A/RH5-D-BB Humidity Sensor Equivalent & Substitute Parts

Part Overview

The A/RH5-D-BB is an active humidity sensor manufactured by Automation Components, Inc., designed for analog output applications requiring relative humidity measurement across the 0 to 100% RH range. This chassis-mounted module provides dual analog output options (voltage and current) with ±5% RH accuracy and a 20-second response time. The part is currently in active product status with 834 units in stock.

Substitute parts are identified when design requirements necessitate alternative packaging configurations, different mounting specifications, or inventory optimization while maintaining identical electrical performance and sensor characteristics.

Key Parameters

Parameter	Specification
Sensor Type	Humidity
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
Manufacturer	Automation Components, Inc.

Substitute Part Grouping Explanation

Substitute parts for the A/RH5-D-BB are classified as parametric equivalents based on the following substitution criteria:

Primary Equivalence Parameters:

Humidity measurement range: 0 ~ 100% RH
Output type: Analog Current and Analog Voltage
Accuracy specification: ±5% RH
Response time: 20 seconds
Supply voltage range: 18 ~ 28VAC, 12 ~ 40VDC
Mounting configuration: Chassis Mount
Package type: Module

Substitution Variance Allowed:

Packaging format (Tape & Box vs. standard packaging)
Operating temperature range (within specified limits)
Inventory availability

All identified substitute parts maintain identical electrical performance, sensor accuracy, and output characteristics. Substitution is valid when the application requirements align with the specified parameter ranges and mounting configuration.

Parameter Comparison

Part Number	Humidity Range	Output Type	Accuracy	Response Time	Supply Voltage	Operating Temp	Mounting	Packaging	Inventory
A/RH5-D-BB	0 ~ 100% RH	Analog Current, Analog Voltage	±5% RH	20 s	18 ~ 28VAC, 12 ~ 40VDC	-40°C ~ 60°C	Chassis Mount	Module	834 Pcs
A/RH5-AN-O	0 ~ 100% RH	Analog Current, Analog Voltage	±5% RH	20 s	18 ~ 28VAC, 12 ~ 40VDC	-40°C ~ 60°C	Chassis Mount	Tape & Box (TB)	1067 Pcs
A/RH5-CP-O	0 ~ 100% RH	Analog Current, Analog Voltage	±5% RH	20 s	18 ~ 28VAC, 12 ~ 40VDC	-40°C ~ 60°C	Chassis Mount	Tape & Box (TB)	1015 Pcs
A/RH5-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)	661 Pcs
A/RH5-O	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)	1032 Pcs
A/RH5-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)	1036 Pcs
A/RH5-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)	1124 Pcs

Engineering Selection Recommendations

Full Parameter Match (Recommended for Direct Substitution):

A/RH5-AN-O, A/RH5-CP-O, and A/RH5-D maintain identical operating temperature range (-40°C ~ 60°C) as the A/RH5-D-BB. These parts are suitable for direct substitution in applications where the full temperature specification is required. All three are available in Tape & Box packaging format.

Extended Temperature Range Variants:

A/RH5-O, A/RH5-R, and A/RH5-R2 feature a narrower minimum operating temperature (1.5°C vs. -40°C). These parts are suitable for substitution only in applications where the operating environment does not require operation below 1.5°C. All three are available in Tape & Box packaging format.

Inventory Considerations:

All substitute parts maintain active product status. Selection should account for application-specific packaging requirements and current inventory levels. A/RH5-R2 offers the highest inventory availability at 1124 units.

Frequently Asked Questions (FAQ)

Q: Can A/RH5-AN-O replace A/RH5-D-BB in all applications?

A: Yes. A/RH5-AN-O is a parametric equivalent with identical humidity range, output type, accuracy, response time, supply voltage, and operating temperature specifications. The only difference is packaging format (Tape & Box vs. standard module packaging).

Q: What is the difference between A/RH5-D-BB and A/RH5-O?

A: Both parts provide identical humidity measurement and output characteristics. The primary difference is operating temperature range: A/RH5-D-BB operates from -40°C to 60°C, while A/RH5-O operates from 1.5°C to 60°C. A/RH5-O is suitable for substitution only if the application does not require operation below 1.5°C.

Q: Are all substitute parts available in the same packaging format?

A: No. A/RH5-D-BB uses standard module packaging. Substitute parts A/RH5-AN-O, A/RH5-CP-O, A/RH5-D, A/RH5-O, A/RH5-R, and A/RH5-R2 are available in Tape & Box (TB) packaging. Verify packaging compatibility with assembly requirements before selection.

Q: Do all substitute parts support the same output voltage and current ranges?

A: Yes. All substitute parts support identical output specifications: 0V ~ 5V, 0V ~ 10V, and 4mA ~ 20mA analog outputs.

Q: Which substitute part has the best inventory availability?

A: A/RH5-R2 has the highest inventory level at 1124 units in stock.

Q: Can A/RH5-R2 be used in applications requiring -40°C operation?

A: No. A/RH5-R2 has a minimum operating temperature of 1.5°C. For applications requiring -40°C operation, use A/RH5-D-BB, A/RH5-AN-O, A/RH5-CP-O, or A/RH5-D.

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