SMS-112-01-S-D Equivalent & Substitute Parts

Part Overview

The SMS-112-01-S-D is a 24-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, gold-plated mating contacts, and push-pull fastening. The part is active in production and widely stocked. Equivalent parts are identified when they share identical electrical and mechanical specifications within the allowed tolerance parameters for rectangular connectors in this pitch class.

Substiute Parts

SMS-112-01-S-D

Samtec Inc.In Stock: 835SMS-112-01-S-D Datasheet

Current PartRFQ

5-104078-9

TE Connectivity AMP ConnectorsIn Stock: 26405-104078-9 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SMS-112-01-S-D is determined by the following critical parameters:

• Connector Type & Position Count: Must be a 24-position receptacle
• Pitch Specification: Mating pitch must be 0.050" (1.27mm)
• Row Configuration: Must maintain 2 rows with 0.100" (2.54mm) row spacing
• Mounting & Termination: Through-hole solder termination required
• Fastening: Push-pull mechanism required
• Contact Finish: Gold-plated mating contacts with 30.0µin (0.76µm) minimum thickness
• Regulatory Compliance: ROHS3 compliance and MSL 1 rating required

The substitute part 5-104078-9 (TE Connectivity AMP Connectors) meets these core electrical and mechanical criteria, enabling direct functional substitution in board-to-board connector applications.

Parameter Comparison

Engineering Selection Recommendations

Both connectors are active production parts with ROHS3 compliance and MSL 1 rating, suitable for standard industrial and commercial applications. The SMS-112-01-S-D provides higher current capacity at 5A per contact, while the 5-104078-9 is rated at 1A per contact. Selection between these parts should be based on circuit current requirements and thermal design constraints. The SMS-112-01-S-D operates across a wider upper temperature range (-55°C to 125°C) compared to the 5-104078-9 (-65°C to 105°C), which may be relevant for high-temperature applications. Both parts share identical pitch, row spacing, and fastening specifications, ensuring mechanical and electrical interchangeability at the connector interface level.

Frequently Asked Questions (FAQ)

Q: Can the 5-104078-9 directly replace the SMS-112-01-S-D in all applications?

A: Direct replacement is possible for applications where circuit current does not exceed 1A per contact. The SMS-112-01-S-D is rated for 5A per contact, so applications requiring higher current density must retain the original part or conduct thermal analysis for the substitute.

Q: Are the physical dimensions compatible for PCB mounting?

A: Yes. Both connectors share identical pitch (0.050"), row spacing (0.100"), and contact post length (0.100"). The insulation height differs slightly (0.335" vs 0.350"), which is within standard tolerance for board-to-board spacing and does not affect mating compatibility.

Q: What is the temperature operating range difference?

A: The SMS-112-01-S-D operates from -55°C to 125°C, while the 5-104078-9 operates from -65°C to 105°C. The SMS-112-01-S-D provides higher upper temperature capability. For applications below 105°C, both parts are suitable.

Q: Are both parts RoHS compliant?

A: Yes. Both the SMS-112-01-S-D and 5-104078-9 are ROHS3 compliant with MSL 1 (unlimited moisture sensitivity level), meeting standard regulatory requirements for commercial and industrial electronics.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution is determined by matching connector type, position count (24), mating pitch (0.050"), row configuration (2 rows at 0.100" spacing), mounting type (through-hole), termination (solder), fastening (push-pull), and contact finish (gold at 30.0µin). Current rating and operating temperature are secondary selection criteria based on application requirements.