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

Part Overview

The PB-8SM-V is an 8-channel I/O module rack manufactured by Sensata-Crydom, designed for industrial control and signal distribution applications. This product is classified as obsolete, making identification of functionally equivalent alternatives essential for system maintenance, repair, and new design implementations where legacy compatibility is not required.

Substiute Parts

PB-8SM-V

Sensata-CrydomIn Stock: 1149PB-8SM-V 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-V 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)
• Moisture Sensitivity Level: 1 (Unlimited) (environmental tolerance match)
• REACH Status: REACH Unaffected (regulatory alignment)
• ECCN: EAR99 (export classification alignment)

The substitute parts listed below maintain these core parameters while originating from an alternative manufacturer (Grayhill Inc., System 50 series). Connector type variations exist between the main part and substitutes and are documented in the parameter comparison table.

Parameter Comparison

Engineering Selection Recommendations

70MRCK8-HL (Grayhill Inc.) is the primary substitute for PB-8SM-V. This part maintains identical connector type configuration (Header, Screw Terminal Blocks) and all critical electrical and mechanical parameters. The 70MRCK8-HL is currently in active production status with 1002 units in stock, ensuring availability for immediate deployment.

70MRCK8-EC (Grayhill Inc.) is an alternative substitute with equivalent channel count, style, mounting, and environmental specifications. The primary distinction is the connector type configuration, which includes Card Edge connectors in addition to Screw Terminal Blocks. This variant is suitable for applications where Card Edge connectivity is compatible with system architecture. The 70MRCK8-EC is active production status with 750 units in stock.

Both substitute parts are manufactured by Grayhill Inc. (System 50 series) and carry identical REACH and ECCN classifications as the original part. Both are classified as RoHS non-compliant, which should be evaluated against system-level compliance requirements.

Frequently Asked Questions (FAQ)

Q: Can 70MRCK8-HL directly replace PB-8SM-V in existing installations?

A: The 70MRCK8-HL maintains identical connector type (Header, Screw Terminal Blocks), mounting method (Standoffs), channel count (8), and environmental specifications (MSL 1). Physical form factor and electrical interface compatibility must be verified against specific system integration requirements.

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

A: Both parts are functionally equivalent 8-channel I/O modules with identical channel count, style, mounting, and environmental ratings. The 70MRCK8-EC includes Card Edge connectors in addition to Screw Terminal Blocks, while the 70MRCK8-HL uses Header and Screw Terminal Blocks. Selection depends on the connector interface required by the target system.

Q: Why is PB-8SM-V classified as obsolete?

A: The PB-8SM-V is no longer in active production by Sensata-Crydom. The substitute parts listed provide equivalent functionality from an active manufacturer, ensuring long-term availability and support.

Q: Are there RoHS compliance considerations for these substitutes?

A: Both Grayhill substitute parts (70MRCK8-HL and 70MRCK8-EC) are classified as RoHS non-compliant. System-level RoHS compliance requirements must be evaluated independently.

Q: What is the inventory status of these substitute parts?

A: 70MRCK8-HL: 1002 units in stock; 70MRCK8-EC: 750 units in stock. Both are available for immediate procurement.