A/RH5-3K-RO Humidity and Temperature Sensor - Equivalent & Substitute Parts

Part Overview

The A/RH5-3K-RO is an active humidity and temperature sensor manufactured by Automation Components, Inc., designed for chassis mount applications requiring analog current and voltage outputs. This module operates across a 0–100% RH range with ±5% RH accuracy and a 20-second response time, supporting dual supply voltage configurations (18–28VAC or 12–40VDC). The part maintains active product status with 780 units in current inventory.

Substitute parts are identified when equivalent electrical performance, output specifications, and mechanical compatibility are maintained across the A/RHx sensor series, enabling component interchangeability in system designs where supply chain continuity or packaging requirements necessitate alternative part selection.

Key Parameters

Parameter	Specification
Sensor Type	Humidity, Temperature
Humidity Range	0–100% RH
Output Type	Analog Current, Analog Voltage
Output Levels	0V–5V, 0V–10V, 4mA–20mA
Accuracy	±5% RH
Response Time	20 s
Voltage Supply	18–28VAC, 12–40VDC
Mounting Type	Chassis Mount
Package / Case	Module
Product Status	Active

Substitute Part Grouping Explanation

Substitute parts for the A/RH5-3K-RO are classified as parametric equivalents based on the following criteria:

Core Electrical Equivalence:

Humidity measurement range: 0–100% RH
Output type: Analog Current and Analog Voltage
Output levels: 0V–5V, 0V–10V, 4mA–20mA
Accuracy: ±5% RH
Response time: 20 seconds
Supply voltage: 18–28VAC, 12–40VDC

Mechanical Compatibility:

Mounting type: Chassis Mount
Package type: Module

Operational Constraints:

Operating temperature range variations (1.5°C–60°C or –40°C–60°C) do not disqualify substitution; extended range variants provide broader environmental coverage
Packaging format (Tape & Box vs. standard module) represents logistics variation, not functional difference

All identified substitute parts maintain identical sensor functionality, output specifications, and supply voltage compatibility, ensuring direct interchangeability in circuit designs.

Parameter Comparison

Part Number	Manufacturer	Humidity Range	Output Type	Accuracy	Response Time	Supply Voltage	Operating Temperature	Mounting Type	Inventory (Pcs)	Product Status
A/RH5-3K-RO	Automation Components, Inc.	0–100% RH	Analog Current, Analog Voltage	±5% RH	20 s	18–28VAC, 12–40VDC	1.5°C–60°C	Chassis Mount	780	Active
A/RH5-AN-D	Automation Components, Inc.	0–100% RH	Analog Current, Analog Voltage	±5% RH	20 s	18–28VAC, 12–40VDC	–40°C–60°C	Chassis Mount	800	Active
A/RH5-AN-R	Automation Components, Inc.	0–100% RH	Analog Current, Analog Voltage	±5% RH	20 s	18–28VAC, 12–40VDC	1.5°C–60°C	Chassis Mount	750	Active
A/RH5-AN-R2	Automation Components, Inc.	0–100% RH	Analog Current, Analog Voltage	±5% RH	20 s	18–28VAC, 12–40VDC	1.5°C–60°C	Chassis Mount	869	Active
A/RH5-AN-R2O	Automation Components, Inc.	0–100% RH	Analog Current, Analog Voltage	±5% RH	20 s	18–28VAC, 12–40VDC	1.5°C–60°C	Chassis Mount	1084	Active
A/RH5-AN-RSO-A03-A1	Automation Components, Inc.	0–100% RH	Analog Current, Analog Voltage	±5% RH	20 s	18–28VAC, 12–40VDC	1.5°C–60°C	Chassis Mount	1076	Active
A/RH5-CP-D	Automation Components, Inc.	0–100% RH	Analog Current, Analog Voltage	±5% RH	20 s	18–28VAC, 12–40VDC	–40°C–60°C	Chassis Mount	801	Active
A/RH5-CP-R	Automation Components, Inc.	0–100% RH	Analog Current, Analog Voltage	±5% RH	20 s	18–28VAC, 12–40VDC	1.5°C–60°C	Chassis Mount	768	Active
A/RH5-CP-R2	Automation Components, Inc.	0–100% RH	Analog Current, Analog Voltage	±5% RH	20 s	18–28VAC, 12–40VDC	1.5°C–60°C	Chassis Mount	840	Active

Engineering Selection Recommendations

All substitute parts listed maintain active product status with Automation Components, Inc., ensuring ongoing manufacturer support and supply chain availability. Selection among equivalent parts should be based on the following factors:

Operating Temperature Requirements:

For applications requiring extended low-temperature operation (below 1.5°C), select A/RH5-AN-D or A/RH5-CP-D, which support –40°C minimum operating temperature
For standard industrial environments (1.5°C–60°C), all remaining substitutes are functionally equivalent

Inventory Availability:

A/RH5-AN-R2O provides highest current stock (1084 units)
A/RH5-AN-RSO-A03-A1 offers 1076 units
All parts maintain sufficient inventory for production deployment

Series Designation:

A/RHx-AN series: A/RH5-AN-D, A/RH5-AN-R, A/RH5-AN-R2, A/RH5-AN-R2O, A/RH5-AN-RSO-A03-A1
A/RHx-CP series: A/RH5-CP-D, A/RH5-CP-R, A/RH5-CP-R2
Series selection reflects internal design variants; electrical and mechanical performance remain equivalent

All parts are suitable for direct substitution in existing circuit designs without modification to power supply, output signal conditioning, or mechanical mounting interfaces.

Frequently Asked Questions (FAQ)

Q: Can A/RH5-AN-D replace A/RH5-3K-RO in all applications?

A: A/RH5-AN-D is a parametric equivalent with identical humidity range (0–100% RH), output specifications (Analog Current and Voltage), accuracy (±5% RH), response time (20 s), and supply voltage (18–28VAC, 12–40VDC). The primary difference is extended operating temperature range (–40°C–60°C vs. 1.5°C–60°C). Substitution is valid for all applications within the standard temperature range and beneficial for low-temperature environments.

Q: What is the difference between A/RHx-AN and A/RHx-CP series?

A: Both series maintain identical electrical performance and output specifications. The series designation reflects internal design or manufacturing variants. No functional difference exists for circuit design or system integration purposes.

Q: Does packaging format (Tape & Box vs. Module) affect substitution?

A: Packaging format represents logistics and handling variation only. Tape & Box packaging does not alter electrical performance, output characteristics, or mechanical mounting compatibility. Selection should be based on procurement and assembly process requirements.

Q: Are all substitute parts currently in production?

A: All listed substitute parts maintain active product status with Automation Components, Inc., confirming ongoing production and manufacturer support.

Q: Which substitute part offers the best inventory availability?

A: A/RH5-AN-R2O provides the highest current stock at 1084 units, followed by A/RH5-AN-RSO-A03-A1 at 1076 units. Both are suitable for high-volume production requirements.

Q: Can I use A/RH5-CP-D for applications requiring operation below 0°C?

A: A/RH5-CP-D supports operating temperatures from –40°C to 60°C, enabling deployment in cold environments. All other substitute parts are rated 1.5°C minimum. Selection depends on specific environmental requirements.

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