Sensata Technologies 84140303 SSR Relay SPST-NO 40A 24-280V Equivalent & Substitute Parts

Part Overview

The Sensata Technologies 84140303 is a solid-state relay (SSR) with SPST-NO (1 Form A) configuration, rated for 40A load current at 24V to 280V AC output. This component features a hockey puck form factor with screw terminal connections and operates on 4-15VDC input control voltage. The 84140303 is classified as obsolete product status. Identifying equivalent and substitute parts is necessary to ensure continued availability for maintenance, repair, and new design implementations where this relay specification remains applicable.

Substiute Parts

84140303

Sensata TechnologiesIn Stock: 106184140303 Datasheet

Current PartRFQ

84140300

Sensata TechnologiesIn Stock: 96684140300 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 84140303 is determined by strict equivalence across the following critical parameters:

• Circuit configuration: SPST-NO (1 Form A) x 2
• Output type: AC
• Input voltage range: 4 ~ 15VDC
• Load voltage range: 24 V ~ 280 V
• Load current rating: 40 A
• Package form factor: Hockey Puck
• Mounting type: Chassis Mount
• Series designation: GN2

The substitute part 84140300 maintains identical electrical specifications and form factor. The primary difference is termination style (Quick Connect 0.250" vs. Screw Terminal) and product status (Active vs. Obsolete). This termination difference represents a mechanical interface change that may require connector adaptation depending on application requirements.

Parameter Comparison

Engineering Selection Recommendations

The 84140300 is the direct electrical equivalent to the 84140303. Selection between these parts should be based on the following factors:

Product Status: The 84140300 carries Active product status with confirmed RoHS compliance, whereas the 84140303 is Obsolete. For new designs or long-term production requirements, the 84140300 is the appropriate selection.

Termination Interface: The 84140303 uses screw terminals while the 84140300 uses quick-connect terminals (0.250" / 6.3mm). Applications currently wired for screw terminal connections require connector adaptation or rewiring to accommodate the 84140300. Applications designed for quick-connect interfaces should specify the 84140300 directly.

Compliance Certifications: Both parts share identical ECCN (EAR99) and HTSUS (8536.41.0060) classifications. The 84140300 provides explicit RoHS compliance documentation, which may be required for certain regulatory or procurement frameworks.

Frequently Asked Questions (FAQ)

Q: Can the 84140300 directly replace the 84140303 in existing installations?

A: Electrical substitution is direct. However, the termination style difference (Quick Connect vs. Screw Terminal) requires mechanical interface evaluation. If the existing installation uses screw terminal connections, connector adaptation or rewiring is necessary.

Q: What is the significance of the termination style difference?

A: Termination style defines the physical connection method. Screw terminals require wire insertion and mechanical fastening. Quick-connect terminals use 0.250" (6.3mm) spade connectors. The electrical performance is equivalent; the difference is mechanical interface only.

Q: Why is the 84140303 listed as Obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The 84140300 remains in active production and is the current equivalent offering from Sensata Technologies.

Q: Are there any electrical performance differences between these parts?

A: No. Both parts maintain identical specifications for input voltage (4-15VDC), load voltage (24-280V AC), load current (40A), circuit configuration (SPST-NO x 2), and package form factor (Hockey Puck).

Q: Does the RoHS compliance difference affect substitution eligibility?

A: RoHS compliance is a regulatory requirement for certain markets and applications. The 84140300 provides explicit RoHS compliance. If RoHS compliance is a requirement for your application, the 84140300 is the appropriate selection.

Q: What packaging options are available?

A: The 84140303 is available in standard packaging. The 84140300 is supplied in Bulk packaging. Packaging format does not affect electrical or mechanical performance.