35mm outer diameter with 6mm, 8mm straight or 9mm conical shaft options. Single-turn (RZ35A) and multi-turn (RZ35D06) variants available. The RZ35D06 features a battery-backed 16-bit multi-turn counter for power-off position retention. All models feature RS485 serial communication at 2.5MHz baud rate with selectable 17-bit or 23-bit single-turn resolution. Designed as alternative solutions for applications using Tamagawa SA35 or similar form-factor absolute encoders.

RZ35 series single turn absolute encoder

Quick Select: RZ35A · RZ35D06 · Full Specs · Cross-Reference · FAQ

RZ35 Series Absolute Encoder Model Comparison — RZ35A vs RZ35D06

Parameter	RZ35A	RZ35D06
Outer Diameter	35 mm
Shaft Bore Options	8mm straight / 9mm conical	6mm
Type	Single-Turn absolute	Multi-Turn absolute + 16-bit
Resolution	17-bit / 23-bit selectable
Interface	RS485 2.5MHz
Supply Voltage	Single 5V DC
Ingress Protection	IP40
Max Speed	6,000 rpm
Power-Off Memory	—	✓ 16-bit battery-backed
Details	↓ View	↓ View

Note: 8mm straight shaft and 9mm conical shaft are only available on RZ35A.

[USES] Uses:

This product is mainly used for servo-driven control systems. It provides feedback information and auxiliary signals required by accurate position and speed control units for the system.

[FEATURES] RZ35 Series Absolute Encoder Features & Specifications

•

Working Temperature: -20 ℃ ~ +105 ℃

•

Current Consumption: < 100mA

•

Battery Voltage: 3.6V DC

•

Battery Warning Voltage: 3.1V

•

Battery Fault Voltage: 2.5V

•

Signal Output: Differential output

•

Power Supply: Single 5V Supply

•

Rise/Fall Time: Around 100ns

•

Insulation Resistance: 50MΩ

RZ35 Series Technical Specifications — 17-Bit 23-Bit RS485 IP40

Parameter	Specification
Resolution	131,072 (17-bit) / 8,388,608 (23-bit)
Multi-Turn (RZ35D06 only)	16-bit multi-turn counter (65,536 turns, battery-backed)
Absolute Positioning Accuracy	< ±50 arc-seconds (depends on motor & assembly fit)
Repeatability Accuracy	< ±3 arc-seconds (depends on motor & assembly fit)
Interface Protocol	RS485
Baud Rate	2.5 MHz \| Communication frequency ≤ 16K\| Communication frequency ≤ 16K
Allowable Shaft Deviation	Dip Angle: 0.1° / Axial Endplay: <0.1mm / Radial Runout: <0.01mm
Max Operating Speed	6,000 rpm
Moment of Inertia	0.21 kg·mm²
Rotor Angular Acceleration	Powered: ≤80,000 rad/s² / Battery: ≤4,000 rad/s²
Battery Voltage	3.6V DC (Warning: 3.1V / Fault: 2.5V)
Mechanical Shock	980 m/s² (100G), 11ms, 3 times per XYZ direction (18 total)
Vibration	10-55Hz 1.5mm / 55-2000Hz 98 m/s² / 2h per axis (6h total)
Operating Temperature	-20 °C to +105 °C
Relative Humidity	≤90% (40°C/21d, EN 60068-2-78, non-condensing)
Ingress Protection	IP40
Current Consumption	< 100mA
Rise/Fall Time	Around 100ns
Insulation Resistance	50 MΩ

RZ35 Series Mounting Accessories — Leaf Spring Brackets for Servo Motors

EPOCH supplies rigid leaf spring options to adapt to diverse servo motor shell geometries. Note: Select leaf spring according to motor face dimensions.

MP4131-704R (BM Type-Medium Profile with ‌⌀31 Mounting Holes) Leaf Spring Mechanical Drawing

MP4131-704R (BM Type-Medium Profile with‌⌀31 Mounting Holes) Leaf Spring Mechanical Drawing

MP2831-704R (BL Type-Low Profile with ‌⌀31 Mounting Holes) Leaf Spring Mechanical Drawing

MP1631-704R (BP Type-Flat Profile with ‌⌀31 Mounting Holes) Leaf Spring Mechanical Drawing

MP4140-704R (CM Type-Standard Profile with ‌⌀40 Mounting Holes) Leaf Spring Mechanical Drawing

MP2840-704R (CL Type-Low Profile with ‌⌀40 Mounting Holes) Leaf Spring Mechanical Drawing

Bracket Reference	Type	Application
MP4131-704R	BM Type	Medium profile, Ø31 mounting holes
MP2831-704R	BL Type	Low profile, Ø31 mounting holes
MP1631-704R	BP Type	Flat profile, Ø31 mounting holes
MP4140-704R	CM Type	Standard profile, Ø40 mounting holes
MP2840-704R	CL Type	Low profile, Ø40 mounting holes

Single-Turn

RZ35A — 35mm Single-Turn Absolute Encoder

8mm straight / 9mm conical shaft · 17/23-bit · RS485 2.5MHz · single-turn absolute

Key Dimensions:

OD 35.0 mm | 6mm shaft bore| 8mm straight or 9mm conical shaft bore (selectable)| 8mm straight or 9mm conical shaft bore (selectable)

RZ35A08 — 8mm Straight Shaft Version

RZ35A09 — 9mm Conical Shaft Version

Multi-Turn

RZ35D06 — 35mm Multi-Turn Absolute Encoder with Power-Loss Memory

6mm shaft bore · 17/23-bit + 16-bit multi-turn · RS485 2.5MHz · battery-backed position retention

Key Dimensions:

