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QMSS-048-01-L-D-DP-EM2 Equivalent & Substitute Parts
Part Overview
The QMSS-048-01-L-D-DP-EM2 is a 96-position differential pair array connector manufactured by Samtec Inc. in the Q2™ QMSS series. This surface mount male connector features gold-plated contacts and is designed for high-density interconnect applications requiring differential signaling. The part is Active status and ROHS3 compliant. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the connector family, enabling component interchangeability in design and procurement workflows.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | QMSS-048-01-L-D-DP-EM2 |
| Manufacturer | Samtec Inc. |
| Category | Rectangular Connectors |
| Series | Q2™ QMSS |
| Connector Type | Differential Pair Array, Male |
| Number of Positions | 96 |
| Pitch | 0.025" (0.64mm) |
| Number of Rows | 2 |
| Mounting Type | Surface Mount |
| Contact Finish | Gold |
| Contact Finish Thickness | 10.0µin (0.25µm) |
| Mated Stacking Height | 11mm |
| Height Above Board | 0.265" (6.73mm) |
| Features | Board Guide, Ground Bus (Plane), Shielded |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| Product Status | Active |
Substitute Part Grouping Explanation
Substitute parts within the Q2™ QMSS series maintain electrical and mechanical compatibility when the following parameters remain constant:
- Connector type: Differential Pair Array, Male
- Number of positions: 96
- Pitch: 0.025" (0.64mm)
- Number of rows: 2
- Mounting type: Surface Mount
- Contact finish: Gold at 10.0µin (0.25µm) thickness
- Mated stacking height: 11mm
- Height above board: 0.265" (6.73mm)
- Features: Board Guide, Ground Bus (Plane), Shielded
- RoHS compliance: ROHS3
- MSL rating: 1 (Unlimited)
Variations in part number suffixes (such as -01-L-D-DP-EM2 versus -06.75-L-D-DP-A) reflect packaging or lead configuration options within the same electrical and mechanical envelope. Parts sharing these core parameters are functionally interchangeable.
Parameter Comparison
| Parameter | QMSS-048-01-L-D-DP-EM2 | QMSS-048-06.75-L-D-DP-A |
|---|---|---|
| Manufacturer | Samtec Inc. | Samtec Inc. |
| Category | Rectangular Connectors | Rectangular Connectors |
| Series | Q2™ QMSS | Q2™ QMSS |
| Connector Type | Differential Pair Array, Male | Differential Pair Array, Male |
| Number of Positions | 96 | 96 |
| Pitch | 0.025" (0.64mm) | 0.025" (0.64mm) |
| Number of Rows | 2 | 2 |
| Mounting Type | Surface Mount | Surface Mount |
| Contact Finish | Gold | Gold |
| Contact Finish Thickness | 10.0µin (0.25µm) | 10.0µin (0.25µm) |
| Mated Stacking Height | 11mm | 11mm |
| Height Above Board | 0.265" (6.73mm) | 0.265" (6.73mm) |
| Features | Board Guide, Ground Bus (Plane), Shielded | Board Guide, Ground Bus (Plane), Shielded |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) |
| Product Status | Active | Active |
Engineering Selection Recommendations
Both QMSS-048-01-L-D-DP-EM2 and QMSS-048-06.75-L-D-DP-A are Active status products from Samtec Inc. and maintain full ROHS3 compliance. Selection between these parts is determined by packaging and lead configuration requirements specific to the application. Both parts carry MSL 1 rating, indicating no moisture sensitivity constraints during storage and handling. Inventory availability should be evaluated based on procurement lead times and supply chain requirements.
Frequently Asked Questions (FAQ)
Q: Are QMSS-048-01-L-D-DP-EM2 and QMSS-048-06.75-L-D-DP-A electrically interchangeable?
A: Yes. Both parts maintain identical electrical specifications including 96-position differential pair array configuration, 0.025" pitch, gold contact finish at 10.0µin thickness, and shielded ground bus architecture.
Q: What determines the difference between these part numbers?
A: The suffix variations (-01-L-D-DP-EM2 versus -06.75-L-D-DP-A) reflect packaging format and lead configuration options. The core connector architecture, position count, pitch, and contact specifications remain constant.
Q: Can these connectors be used interchangeably on the same PCB layout?
A: Yes. Both parts share identical mechanical dimensions including 0.265" height above board, 11mm mated stacking height, and 2-row configuration with board guide and shielding features.
Q: Are there any compliance differences between these substitute parts?
A: No. Both parts are ROHS3 compliant and carry MSL 1 rating with unlimited moisture sensitivity tolerance.
Q: Which part should be selected for new designs?
A: Selection is based on packaging and procurement availability. Both parts are Active status and suitable for new designs. Consult Samtec documentation for specific lead configuration and packaging requirements.
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