76308-129LF Equivalent & Substitute Parts

Part Overview

The 76308-129LF is a 29-position receptacle connector manufactured by Amphenol ICC (FCI) in the BergCon® series. This through-hole connector features a 0.100" (2.54mm) pitch with gold-plated mating contacts and is designed for board-to-board or cable applications. The part is currently obsolete, with 994 units available in new original stock. Due to its obsolete status, identifying compatible substitute parts is essential for ongoing design support and procurement continuity.

Substiute Parts

76308-129LF

Amphenol ICC (FCI)In Stock: 103776308-129LF Datasheet

Current PartRFQ

66951-029LF

Amphenol ICC (FCI)In Stock: 108766951-029LF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The 66951-029LF qualifies as a direct substitute for the 76308-129LF based on the following critical parameters:

Matching Parameters:

• Connector type: Receptacle
• Contact type: Female socket
• Number of positions: 29
• Pitch - mating: 0.100" (2.54mm)
• Mounting type: Through hole
• Termination: Solder
• Contact finish - mating: Gold
• Fastening type: Push-pull
• Material flammability rating: UL94 V-0
• Contact material: Brass
• Moisture sensitivity level: 1 (Unlimited)

The 66951-029LF maintains electrical and mechanical compatibility with the original part while offering the advantage of active product status and expanded application support.

Parameter Comparison

Engineering Selection Recommendations

The 66951-029LF is the recommended substitute for the obsolete 76308-129LF. Both connectors share identical core electrical and mechanical specifications, including connector type, contact configuration, pitch, mounting method, and termination approach. The substitute part maintains UL94 V-0 flammability compliance and identical moisture sensitivity classification.

The 66951-029LF offers the advantage of active product status, ensuring long-term availability and supply chain stability. The substitute also provides documented voltage rating (1250V) and operating temperature range (-65°C ~ 125°C), along with RoHS compliance certification. Minor dimensional variations in insulation height and contact post length fall within acceptable tolerances for board-to-board connector applications.

Frequently Asked Questions (FAQ)

Q: Are the 76308-129LF and 66951-029LF mechanically compatible?

A: Yes. Both connectors feature identical 29-position, 0.100" (2.54mm) pitch configurations with push-pull fastening. Insulation height and contact post length variations are minimal and do not affect mating compatibility.

Q: What is the primary reason for substitution?

A: The 76308-129LF is obsolete. The 66951-029LF is an active product from the same manufacturer, ensuring continued availability and support.

Q: Are there compliance differences between the two parts?

A: Both parts meet UL94 V-0 flammability requirements and share identical moisture sensitivity levels. The 66951-029LF additionally provides RoHS compliance certification.

Q: Does the substitute part support the same applications?

A: Yes. Both connectors are suitable for board-to-board and cable applications with identical electrical and mechanical characteristics.

Q: What packaging is available for the substitute part?

A: The 66951-029LF is supplied in tube packaging, with 1045 units available in new original stock.