SH3B-51 Equivalent & Substitute Parts

Part Overview

The SH3B-51 is an 11-position relay socket designed for panel mount applications with solder lug termination. Manufactured by IDEC as part of the RH Series, this component is classified as Active product status. The socket is used with RH Series relays and provides a through-panel mounting solution for solder-based connections. Equivalent and substitute parts are identified based on matching electrical and mechanical specifications to ensure functional compatibility in relay circuit applications.

Substiute Parts

SH3B-51

IDECIn Stock: 740SH3B-51 Datasheet

Current PartRFQ

PT11

Omron Automation and SafetyIn Stock: 764PT11 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SH3B-51 are identified based on the following critical parameters that determine functional interchangeability:

• Number of Positions: 11 positions (electrical contact count must match)
• Mounting Type: Panel Mount (physical installation method)
• Termination Style: Solder Lug (connection interface)
• Type: Socket (functional role in relay circuit)

The PT11 manufactured by Omron Automation and Safety meets all four critical parameters. While the PT11 is part of the LY Series (different from the RH Series), it maintains electrical and mechanical compatibility through matching position count, mounting configuration, and termination method. Both components are classified as Active products with current manufacturing status.

Parameter Comparison

Engineering Selection Recommendations

Both the SH3B-51 and PT11 are Active products with current manufacturing support. The PT11 carries additional compliance certifications: RoHS3 Compliant, REACH Unaffected status, and assigned ECCN (EAR99) and HTSUS (8538.90.8180) classifications. Moisture Sensitivity Level is rated at MSL 1 (Unlimited) for the PT11, indicating no moisture-related handling restrictions.

Selection between these parts should be based on application requirements, supply chain availability, and any specific compliance mandates for the end application. Both components satisfy the core electrical and mechanical requirements for 11-position panel-mount relay socket applications with solder lug termination.

Frequently Asked Questions (FAQ)

Q: What makes PT11 a valid substitute for SH3B-51? A: The PT11 matches all critical substitution parameters: 11-position count, panel mount configuration, solder lug termination, and socket type. Both are Active products from established manufacturers.

Q: Are there differences in relay series compatibility? A: The SH3B-51 is designated for RH Series relays, while the PT11 is designated for LY Series and 3PDT relays. Compatibility depends on the specific relay model being used. Verify relay pin configuration and contact arrangement match the socket position layout.

Q: What is the significance of MSL 1 rating on the PT11? A: MSL 1 (Unlimited) indicates the component has no moisture sensitivity restrictions and requires no special storage or handling precautions related to moisture exposure.

Q: Are both parts suitable for solder-based PCB assembly? A: Yes. Both components feature solder lug termination, making them compatible with standard solder-based assembly processes for panel-mounted applications.

Q: What compliance certifications apply to these parts? A: The SH3B-51 specifications do not list compliance certifications in the provided data. The PT11 is RoHS3 Compliant and REACH Unaffected, with ECCN classification EAR99 and HTSUS code 8538.90.8180.