A1202-10 Solid State Relay SPST-NO Equivalent & Substitute Parts

Part Overview

The A1202-10 is a solid state relay (SSR) with SPST-NO (Single Pole Single Throw - Normally Open) configuration manufactured by Sensata Technologies. This component is rated for 2A load current at 24-140V AC output with 90-280VAC input control voltage. The product is currently obsolete, making identification of suitable substitute components essential for system maintenance and new design implementations where this relay type is specified.

Substiute Parts

A1202-10

Sensata TechnologiesIn Stock: 745A1202-10 Datasheet

Current PartRFQ

A1210-10

Sensata-CrydomIn Stock: 717A1210-10 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the A1202-10 is determined by the following critical parameters that must remain constant or be compatible:

• Circuit configuration: SPST-NO (1 Form A) topology
• Output type: AC switching capability
• Input voltage range: 90 ~ 280VAC control voltage
• Load voltage range: 24 V ~ 140 V
• Mounting type: Chassis Mount
• Termination style: Screw Terminal
• Package form factor: Hockey Puck

The A1210-10 qualifies as a direct substitute based on matching all these core parameters. The primary difference is an increased load current rating of 10A versus the original 2A specification. This higher current capacity provides enhanced capability while maintaining full compatibility with the electrical and mechanical interface requirements of the A1202-10 application.

Parameter Comparison

Engineering Selection Recommendations

The A1210-10 is the qualified substitute for the A1202-10 based on the following factors:

• Product Status: The A1210-10 maintains Active status, ensuring continued availability and manufacturing support, whereas the A1202-10 is Obsolete.
• Compliance: The A1210-10 is ROHS3 Compliant and REACH Affected, providing current regulatory alignment for new designs and system updates.
• Electrical Compatibility: All critical electrical parameters match the original specification, including input voltage range, load voltage range, circuit topology, and termination interface.
• Mechanical Compatibility: Identical mounting type, package form factor, and termination style ensure direct physical replacement without mechanical redesign.
• Current Rating: The increased load current capacity of 10A provides operational margin beyond the original 2A specification, supporting applications with higher current demands within the same voltage envelope.

Frequently Asked Questions (FAQ)

Q: Can the A1210-10 be used as a direct replacement for the A1202-10?

A: Yes. The A1210-10 maintains identical electrical interface specifications (input voltage, load voltage, circuit topology, and termination style) and mechanical form factor (Hockey Puck chassis mount). The higher current rating of 10A is compatible with applications originally designed for 2A operation.

Q: What is the primary difference between these two relays?

A: The load current rating differs: A1202-10 is rated for 2A, while A1210-10 is rated for 10A. All other electrical and mechanical parameters remain identical.

Q: Why is the A1202-10 no longer available?

A: The A1202-10 has reached obsolete status. The A1210-10 represents the current active product offering from Sensata-Crydom with equivalent functionality and enhanced current capacity.

Q: Are there any compliance differences between the two parts?

A: The A1210-10 is ROHS3 Compliant and REACH Affected, reflecting current regulatory requirements. The A1202-10 is REACH Unaffected, indicating its earlier product generation status.

Q: Will the A1210-10 fit in the same physical space as the A1202-10?

A: Yes. Both components use the Hockey Puck package form factor with Chassis Mount configuration and Screw Terminal termination, ensuring identical mechanical compatibility.