Equivalent & Substitute Parts for 316-83-121-41-011101

Part Overview

The Preci-Dip 316-83-121-41-011101 is a 21-position rectangular socket connector with 0.100" (2.54mm) pitch, designed for board-to-board applications. This through-hole mounted connector features gold-plated mating contacts and tin-plated posts, operating across the industrial temperature range of -55°C to 125°C. The connector maintains Active product status and is fully RoHS3 compliant.

Substitute parts are identified when equivalent electrical and mechanical parameters are maintained within the allowed specifications for this connector category, ensuring functional interchangeability in target applications.

Substiute Parts

316-83-121-41-011101

Preci-DipIn Stock: 918316-83-121-41-011101 Datasheet

Current PartRFQ

ESS-121-T-05

Samtec Inc.In Stock: 918ESS-121-T-05 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 316-83-121-41-011101 is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Number of Positions: 21
• Pitch - Mating: 0.100" (2.54mm)
• Connector Type: Socket (Female Socket Contact Type)
• Mounting Type: Through Hole
• Contact Finish - Mating: Gold
• Operating Temperature Range: -55°C ~ 125°C minimum
• Material Flammability Rating: UL94 V-0
• RoHS3 Compliance: Required

Allowable Variations:

• Insulation Height (mechanical envelope differences acceptable if board clearance permits)
• Contact Length - Post (within solder joint capability)
• Contact Finish Thickness - Mating (gold plating thickness variation)
• Insulation Material (different polymer formulations acceptable)
• Current Rating (equal or greater capacity acceptable)

The Samtec Inc. ESS-121-T-05 meets all mandatory matching parameters and qualifies as a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: 316-83-121-41-011101 (Preci-Dip)

Use the original Preci-Dip 316-83-121-41-011101 when:

• Specified current rating of 3A is a design requirement
• Insulation height of 0.709" (18.00mm) is required for board clearance
• Contact post length of 0.126" (3.20mm) is specified for PCB thickness compatibility
• Original manufacturer part is contractually required
• Inventory availability of 902 pieces supports production schedule

Substitute Selection: ESS-121-T-05 (Samtec Inc.)

The Samtec Inc. ESS-121-T-05 qualifies as a functional substitute when:

• All mandatory electrical parameters (21 positions, 0.100" pitch, gold mating contacts, -55°C to 125°C operation, UL94 V-0, RoHS3 compliance) are required
• Mechanical envelope differences are acceptable within board design constraints
• Reduced insulation height of 0.500" (12.70mm) does not conflict with clearance requirements
• Extended contact post length of 0.173" (4.40mm) is compatible with PCB solder joint requirements
• Liquid Crystal Polymer insulation material meets application environmental specifications
• Current rating specification is not a limiting design factor

Both parts maintain Active product status and full regulatory compliance (RoHS3, ECCN EAR99, HTSUS 8536.69.4040).

Frequently Asked Questions (FAQ)

Q: Can the ESS-121-T-05 be used as a direct replacement for the 316-83-121-41-011101 in existing designs?

A: The ESS-121-T-05 is electrically and functionally compatible for board-to-board socket applications requiring 21 positions at 0.100" pitch with gold mating contacts. However, mechanical envelope differences must be evaluated. The ESS-121-T-05 has a lower insulation height (0.500" vs. 0.709") and longer contact posts (0.173" vs. 0.126"), which may affect board clearance and solder joint geometry. Design verification is required before implementation.

Q: What are the key differences between these two connectors?

A: The primary differences are: (1) Insulation material—Preci-Dip uses glass-filled polyester (PCT), while Samtec uses Liquid Crystal Polymer (LCP); (2) Insulation height—Preci-Dip is 0.709" versus Samtec at 0.500"; (3) Contact post length—Preci-Dip is 0.126" versus Samtec at 0.173"; (4) Gold plating thickness—Preci-Dip is 29.5µin versus Samtec at 10.0µin. All other electrical and thermal specifications are equivalent.

Q: Are both connectors RoHS3 compliant?

A: Yes. Both the 316-83-121-41-011101 and ESS-121-T-05 are RoHS3 compliant and carry the same ECCN (EAR99) and HTSUS code (8536.69.4040).

Q: What is the operating temperature range for both connectors?

A: Both connectors operate across the identical temperature range of -55°C to 125°C, meeting industrial and extended commercial application requirements.

Q: Does the Samtec ESS-121-T-05 have a specified current rating?

A: The Samtec ESS-121-T-05 does not have a published current rating in the provided specifications. The Preci-Dip 316-83-121-41-011101 is rated for 3A. If current rating is a critical design parameter, the original Preci-Dip part is the specified choice.

Q: What is the difference between a standard socket and an elevated socket?

A: The Preci-Dip 316-83-121-41-011101 is a standard socket connector, while the Samtec ESS-121-T-05 is an elevated socket. The elevated design typically provides additional clearance above the PCB surface, which is reflected in the different insulation heights and contact post lengths between the two parts.

Q: Can these connectors be used interchangeably in the same PCB layout?

A: No. The mechanical differences (insulation height and contact post length) require PCB layout modifications. The ESS-121-T-05 cannot be directly soldered into a PCB designed for the 316-83-121-41-011101 without potential solder joint issues or clearance conflicts. PCB redesign is necessary for substitution.

Q: What is the Moisture Sensitivity Level (MSL) for the ESS-121-T-05?

A: The Samtec ESS-121-T-05 has an MSL rating of Not Applicable, indicating no moisture sensitivity restrictions. The Preci-Dip 316-83-121-41-011101 has an MSL of 1 (Unlimited), also indicating no moisture sensitivity concerns.