DM3B-DSF-PEJ Equivalent & Substitute Parts

Part Overview

The DM3B-DSF-PEJ is a 10-position (8 + 2) microSD card connector manufactured by Hirose Electric Co Ltd, designed for surface mount, right-angle applications with push-in/push-out ejection. This connector features gold-plated contacts and is classified as Secure Digital - microSD™ compatible. The part is currently listed as obsolete, making identification of active equivalent and substitute parts essential for ongoing production and design requirements.

Substiute Parts

DM3B-DSF-PEJ

Hirose Electric Co LtdIn Stock: 899DM3B-DSF-PEJ Datasheet

Current PartRFQ

DM3BT-DSF-PEJS

Hirose Electric Co LtdIn Stock: 1000475DM3BT-DSF-PEJS Datasheet

DirectRFQ

5025700893

MolexIn Stock: 81545025700893 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the DM3B-DSF-PEJ is determined by strict equivalence across the following critical parameters:

• Card Type: Secure Digital - microSD™
• Number of Positions: 10 (8 + 2)
• Connector Type: Connector and Ejector
• Insertion/Removal Method: Push In, Push Out
• Mounting Type: Surface Mount, Right Angle
• Contact Finish: Gold
• Moisture Sensitivity Level: 1 (Unlimited)

Two substitute parts meet these criteria. The DM3BT-DSF-PEJS is a direct Hirose Electric equivalent with active product status. The 5025700893 from Molex is a manufacturer-recommended alternative that maintains functional compatibility with minor mechanical variations in mounting feature orientation and height tolerance.

Parameter Comparison

Engineering Selection Recommendations

The DM3BT-DSF-PEJS is the primary substitute for the obsolete DM3B-DSF-PEJ. Both parts are manufactured by Hirose Electric Co Ltd and share identical electrical and mechanical specifications. The DM3BT-DSF-PEJS maintains active product status and is ROHS3 compliant, making it suitable for new designs and production continuity.

The 5025700893 from Molex is a secondary alternative when Hirose supply is unavailable. This part maintains functional compatibility with the original specification but differs in mounting feature orientation (Normal, Standard - Top versus Reverse - Bottom) and height tolerance (0.071" versus 0.072"). These differences require PCB layout verification before implementation.

Both substitute parts carry identical REACH and ECCN classifications as the original part, ensuring regulatory compliance across applications.

Frequently Asked Questions (FAQ)

Q: Can the DM3BT-DSF-PEJS be used as a direct replacement for the DM3B-DSF-PEJ?

A: Yes. The DM3BT-DSF-PEJS is electrically and mechanically equivalent to the DM3B-DSF-PEJ. Both parts feature identical contact positions, insertion/removal methods, height above board, and contact finish specifications. The primary difference is product status: DM3BT-DSF-PEJS is active while DM3B-DSF-PEJ is obsolete.

Q: What are the key differences between the Hirose DM3BT-DSF-PEJS and the Molex 5025700893?

A: Both parts maintain the same card type, position count, and insertion method. The Molex part differs in mounting feature orientation (top-mounted versus bottom-mounted) and height tolerance (0.071" versus 0.072"). PCB layout must be verified before substitution, as the mounting feature difference affects component placement and clearance.

Q: Are both substitute parts RoHS compliant?

A: Yes. The DM3BT-DSF-PEJS and 5025700893 are both ROHS3 compliant. The original DM3B-DSF-PEJ does not specify RoHS status in available documentation.

Q: What is the packaging format for these substitute parts?

A: Both DM3BT-DSF-PEJS and 5025700893 are available in Cut Tape (CT) and Digi-Reel® packaging formats.

Q: Do these parts require different handling or storage procedures?

A: No. All three parts share identical Moisture Sensitivity Level (MSL) classification of 1 (Unlimited), indicating no special moisture control requirements during storage or handling.