SMS-105-01-S-D Equivalent & Substitute Parts

Part Overview

The SMS-105-01-S-D is a 10-position receptacle connector manufactured by Samtec Inc., designed for board-to-board applications with 0.050" (1.27mm) pitch mating. This connector features gold-plated mating contacts, through-hole solder termination, and push-pull fastening. The part is currently active in production with 1067 units in stock. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design requirements permit equivalent configurations.

Substiute Parts

SMS-105-01-S-D

Samtec Inc.In Stock: 1094SMS-105-01-S-D Datasheet

Current PartRFQ

104078-3

TE Connectivity AMP ConnectorsIn Stock: 935104078-3 Datasheet

SimilarRFQ

5-104078-3

TE Connectivity AMP ConnectorsIn Stock: 46675-104078-3 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMS-105-01-S-D are identified based on the following critical parameters that must match or be compatible:

• Connector Type: Receptacle
• Number of Positions: 10
• Pitch - Mating: 0.050" (1.27mm)
• Number of Rows: 2
• Row Spacing - Mating: 0.100" (2.54mm)
• Mounting Type: Through Hole
• Termination: Solder
• Fastening Type: Push-Pull
• Contact Finish - Mating: Gold
• Contact Finish Thickness - Mating: 30.0µin (0.76µm)

The identified substitutes are TE Connectivity AMP Connectors part numbers 104078-3 and 5-104078-3, both from the AMPMODU System 50 series. These parts satisfy the core mechanical and electrical interface requirements for board-to-board connectivity at 0.050" pitch with identical row configuration and gold-plated mating contacts.

Parameter Comparison

Engineering Selection Recommendations

SMS-105-01-S-D (Primary Part)

The SMS-105-01-S-D remains the preferred selection for applications requiring ROHS3 compliance, higher current capacity (5A per contact), and extended upper operating temperature (125°C). This part is actively produced and maintains adequate inventory levels.

5-104078-3 (Preferred Substitute)

The 5-104078-3 is the recommended substitute when SMS-105-01-S-D availability is constrained. This part maintains ROHS3 compliance and shares identical mechanical and mating interface specifications. The primary design consideration is the reduced current rating (1A per contact) and lower maximum operating temperature (105°C). Applications operating below these electrical and thermal limits can utilize this substitute without functional impact. Inventory availability is significantly higher at 4633 units.

104078-3 (Secondary Substitute)

The 104078-3 is functionally equivalent to 5-104078-3 but carries RoHS non-compliance status. This part should be selected only when ROHS3 compliance is not a design requirement. All other electrical and mechanical considerations remain identical to 5-104078-3.

Frequently Asked Questions (FAQ)

Q: Can 104078-3 or 5-104078-3 be used as direct replacements for SMS-105-01-S-D?

A: Both TE Connectivity parts share identical mating pitch (0.050"), row configuration, contact finish, and fastening mechanism. Substitution is mechanically and electrically compatible provided the application does not exceed 1A per contact current or require operation above 105°C. The SMS-105-01-S-D supports 5A per contact and -55°C to 125°C operation, so applications utilizing these higher ratings require the original part.

Q: What is the difference between 104078-3 and 5-104078-3?

A: Both parts are functionally identical in mechanical and electrical interface specifications. The primary difference is RoHS compliance status: 104078-3 is RoHS non-compliant, while 5-104078-3 is ROHS3 compliant. For applications subject to RoHS regulations, 5-104078-3 is the appropriate selection.

Q: Does packaging format affect compatibility?

A: No. SMS-105-01-S-D is supplied in bulk packaging, while both TE Connectivity substitutes are supplied in tube packaging. Packaging format does not affect connector functionality or board-level compatibility. Packaging selection is driven by assembly process requirements and inventory management practices.

Q: Are there thermal or current derating considerations when using substitute parts?

A: Yes. The TE Connectivity substitutes (104078-3 and 5-104078-3) are rated for 1A per contact maximum current, compared to 5A for the SMS-105-01-S-D. Additionally, the maximum operating temperature is 105°C for substitutes versus 125°C for the original part. Applications must operate within these specified limits.

Q: What is the insulation height difference between the main part and substitutes?

A: The SMS-105-01-S-D has an insulation height of 0.335" (8.51mm), while both TE Connectivity substitutes measure 0.350" (8.89mm). This 0.015" (0.38mm) difference may affect board layout spacing and mating stack height in constrained applications. Verify clearance in your specific PCB design.