HARTING 21031111305 Equivalent & Substitute Parts

Part Overview

The HARTING 21031111305 is a 3-position circular connector plug with male pins, IDC termination, and gold-plated mating contacts. This Harax® M12-S series connector is designed for free-hanging in-line applications requiring IP65/IP67 ingress protection. The part is active in production and ROHS3 compliant, making it suitable for industrial and communication system applications. Substitute parts may be required due to inventory constraints, application-specific termination requirements, or performance parameter needs that differ from the original specification.

Substiute Parts

21031111305

HARTINGIn Stock: 97021031111305 Datasheet

Current PartRFQ

C90-3106F10SL-3P

Harwin Inc.In Stock: 1277C90-3106F10SL-3P Datasheet

MFR RecommendedRFQ

EN2C3M20DC

Switchcraft Inc.In Stock: 832EN2C3M20DC Datasheet

MFR RecommendedRFQ

EN2C3M20G3

Switchcraft Inc.In Stock: 993EN2C3M20G3 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HARTING 21031111305 is determined by the following critical parameters:

• Connector Type & Position Count: All substitutes must be male pin plugs with 3 positions to ensure mechanical and electrical compatibility with mating receptacles.
• Mounting Configuration: Free-hanging in-line mounting is required for direct replacement in existing cable assemblies.
• Contact Finish: Gold-plated mating contacts are specified for corrosion resistance and reliable signal transmission.
• Ingress Protection: IP65/IP67 rating is mandatory for environmental sealing in industrial applications.
• Operating Temperature Range: -40°C to 85°C establishes the thermal operating envelope.
• Compliance: ROHS3 compliance and REACH unaffected status are non-negotiable for regulatory conformance.

The substitute parts identified—C90-3106F10SL-3P, EN2C3M20DC, and EN2C3M20G3—meet these core substitution criteria while offering alternative termination methods (solder cup or crimp) and different connector series architectures.

Parameter Comparison

Engineering Selection Recommendations

C90-3106F10SL-3P (Harwin Inc.): This substitute offers solder cup termination in place of IDC, requiring cable assembly rework. The silver contact finish differs from the gold specification, which may affect corrosion resistance in certain environments. Current rating of 13A exceeds the original 4A specification, and voltage rating extends to 500VAC/700VDC. Operating temperature range extends to -55°C to 125°C, providing broader thermal coverage. All parts are ROHS3 compliant and active in production.

EN2C3M20DC (Switchcraft Inc.): This substitute features crimp or solder cup termination with gold-plated contacts matching the original specification. Bayonet lock fastening replaces threaded fastening. Current rating of 2A is lower than the original 4A, and voltage rating is 125VAC/DC. Ingress protection extends to IP68. Operating temperature range matches the original at -40°C to 85°C. ROHS3 compliant and active in production.

EN2C3M20G3 (Switchcraft Inc.): Functionally equivalent to EN2C3M20DC with identical electrical and environmental specifications. Cable opening specification of 0.180" to 0.220" (4.57mm to 5.59mm) is provided, whereas EN2C3M20DC lacks this parameter. Both Switchcraft substitutes are ROHS3 compliant and active in production.

Frequently Asked Questions (FAQ)

Q: Can the C90-3106F10SL-3P replace the HARTING 21031111305 in all applications?

A: The C90-3106F10SL-3P is mechanically and electrically compatible as a 3-position male plug connector. However, termination differs (solder cup vs. IDC), requiring cable assembly modification. The silver contact finish and lower voltage rating (32V vs. 500VAC/700VDC) must be evaluated against application requirements. Current rating of 13A exceeds the original 4A specification.

Q: What is the primary difference between EN2C3M20DC and EN2C3M20G3?

A: Both are Switchcraft EN2™ series 3-position male plug connectors with crimp or solder cup termination and gold-plated contacts. EN2C3M20G3 specifies cable opening dimensions of 0.180" to 0.220" (4.57mm to 5.59mm), while EN2C3M20DC does not provide this parameter. All other electrical and environmental specifications are identical.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. The HARTING 21031111305 and all three substitute parts (C90-3106F10SL-3P, EN2C3M20DC, EN2C3M20G3) are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements.

Q: What are the termination differences among the substitutes?

A: The original HARTING 21031111305 uses IDC (insulation displacement contact) termination. The C90-3106F10SL-3P uses solder cup termination. Both Switchcraft substitutes (EN2C3M20DC and EN2C3M20G3) offer crimp or solder cup termination options. Termination method selection depends on cable assembly equipment and process requirements.

Q: Which substitute has the lowest current rating?

A: Both Switchcraft substitutes (EN2C3M20DC and EN2C3M20G3) have a current rating of 2A, which is lower than the original HARTING specification of 4A. The Harwin C90-3106F10SL-3P has a current rating of 13A, exceeding the original specification.

Q: Do all substitutes maintain the same operating temperature range?

A: The HARTING 21031111305 and both Switchcraft substitutes operate from -40°C to 85°C. The Harwin C90-3106F10SL-3P extends this range to -55°C to 125°C, providing broader thermal capability for extreme environment applications.