CT-38 Equivalent & Substitute Parts

Part Overview

The CT-38 is a 38-circuit barrier block connector manufactured by Curtis Industries, designed for chassis and panel mounting applications requiring high-density terminal connections. This component features dual-wall barrier construction with screw termination on the top and closed termination on the bottom, rated for 30A at 600V with wire gauge compatibility from 10-22 AWG.

The CT-38 is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain system functionality and ensure continued availability for replacement, repair, and new installations where this connector type is specified.

Substiute Parts

CT-38

Curtis IndustriesIn Stock: 940CT-38 Datasheet

Current PartRFQ

CDM-38

Curtis IndustriesIn Stock: 885CDM-38 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CT-38 is determined by strict equivalence across the following critical parameters:

• Number of circuits: 38
• Pitch spacing: 0.546" (13.86mm)
• Current rating: 30A
• Voltage rating: 600V
• Wire gauge range: 10-22 AWG
• Termination type: Screw top, closed bottom
• Barrier construction: 2 Wall (Dual)
• Mounting configuration: Chassis and panel mount
• Operating temperature: 130°C
• Insulation material: Polyester Thermoplastic
• Flammability compliance: UL94 V-0

The CDM-38 meets all these parameters and qualifies as a direct substitute for the CT-38.

Parameter Comparison

Engineering Selection Recommendations

The CDM-38 is the direct substitute for the CT-38. Both components are manufactured by Curtis Industries and share identical electrical and mechanical specifications across all critical parameters.

The CDM-38 offers the advantage of active product status, ensuring continued availability and supply chain reliability. The CDM-38 maintains RoHS3 compliance, which represents an updated compliance standard relative to the CT-38's RoHS compliance designation. Both parts meet REACH unaffected status and carry identical export classification (EAR99) and tariff codes.

For applications currently specified with CT-38 connectors, the CDM-38 provides full functional and physical compatibility without design modification or re-qualification.

Frequently Asked Questions (FAQ)

Q: Can the CDM-38 be used as a direct replacement for the CT-38?

A: Yes. The CDM-38 is electrically and mechanically equivalent to the CT-38. All critical parameters—circuit count, pitch spacing, current and voltage ratings, wire gauge compatibility, termination type, barrier construction, and operating temperature—are identical between the two parts.

Q: What is the difference between RoHS and ROHS3 compliance?

A: Both designations indicate compliance with Restriction of Hazardous Substances regulations. ROHS3 represents the current compliance standard. The CDM-38's ROHS3 status reflects updated regulatory alignment while maintaining the same material restrictions as the CT-38.

Q: Are there packaging differences between CT-38 and CDM-38?

A: The CT-38 is listed with unspecified packaging, while the CDM-38 is supplied in bulk packaging. Both parts are identical in form, fit, and function. Packaging selection should be based on procurement and inventory requirements.

Q: Why is the CT-38 classified as obsolete?

A: The CT-38 has been superseded by the CDM-38 in the Curtis Industries product line. The CDM-38 maintains all functional specifications while offering active product status and current compliance certifications.

Q: Are there any circuit or pitch variations available?

A: The specifications provided cover the 38-circuit, 0.546" pitch configuration only. Other circuit counts or pitch spacings would require different part numbers and are outside the scope of this substitution analysis.