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

Part Overview

The PB-8M-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-8M-C

Sensata-CrydomIn Stock: 883PB-8M-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-8M-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 rating match)

The substitute parts listed below maintain these core parameters, ensuring mechanical and electrical compatibility within rack-mounted I/O applications. Both substitute parts are manufactured by Grayhill Inc. and belong to the System 50 series, which provides active product status and ongoing availability.

Parameter Comparison

Engineering Selection Recommendations

For applications currently using the obsolete PB-8M-C, the 70MRCK8-HL represents the primary substitute option. This part maintains identical connector type specifications (Header and Screw Terminal Blocks), ensuring direct compatibility with existing interface requirements. Both substitute parts are active products with established supply chains through Grayhill Inc.

The 70MRCK8-EC provides an alternative where card edge connectors are acceptable in place of header connectors. Selection between 70MRCK8-HL and 70MRCK8-EC depends on specific connector interface requirements within the target application.

Both substitute parts maintain equivalent environmental ratings (MSL 1, Unlimited), export classifications (EAR99), and REACH compliance status, supporting regulatory continuity in system implementations.

Frequently Asked Questions (FAQ)

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

A: Yes. The 70MRCK8-HL maintains all critical parameters including 8-channel configuration, mini style, standoff mounting, and header/screw terminal block connectors. The primary difference is the active product status of the substitute versus the obsolete status of the original part.

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

A: Both parts share identical channel count, style, mounting type, and environmental ratings. The key difference is connector type: 70MRCK8-HL uses header and screw terminal blocks, while 70MRCK8-EC uses card edge and screw terminal blocks. Selection depends on the connector interface requirements of your application.

Q: Are there RoHS compliance differences?

A: The PB-8M-C RoHS status is not specified in available documentation. Both Grayhill substitutes (70MRCK8-HL and 70MRCK8-EC) are RoHS non-compliant. If RoHS compliance is required, this must be evaluated against your specific regulatory requirements.

Q: Do the substitute parts have the same packaging?

A: The PB-8M-C packaging is listed as dash (unspecified). Both Grayhill substitutes are supplied in bulk packaging. Confirm packaging requirements with your procurement process.

Q: Are moisture sensitivity levels equivalent?

A: Yes. All three parts maintain MSL 1 (Unlimited), indicating identical environmental handling and storage requirements.