DM1AA-SF-PEJ(31) Equivalent & Substitute Parts

Part Overview

The DM1AA-SF-PEJ(31) is a 12-position (9 + 3) Secure Digital (SD) card connector manufactured by Hirose Electric Co Ltd. This surface mount, right-angle connector features gold-plated contacts, board guide, and push-in/push-out ejector mechanism. The part is classified as obsolete, necessitating identification of active equivalent alternatives to maintain design continuity and ensure component availability for new production runs and field replacements.

Substiute Parts

DM1AA-SF-PEJ(31)

Hirose Electric Co LtdIn Stock: 1116DM1AA-SF-PEJ(31) Datasheet

Current PartRFQ

DM1AA-SF-PEJ(82)

Hirose Electric Co LtdIn Stock: 5912DM1AA-SF-PEJ(82) Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for SD card connectors is determined by strict equivalence across the following parameters:

• Card Type: Must be Secure Digital - SD
• Position Count: Must be 12 (9 + 3)
• Connector Type: Must include Connector and Ejector
• Mounting Configuration: Must be Surface Mount, Right Angle
• Insertion/Removal Mechanism: Must be Push In, Push Out
• Contact Finish: Must be Gold
• Height Above Board: Must be 0.114" (2.90mm)
• Features: Must include Board Guide and Switch
• Base Product Number: Must be DM1AA

The DM1AA-SF-PEJ(82) meets all substitution criteria and is the manufacturer-recommended equivalent.

Parameter Comparison

Engineering Selection Recommendations

The DM1AA-SF-PEJ(82) is the direct functional equivalent of the obsolete DM1AA-SF-PEJ(31). Both connectors share identical electrical and mechanical specifications, including position count, mounting configuration, contact finish, and board height. The primary distinction is product status: DM1AA-SF-PEJ(31) is obsolete, while DM1AA-SF-PEJ(82) is active and currently in production.

The DM1AA-SF-PEJ(82) carries ROHS3 compliance, representing an updated regulatory status compared to the RoHS Compliant designation of the original part. Both parts maintain MSL 1 rating and are suitable for unlimited moisture exposure during storage and handling.

For new designs and production applications requiring SD card connector functionality, DM1AA-SF-PEJ(82) is the appropriate selection. For legacy system support or field replacements where DM1AA-SF-PEJ(31) is specified, DM1AA-SF-PEJ(82) provides full electrical and mechanical compatibility without design modification.

Frequently Asked Questions (FAQ)

Q: Can DM1AA-SF-PEJ(82) be used as a direct replacement for DM1AA-SF-PEJ(31)?

A: Yes. Both connectors are identical in electrical and mechanical function. They share the same position count (12), mounting type (surface mount, right angle), insertion mechanism (push in/push out), contact finish (gold), and board height (0.114"). The DM1AA-SF-PEJ(82) is the active production equivalent.

Q: What is the difference between the two part numbers?

A: The primary difference is product status. DM1AA-SF-PEJ(31) is obsolete, while DM1AA-SF-PEJ(82) is active. Additionally, DM1AA-SF-PEJ(82) carries ROHS3 compliance versus RoHS Compliant for the original part. Functionally and mechanically, the connectors are equivalent.

Q: Are there packaging differences between these parts?

A: DM1AA-SF-PEJ(82) is available in Cut Tape (CT) and Digi-Reel® packaging. Packaging information for DM1AA-SF-PEJ(31) was not specified in the original documentation.

Q: Do both parts meet RoHS requirements?

A: Yes. DM1AA-SF-PEJ(31) is RoHS Compliant, and DM1AA-SF-PEJ(82) is ROHS3 Compliant. Both meet RoHS environmental standards.

Q: What is the Moisture Sensitivity Level for these connectors?

A: Both parts carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage and handling.