PB-8SM-C I/O Module Rack 8 Channel Equivalent & Substitute Parts

Part Overview

The PB-8SM-C is an I/O Module Rack with 8 channels manufactured by Sensata-Crydom. This component is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system maintenance and new design implementations. The module features a mini-style form factor with header and screw terminal block connectors, designed for rack-mounted I/O applications.

Substiute Parts

PB-8SM-C

Sensata-CrydomIn Stock: 1043PB-8SM-C Datasheet

Current PartRFQ

70MRCK8-EC

Grayhill Inc.In Stock: 82670MRCK8-EC Datasheet

SimilarRFQ

70MRCK8-HL

Grayhill Inc.In Stock: 105170MRCK8-HL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PB-8SM-C are identified based on the following critical parameters that determine functional equivalence:

• Number of Channels: 8 (exact match required)
• Style: Mini (form factor compatibility)
• Mounting Type: Standoffs (mechanical compatibility)
• Connector Type: Header and/or Screw Terminal Blocks (interface compatibility)
• Moisture Sensitivity Level: 1 (Unlimited) (environmental tolerance match)

The substitute parts listed below maintain these core parameters, ensuring mechanical and functional compatibility within rack-mounted I/O applications. Connector type variations are permitted where both header and screw terminal block options are available across the substitute lineup.

Parameter Comparison

Engineering Selection Recommendations

For applications currently using the obsolete PB-8SM-C, the 70MRCK8-HL represents the primary substitute option. This part maintains identical connector type specifications (Header and Screw Terminal Blocks) and is manufactured by Grayhill Inc. with active product status, ensuring ongoing availability and support.

The 70MRCK8-EC serves as an alternative where card edge connectors are acceptable in place of header connectors. Both Grayhill substitutes maintain the required 8-channel configuration, mini form factor, standoff mounting, and unlimited moisture sensitivity rating.

Both substitute parts are REACH Unaffected and classified under ECCN EAR99, maintaining regulatory compliance alignment with the original component.

Frequently Asked Questions (FAQ)

Q: Can the 70MRCK8-HL directly replace the PB-8SM-C?

A: Yes. The 70MRCK8-HL maintains all critical parameters: 8 channels, mini style, header and screw terminal block connectors, standoff mounting, and MSL 1 (Unlimited). The primary difference is manufacturer and active product status.

Q: What is the difference between 70MRCK8-HL and 70MRCK8-EC?

A: Both parts share 8 channels, mini style, standoff mounting, and MSL specifications. The 70MRCK8-HL uses header and screw terminal block connectors, while the 70MRCK8-EC uses card edge and screw terminal block connectors. Selection depends on connector interface requirements in your application.

Q: Why is the PB-8SM-C listed as obsolete?

A: Obsolete status indicates the part is no longer manufactured by Sensata-Crydom. The listed substitute parts provide equivalent functionality with active manufacturing status.

Q: Are there packaging differences between these parts?

A: The PB-8SM-C is packaged with a dash designation, while both Grayhill substitutes are supplied in bulk packaging. Verify packaging requirements for your procurement process.

Q: Do all parts meet the same environmental standards?

A: Yes. All three parts maintain MSL 1 (Unlimited), REACH Unaffected status, and EAR99 ECCN classification, ensuring equivalent environmental and regulatory compliance.