OD 35.0 mm | 6mm shaft bore

[RZ35D06 dimension drawing — additional views awaiting upload]

Cross-Referencing & Sourcing Retrofit Guides — 35mm Absolute Encoder Replacement Reference

The EPOCH RZ35 Series absolute encoders are designed as physical and electrical alternatives for a range of industry-standard absolute encoder applications. The RZ35A single-turn variant shares a similar 35mm form factor with the Tamagawa SA35 series, while the RZ35D06 multi-turn variant provides a battery-backed absolute position alternative in the same compact footprint. Both models offer comparable 17-23bit resolution with RS485 2.5MHz communication. For applications originally using Heidenhain or SSI-based absolute encoders, please contact our team for protocol compatibility evaluation. Engineers should verify shaft bore dimensions, mounting bolt patterns, and single-turn vs. multi-turn requirements before specifying. Contact our engineering team for detailed fitment comparisons.

⚠️ Trademark & Interchangeability Safety Notice:

All OEM corporate marks, trademarks, and specific part model definitions referenced across these indices are physical properties of their respective corporate registration holders.
EPOCH is a fully independent absolute encoder manufacturer. We hold no licensing links or partnerships with any named trademark owners.
Engineers should verify shaft bore dimensions, RS485 communication protocols, single-turn vs. multi-turn requirements, and lead-out wire configurations before cross-referencing.

Sourcing Queries & Interchange Cross Indexes

Primary Index Classification: RZ35 Series absolute encoder ｜ RZ35A ｜ RZ35D06 ｜ 35mm absolute encoder ｜ 35mm single-turn absolute encoder ｜ 35mm multi-turn absolute encoder

Verified Sourcing Modifiers & Classifiers: single-turn absolute encoder ｜ multi-turn absolute encoder ｜ RS485 absolute encoder ｜ 17-bit encoder ｜ 23-bit encoder ｜ battery-backed absolute encoder ｜ servo motor feedback encoder ｜ compact 35mm absolute encoder

Interchange Cross-Reference Index: Tamagawa SA35 alternative ｜ SA35 compatible absolute encoder ｜ Heidenhain absolute encoder alternative ｜ 35mm servo encoder replacement ｜ RS485 absolute encoder alternative ｜ single-turn encoder replacement ｜ multi-turn absolute encoder replacement

Cable Definitions — 8-Pin Connection (RZ35 Series)

Pin	1	2	3	4	5	6	7	8
Signal	5V	GND	485+	485-	Battery +	Battery GND	NC	PE
Cable Color	Red	Black	Blue	Yellow	Brown	White	—	Shield

RZ35 Series Ordering Code — Part Number Configuration Guide

RZ35

Series

35mm Absolute

A·D

Model

A / D

06·08·09

Shaft Ø

06/08/09

17·23

Resolution

17/23-bit

T·S·B

Interface

T / S / B

Voltage

DC 5V

G·C

Output

G / C

Example Part Numbers

RZ35A08 17 T 5V G

RZ35A + 8mm straight shaft + 17-bit + RS485 + 5V + Cable output

RZ35D06 23 T 5V G

RZ35D06 + 23-bit + RS485 + 5V + Cable output

Model Variant

A — Single-Turn (RZ35A)

D — Multi-Turn (RZ35D06, 16-bit)

Shaft & Interface

06 — 6mm 08 — 8mm straight 09 — 9mm conical

* 08/09 available on RZ35A only

T — RS485 S — SSI* B — BISS*

Resolution & Output

17 — 17-bit (131,072 steps) 23 — 23-bit (8,388,608)

G — Cable output C — Connector

* Protocols marked with asterisk can be customized. Contact EPOCH sales for custom ordering configurations.

Technical Absolute FAQs — 35mm Sourcing Guide

Explore standard queries regarding the EPOCH RZ35 Series absolute encoder family:

Q: Is the RZ35A a single-turn or multi-turn absolute encoder?

The RZ35A is a single-turn absolute encoder with selectable 17-bit or 23-bit resolution. The RZ35D06 is a multi-turn absolute encoder with the same single-turn resolution plus a 16-bit battery-backed multi-turn counter for power-off position retention.

Q: Is the RZ35 Series compatible with the Tamagawa SA35 series?

The RZ35 Series shares a similar 35mm outer diameter form factor with the Tamagawa SA35 series. Similarities: 35mm OD, 17-23-bit resolution, RS485 communication. Key differences to verify: Shaft bore type (6mm/8mm straight vs. 9mm conical), single-turn vs. multi-turn configuration. Please verify all mechanical and electrical parameters before integration. Contact our engineers for application-specific fitment evaluation.

Q: What resolution options does the RZ35 Series offer — 17-bit or 23-bit?

Both RZ35A and RZ35D06 support selectable 17-bit (131,072 steps/rev) or 23-bit (8,388,608 steps/rev) single-turn resolution. RZ35D06 adds 16-bit multi-turn tracking.

B2B Global Absolute RFQ Sourcing

Request an Absolute Quote

Need custom resolution bits (17-bit / 23-bit), specialized connector harnesses, or bulk contract evaluations? Send your requirements to our direct sales dispatch channels.

Request Direct Sourcing Evaluation Info →

Sales Office: liya@epoch-electronic.com. Include desired resolution bits (17/23), shaft size, application speed and annual volumes.

Legal Disclaimer & Trademark Attribution: All manufacturer names, symbols, series, and descriptions used in this document are for nominal cross-compatibility indexation, cross-referencing, and market application identification purposes only. There is no implied affiliation, authorization, sponsorship, or factory endorsement between EPOCH and any original equipment manufacturers (OEM). All aftermarket products supplied by EPOCH are manufactured under independent specifications to serve as high-quality physical and electrical compatible alternatives.