DM1AA-SF-PEJ(21) Equivalent & Substitute Parts

Part Overview

The DM1AA-SF-PEJ(21) is a 12-position (9 + 3) Secure Digital (SD) card connector manufactured by Hirose Electric Co Ltd. This surface mount, right-angle connector features push-in/push-out ejection with gold-plated contacts and board guide functionality. The part is currently 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(21)

Hirose Electric Co LtdIn Stock: 4889DM1AA-SF-PEJ(21) 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 the DM1AA-SF-PEJ(21) is determined by strict equivalence across the following critical parameters:

• Manufacturer & Series: Hirose Electric Co Ltd, DM1 series
• Card Type & Position Count: Secure Digital (SD), 12 (9 + 3) positions
• Mounting Configuration: Surface mount, right-angle orientation
• Mechanical Interface: Push-in/push-out ejection mechanism with board guide
• Electrical Properties: Gold contact finish at 8.00µin thickness
• Environmental Compliance: RoHS compliance and MSL rating

The DM1AA-SF-PEJ(82) meets all substitution criteria as an active product variant within the same DM1 series, maintaining identical electrical and mechanical specifications while offering improved component availability.

Parameter Comparison

Engineering Selection Recommendations

The DM1AA-SF-PEJ(82) is the direct functional equivalent for the obsolete DM1AA-SF-PEJ(21). Both parts maintain identical electrical and mechanical specifications across all critical parameters. The primary distinction is product status: DM1AA-SF-PEJ(21) is obsolete with limited remaining inventory, while DM1AA-SF-PEJ(82) is active with 5897 units in stock.

The DM1AA-SF-PEJ(82) carries ROHS3 compliance, representing an enhanced regulatory status compared to the RoHS compliance of the original part. Both parts satisfy MSL 1 requirements and are suitable for unlimited moisture exposure conditions.

For new designs and production applications requiring SD card connector functionality with surface-mount, right-angle configuration, the DM1AA-SF-PEJ(82) provides assured long-term availability and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can DM1AA-SF-PEJ(82) be used as a direct replacement for DM1AA-SF-PEJ(21)?

A: Yes. Both parts are identical in electrical and mechanical specifications, including position count, mounting type, contact finish, and board height. The DM1AA-SF-PEJ(82) is the active production variant.

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

A: The suffix designation (21 vs. 82) indicates packaging and distribution channel variants. The DM1AA-SF-PEJ(82) is supplied in Cut Tape (CT) and Digi-Reel® packaging, while the DM1AA-SF-PEJ(21) represents an earlier distribution configuration. Functional performance is identical.

Q: Are there any compliance differences?

A: Both parts are RoHS compliant. The DM1AA-SF-PEJ(82) carries ROHS3 certification, representing current regulatory alignment. Both parts are MSL 1 rated and REACH unaffected.

Q: What is the board height specification, and does it affect PCB layout?

A: Both parts have a height above board of 0.114" (2.90mm). This specification must be considered during PCB design to ensure adequate clearance for component placement and assembly processes.

Q: Are there any inventory considerations for component selection?

A: The DM1AA-SF-PEJ(21) is obsolete with 4846 units remaining in stock. The DM1AA-SF-PEJ(82) is active with 5897 units available, providing superior long-term supply assurance for production requirements.