Molex 0387106912 Equivalent & Substitute Parts

Part Overview

The Molex 0387106912 is a 12-circuit barrier block connector with 0.375" (9.53mm) pitch, designed for screw-terminated applications in industrial control and power distribution systems. This component features dual-wall barrier construction, PC pin bottom termination, and through-hole mounting. The part is active in production with 787 units currently in stock. Equivalent parts are identified when mechanical compatibility, electrical ratings, and termination methods align within specified tolerances for direct board-level substitution.

Substiute Parts

0387106912

MolexIn Stock: 8720387106912 Datasheet

Current PartRFQ

T38112-12-0

Curtis IndustriesIn Stock: 901T38112-12-0 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0387106912 is determined by the following critical parameters:

Mechanical Compatibility:

• 12-circuit configuration with 0.375" (9.53mm) pitch spacing
• Dual-wall barrier block construction
• PC pin bottom termination for PCB mounting
• Through-hole mounting capability

Electrical Compatibility:

• Screw-type top termination for wire connection
• 300V voltage rating minimum
• Wire gauge acceptance range that includes 14-22 AWG
• Current rating of 15A or higher

Environmental & Compliance:

• Operating temperature range that encompasses -40°C to 100°C
• ROHS3 compliance
• Moisture sensitivity level 1 (unlimited shelf life)

The Curtis Industries T38112-12-0 meets all mechanical and electrical substitution criteria while exceeding performance specifications in current rating and maximum operating temperature.

Parameter Comparison

Engineering Selection Recommendations

The Curtis Industries T38112-12-0 is a direct functional equivalent to the Molex 0387106912 for applications requiring 12-circuit barrier block connectors with 0.375" pitch and screw termination. Both parts maintain ROHS3 compliance and identical electrical specifications at the rated voltage and current levels.

The Curtis Industries substitute provides enhanced performance margins: 20A current rating versus 15A, extended operating temperature to 105°C, and broader wire gauge acceptance (12-22 AWG). These characteristics make the T38112-12-0 suitable for applications with higher current demands or elevated thermal environments while maintaining full mechanical and electrical compatibility with existing PCB designs.

Selection between these parts should be based on application current requirements, thermal environment, and wire gauge specifications. Both parts are active production items with established supply availability.

Frequently Asked Questions (FAQ)

Q: Can the Curtis Industries T38112-12-0 be used as a direct replacement for the Molex 0387106912 on existing PCBs?

A: Yes. Both parts share identical circuit count (12), pitch spacing (0.375"), barrier configuration (dual-wall), termination methods (screw top, PC pin bottom), and mounting type (through-hole). PCB footprints are mechanically compatible.

Q: What are the key differences between these two parts?

A: The Curtis Industries part exceeds the Molex specification in three areas: current rating (20A vs. 15A), maximum operating temperature (105°C vs. 100°C), and wire gauge range (12-22 AWG vs. 14-22 AWG). All other electrical and mechanical parameters are identical.

Q: Are both parts RoHS compliant?

A: Yes. Both the Molex 0387106912 and Curtis Industries T38112-12-0 are ROHS3 compliant.

Q: Which part should be selected for high-current applications?

A: The Curtis Industries T38112-12-0 is rated for 20A, making it suitable for applications exceeding the 15A rating of the Molex part. Verify application current requirements against the selected part's rating.

Q: Do these parts accept the same wire gauge range?

A: The Curtis Industries T38112-12-0 accepts 12-22 AWG wire, while the Molex 0387106912 accepts 14-22 AWG. The Curtis part accommodates larger gauge conductors (12 AWG and 13 AWG).

Q: What is the operating temperature range for each part?

A: Molex 0387106912 operates from -40°C to 100°C. Curtis Industries T38112-12-0 operates from -40°C to 105°C. Select based on application thermal requirements.