CMA6050 Solid State Relay - Equivalent & Substitute Parts

Part Overview

The CMA6050 is a solid state relay (SSR) with SPST-NO (1 Form A) configuration, rated for 50A load current across 48V to 660V output range with AC zero-cross switching. Manufactured by Sensata-Crydom, this hockey puck-style relay features screw terminal connections and chassis mount configuration. The CMA6050 is designated as Last Time Buy, indicating production discontinuation. Equivalent substitute parts are available from the same manufacturer with active product status and enhanced compliance certifications.

Substiute Parts

CMA6050

Sensata-CrydomIn Stock: 964CMA6050 Datasheet

Current PartRFQ

84137121

Sensata-CrydomIn Stock: 89884137121 Datasheet

MFR RecommendedRFQ

CWA4850

Sensata-CrydomIn Stock: 1029CWA4850 Datasheet

MFR RecommendedRFQ

HA6050

Sensata-CrydomIn Stock: 1096HA6050 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CMA6050 is determined by strict equivalence across the following parameters:

• Circuit configuration: SPST-NO (1 Form A) only
• Output type: AC with zero-cross switching
• Load current rating: 50 A minimum
• Load voltage range: 48 V to 660 V minimum
• Package style: Hockey Puck
• Mounting type: Chassis Mount
• Termination style: Screw Terminal
• Manufacturer: Sensata-Crydom

All three substitute parts (84137121, CWA4850, HA6050) meet these core electrical and mechanical requirements. Differences exist in input voltage range and compliance certifications, which are documented in the parameter comparison table below.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts are functionally equivalent to the CMA6050 for applications requiring 50A SPST-NO solid state relay operation at 48V to 660V load levels with AC zero-cross switching.

The CMA6050 is Last Time Buy status. For new designs or long-term production requirements, selection from the active product alternatives is recommended:

• 84137121: Active product with ROHS3 compliance and REACH affected status. Input voltage range expanded to 90-280VAC. Manufacturer-recommended substitute.
• CWA4850: Active product with ROHS3 compliance and REACH affected status. Input voltage range expanded to 90-280VAC. Highest current inventory availability.
• HA6050: Active product with RoHS compliance. Input voltage range expanded to 90-280VAC. Maintains RoHS (non-ROHS3) certification level.

All substitute parts maintain identical load current, load voltage, circuit configuration, package style, and termination specifications. The expanded input voltage range (90-280VAC versus 90-140VAC) in substitute parts provides broader operational flexibility for control signal applications.

Frequently Asked Questions (FAQ)

Q: Can CMA6050 be directly replaced with any of these substitute parts?

A: Yes. All three substitute parts (84137121, CWA4850, HA6050) are electrically and mechanically equivalent for the core function: 50A SPST-NO relay operation at 48-660V load levels with AC zero-cross switching. Physical dimensions, screw terminal connections, and chassis mount configuration are identical.

Q: What is the primary difference between CMA6050 and the substitute parts?

A: The CMA6050 accepts input control signals in the 90-140VAC range. All substitute parts accept 90-280VAC input range, providing compatibility with a broader range of control voltage sources. This expanded input range does not affect load-side performance.

Q: Are there compliance differences between the options?

A: Yes. The CMA6050 carries RoHS Compliant certification. Substitutes 84137121 and CWA4850 carry ROHS3 Compliant certification with REACH affected status. Substitute HA6050 carries RoHS Compliant certification. Selection should align with end-product compliance requirements.

Q: Which substitute part should be selected for new designs?

A: Any of the three active products (84137121, CWA4850, HA6050) are suitable for new designs. CWA4850 offers the highest inventory availability. Selection between ROHS3 and RoHS certification levels should be based on end-product regulatory requirements.

Q: Is the hockey puck package style consistent across all parts?

A: Yes. All parts use identical hockey puck package style with screw terminal connections and chassis mount configuration. No mechanical redesign is required for substitution.