MDMH51SS Micro-D Receptacle Connector - Equivalent & Substitute Parts

Part Overview

The MDMH51SS is a 51-position D-Type Micro-D receptacle connector manufactured by ITT Cannon, LLC, designed for panel mount applications. This connector features female sockets with solder cup termination and is classified as an active product. The MDMH51SS serves applications requiring high-density signal interconnection with shielded construction and operates across the industrial temperature range of -55°C to 125°C. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity for this connector category.

Substiute Parts

MDMH51SS

ITT Cannon, LLCIn Stock: 836MDMH51SS Datasheet

Current PartRFQ

MDM-51SSP

ITT Cannon, LLCIn Stock: 1156MDM-51SSP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MDMH51SS is based on strict electrical and mechanical parameter alignment. The substitute part MDM-51SSP maintains compatibility through the following critical parameters:

Substitution Criteria:

• Identical connector style (D-Type, Micro-D)
• Identical connector type (Receptacle, Female Sockets)
• Identical number of positions (51) and rows (3)
• Identical shell size and connector layout (0.050 Pitch x 0.043 Row to Row)
• Identical mounting type (Panel Mount)
• Identical termination method (Solder Cup)
• Identical current rating (3A)
• Identical operating temperature range (-55°C to 125°C)
• Identical contact type (Signal)
• Identical flange feature (Mating Side, Female Screwlock 2-56)
• Identical shielded construction

The MDM-51SSP is classified as a direct substitute based on functional and mechanical equivalence within the ITT Cannon Micro-D connector family.

Parameter Comparison

Engineering Selection Recommendations

Both the MDMH51SS and MDM-51SSP are active products from ITT Cannon, LLC, and maintain functional and mechanical equivalence for 51-position Micro-D receptacle applications. Selection between these parts should be based on the following engineering considerations:

MDMH51SS Selection Criteria:

• Steel shell with tin-lead plating provides corrosion resistance in standard industrial environments
• Diallyl Phthalate (DAP) dielectric material with glass filling offers established reliability
• MSL rating of 1 (Unlimited) indicates no moisture sensitivity constraints
• Suitable for applications without RoHS or REACH compliance mandates

MDM-51SSP Selection Criteria:

• Aluminum shell with yellow chromate plating offers weight reduction and alternative corrosion protection
• Liquid Crystal Polymer (LCP) dielectric material provides enhanced thermal and chemical resistance
• REACH Affected status requires compliance verification in regulated supply chains
• RoHS non-compliant status requires confirmation of application requirements

Both connectors share identical electrical performance (3A current rating), mechanical interface (0.050 Pitch x 0.043 Row to Row), and operating temperature range (-55°C to 125°C). Selection should prioritize compliance requirements, environmental specifications, and material compatibility with the end application.

Frequently Asked Questions (FAQ)

Q: Can MDM-51SSP be used as a direct replacement for MDMH51SS in existing designs?

A: Yes. Both connectors are mechanically and electrically equivalent 51-position Micro-D receptacles with identical pin pitch, row spacing, current rating, and operating temperature range. Physical mounting and mating interface are identical. Compliance status differences (RoHS, REACH) must be evaluated against application requirements.

Q: What are the material differences between MDMH51SS and MDM-51SSP?

A: The MDMH51SS features a steel shell with tin-lead plating and Diallyl Phthalate (DAP) glass-filled dielectric. The MDM-51SSP features an aluminum shell with yellow chromate plating and Liquid Crystal Polymer (LCP) dielectric. Both maintain identical electrical performance and mechanical compatibility.

Q: Are there packaging differences between these connectors?

A: The MDMH51SS packaging is not specified in the product data. The MDM-51SSP is supplied in bulk packaging. Packaging format should be confirmed with the supplier for procurement and handling requirements.

Q: What is the significance of the MSL rating difference?

A: The MDMH51SS carries MSL 1 (Unlimited), indicating no moisture sensitivity constraints during storage or handling. The MDM-51SSP carries Not Applicable MSL status. For applications requiring strict moisture control protocols, the MDMH51SS MSL rating provides explicit guidance.

Q: How do the compliance statuses affect part selection?

A: The MDM-51SSP is marked as RoHS non-compliant and REACH Affected. Applications subject to RoHS or REACH regulations must confirm compliance requirements before selection. The MDMH51SS compliance status is not specified and should be verified with the manufacturer for regulated applications.

Q: Are both connectors suitable for the same operating temperature range?

A: Yes. Both the MDMH51SS and MDM-51SSP operate across -55°C to 125°C. Temperature performance is identical between the two connectors.

Q: What is the contact finish specification for both connectors?

A: Both connectors feature gold-plated contacts on copper alloy base material, ensuring equivalent electrical performance and corrosion resistance.