Sensata-Crydom 84134181 SSR Relay SPST-NO 125A 48-660V Equivalent & Substitute Parts

Part Overview

The Sensata-Crydom 84134181 is a solid-state relay (SSR) with SPST-NO (1 Form A) configuration, rated for 125A load current across 48V to 660V AC output. This hockey puck-style chassis mount relay features zero-cross switching and is designed for industrial AC switching applications. The part is active in production and RoHS compliant. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity.

Substiute Parts

84134181

Sensata-CrydomIn Stock: 97384134181 Datasheet

Current PartRFQ

84137181N

CrouzetIn Stock: 97984137181N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of SSR relays in this category is determined by electrical and mechanical parameter alignment. The critical parameters for substitution are:

• Circuit Configuration: Must be SPST-NO (1 Form A)
• Load Current Rating: Must be 125 A minimum
• Load Voltage Range: Must cover 48 V to 660 V AC
• Output Type: Must be AC with zero-cross switching
• Package Style: Must be hockey puck form factor
• Termination: Must be screw terminal
• Mounting: Must support chassis mount installation
• Compliance: Must maintain RoHS compliance status

The Crouzet 84137181N meets all substitution criteria for the Sensata-Crydom 84134181. Both parts share identical load current, voltage range, circuit configuration, output type, package style, and termination method. Input voltage specifications differ (Sensata-Crydom: 90–280VAC; Crouzet: 20–265VAC), but both ranges support standard industrial control voltage applications.

Parameter Comparison

Engineering Selection Recommendations

Both the Sensata-Crydom 84134181 and Crouzet 84137181N are active production parts with RoHS compliance and MSL 1 ratings. Selection between these parts should be based on:

• Input Voltage Requirements: The Crouzet 84137181N operates across a wider input voltage range (20–265VAC) compared to the Sensata-Crydom (90–280VAC). Applications requiring operation below 90VAC input require the Crouzet part.
• Supply Chain Availability: Both parts are in stock. Selection may depend on procurement lead times and supplier availability.
• Regulatory Compliance: Both parts meet RoHS requirements and are suitable for applications subject to environmental compliance standards.

Frequently Asked Questions (FAQ)

Q: Can the Crouzet 84137181N directly replace the Sensata-Crydom 84134181?

A: Yes. Both parts share identical load current (125A), load voltage range (48–660VAC), circuit configuration (SPST-NO), output type (AC zero-cross), package style (hockey puck), and termination method (screw terminal). Both are active production parts with RoHS compliance.

Q: What is the difference in input voltage specifications?

A: The Sensata-Crydom 84134181 accepts 90–280VAC input, while the Crouzet 84137181N accepts 20–265VAC input. The Crouzet part supports operation at lower input voltages. Both ranges cover standard industrial control voltages (typically 120VAC or 240VAC).

Q: Are both parts suitable for the same mounting configuration?

A: Yes. Both parts are chassis mount with hockey puck form factor and screw terminal termination, supporting identical mechanical installation.

Q: Do both parts have the same moisture sensitivity rating?

A: Yes. Both parts are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.

Q: Which part should be selected for new designs?

A: Selection should be based on specific input voltage requirements and supply chain considerations. Both parts are active and compliant with current standards.