HA4875 Solid State Relay SPST-NO 75A 48-530V Equivalent & Substitute Parts

Part Overview

The HA4875 is an active Sensata-Crydom solid state relay (SSR) with SPST-NO (1 Form A) configuration, rated for 75A load current and 48-530V output voltage range. This hockey puck-style chassis mount relay operates with AC zero-cross switching and accepts 90-280VAC input control voltage. The part is RoHS compliant and actively manufactured. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, application requirements, or design flexibility within the allowed parameter ranges.

Substiute Parts

HA4875

Sensata-CrydomIn Stock: 992HA4875 Datasheet

Current PartRFQ

84134131

Sensata-CrydomIn Stock: 98284134131 Datasheet

DirectRFQ

84137131N

CrouzetIn Stock: 87284137131N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HA4875 is determined by the following critical parameters:

• Circuit Configuration: Must be SPST-NO (1 Form A)
• Load Current Rating: Must be 75 A minimum
• Output Switching Type: Must be AC with zero-cross capability
• Input Voltage Range: Must accommodate 90-280VAC control signal
• Load Voltage Range: Must support minimum 48V and extend to at least 530V
• Mechanical Form Factor: Must be hockey puck package with chassis mount and screw terminal configuration
• Compliance: Must maintain RoHS compliance

The identified substitute parts meet these criteria with the following distinctions:

84134131 (Sensata-Crydom GN Series): Direct electrical equivalent with extended load voltage range to 660V, maintaining identical input voltage specification and all mechanical parameters.

84137131N (Crouzet GN Series): Manufacturer-recommended alternative with slightly reduced input voltage range (20-265VAC versus 90-280VAC) but equivalent load voltage capability (48-660V) and identical current rating and mechanical configuration.

Parameter Comparison

Engineering Selection Recommendations

HA4875 (Primary Selection): Recommended for applications requiring the specified 48-530V load voltage range with 90-280VAC input control. Active product status and RoHS compliance ensure ongoing availability and regulatory alignment.

84134131 (Direct Substitute): Functionally equivalent to HA4875 with extended load voltage capability to 660V. Identical input voltage specification and all mechanical parameters. Sensata-Crydom manufacture ensures consistent quality and supply chain continuity. Suitable for applications where load voltage may extend beyond 530V.

84137131N (Alternative Substitute): Crouzet-manufactured equivalent with identical load current and voltage range (48-660V). Input voltage range of 20-265VAC is narrower than the main part; applications requiring the full 90-280VAC input range must verify compatibility. RoHS compliance and active product status confirmed. Packaging in box format differs from bulk packaging of primary and first substitute options.

Frequently Asked Questions (FAQ)

Q: Can 84134131 be used as a direct replacement for HA4875?

A: Yes. Both parts share identical circuit configuration (SPST-NO), load current rating (75A), input voltage range (90-280VAC), output switching type (AC zero-cross), mounting type (chassis mount), package form (hockey puck), and termination style (screw terminal). The 84134131 extends the maximum load voltage to 660V, which is compatible with applications designed for the HA4875's 530V maximum.

Q: What is the key difference between 84134131 and 84137131N?

A: Both parts support identical load voltage (48-660V) and load current (75A). The primary difference is the input voltage range: 84134131 accepts 90-280VAC while 84137131N accepts 20-265VAC. Applications requiring the full 90-280VAC input range must use 84134131 or HA4875. Additionally, 84137131N is packaged in box format versus bulk packaging for the other options.

Q: Are all three parts RoHS compliant?

A: Yes. HA4875, 84134131, and 84137131N are all RoHS compliant, meeting regulatory requirements for hazardous substance restrictions.

Q: Can 84137131N be used if the application requires 90-280VAC input control voltage?

A: No. The 84137131N input voltage range is 20-265VAC, which does not fully cover the 90-280VAC specification. Applications requiring the full 90-280VAC input range must use HA4875 or 84134131.

Q: Do all substitute parts use the same screw terminal configuration?

A: Yes. HA4875, 84134131, and 84137131N all use screw terminal termination style, ensuring mechanical compatibility in applications designed for any of these parts.

Q: What is the significance of the hockey puck package form?

A: The hockey puck package is a standardized form factor for high-current solid state relays with chassis mount configuration. All three parts use this package, ensuring mechanical interchangeability in applications with hockey puck-compatible mounting provisions and screw terminal connections.