SSR Relay SPST-NO 84137901 Equivalent & Substitute Parts

Part Overview

The Sensata-Crydom 84137901 is an active solid-state relay (SSR) with SPST-NO (1 Form A) configuration, designed for AC output switching applications. This hockey puck-style relay operates across a wide input voltage range of 90–280VAC and supports load voltages from 24V to 280V at 10A capacity. The part is RoHS compliant, MSL Level 1, and currently in active production with 948 units in stock. Finding equivalent or substitute parts may be necessary for supply chain continuity, design flexibility, or regional availability requirements.

Substiute Parts

84137901

Sensata-CrydomIn Stock: 96484137901 Datasheet

Current PartRFQ

84137001N

CrouzetIn Stock: 71884137001N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 84137901 is determined by the following critical parameters:

• Circuit Configuration: Must be SPST-NO (1 Form A)
• Output Type: AC output capability required
• Load Current Rating: Minimum 10A
• Load Voltage Range: Must support 24V–280V
• Input Voltage Range: Must accommodate 90–280VAC or compatible subset
• Package / Case: Hockey Puck form factor for mechanical compatibility
• Termination Style: Screw Terminal for connection compatibility
• Mounting Type: Chassis Mount orientation
• Compliance: RoHS compliant status preferred for regulatory alignment

The substitute part 84137001N (Crouzet, Series GN) meets all critical substitution criteria. While the input voltage range differs slightly (20–265VAC versus 90–280VAC), the substitute covers the primary operating window and includes zero-cross functionality. Both parts maintain identical load voltage range, current rating, circuit configuration, package form factor, and termination style.

Parameter Comparison

Engineering Selection Recommendations

Both the 84137901 and 84137001N are active production parts with RoHS compliance and MSL Level 1 ratings, ensuring regulatory alignment and environmental stability. The primary distinction lies in input voltage specification and zero-cross functionality.

The 84137901 (Sensata-Crydom GNA5 series) is specified for 90–280VAC input and standard AC output switching. The 84137001N (Crouzet GN series) operates across 20–265VAC input with integrated zero-cross detection. The zero-cross feature in the substitute part provides additional noise immunity and reduced EMI during switching transitions, which may offer performance advantages in industrial environments.

Selection between these parts should be based on input voltage requirements of the specific application. If the application operates consistently within the 20–265VAC window, the 84137001N is a direct functional equivalent. If input voltages below 20VAC or above 265VAC are required, the 84137901 remains the appropriate choice.

Frequently Asked Questions (FAQ)

Q: Can the 84137001N replace the 84137901 in all applications?

A: The 84137001N is functionally compatible for applications where input voltage remains within the 20–265VAC range. If your circuit requires input voltages below 20VAC or above 265VAC, the 84137901 is the correct part. Both parts are identical in load voltage range, current rating, circuit configuration, and mechanical form factor.

Q: What is the significance of zero-cross functionality in the 84137001N?

A: Zero-cross detection synchronizes relay switching to the AC voltage zero-crossing point, reducing electromagnetic interference and switching noise. This feature is beneficial in noise-sensitive applications but is not required for basic SPST-NO switching functionality.

Q: Are the hockey puck packages mechanically interchangeable?

A: Yes. Both the 84137901 and 84137001N use identical hockey puck form factors with chassis mount orientation and screw terminal connections. Mechanical mounting and electrical connection points are compatible.

Q: Do both parts meet the same compliance standards?

A: Yes. Both parts are RoHS compliant, carry MSL Level 1 ratings, and are in active production status. They meet equivalent regulatory and environmental requirements.

Q: What is the inventory status for each part?

A: The 84137901 has 948 units in stock (bulk packaging). The 84137001N has 638 units in stock (box packaging). Packaging format differs but does not affect electrical or mechanical compatibility.