Equivalent & Substitute Parts for CB20712607

Part Overview

The CB20712607 is a 26-circuit barrier block connector manufactured by Eaton - Electronics Division, part of the Magnum® CB2000 series. This through-hole mounted terminal block features 0.375" (9.53mm) pitch spacing with screw termination and captive plate design for top connection and PC pin termination for bottom connection. The component is classified as obsolete, necessitating identification of active substitute components that maintain functional and electrical compatibility for applications requiring 26-circuit barrier block connectivity.

Substiute Parts

CB20712607

Eaton - Electronics DivisionIn Stock: 1196CB20712607 Datasheet

Current PartRFQ

T37068-26-0

Curtis IndustriesIn Stock: 954T37068-26-0 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of CB20712607 with T37068-26-0 is based on the following alignment of critical parameters:

Matching Parameters (Substitution Basis):

• Terminal Block Type: Both are Barrier Block connectors
• Number of Circuits: Both provide 26 circuits
• Pitch: Both maintain 0.375" (9.53mm) spacing
• Voltage Rating: Both rated at 300V
• Wire Gauge: Both accept 12-22 AWG wire
• Top Termination: Both feature Screws with Captive Plate
• Barrier Type: Both utilize 3 Wall (Tri) barrier configuration
• Material Flammability Rating: Both meet UL94 V-0 standard

Differing Parameters (Functional Considerations):

• Current Rating: CB20712607 rated 30A; T37068-26-0 rated 20A
• Bottom Termination: CB20712607 uses PC Pin; T37068-26-0 uses Wire Wrap
• Mounting Type: CB20712607 is Through Hole only; T37068-26-0 supports Chassis, Panel, and Through Hole
• Product Status: CB20712607 is Obsolete; T37068-26-0 is Active
• RoHS Compliance: CB20712607 is non-compliant; T37068-26-0 is ROHS3 Compliant

Parameter Comparison

Engineering Selection Recommendations

Substitution Feasibility:

T37068-26-0 serves as a functional substitute for CB20712607 based on matching core electrical and mechanical parameters: identical circuit count, pitch, voltage rating, wire gauge acceptance, and barrier configuration. Both components meet UL94 V-0 flammability requirements and support identical top-side screw termination with captive plate.

Critical Considerations:

1. Current Rating Reduction: T37068-26-0 is rated for 20A maximum current versus CB20712607's 30A rating. Applications requiring current levels between 20A and 30A cannot use T37068-26-0 as a direct substitute.

2. Bottom Termination Difference: CB20712607 terminates to PC pins; T37068-26-0 uses wire wrap termination. PCB layout and connection methodology must accommodate this difference.

3. Compliance Advantage: T37068-26-0 holds ROHS3 compliance status, whereas CB20712607 is non-compliant. For applications subject to RoHS regulations, T37068-26-0 provides regulatory alignment.

4. Product Status: T37068-26-0 is active production status with 938 units in stock, ensuring supply continuity. CB20712607 is obsolete with limited remaining inventory (1163 units).

5. Mounting Flexibility: T37068-26-0 supports chassis and panel mounting in addition to through-hole, providing greater design flexibility.

Frequently Asked Questions (FAQ)

Q: Can T37068-26-0 replace CB20712607 in all applications?

A: T37068-26-0 is suitable for applications where current requirements do not exceed 20A. If the original design requires 20A to 30A current capacity, T37068-26-0 is not appropriate. Verify actual circuit current draw before substitution.

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

A: CB20712607 uses PC pin termination for direct PCB mounting. T37068-26-0 uses wire wrap termination, requiring connection via wire wrap posts. PCB footprint and assembly method must be compatible with wire wrap termination. These are not interchangeable on the same PCB layout.

Q: Does the pitch difference affect physical fit?

A: Both components maintain identical 0.375" (9.53mm) pitch spacing. Physical fit in existing mounting locations is compatible.

Q: Are there voltage or insulation differences?

A: Both components are rated 300V with UL94 V-0 flammability rating. Electrical insulation specifications are equivalent.

Q: What wire gauges are supported?

A: Both CB20712607 and T37068-26-0 accept 12-22 AWG wire. Wire gauge compatibility is identical.

Q: Does RoHS compliance affect electrical performance?

A: RoHS3 compliance in T37068-26-0 reflects material composition changes but does not alter electrical performance or ratings relative to CB20712607. Compliance status is a regulatory consideration, not a functional one.

Q: What is the operating temperature range?

A: CB20712607 operates -40°C to 105°C. T37068-26-0 is specified to 105°C maximum. Verify minimum temperature requirements; T37068-26-0 may not be suitable for applications below -40°C if such operation is required.

Q: Are there packaging differences?

A: CB20712607 packaging is not specified. T37068-26-0 is supplied in bulk packaging. Confirm packaging requirements for assembly and handling procedures.