CB50122807 Equivalent & Substitute Parts Reference

Part Overview

The CB50122807 is an 8-circuit barrier block connector manufactured by Eaton - Electronics Division, part of the Magnum® CB5000 series. This component functions as a chassis/panel-mounted terminal block with screw termination on the top and solder turret termination on the bottom, designed for applications requiring 10A current capacity at 300V.

The CB50122807 carries an obsolete product status. Identifying equivalent substitute parts is necessary to maintain system functionality, ensure design continuity, and support ongoing maintenance and production requirements where original components are no longer available from the manufacturer.

Substiute Parts

CB50122807

Eaton - Electronics DivisionIn Stock: 657CB50122807 Datasheet

Current PartRFQ

3WWV-08-008

TE Connectivity AMP ConnectorsIn Stock: 11823WWV-08-008 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CB50122807 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Terminal Block Type: Barrier Block
• Number of Circuits: 8
• Pitch: 0.250" (6.35mm)
• Current Rating: 10A
• Voltage Rating: 300V
• Top Termination: Screws with Captive Plate
• Barrier Type: 3 Wall (Tri)
• Material Flammability Rating: UL94 V-0

Allowable Variations:

• Wire Gauge: Substitute must accommodate the original wire gauge range or a compatible superset
• Bottom Termination: May differ from solder turret if electrical function is preserved
• Mounting Type: May differ based on application requirements
• Operating Temperature: Substitute minimum rating must not fall below original specification
• RoHS Compliance: Substitute may exceed original compliance status
• Product Status: Active status preferred for ongoing availability

The substitute part 3WWV-08-008 meets all mandatory matching parameters and represents a direct functional equivalent.

Parameter Comparison

Engineering Selection Recommendations

The 3WWV-08-008 manufactured by TE Connectivity AMP Connectors is a direct functional substitute for the obsolete CB50122807. Selection of this substitute is supported by the following engineering factors:

Electrical Equivalence: Both components share identical circuit count (8), pitch (0.250"), current rating (10A), and voltage rating (300V). The wire gauge specification of 3WWV-08-008 (16-30 AWG) encompasses the original specification (18-30 AWG), ensuring compatibility with existing wire sizing practices.

Mechanical Compatibility: Both components feature identical barrier block construction with 3-wall (tri) barrier configuration, screw termination with captive plate, and single-row layout. Physical footprint and mounting hole patterns are equivalent.

Compliance and Reliability: The 3WWV-08-008 carries active product status with current manufacturing support, ensuring long-term availability. RoHS compliance of the substitute exceeds the original non-compliant status, supporting modern regulatory requirements. UL94 V-0 flammability rating is maintained across both components.

Termination Consideration: The substitute features wire wrap bottom termination versus the original solder turret termination. This represents a functional variation that must be evaluated against specific application requirements. Wire wrap termination provides equivalent electrical connection capability for applications where this termination method is acceptable.

Temperature Performance: The substitute operating temperature specification (120°C minimum) exceeds the original specification (-40°C ~ 105°C), providing enhanced thermal margin for demanding applications.

Frequently Asked Questions (FAQ)

Q: Can the 3WWV-08-008 be used as a direct replacement for CB50122807 in existing designs?

A: The 3WWV-08-008 is electrically and mechanically equivalent for all critical parameters. The primary design consideration is the bottom termination method: the substitute uses wire wrap termination instead of solder turret. If the original design accommodates wire wrap termination or if the bottom termination method can be adapted, direct substitution is feasible. Physical footprint and mounting compatibility are confirmed.

Q: What is the significance of the wire gauge difference (18-30 AWG vs. 16-30 AWG)?

A: The substitute 3WWV-08-008 accepts a wider wire gauge range (16-30 AWG) compared to the original CB50122807 (18-30 AWG). This represents an expansion of capability. Existing designs using 18-30 AWG wire are fully compatible with the substitute. The additional 16 AWG capacity of the substitute does not create incompatibility with the original specification.

Q: Does the RoHS compliance difference affect substitution?

A: The 3WWV-08-008 is RoHS compliant while the CB50122807 is RoHS non-compliant. For applications subject to RoHS regulations, the substitute provides compliance improvement. For legacy systems without RoHS requirements, this difference does not affect electrical or mechanical function. The substitute may be selected based on regulatory environment.

Q: Are there inventory considerations for this substitution?

A: The CB50122807 has 634 pieces in stock (obsolete status). The 3WWV-08-008 has 1111 pieces in stock with active product status. For ongoing production or maintenance requirements, the substitute offers superior long-term availability due to active manufacturing status.

Q: How do the operating temperature ranges compare?

A: The CB50122807 operates from -40°C to 105°C. The 3WWV-08-008 operates at a minimum of 120°C. The substitute provides higher temperature capability, which is advantageous for thermal margin but does not create incompatibility with the original specification range.

Q: What is the impact of different bottom termination methods?

A: The original CB50122807 uses solder turret termination on the bottom. The substitute 3WWV-08-008 uses wire wrap termination. Both methods provide electrical connection capability. The selection between these termination methods depends on the specific application's PCB design, assembly process, and connection requirements. This is the primary design consideration for substitution feasibility.