ICO-308-LGT Equivalent & Substitute Parts

Part Overview

The ICO-308-LGT is an 8-position DIP socket manufactured by Samtec Inc., designed for through-hole mounting applications. This connector features gold-plated beryllium copper mating contacts with a 0.3" (7.62mm) row spacing and 0.100" (2.54mm) pitch. The product is currently active and available in inventory. Substitute parts are identified when equivalent electrical and mechanical parameters align with the original specification, enabling direct replacement in compatible applications.

Substiute Parts

ICO-308-LGT

Samtec Inc.In Stock: 1155ICO-308-LGT Datasheet

Current PartRFQ

115-93-308-41-001000

Mill-Max Manufacturing Corp.In Stock: 1022115-93-308-41-001000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part 115-93-308-41-001000 (Mill-Max Manufacturing Corp.) qualifies as an equivalent based on the following critical parameters:

• Identical 8-position (2 x 4) DIP configuration
• Matching 0.3" (7.62mm) row spacing and 0.100" (2.54mm) mating pitch
• Gold-plated beryllium copper mating contacts
• Through-hole solder termination with identical post length (0.108")
• Identical operating temperature range (-55°C ~ 125°C)
• Same moisture sensitivity level (MSL 1 - Unlimited)

These parameters define the mechanical and electrical compatibility envelope for DIP socket substitution in this category.

Parameter Comparison

Engineering Selection Recommendations

Both ICO-308-LGT and 115-93-308-41-001000 are active products with identical mechanical and electrical mating characteristics. The primary differentiation factors are:

• The ICO-308-LGT is ROHS3 compliant, while the 115-93-308-41-001000 is RoHS non-compliant. Selection depends on regulatory requirements for the end application.
• The 115-93-308-41-001000 has a higher current rating (3 A vs. 1 A), providing additional margin in applications with elevated current demands.
• Post finish differs: tin on ICO-308-LGT versus tin-lead on 115-93-308-41-001000. This affects solderability characteristics and thermal cycling performance.

Both parts share identical row spacing, pitch, contact materials, and operating temperature range, confirming mechanical and thermal compatibility.

Frequently Asked Questions (FAQ)

Q: Can the 115-93-308-41-001000 directly replace the ICO-308-LGT in existing designs?

A: Yes, from a mechanical and electrical mating perspective. Both sockets feature identical 8-position DIP configuration, 0.3" row spacing, 0.100" pitch, and gold-plated beryllium copper contacts. However, RoHS compliance status and post finish differences must be evaluated against application requirements.

Q: What is the significance of the 0.3" (7.62mm) row spacing specification?

A: Row spacing defines the physical distance between the two rows of contact positions. This dimension is critical for PCB footprint compatibility and DIP package insertion. Both parts share identical row spacing, ensuring footprint compatibility.

Q: How do the current ratings differ between these parts?

A: The ICO-308-LGT is rated for 1 A, while the 115-93-308-41-001000 is rated for 3 A. The higher rating on the substitute part provides additional current-carrying capacity. Selection should be based on actual circuit requirements.

Q: What does the 0.100" (2.54mm) pitch specification mean?

A: Pitch refers to the center-to-center distance between adjacent contact positions. Both parts maintain 0.100" pitch for both mating and post dimensions, ensuring compatibility with standard DIP packages and PCB layouts.

Q: Are there differences in post finish that affect soldering?

A: Yes. The ICO-308-LGT uses tin post finish, while the 115-93-308-41-001000 uses tin-lead. Tin-lead finishes may exhibit different wetting characteristics and thermal cycling behavior. Process compatibility should be confirmed for the specific assembly method.

Q: What does MSL 1 (Unlimited) mean?

A: Moisture Sensitivity Level 1 indicates the lowest moisture sensitivity classification. Both parts are rated MSL 1, meaning they have unlimited shelf life and do not require special moisture control during storage or handling.