Amphenol ICC 91618-306 Rectangular Connector - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 91618-306 is a 12-position receptacle connector in the Dubox™ series, designed for board-to-board applications with 0.100" (2.54mm) pitch spacing. This surface mount connector features gold-plated mating contacts, push-pull fastening, and board lock functionality. The part is classified as obsolete, making identification of active equivalent components essential for ongoing production and maintenance applications.

Key Parameters

Parameter	Specification
Connector Type	Receptacle, Bottom or Top Entry
Number of Positions	12
Pitch - Mating	0.100" (2.54mm)
Number of Rows	2
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Surface Mount
Contact Type	Female Socket
Contact Finish - Mating	Gold (30.0µin / 0.76µm)
Fastening Type	Push-Pull
Material Flammability Rating	UL94 V-0
Insulation Material	Thermoplastic, Glass Filled
Contact Material	Phosphor Bronze
Mated Stacking Height	10.81mm
Series	Dubox™

Substitute Part Grouping Explanation

Substitution of the 91618-306 is determined by strict equivalence across the following critical parameters:

Connector geometry: 12 positions, 2 rows, 0.100" (2.54mm) pitch and row spacing
Electrical interface: Female socket contacts with gold mating finish (30.0µin thickness)
Mechanical interface: Surface mount termination with push-pull fastening and board lock
Contact material and post finish: Phosphor bronze with tin post finish (78.7µin thickness)
Insulation specifications: Thermoplastic glass-filled material, UL94 V-0 rating, gray color
Physical dimensions: 0.275" (6.99mm) insulation height, 10.81mm mated stacking height

The substitute part 91618-306LF maintains identical specifications across all these parameters, with the primary distinction being product status (active versus obsolete) and packaging format (tube versus unspecified).

Parameter Comparison

Parameter	91618-306 (Main Part)	91618-306LF (Substitute)
Manufacturer	Amphenol ICC (FCI)	Amphenol ICC (FCI)
Series	Dubox™	Dubox™
Connector Type	Receptacle, Bottom or Top Entry	Receptacle, Bottom or Top Entry
Number of Positions	12	12
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)
Number of Rows	2	2
Row Spacing - Mating	0.100" (2.54mm)	0.100" (2.54mm)
Mounting Type	Surface Mount	Surface Mount
Contact Type	Female Socket	Female Socket
Contact Finish - Mating	Gold	Gold
Contact Finish Thickness - Mating	30.0µin (0.76µm)	30.0µin (0.76µm)
Fastening Type	Push-Pull	Push-Pull
Insulation Color	Gray	Gray
Insulation Height	0.275" (6.99mm)	0.275" (6.99mm)
Material Flammability Rating	UL94 V-0	UL94 V-0
Contact Finish - Post	Tin	Tin
Mated Stacking Heights	10.81mm	10.81mm
Insulation Material	Thermoplastic, Glass Filled	Thermoplastic, Glass Filled
Contact Shape	Square	Square
Contact Material	Phosphor Bronze	Phosphor Bronze
Contact Finish Thickness - Post	78.7µin (2.00µm)	78.7µin (2.00µm)
Base Product Number	91618	91618
Product Status	Obsolete	Active
RoHS Status	RoHS non-compliant	RoHS Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
ECCN	EAR99	EAR99
HTSUS	8536.69.4040	8536.69.4040

Engineering Selection Recommendations

The 91618-306LF is the direct active equivalent of the obsolete 91618-306. Both parts share identical electrical and mechanical specifications, ensuring functional interchangeability in board-to-board connector applications.

The primary distinction between these parts is regulatory compliance status. The 91618-306LF carries RoHS Compliant certification, whereas the 91618-306 is RoHS non-compliant. For new designs or applications subject to RoHS requirements, the 91618-306LF is the appropriate selection. Both parts maintain identical MSL rating (1 - Unlimited) and ECCN classification (EAR99).

Packaging format differs between the two parts: the 91618-306LF is supplied in tube packaging, while the original part number does not specify packaging format. This distinction affects handling and storage procedures but does not impact electrical or mechanical performance.

Frequently Asked Questions (FAQ)

Q: Can the 91618-306LF be used as a direct replacement for the 91618-306?

A: Yes. The 91618-306LF maintains identical specifications across all electrical and mechanical parameters, including connector geometry, contact materials, finishes, and physical dimensions. The parts are functionally interchangeable.

Q: What is the significance of the "LF" suffix in the part number 91618-306LF?

A: The "LF" designation indicates RoHS Compliant status. The 91618-306LF meets RoHS requirements, whereas the original 91618-306 does not. This distinction is critical for applications subject to RoHS regulations.

Q: Are there any differences in contact performance between these parts?

A: No. Both parts use identical phosphor bronze contact material with gold mating finish (30.0µin thickness) and tin post finish (78.7µin thickness). Contact geometry, spacing, and electrical characteristics are identical.

Q: How does packaging affect part selection?

A: The 91618-306LF is supplied in tube packaging. Packaging format affects handling, storage, and logistics but does not impact connector performance or compatibility. Selection should be based on supply chain and inventory management requirements.

Q: Are both parts suitable for automotive and industrial applications?

A: Yes. Both the 91618-306 and 91618-306LF are specified for automotive, general purpose, industrial, and telecommunications applications. The UL94 V-0 flammability rating and thermoplastic glass-filled insulation material support these application categories.

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

A: Both parts carry MSL rating 1 (Unlimited), indicating no moisture sensitivity restrictions. These connectors do not require special moisture control during storage or handling.

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