Name: RS9100 Series High-Temp Optical Encoder Module
Brand: EPOCH
SKU: RS9100
Availability: InStock

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|RS9100 Series High-Temp Optical Encoder Module — 2-Channel 200 kHz -40~+100°C LPI | EPOCH| EPOCH

Quick Select: Mechanical Drawings Features Tech Specs Waveform Pin Definition Ordering Guide FAQ

Mechanical Drawings — RS9100 Series High-Temp Optical Encoder Module Dimensions (ROP 11 mm)

RS9100 Series — Mechanical Dimensions

Fig.3 — Mechanical Dimensions (ROP 11 mm)

RS9100 Series Mechanical Dimension Drawing

C-shape plastic package. ROP 11 mm. Unit: mm.

[FEATURES] RS9100 Series High-Temp Optical Encoder Module — Key Features & Description

•

Type: Two channel optical incremental encoder module with lensed LED and detector IC

•

Sensor: Photodetector Array

•

Temp Range: −40°C ~ +100°C

•

Resolution: Up to 450 LPI

•

Structure: C-Shape Design

•

Adjustment: No Signal Adjustment Required

•

Output: TTL Compatible

•

Supply: Single 5V Supply

Technical Specifications — RS9100 Series 2-Channel High-Temp Optical Incremental Encoder Module

Parameter	Min	Typ	Max	Unit / Note
Storage Temperature	−40	—	+100	°C
Operating Temperature	−40	—	+100	°C
Supply Voltage (Vcc)	4.5	5.0	5.5	V
Response Frequency	—	200	—	KHz
Module Operation Current	20	25	40	mA
Detector Operating Current (Icc)	8	—	15	mA
VOL (2 kΩ pull-up)	—	0.2	0.4	V
VOH (2 kΩ pull-up)	2.4	4.5	—	V
Rise Time (tr) — 2 kΩ pull-up, C_L=8 pF	—	120	—	ns
Fall Time (tf) — 2 kΩ pull-up, C_L=8 pF	—	20	—	ns
Duty Cycle	40	50	60	%
Phase Difference	60	90	120	° (electrical)
Output Current per Channel	I_o	−1 mA	—	5 mA	mA
Shaft Perpendicularity + Axial Play	−0.25	—	0.25	mm
Shaft Eccentricity + Radial Play	—	—	0.04	mm
ROP	—	11	—	mm
Standard LPI Options: 45, 90, 120, 150, 180, 254, 300, 360, 450

Output Waveform Diagram — RS9100 Series 2-Channel Timing

Fig.1 — Output Waveform Diagram

RS9100 Series Output Waveform Diagram

Two-channel output (CH A & CH B) with 90° electrical phase shift. Duty cycle 40/50/60%.

Pin Definition — RS9100 Series (5-Pin)

Pin	Function	Description
Vcc	Power Supply	+5V Power Supply
CH A	Output	A Channel Output
CH B	Output	B Channel Output
GND	Power Supply	Ground
NC	—	No Connection

Ordering Information / Part Number — RS9100 Series High-Temp Optical Encoder Module

Code Structure: RS9100-&square; (&square; = LPI Code for codestrip, or CPR Code for codewheel)

R

→

S

→

9

→

1

→

0

→

0

→

−

→

LPI / CPR
Code

Series Prefix

Separator

30 = 300 LPI
A = 500 CPR

LPI Code — Codestrip (Linear)

LPI Code	LPI Value	LPI Code	LPI Value
09	90 LPI	30	300 LPI
12	120 LPI	36	360 LPI
15	150 LPI	45	45 LPI
18	180 LPI	F5	450 LPI
25	254 LPI	—	—

Note: LPI code F5 uses an alphanumeric format for 450 LPI.

CPR Code — Codewheel (Rotary)

CPR Code	CPR Value	CPR Code	CPR Value
C	100 CPR	A	500 CPR
E	200 CPR	B	1000 CPR
F	256 CPR	—	—
G	360 CPR	—	—
H	400 CPR	—	—

Example — LPI (Codestrip):

RS9100-30

= RS9100 Series · LPI Code 30 = 300 LPI

Example — CPR (Codewheel):

RS9100-A

= RS9100 Series · CPR Code A = 500 CPR

Available LPI: 45, 90, 120, 150, 180, 254, 300, 360, 450 | Available CPR: 100, 200, 256, 360, 400, 500, 1000

Module Printing / Label — RS9100 High-Temp Optical Encoder Module

RS9100 Module Printing / Label View

RS9100 Module Printing

Module printing includes model code and LPI rating.

Technical FAQs — RS9100 Series High-Temp Optical Encoder Module

Q: What is the RS9100 high-temp optical encoder module?

A: The RS9100 series is a 2-channel optical incremental encoder module designed for high-temperature environments. It integrates a lensed LED source and a precision photodetector array in a compact C-shape plastic package, operating from −40°C to +100°C with resolutions up to 450 LPI.

Q: What are the typical applications for the RS9100 series?

A: The RS9100 high-temp encoder is widely used in printers, plotters, servo motors, and factory automation equipment where reliable position sensing under elevated temperatures is required.

Q: What LPI resolutions are available for RS9100?

A: The RS9100 2-channel encoder supports standard LPI options of 45, 90, 120, 150, 180, 254, 300, 360, and 450, selectable via the ordering code RS9100-[LPI].

Q: Does the RS9100 module require external signal adjustment?

A: No. The RS9100 module features TTL-compatible outputs with no signal adjustment required. It operates from a single +5V supply, making it easy to integrate into existing digital systems.

[CROSS-REFERENCE] Need Higher Resolution or a Different Form Factor?

RS9140 Series High-Temp Optical Encoder Module — For applications requiring extended LPI options or a different mechanical configuration, the RS9140 series offers an alternative high-temperature optical encoder module solution optimized for servo motor and industrial automation use cases in harsh thermal environments.

B2B Global RS9100 Encoder Sourcing

Request a Quote

Need custom LPI, bulk pricing, or technical support for the RS9100 high-temp optical encoder module? Contact our sales team.

Request Direct Sourcing Evaluation →

Sales: liya@epoch-electronic.com

Disclaimer: The RS9100 series is not recommended for use in life safety applications. Specifications are subject to change without notice. All technical data provided is for reference purposes only. Confirm with EPOCH for the latest product specifications and availability.