SMS-115-01-S-D Equivalent & Substitute Parts

Part Overview

The SMS-115-01-S-D is a 30-position receptacle connector manufactured by Samtec Inc., designed for board-to-board applications with 0.050" (1.27mm) pitch mating. This connector features through-hole solder termination, push-pull fastening, and gold-plated mating contacts. The part is currently active in production with 964 units in stock. Substitute parts are identified when equivalent electrical and mechanical parameters align with the core specifications, enabling direct replacement in applications where the original part becomes unavailable or when inventory optimization is required.

Substiute Parts

SMS-115-01-S-D

Samtec Inc.In Stock: 1004SMS-115-01-S-D Datasheet

Current PartRFQ

104078-4

TE Connectivity AMP ConnectorsIn Stock: 1021104078-4 Datasheet

SimilarRFQ

5-104078-4

TE Connectivity AMP ConnectorsIn Stock: 19275-104078-4 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMS-115-01-S-D are identified based on strict alignment of core electrical and mechanical parameters. The substitution criteria are:

• Connector Type: Receptacle configuration
• Position Count: 30 positions
• Mating Pitch: 0.050" (1.27mm)
• Row Configuration: 2 rows with 0.100" (2.54mm) row spacing
• Mounting: Through-hole solder termination
• Fastening: Push-pull mechanism
• Mating Contact Finish: Gold plating at 30.0µin (0.76µm) thickness
• Insulation Color: Black
• Moisture Sensitivity: MSL 1 (Unlimited)

The identified substitutes—TE Connectivity AMP Connectors part numbers 104078-4 and 5-104078-4—meet these core parameters. Both are AMPMODU System 50 series receptacles with identical position counts, pitch, row spacing, and mounting characteristics. Variations in secondary parameters such as insulation material composition, operating temperature range, and current rating per contact are documented in the parameter comparison table below.

Parameter Comparison

Engineering Selection Recommendations

Both TE Connectivity substitute parts (104078-4 and 5-104078-4) maintain mechanical and electrical compatibility with the SMS-115-01-S-D across all critical mating parameters. Selection between these options should be based on the following factors:

5-104078-4 (Recommended for new designs): This part carries ROHS3 compliance certification, aligning with modern regulatory requirements. It features tin post finish and is available in higher inventory (1900 units). This part is suitable for applications requiring RoHS compliance.

104078-4: This part does not carry RoHS certification and features tin-lead post finish. It is available in lower inventory (952 units) and carries "Not applicable" RoHS status, indicating it may not meet current regulatory standards for new product designs.

Operational Considerations: The SMS-115-01-S-D supports 5A per contact, while both TE Connectivity substitutes are rated at 1A per contact. Applications requiring higher current density per contact should retain the original SMS-115-01-S-D. The SMS-115-01-S-D operates across -55°C to 125°C, while substitutes operate across -65°C to 105°C. Applications requiring the extended upper temperature range of the SMS-115-01-S-D should not use these substitutes.

Frequently Asked Questions (FAQ)

Q: Can 104078-4 and 5-104078-4 be used interchangeably with SMS-115-01-S-D?

A: Both parts share identical mating pitch (0.050"), position count (30), row configuration (2 rows at 0.100" spacing), mounting type (through-hole), termination (solder), and fastening mechanism (push-pull). Mechanical and electrical compatibility is established for these core parameters. However, differences in current rating (1A vs. 5A per contact), operating temperature range (-65°C to 105°C vs. -55°C to 125°C), and insulation material composition must be evaluated against application requirements.

Q: What are the key differences between 104078-4 and 5-104078-4?

A: Both parts are AMPMODU System 50 series connectors with identical mechanical and electrical specifications. The primary differences are: 5-104078-4 carries ROHS3 compliance certification while 104078-4 does not; 5-104078-4 features tin post finish while 104078-4 features tin-lead post finish; 5-104078-4 has higher inventory availability (1900 units vs. 952 units).

Q: Are there any dimensional differences between these parts?

A: Insulation height differs slightly: SMS-115-01-S-D measures 0.335" (8.51mm) while both TE Connectivity parts measure 0.350" (8.89mm). This 0.015" (0.38mm) difference should be evaluated in applications with tight vertical clearance constraints. Contact length and row spacing remain identical across all three parts.

Q: Which substitute should be selected for new product designs?

A: For new designs requiring regulatory compliance, 5-104078-4 is the appropriate selection due to ROHS3 certification. For applications requiring the higher current rating or extended upper temperature range of the original SMS-115-01-S-D, neither substitute is suitable and the original part should be retained.

Q: What is the impact of the current rating difference?

A: SMS-115-01-S-D supports 5A per contact while both TE Connectivity substitutes support 1A per contact. Applications designed for the full 5A rating cannot be reliably served by the 1A-rated substitutes without circuit redesign or parallel contact configuration.