DCMM37PHA101 D-Sub 37-Position Plug Connector - Equivalent & Substitute Parts

Part Overview

The DCMM37PHA101 is a 37-position D-Sub plug connector manufactured by ITT Cannon, LLC, featuring male pins, panel mount through-hole termination, and solder connectivity. This connector is classified as active product status and serves as a standard interface component in applications requiring multi-pin signal distribution across two-row configurations with shell size 4 (DC, C) layout.

Substitute parts become necessary when the primary part experiences supply constraints, when design requirements demand alternative compliance certifications (such as RoHS3 compliance), or when operational parameters such as current rating or temperature range require adjustment for specific application demands.

Substiute Parts

DCMM37PHA101

ITT Cannon, LLCIn Stock: 828DCMM37PHA101 Datasheet

Current PartRFQ

1218124-4

TE Connectivity Aerospace, Defense and MarineIn Stock: 11971218124-4 Datasheet

SimilarRFQ

627-037-220-041

Mercury United Electronics, Inc.In Stock: 818627-037-220-041 Datasheet

SimilarRFQ

627-037-220-047

Mercury United Electronics, Inc.In Stock: 996627-037-220-047 Datasheet

SimilarRFQ

M24308/24-10F

TE Connectivity Aerospace, Defense and MarineIn Stock: 1094M24308/24-10F Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DCMM37PHA101 is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Connector style: D-Sub
• Connector type: Plug, Male Pins
• Number of positions: 37
• Number of rows: 2
• Shell size, connector layout: 4 (DC, C)
• Termination method: Solder
• Contact finish: Gold

Allowable Variation Parameters:

• Mounting type: Panel mount or through hole configurations
• Current rating: Substitutes may have lower current ratings (5A, 3A per contact) if application requirements permit
• Operating temperature range: Substitutes may have narrower ranges (-55°C ~ 125°C, -55°C ~ 85°C) if application environment is within specified limits
• Shell material finish: Alternative plating systems (cadmium, nickel) are acceptable
• Contact material: Brass or copper alloy
• Dielectric material: Alternative thermoplastic materials acceptable
• RoHS compliance status: May differ from main part
• Flammability rating: May differ or be unspecified

The four substitute parts listed (1218124-4, 627-037-220-041, 627-037-220-047, M24308/24-10F) meet all mandatory matching parameters and represent valid alternatives within the allowable variation framework.

Parameter Comparison

Engineering Selection Recommendations

For applications requiring maximum current capacity and extended temperature range: The DCMM37PHA101 remains the primary choice with 7.5A current rating and -55°C ~ 150°C operating range. No substitute part matches these specifications.

For applications compatible with 5A current rating and -55°C ~ 125°C range: Both 1218124-4 and M24308/24-10F from TE Connectivity Aerospace, Defense and Marine are direct functional equivalents. These parts maintain MIL-DTL-24308 compliance and identical contact finish specifications (50.0µin gold plating). Selection between these two depends on packaging requirements (bulk for both) and specific design integration needs.

For applications requiring RoHS3 compliance: Parts 627-037-220-041 and 627-037-220-047 from Mercury United Electronics, Inc. are the only substitutes meeting ROHS3 compliance. These parts operate within -55°C ~ 85°C range and feature 3A per contact current rating. The 627-037-220-047 includes board lock and grounding indent features. Selection depends on whether the narrower temperature range and reduced current capacity align with application requirements.

For applications with reduced current demands (3A per contact or lower): Mercury United Electronics parts (627-037-220-041 and 627-037-220-047) are suitable alternatives. Both feature UL94 V-0 flammability rating and ROHS3 compliance, with nickel-plated steel shells and flash gold contact finish.

For military or aerospace applications: TE Connectivity parts (1218124-4 and M24308/24-10F) maintain MIL-DTL-24308 series designation and AMPLIMITE 109 classification, supporting applications requiring military specification compliance.

Frequently Asked Questions (FAQ)

Q: Can 627-037-220-041 or 627-037-220-047 be used as direct replacements for DCMM37PHA101?

A: These parts are functionally compatible for applications where current requirements do not exceed 3A per contact and operating temperature remains within -55°C ~ 85°C. The 37-position, 2-row D-Sub configuration, shell size 4 (DC, C), solder termination, and gold contact finish are identical. However, the reduced current rating and narrower temperature range represent design constraints that must be evaluated against application specifications.

Q: What is the difference between 627-037-220-041 and 627-037-220-047?

A: Both parts are manufactured by Mercury United Electronics with identical electrical and thermal specifications. The primary difference is mounting configuration: 627-037-220-041 features board side (4-40) flange with grounding indents and shielding, while 627-037-220-047 adds board lock feature in addition to grounding indents and shielding. Packaging differs (bulk versus tube). Selection depends on mechanical mounting requirements and assembly process compatibility.

Q: Are 1218124-4 and M24308/24-10F interchangeable?

A: Yes. Both parts are manufactured by TE Connectivity Aerospace, Defense and Marine, share MIL-DTL-24308 series designation and AMPLIMITE 109 classification, and feature identical electrical specifications (5A current rating, -55°C ~ 125°C operating range, 50.0µin gold contact finish, cadmium-plated steel shell). Both are packaged in bulk. Selection between these parts depends on specific design documentation requirements or inventory availability.

Q: Why does DCMM37PHA101 have higher current rating than substitute parts?

A: The DCMM37PHA101 is rated for 7.5A total connector current, while TE Connectivity substitutes are rated 5A and Mercury United Electronics substitutes are rated 3A per contact. These differences reflect design variations in contact geometry, material composition, and thermal management characteristics. Applications requiring current levels above 5A must retain the DCMM37PHA101 or evaluate alternative connector families.

Q: What compliance considerations apply when selecting substitutes?

A: The DCMM37PHA101 and TE Connectivity substitutes (1218124-4, M24308/24-10F) are RoHS non-compliant. Mercury United Electronics substitutes (627-037-220-041, 627-037-220-047) are ROHS3 compliant. Applications subject to RoHS3 regulatory requirements must use Mercury United Electronics parts. Applications in non-RoHS jurisdictions may use any substitute meeting functional requirements.

Q: Can substitutes be used in applications requiring -55°C ~ 150°C operation?

A: No. All substitute parts have maximum operating temperatures below 150°C (TE Connectivity: 125°C maximum; Mercury United Electronics: 85°C maximum). Applications requiring full -55°C ~ 150°C range must use DCMM37PHA101.

Q: What is the significance of contact finish thickness differences?

A: DCMM37PHA101, 1218124-4, and M24308/24-10F specify 50.0µin (1.27µm) gold contact finish thickness. Mercury United Electronics substitutes specify flash gold finish, which is thinner. Flash gold provides adequate contact resistance and wear characteristics for standard signal applications but may not be suitable for high-cycle mating applications or environments requiring extended contact life.