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

Part Overview

The A/RH5-3K-D is an active humidity and temperature sensor manufactured by Automation Components, Inc. This chassis-mounted module provides analog current and analog voltage outputs for relative humidity measurement across the 0 to 100% RH range with ±5% RH accuracy. The sensor operates across a supply voltage range of 18 to 28VAC or 12 to 40VDC, with a 20-second response time and operating temperature range of -40°C to 60°C. The product maintains Active status with 671 pieces in current inventory. Equivalent substitute parts are identified to support procurement flexibility, supply chain continuity, and application-specific packaging or mounting requirements.

Key Parameters

Parameter	Value
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
Operating Temperature	-40°C ~ 60°C
Package / Case	Module
Product Status	Active

Substitute Part Grouping Explanation

Substitute parts for the A/RH5-3K-D are identified based on strict parametric equivalence across the following critical specifications:

Core Equivalence Criteria:

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

All identified substitute parts maintain these core parameters. Variations exist in operating temperature range and packaging format (Tape & Box versus standard module packaging). The A/RH5-CP-D and A/RH5-CP-R2 variants maintain the full -40°C to 60°C operating temperature range identical to the main part. The A/RH5-AN series (A/RH5-AN-D, A/RH5-AN-R, A/RH5-AN-R2, A/RH5-AN-R2O, A/RH5-AN-RSO-A03-A1) operate within a narrower temperature range of 1.5°C to 60°C.

Parameter Comparison

Part Number	Manufacturer	Humidity Range	Output Type	Accuracy	Response Time	Voltage Supply	Operating Temperature	Mounting Type	Inventory (Pcs)	Product Status
A/RH5-3K-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	671	Active
A/RH5-AN-D	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	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 identified substitute parts maintain Active product status and are manufactured by Automation Components, Inc., ensuring consistent quality and support. Selection between the main part A/RH5-3K-D and its substitutes depends on application-specific operating temperature requirements and packaging preferences.

Full Temperature Range (-40°C to 60°C): The A/RH5-3K-D, A/RH5-CP-D, and A/RH5-CP-R2 are suitable for applications requiring operation across the extended lower temperature limit of -40°C. These parts are functionally equivalent across all other parameters.

Restricted Temperature Range (1.5°C to 60°C): The A/RH5-AN series (A/RH5-AN-D, A/RH5-AN-R, A/RH5-AN-R2, A/RH5-AN-R2O, A/RH5-AN-RSO-A03-A1) and A/RH5-CP-R are suitable for applications where the minimum operating temperature does not fall below 1.5°C. These parts offer higher inventory availability in certain variants.

All substitute parts are supplied in Tape & Box packaging format and maintain identical sensor functionality, output specifications, accuracy, response time, and supply voltage range as the main part.

Frequently Asked Questions (FAQ)

Q: What determines if a part can substitute for the A/RH5-3K-D?

A: Substitute parts must maintain identical specifications for humidity range (0 ~ 100% RH), output type (Analog Current and Analog Voltage), accuracy (±5% RH), response time (20 s), supply voltage (18 ~ 28VAC, 12 ~ 40VDC), mounting type (Chassis Mount), and product status (Active). Operating temperature range and packaging format may vary.

Q: Can I use A/RH5-AN-D in place of A/RH5-3K-D?

A: The A/RH5-AN-D is parametrically equivalent to the A/RH5-3K-D for all core sensor and output specifications. However, the A/RH5-AN-D operates within a restricted temperature range of 1.5°C to 60°C, compared to the A/RH5-3K-D range of -40°C to 60°C. Use A/RH5-AN-D only if your application does not require operation below 1.5°C.

Q: What is the difference between the A/RH5-AN and A/RH5-CP series?

A: Both series maintain identical humidity sensing, output, accuracy, response time, and supply voltage specifications. The primary distinction is the series designation within the part number nomenclature. The A/RH5-CP-D maintains the full -40°C to 60°C operating temperature range, while A/RH5-CP-R and A/RH5-CP-R2 operate within 1.5°C to 60°C.

Q: Does packaging format affect electrical performance?

A: No. All substitute parts are supplied in Tape & Box packaging and maintain identical electrical performance and module specifications as the main part. Packaging format affects only handling, storage, and logistics considerations.

Q: Which substitute part has the highest inventory availability?

A: The A/RH5-AN-R2O variant has the highest inventory with 1084 pieces in stock, followed by A/RH5-AN-RSO-A03-A1 with 1076 pieces. Both maintain full parametric equivalence to the main part within their specified operating temperature range.

Q: Can I use multiple substitute parts interchangeably in the same application?

A: Yes, provided your application's operating temperature range is compatible. For applications requiring -40°C operation, use only A/RH5-3K-D, A/RH5-CP-D, or A/RH5-CP-R2. For applications operating above 1.5°C, all substitute parts are interchangeable based on availability and packaging requirements.

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