A/RH5-CP-R-NIST Humidity and Temperature Sensor Module: Equivalent and Substitute Parts

Part Overview

The A/RH5-CP-R-NIST is an active product humidity and temperature sensor module manufactured by Automation Components, Inc. This chassis-mounted module provides dual analog outputs (current and voltage) for relative humidity measurement across the full 0–100% RH range with ±5% accuracy and a 20-second response time. The sensor operates across a supply voltage range of 18–28VAC or 12–40VDC and functions within an operating temperature range of 1.5°C to 60°C.

Substitute parts are necessary when the original A/RH5-CP-R-NIST becomes unavailable, when alternative packaging formats are required for production workflows, or when extended operating temperature ranges are needed for specific application environments.

Key Parameters

Parameter	Value
Sensor Type	Humidity, Temperature
Humidity Range	0–100% RH
Output Type	Analog Current, Analog Voltage
Output Signals	0V–5V, 0V–10V, 4mA–20mA
Accuracy	±5% RH
Response Time	20 s
Voltage Supply	18–28VAC, 12–40VDC
Mounting Type	Chassis Mount
Operating Temperature	1.5°C–60°C
Package Type	Module
Manufacturer	Automation Components, Inc.
Product Status	Active

Substitute Part Grouping Explanation

Substitution eligibility for the A/RH5-CP-R-NIST is determined by strict equivalence across the following critical parameters:

Core Functional Parameters (Must Match):

Sensor Type: Humidity, Temperature
Humidity Range: 0–100% RH
Output Type: Analog Current, Analog Voltage
Output Signals: 0V–5V, 0V–10V, 4mA–20mA
Accuracy: ±5% RH
Response Time: 20 s
Voltage Supply: 18–28VAC, 12–40VDC
Mounting Type: Chassis Mount
Package Type: Module

Allowed Variation Parameters:

Operating Temperature Range: Substitute parts may extend the lower temperature limit to –40°C while maintaining the 60°C upper limit
Packaging Format: Substitutes may use Tape & Box (TB) packaging instead of standard module packaging
Series Designation: Substitutes may belong to different series (A/RHx-CP or A/RHx-AN)

All substitute parts listed maintain identical functional specifications and are manufactured by Automation Components, Inc. with Active product status.

Parameter Comparison

Part Number	Humidity Range	Output Type	Accuracy	Response Time	Supply Voltage	Operating Temperature	Mounting Type	Packaging	Inventory (Pcs)
A/RH5-CP-R-NIST	0–100% RH	Analog Current, Analog Voltage	±5% RH	20 s	18–28VAC, 12–40VDC	1.5°C–60°C	Chassis Mount	Module	835
A/RH5-CP-R	0–100% RH	Analog Current, Analog Voltage	±5% RH	20 s	18–28VAC, 12–40VDC	1.5°C–60°C	Chassis Mount	Tape & Box (TB)	768
A/RH5-CP-R2	0–100% RH	Analog Current, Analog Voltage	±5% RH	20 s	18–28VAC, 12–40VDC	1.5°C–60°C	Chassis Mount	Tape & Box (TB)	840
A/RH5-CP-D	0–100% RH	Analog Current, Analog Voltage	±5% RH	20 s	18–28VAC, 12–40VDC	–40°C–60°C	Chassis Mount	Tape & Box (TB)	801
A/RH5-AN-D	0–100% RH	Analog Current, Analog Voltage	±5% RH	20 s	18–28VAC, 12–40VDC	–40°C–60°C	Chassis Mount	Tape & Box (TB)	800
A/RH5-AN-R	0–100% RH	Analog Current, Analog Voltage	±5% RH	20 s	18–28VAC, 12–40VDC	1.5°C–60°C	Chassis Mount	Tape & Box (TB)	750
A/RH5-AN-R2	0–100% RH	Analog Current, Analog Voltage	±5% RH	20 s	18–28VAC, 12–40VDC	1.5°C–60°C	Chassis Mount	Tape & Box (TB)	869
A/RH5-AN-R2O	0–100% RH	Analog Current, Analog Voltage	±5% RH	20 s	18–28VAC, 12–40VDC	1.5°C–60°C	Chassis Mount	Tape & Box (TB)	1084
A/RH5-AN-RSO-A03-A1	0–100% RH	Analog Current, Analog Voltage	±5% RH	20 s	18–28VAC, 12–40VDC	1.5°C–60°C	Chassis Mount	Tape & Box (TB)	1076

Engineering Selection Recommendations

All listed substitute parts maintain Active product status and are manufactured by Automation Components, Inc., ensuring compliance with the same design and quality standards as the A/RH5-CP-R-NIST.

Selection Criteria:

For direct functional equivalence with standard operating temperature range (1.5°C–60°C):

A/RH5-CP-R: Identical specifications; differs only in packaging format (Tape & Box)
A/RH5-CP-R2: Identical specifications; differs only in packaging format (Tape & Box)
A/RH5-AN-R: Identical specifications; differs in series designation and packaging format
A/RH5-AN-R2: Identical specifications; differs in series designation and packaging format
A/RH5-AN-R2O: Identical specifications; differs in series designation and packaging format
A/RH5-AN-RSO-A03-A1: Identical specifications; differs in series designation and packaging format

For extended low-temperature operation (–40°C–60°C):

A/RH5-CP-D: Extends operating temperature range to –40°C; differs in packaging format (Tape & Box)
A/RH5-AN-D: Extends operating temperature range to –40°C; differs in series designation and packaging format (Tape & Box)

All substitutes maintain identical humidity measurement range, output signal types, accuracy, response time, and supply voltage specifications.

Frequently Asked Questions (FAQ)

Q: What determines whether a part can substitute for the A/RH5-CP-R-NIST?

A: Substitution is based on strict equivalence across core functional parameters: sensor type (Humidity, Temperature), humidity range (0–100% RH), output type (Analog Current and Analog Voltage), output signals (0V–5V, 0V–10V, 4mA–20mA), accuracy (±5% RH), response time (20 s), supply voltage (18–28VAC, 12–40VDC), mounting type (Chassis Mount), and package type (Module). All substitute parts meet these requirements.

Q: Can I use a substitute part with an extended operating temperature range?

A: Yes. Parts A/RH5-CP-D and A/RH5-AN-D extend the lower operating temperature limit to –40°C while maintaining the 60°C upper limit. These are functionally equivalent and suitable for applications requiring operation below 1.5°C.

Q: What is the difference between Tape & Box (TB) packaging and standard Module packaging?

A: Tape & Box packaging is a production format used for automated assembly and bulk handling. Standard Module packaging is the default format. Both contain identical sensor modules with identical functional specifications. The choice depends on production workflow requirements and assembly processes.

Q: Are all substitute parts manufactured by the same company?

A: Yes. All substitute parts listed are manufactured by Automation Components, Inc., the same manufacturer as the A/RH5-CP-R-NIST.

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

A: Both series maintain identical functional specifications for humidity measurement, output types, accuracy, and response time. The series designation reflects internal design or configuration differences that do not affect electrical or mechanical compatibility for the specified application parameters.

Q: Which substitute part has the highest inventory availability?

A: A/RH5-AN-R2O has the highest inventory with 1084 pieces in stock, followed by A/RH5-AN-RSO-A03-A1 with 1076 pieces.

Q: Can I mix substitute parts in the same system?

A: Yes. All substitute parts are functionally equivalent and maintain identical output specifications (0V–5V, 0V–10V, 4mA–20mA), supply voltage requirements (18–28VAC, 12–40VDC), and mounting type (Chassis Mount). They can be used interchangeably in systems designed for the A/RH5-CP-R-NIST.

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