Amphenol ICC 76383-418 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 76383-418 is a through-hole, right-angle rectangular connector header with 36 positions at 2.54mm pitch, designed for board-to-cable/wire applications. This component features shrouded 2-wall construction with solder termination and friction lock fastening. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement planning.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Number of Positions	36
Number of Rows	2
Pitch - Mating	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole, Right Angle
Shrouding	Shrouded - 2 Wall
Termination	Solder
Fastening Type	Friction Lock
Contact Material	Phosphor Bronze
Insulation Material	Polyester, Glass Filled
Material Flammability Rating	UL94 V-0
Insulation Color	Blue
Series	Dubox™

Substitute Part Grouping Explanation

Substitution of the 76383-418 is based on strict equivalence across the following critical parameters:

Connector type (Header)
Contact type (Male Pin)
Position count and row configuration (36 positions, 2 rows)
Mating pitch and row spacing (0.100" / 2.54mm)
Mounting orientation (Through Hole, Right Angle)
Shrouding configuration (Shrouded - 2 Wall)
Termination method (Solder)
Fastening mechanism (Friction Lock)
Contact material and insulation material specifications
Flammability rating (UL94 V-0)

The substitute part 76383-418LF maintains identical mechanical and electrical interface specifications, ensuring direct functional compatibility in applications requiring the 76383-418.

Parameter Comparison

Parameter	76383-418 (Main Part)	76383-418LF (Substitute)
Manufacturer	Amphenol ICC (FCI)	Amphenol ICC (FCI)
Series	Dubox™	Dubox™
Product Status	Obsolete	Active
Connector Type	Header	Header
Contact Type	Male Pin	Male Pin
Number of Positions	36	36
Number of Rows	2	2
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)	0.100" (2.54mm)
Mounting Type	Through Hole, Right Angle	Through Hole, Right Angle
Shrouding	Shrouded - 2 Wall	Shrouded - 2 Wall
Termination	Solder	Solder
Fastening Type	Friction Lock	Friction Lock
Contact Length - Mating	0.197" (5.00mm)	0.197" (5.00mm)
Contact Length - Post	0.154" (3.91mm)	0.154" (3.91mm)
Insulation Height	0.307" (7.80mm)	0.307" (7.80mm)
Contact Shape	Square	Square
Contact Material	Phosphor Bronze	Phosphor Bronze
Insulation Material	Polyester, Glass Filled	Polyester, Glass Filled
Material Flammability Rating	UL94 V-0	UL94 V-0
Insulation Color	Blue	Blue
Contact Finish - Mating	Tin-Lead	Tin
Contact Finish - Post	Tin-Lead	Tin
RoHS Status	RoHS non-compliant	RoHS Compliant
Operating Temperature	Not specified	-40°C ~ 125°C
Current Rating	Not specified	3A
Packaging	Not specified	Tube
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
ECCN	EAR99	EAR99
HTSUS	8536.69.4040	8536.69.4040

Engineering Selection Recommendations

The 76383-418LF is the direct substitute for the obsolete 76383-418. Both components share identical mechanical and electrical interface specifications, including connector geometry, pitch, mounting configuration, and contact materials.

The primary distinction is product status: the 76383-418 is obsolete, while the 76383-418LF is active and currently manufactured. The 76383-418LF offers additional advantages for new designs and ongoing procurement:

RoHS compliance (versus non-compliant status of the original part)
Lead-free contact finish (Tin versus Tin-Lead)
Specified operating temperature range (-40°C ~ 125°C)
Specified current rating (3A)
Documented packaging format (Tube)

For applications requiring the exact tin-lead contact finish of the original 76383-418, compatibility must be evaluated against specific design requirements. The phosphor bronze contact material and overall electrical interface remain functionally equivalent.

Frequently Asked Questions (FAQ)

Q: Can the 76383-418LF directly replace the 76383-418 in existing designs?

A: Yes. Both parts maintain identical mechanical and electrical interface specifications, including connector type, position count, pitch, mounting orientation, shrouding, and termination method. The 76383-418LF is the active production equivalent.

Q: What is the difference between the contact finishes?

A: The 76383-418 uses Tin-Lead finish (150.0µin / 3.81µm thickness), while the 76383-418LF uses Tin finish (78.7µin / 2.00µm thickness). Both finishes are applied to phosphor bronze contacts. The lead-free composition of the 76383-418LF aligns with RoHS compliance requirements.

Q: Are there packaging differences between these parts?

A: The 76383-418LF is supplied in Tube packaging. The original 76383-418 packaging format is not specified in available documentation.

Q: What is the significance of the "LF" designation in the part number?

A: The "LF" suffix indicates lead-free composition, reflecting the transition from tin-lead to lead-free contact finishes in modern connector manufacturing.

Q: Are both parts suitable for the same operating conditions?

A: The 76383-418LF specifies an operating temperature range of -40°C ~ 125°C and a current rating of 3A. The original 76383-418 does not provide these specifications. Applications requiring specific thermal or current performance should reference the 76383-418LF specifications.

Q: What is the moisture sensitivity level for these connectors?

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

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