Amphenol ICC 76383-436LF Rectangular Connector Header Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 76383-436LF is a Dubox™ series rectangular connector header designed for through-hole, right-angle mounting applications. This 72-position, 2-row connector operates at 0.100" (2.54mm) pitch and features shrouded 2-wall construction with solder termination and friction lock fastening. The part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility for board-to-cable/wire interconnection applications.

Substiute Parts

76383-436LF

Amphenol ICC (FCI)In Stock: 104276383-436LF Datasheet

Current PartRFQ

76383-336LF

Amphenol ICC (FCI)In Stock: 101076383-336LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 76383-436LF is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Connector type (Header)
• Contact type (Male Pin)
• Number of positions (72)
• Number of rows (2)
• Pitch - mating (0.100" / 2.54mm)
• Row spacing - mating (0.100" / 2.54mm)
• Mounting type (Through Hole, Right Angle)
• Shrouding configuration (Shrouded - 2 Wall)
• Termination method (Solder)
• Fastening type (Friction Lock)
• Contact material (Phosphor Bronze)
• Insulation material (Polyester, Glass Filled)
• Flammability rating (UL94 V-0)
• Insulation color (Blue)
• MSL rating (1 - Unlimited)

Variable Parameters (Non-Critical for Substitution):

• Contact finish composition and thickness
• Operating temperature range
• Current rating
• Part status (obsolete vs. active)
• RoHS compliance status

The Amphenol ICC 76383-336LF meets all mandatory matching criteria and qualifies as a direct substitute for the 76383-436LF.

Parameter Comparison

Engineering Selection Recommendations

The Amphenol ICC 76383-336LF is a direct functional equivalent to the 76383-436LF for all board-to-cable/wire interconnection applications requiring 72-position, 2-row rectangular connector headers with 0.100" (2.54mm) pitch and right-angle through-hole mounting.

Primary Substitution Basis:

The 76383-336LF maintains complete mechanical and electrical compatibility across all critical connector parameters: identical position count, row configuration, pitch spacing, shrouding design, mounting orientation, termination method, and fastening mechanism. Both parts utilize phosphor bronze contacts with polyester glass-filled insulation rated UL94 V-0, ensuring equivalent performance in standard interconnection scenarios.

Status Advantage:

The 76383-336LF holds active part status with confirmed inventory availability, whereas the 76383-436LF is classified as obsolete. This transition to an active equivalent ensures long-term supply chain continuity and access to current manufacturing processes.

Compliance Enhancement:

The 76383-336LF carries RoHS compliance certification, providing regulatory alignment for applications subject to hazardous substance restrictions. The substitute part also specifies operating temperature range (-40°C ~ 125°C) and current rating (3A), offering defined performance parameters for design validation.

Contact Finish Consideration:

The 76383-336LF features gold GXT™ mating contact finish (30.0µin / 0.76µm) compared to the tin finish (78.7µin / 2.00µm) of the 76383-436LF. Both finishes are compatible with standard solder termination and friction lock mating cycles. The gold finish provides enhanced corrosion resistance in environments subject to oxidation or extended storage periods.

Frequently Asked Questions (FAQ)

Q: Can the 76383-336LF directly replace the 76383-436LF in existing designs?

A: Yes. The 76383-336LF is a direct substitute meeting all mechanical and electrical specifications for the 76383-436LF. Identical pitch spacing (0.100" / 2.54mm), position count (72), row configuration (2), mounting type (through-hole right-angle), and termination method (solder) ensure drop-in compatibility without design modification.

Q: What is the difference between the tin and gold contact finishes?

A: The 76383-436LF uses tin mating contact finish (78.7µin / 2.00µm thickness), while the 76383-336LF uses gold GXT™ finish (30.0µin / 0.76µm thickness). Both finishes are compatible with solder termination and friction lock mating. Gold finish provides superior corrosion resistance and is preferred for applications with extended shelf life or exposure to oxidizing environments.

Q: Why is the 76383-436LF classified as obsolete?

A: The 76383-436LF is no longer in active production. The 76383-336LF represents the current active equivalent within the Dubox™ series, offering identical functionality with enhanced compliance certifications and defined performance parameters.

Q: Does the 76383-336LF meet RoHS requirements?

A: Yes. The 76383-336LF is RoHS compliant, meeting restrictions on hazardous substances. The 76383-436LF does not specify RoHS status in available documentation.

Q: Are the physical dimensions identical between both parts?

A: Yes. Both connectors share identical mating contact length (0.197" / 5.00mm), post contact length (0.154" / 3.91mm), insulation height (0.307" / 7.80mm), and overall shrouded 2-wall configuration. No mechanical modifications are required for substitution.

Q: What is the current rating for the 76383-336LF?

A: The 76383-336LF is rated for 3A continuous current. The 76383-436LF does not specify a current rating in available documentation.

Q: What is the operating temperature range for the 76383-336LF?

A: The 76383-336LF operates across -40°C to 125°C. The 76383-436LF does not specify an operating temperature range in available documentation.

Q: Are both parts available in the same packaging format?

A: Yes. Both the 76383-436LF and 76383-336LF are supplied in tube packaging. The 76383-336LF currently maintains 998 pieces in new original stock inventory.

Q: What is the moisture sensitivity level (MSL) for the 76383-336LF?

A: Both parts carry MSL rating 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.

Q: Can the 76383-336LF be used in high-reliability applications?

A: The 76383-336LF meets UL94 V-0 flammability requirements and RoHS compliance standards. Suitability for specific high-reliability applications depends on design requirements beyond connector specifications, including mating connector compatibility, circuit protection, and system-level validation.