Amphenol ICC 89947-740LF Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 89947-740LF is a 40 Position Rectangular Receptacle Connector with IDC termination, designed for ribbon cable applications at 28 AWG wire gauge. This connector is part of the Minitek® 2.00mm series and features gold-plated contacts with a polarizing key for secure mating. The part is currently listed as obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations.

Key Parameters

Parameter	Value
Manufacturer Part Number	89947-740LF
Manufacturer	Amphenol ICC (FCI)
Category	Rectangular Connectors
Series	Minitek® 2.00mm
Connector Type	Receptacle
Contact Type	Female Socket
Number of Positions	40
Pitch	0.079" (2.00mm)
Number of Rows	2
Row Spacing	0.079" (2.00mm)
Mounting Type	Free Hanging (In-Line)
Cable Termination	IDC
Wire Type	Ribbon Cable
Wire Gauge	28 AWG
Contact Finish	Gold
Contact Finish Thickness	30.0µin (0.76µm)
Features	Feed Through, Polarizing Key
Color	Black
Product Status	Obsolete
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the 89947-740LF is determined by strict equivalence across the following critical parameters:

Connector Type & Contact Configuration: Receptacle with female socket contacts
Position Count & Pitch: 40 positions at 0.079" (2.00mm) pitch
Row Configuration: 2 rows with 0.079" (2.00mm) row spacing
Termination Method: IDC (Insulation Displacement Contact) for ribbon cable
Wire Specifications: 28 AWG ribbon cable compatibility
Contact Material & Finish: Gold plating at 30.0µin (0.76µm) thickness
Mechanical Features: Feed through capability with polarizing key
Series Compatibility: Minitek® 2.00mm series

The substitute part 89947-340LF meets all these criteria, maintaining full electrical and mechanical compatibility with the original 89947-740LF connector.

Parameter Comparison

Parameter	89947-740LF (Main Part)	89947-340LF (Substitute)	Compatibility
Manufacturer	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Identical
Series	Minitek® 2.00mm	Minitek® 2.00mm	Identical
Connector Type	Receptacle	Receptacle	Identical
Contact Type	Female Socket	Female Socket	Identical
Number of Positions	40	40	Identical
Pitch	0.079" (2.00mm)	0.079" (2.00mm)	Identical
Number of Rows	2	2	Identical
Row Spacing	0.079" (2.00mm)	0.079" (2.00mm)	Identical
Mounting Type	Free Hanging (In-Line)	Free Hanging (In-Line)	Identical
Cable Termination	IDC	IDC	Identical
Wire Type	Ribbon Cable	Ribbon Cable	Identical
Wire Gauge	28 AWG	28 AWG	Identical
Contact Finish	Gold	Gold	Identical
Contact Finish Thickness	30.0µin (0.76µm)	30.0µin (0.76µm)	Identical
Features	Feed Through, Polarizing Key	Feed Through, Polarizing Key	Identical
Color	Black	Black	Identical
Product Status	Obsolete	Active	Substitute is active
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	Identical
RoHS Status	Not specified	RoHS Compliant	Substitute meets RoHS
REACH Status	REACH Unaffected	REACH Affected	Substitute subject to REACH

Engineering Selection Recommendations

The 89947-340LF is the direct substitute for the obsolete 89947-740LF. Selection of the substitute is based on the following factors:

Product Status: The 89947-740LF is obsolete, while the 89947-340LF maintains active product status with current manufacturing support and availability (2053 pcs in stock versus 758 pcs for the obsolete part).

Regulatory Compliance: The 89947-340LF is RoHS Compliant, meeting current environmental regulations. Both parts maintain MSL 1 (Unlimited) moisture sensitivity classification and share identical ECCN and HTSUS codes.

Electrical & Mechanical Equivalence: All critical connector parameters are identical between the two parts, including position count, pitch, row configuration, contact type, termination method, and contact finish specifications. This ensures direct functional interchangeability in existing applications.

Packaging Consideration: The substitute is supplied in Tube packaging, whereas the main part packaging is not specified. This difference does not affect electrical or mechanical performance.

Frequently Asked Questions (FAQ)

Q: Can the 89947-340LF be used as a direct replacement for the 89947-740LF?

A: Yes. The 89947-340LF is electrically and mechanically equivalent to the 89947-740LF. All connector parameters including position count, pitch, row spacing, contact type, termination method, and contact finish are identical. The substitute is suitable for direct replacement in existing designs.

Q: What is the primary reason to switch from the 89947-740LF to the 89947-340LF?

A: The 89947-740LF is obsolete with limited remaining inventory. The 89947-340LF is an active product with current manufacturing support and significantly higher stock availability, ensuring long-term supply chain reliability.

Q: Are there any compliance differences between these two parts?

A: The 89947-340LF is RoHS Compliant, whereas the compliance status of the 89947-740LF is not specified. Both parts are classified as REACH Affected or REACH Unaffected respectively, but share identical ECCN and HTSUS classifications. For applications requiring RoHS compliance, the 89947-340LF is the appropriate selection.

Q: Does the packaging difference affect connector performance?

A: No. The 89947-340LF is supplied in Tube packaging while the 89947-740LF packaging is not specified. Packaging affects only handling, storage, and logistics; it does not impact electrical or mechanical connector performance.

Q: Are the IDC termination specifications identical?

A: Yes. Both connectors are specified for 28 AWG ribbon cable with IDC termination. The contact finish, finish thickness, and all mechanical termination parameters are identical.

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