DCCM31SCBRP Micro-D Receptacle Connector: Equivalent & Substitute Parts

Part Overview

The DCCM31SCBRP is a 31-position D-Type Micro-D receptacle connector manufactured by Cinch Connectivity Solutions under the Dura-Con™ series. This through-hole, right-angle solder connector features female sockets with a mating-side female screwlock and is designed for applications requiring shielded signal transmission in compact form factors. The connector is currently in active production status with 841 pieces available in new original inventory.

Substitute parts are identified when design requirements permit reduction in position count while maintaining electrical and mechanical compatibility across the connector interface specifications.

Substiute Parts

DCCM31SCBRP

Cinch Connectivity SolutionsIn Stock: 884DCCM31SCBRP Datasheet

Current PartRFQ

DCCM21SCBRP

Cinch Connectivity SolutionsIn Stock: 946DCCM21SCBRP Datasheet

Parametric EquivalentRFQ

DCCM25SCBRP

Cinch Connectivity SolutionsIn Stock: 1201DCCM25SCBRP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DCCM31SCBRP are identified based on strict parametric equivalence across the following critical specifications:

Maintained Parameters (Substitution Basis):

• Connector style: D-Type, Micro-D
• Connector type: Receptacle, Female Sockets
• Number of rows: 2
• Mounting type: Through Hole, Right Angle
• Shell size and connector layout: 0.050 Pitch x 0.043 Row to Row
• Contact type: Signal
• Flange feature: Mating Side, Female Screwlock
• Termination method: Solder
• Shell material and finish: Aluminum Alloy, Yellow Chromate Plated Cadmium
• Contact finish: Gold, 50.0µin (1.27µm)
• Material flammability rating: UL94 V-0
• Current rating: 3A
• Backset spacing: 0.130" (3.30mm)
• Features: Shielded
• Contact form: Machined
• Dielectric material: Diallyl Phthalate (DAP), Glass Filled
• Contact material: Copper Alloy
• Operating temperature: -55°C ~ 135°C
• MSL: 1 (Unlimited)

Variable Parameter (Substitution Differentiator):

• Number of positions: 31 (main part), 21 or 25 (substitute parts)

Substitution is valid when the application circuit design permits operation with fewer signal positions while maintaining all other electrical and mechanical interface requirements.

Parameter Comparison

Engineering Selection Recommendations

DCCM31SCBRP (Primary Selection): The DCCM31SCBRP is the specified part for applications requiring 31 signal positions. This connector maintains active production status and RoHS compliance, meeting current regulatory requirements for commercial and industrial applications. Current inventory of 841 pieces supports immediate deployment.

DCCM25SCBRP (Preferred Substitute): The DCCM25SCBRP provides equivalent electrical and mechanical performance with 25 signal positions. This substitute maintains RoHS compliance status and offers higher inventory availability (1137 pieces). Selection of this part is appropriate when circuit design permits operation with 25 positions instead of 31.

DCCM21SCBRP (Alternative Substitute): The DCCM21SCBRP provides equivalent electrical and mechanical performance with 21 signal positions. This connector carries RoHS non-compliant status. Selection of this part is appropriate only when circuit design permits operation with 21 positions and RoHS compliance is not a regulatory requirement. Inventory availability is 902 pieces.

All three connectors share identical mechanical mounting interfaces, electrical current ratings, operating temperature ranges, and contact specifications. Selection between them depends solely on the number of signal positions required by the circuit design and applicable regulatory compliance mandates.

Frequently Asked Questions (FAQ)

Q: Can DCCM21SCBRP or DCCM25SCBRP be used as direct replacements for DCCM31SCBRP?

A: Direct replacement is possible only if the circuit design requires fewer than 31 signal positions. The DCCM25SCBRP and DCCM21SCBRP are mechanically and electrically compatible with the same mating connector interface. However, the reduced position count means fewer signal lines are available. Verify that your application circuit uses only 25 or 21 positions respectively before substitution.

Q: What is the difference between these connectors?

A: The three connectors differ only in the number of available signal positions: DCCM31SCBRP provides 31 positions, DCCM25SCBRP provides 25 positions, and DCCM21SCBRP provides 21 positions. All other specifications—including shell size, pitch, row spacing, contact material, current rating, operating temperature, and flange configuration—are identical.

Q: Are there any compliance differences between these parts?

A: Yes. The DCCM31SCBRP and DCCM25SCBRP are RoHS compliant. The DCCM21SCBRP is RoHS non-compliant. If your application or market requires RoHS compliance, use either DCCM31SCBRP or DCCM25SCBRP.

Q: Will the mating connector work with all three receptacle options?

A: The mating connector must match the position count of the receptacle. A 31-position plug mates with the DCCM31SCBRP, a 25-position plug mates with the DCCM25SCBRP, and a 21-position plug mates with the DCCM21SCBRP. The mechanical interface dimensions are identical across all three, but the contact arrays differ.

Q: What is the current rating for each connector?

A: All three connectors are rated for 3A per contact. Total current capacity depends on the number of active signal lines in your circuit design.

Q: Are these connectors suitable for high-temperature applications?

A: Yes. All three connectors operate across the temperature range of -55°C to 135°C, supporting both cryogenic and elevated-temperature industrial environments.

Q: What is the inventory status for each part?

A: DCCM31SCBRP has 841 pieces in stock, DCCM21SCBRP has 902 pieces, and DCCM25SCBRP has 1137 pieces available as new original inventory.