SVT869394 Solid State Relay SPST-NO 50A 24-520V Equivalent & Substitute Parts

Part Overview

The SVT869394 is a Solid State Relay (SSR) manufactured by Celduc Inc., configured as a Single Pole Single Throw Normally Open (SPST-NO) module with a 50A load current capacity and input voltage of 24VDC. The device operates with AC loads ranging from 24V to 520V and incorporates zero-cross switching technology for AC output control.

This part is classified as Obsolete. Locating equivalent or substitute components is necessary to maintain system functionality and ensure continued availability for replacement or new design implementations.

Substiute Parts

SVT869394

Celduc Inc.In Stock: 820SVT869394 Datasheet

Current PartRFQ

SGT8690500

Celduc Inc.In Stock: 945SGT8690500 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete SVT869394 is based on the following critical parameters that must be evaluated for functional compatibility:

Input Voltage Compatibility: The SVT869394 operates with a fixed 24VDC input. Substitute parts must accept 24VDC input or operate within a range that includes 24VDC.

Load Voltage Range: The device controls AC loads from 24V to 520V. Substitute parts must support this full voltage range to maintain compatibility with existing load circuits.

Output Type and Switching Characteristics: The SVT869394 features AC output with zero-cross switching. Substitute parts must retain AC output capability with zero-cross functionality to preserve system performance and reduce electromagnetic interference.

Mounting and Package Form Factor: The SVT869394 is a chassis-mount module. Substitute parts must maintain the same mounting type and module package configuration to ensure mechanical fit within existing enclosures.

Electrical Compliance: RoHS compliance and MSL rating must be maintained or exceeded in substitute parts to meet regulatory and environmental requirements.

The SGT8690500 is identified as a manufacturer-recommended substitute based on these parameters.

Parameter Comparison

Engineering Selection Recommendations

SGT8690500 as Primary Substitute:

The SGT8690500 is the manufacturer-recommended substitute for the obsolete SVT869394. Both devices are manufactured by Celduc Inc. and share identical load voltage range (24V ~ 520V), output type (AC with zero-cross switching), mounting configuration (chassis mount), and module package form factor.

The SGT8690500 input voltage range of 4 ~ 30VDC encompasses the SVT869394 fixed 24VDC input specification, ensuring direct compatibility with existing control circuits.

The SGT8690500 is classified as Active product status, ensuring ongoing availability and manufacturer support. Both parts maintain RoHS compliance and MSL rating of 1 (Unlimited), meeting regulatory and environmental requirements.

The SGT8690500 features a higher load current rating of 125A compared to the SVT869394 50A rating. This increased capacity provides additional design margin and does not create incompatibility with applications designed for the lower current rating.

The SGT8690500 is configured as 3PST-NO (3 Form A) versus the SVT869394 SPST-NO (1 Form A). Applications requiring single-pole switching can utilize one of the three available poles, with the remaining poles left unused or configured for additional load control as needed.

Frequently Asked Questions (FAQ)

Q: Can the SGT8690500 directly replace the SVT869394 in existing applications?

A: The SGT8690500 is compatible with applications designed for the SVT869394 when the following conditions are met: the control circuit supplies 24VDC input (within the SGT8690500 range of 4 ~ 30VDC), the load voltage remains within 24V ~ 520V, and the mechanical mounting configuration accommodates the module package. The SGT8690500 provides higher current capacity (125A versus 50A) and additional switching poles (3PST-NO versus SPST-NO), neither of which creates incompatibility.

Q: What is the significance of the circuit configuration difference between SPST-NO and 3PST-NO?

A: SPST-NO indicates a single pole with one normally open contact. 3PST-NO indicates three independent poles, each with a normally open contact. Applications requiring single-pole switching can utilize one pole of the SGT8690500, leaving the additional two poles unused. This configuration provides flexibility for future expansion or multi-load control within a single module.

Q: Are there input voltage compatibility concerns when substituting the SVT869394 with the SGT8690500?

A: No. The SVT869394 operates at fixed 24VDC input. The SGT8690500 accepts input voltage from 4 ~ 30VDC, which includes 24VDC. Existing control circuits supplying 24VDC to the SVT869394 will operate within the SGT8690500 specification range without modification.

Q: Does the higher load current rating of the SGT8690500 (125A versus 50A) affect compatibility?

A: No. Higher current capacity does not create incompatibility with applications designed for lower current ratings. The SGT8690500 will operate correctly in circuits where the actual load current does not exceed 50A. The increased rating provides additional design margin and supports higher-current applications without requiring component changes.

Q: Are RoHS compliance and moisture sensitivity ratings identical between the two parts?

A: Yes. Both the SVT869394 and SGT8690500 are RoHS Compliant and carry an MSL rating of 1 (Unlimited). These specifications are identical, ensuring equivalent environmental and regulatory compliance.

Q: What is the significance of the SGT8690500 being classified as Active product status?

A: Active product status indicates that the SGT8690500 is currently manufactured and supported by Celduc Inc. This ensures ongoing availability for procurement, technical support, and future design implementations. The SVT869394 is classified as Obsolete, meaning it is no longer manufactured and availability is limited to existing inventory.