SVT861394 Equivalent & Substitute Parts

Part Overview

The SVT861394 is a solid-state relay (SSR) module manufactured by Celduc Inc., configured as a 3PST-NO (3 Form A) relay with a rated load current of 12 A and input voltage of 24VDC. The device operates with AC output at zero-cross switching across a load voltage range of 24 V to 520 V. This part is classified as obsolete and is no longer in active production. Identification of equivalent and substitute parts is necessary to maintain system functionality and ensure continued availability for replacement and new designs.

Substiute Parts

SVT861394

Celduc Inc.In Stock: 897SVT861394 Datasheet

Current PartRFQ

SGT8850200

Celduc Inc.In Stock: 1044SGT8850200 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SVT861394 is based on the following critical parameters that must be maintained or exceeded for functional compatibility:

Circuit Configuration: Both the main part and substitute must maintain the 3PST-NO (3 Form A) relay configuration to preserve the switching topology and control logic of the application.

Output Type: AC output with zero-cross switching capability must be retained to ensure proper operation in AC load applications and maintain electromagnetic compatibility.

Voltage - Input: The substitute must accept the 24VDC control signal. Input voltage ranges that encompass 24VDC are acceptable.

Voltage - Load: The substitute load voltage range must encompass or exceed the original 24 V to 520 V specification to ensure the relay can handle the intended load voltages.

Load Current: The substitute must be rated for a load current equal to or greater than 12 A to safely handle the application current without derating.

Mounting Type: Chassis mount configuration must be preserved for mechanical compatibility with existing installations.

Package / Case: Module package type must be maintained for form-factor compatibility.

The SGT8850200 meets all substitution criteria as a manufacturer-recommended equivalent from Celduc Inc.

Parameter Comparison

Engineering Selection Recommendations

The SGT8850200 is the manufacturer-recommended substitute for the obsolete SVT861394. This substitution is supported by the following factors:

Product Status: The SVT861394 is obsolete and no longer manufactured. The SGT8850200 is an active product in the Celduc Inc. cel3pac® series, ensuring long-term availability and supply chain continuity.

Compliance and Certifications: The SGT8850200 carries RoHS Compliant status and is classified under ECCN EAR99 with HTSUS code 8536.41.0060, meeting current regulatory requirements for electronic components.

Electrical Compatibility: The SGT8850200 exceeds the electrical specifications of the SVT861394 across all critical parameters. The input voltage range of 4 ~ 30VDC encompasses the required 24VDC control signal. The load voltage range of 24 V ~ 640 V exceeds the original 24 V ~ 520 V specification. The load current rating of 50 A significantly exceeds the original 12 A requirement, providing operational margin.

Mechanical and Functional Compatibility: Both devices maintain identical circuit configuration (3PST-NO), output type (AC, Zero Cross), mounting type (Chassis Mount), and package type (Module), ensuring direct functional replacement in existing applications.

Frequently Asked Questions (FAQ)

Q: Can the SGT8850200 directly replace the SVT861394 in existing applications?

A: Yes. The SGT8850200 maintains the same circuit configuration, output type, mounting type, and package type as the SVT861394. The input voltage range encompasses 24VDC, and the load voltage and current ratings exceed the original specifications.

Q: What is the primary reason for substitution?

A: The SVT861394 is obsolete and no longer manufactured. The SGT8850200 is the manufacturer-recommended active equivalent from Celduc Inc.

Q: Are there any electrical derating considerations when using the SGT8850200?

A: No. The SGT8850200 is rated for 50 A load current compared to the original 12 A specification, and its load voltage range of 24 V ~ 640 V exceeds the original 24 V ~ 520 V range. The substitute operates within its rated specifications for all original application parameters.

Q: Does the SGT8850200 have the same termination style as the SVT861394?

A: The SVT861394 specifies screw terminal termination. The SGT8850200 termination style is not specified in the available data. Physical verification of terminal compatibility is required during integration.

Q: What is the difference in on-state resistance between these devices?

A: The SVT861394 on-state resistance is not specified in the available data. The SGT8850200 specifies a maximum on-state resistance of 7.5 mOhms. This lower resistance in the substitute provides improved thermal performance.

Q: Are both devices classified with the same moisture sensitivity level?

A: Yes. Both the SVT861394 and SGT8850200 are classified as MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.

Q: What is the inventory status for these parts?

A: The SVT861394 has 801 pieces in stock as new original inventory. The SGT8850200 has 942 pieces in stock as new original inventory.