ASO242R Solid State Relay - Equivalent & Substitute Parts

Part Overview

The ASO242R is an active, ROHS3-compliant solid state relay manufactured by Sensata-Crydom. This SPST-NO (1 Form A) relay is designed for AC load switching applications with a 2A capacity and operates across a 12V to 280V load voltage range. The component is housed in a 4-SIP package with PC pin termination for through-hole mounting. As an active product with 1140 units in stock, substitutes may be required for supply chain optimization, regional availability, or specific application constraints.

Substiute Parts

ASO242R

Sensata-CrydomIn Stock: 1237ASO242R Datasheet

Current PartRFQ

AQG22212

Panasonic Electric WorksIn Stock: 1781AQG22212 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ASO242R is determined by the following critical parameters:

• Circuit Configuration: Must be SPST-NO (1 Form A) to maintain identical switching functionality
• Output Type: Must be AC to ensure compatibility with load switching requirements
• Load Current Rating: Must be rated for 2A minimum to handle specified loads
• Package / Case: Must be 4-SIP with PC pin termination to ensure mechanical and electrical compatibility with existing PCB layouts
• Mounting Type: Must be through-hole to match board assembly requirements
• Load Voltage Range: Must encompass or exceed the 12V to 280V operating window
• Input Voltage Range: Must accommodate the 4 ~ 10VDC control signal specification
• Compliance: Must maintain ROHS3 compliance for regulatory alignment

The AQG22212 from Panasonic Electric Works meets all substitution criteria within these parameters.

Parameter Comparison

Engineering Selection Recommendations

Both the ASO242R and AQG22212 are active products with ROHS3 compliance and EAR99 export classification. Selection between these parts should be based on the following factors:

ASO242R (Sensata-Crydom): Provides a wider input voltage tolerance (4 ~ 10VDC) and extends load voltage operation down to 12V, making it suitable for applications requiring lower voltage switching capability.

AQG22212 (Panasonic Electric Works): Operates within a narrower input voltage window (9.6 ~ 14.4VDC) and supports load voltages from 75V to 264V. This part is appropriate for applications where the control signal remains within the specified input range and load voltages do not fall below 75V.

Both parts maintain identical load current capacity (2A), package configuration (4-SIP), and termination style (PC pin). Compliance certifications are equivalent across both options.

Frequently Asked Questions (FAQ)

Q: Can the AQG22212 replace the ASO242R in all applications?

A: The AQG22212 is a functional substitute only when the application's load voltage remains within the 75V to 264V range and the control input voltage falls within 9.6 ~ 14.4VDC. Applications requiring load voltages below 75V or input voltages below 9.6VDC require the ASO242R.

Q: Are the package dimensions identical between these parts?

A: Both parts use 4-SIP packaging with PC pin termination. Mechanical compatibility is ensured for through-hole PCB mounting.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both the ASO242R and AQG22212 are ROHS3 compliant and classified under ECCN EAR99 with identical HTSUS codes (8536.49.0055).

Q: What is the key difference in electrical specifications?

A: The primary differences are input voltage range (ASO242R: 4 ~ 10VDC vs. AQG22212: 9.6 ~ 14.4VDC) and minimum load voltage (ASO242R: 12V vs. AQG22212: 75V). Load current capacity and output type remain identical at 2A AC.

Q: Which part should be selected for new designs?

A: Selection depends on the specific application requirements. If the design operates within the AQG22212 voltage specifications, either part is acceptable. If lower input or load voltages are required, the ASO242R is the appropriate choice.