3M 4620-7305 Equivalent & Substitute Parts

Part Overview

The 3M 4620-7305 is a 20-position rectangular plug connector with IDC (Insulation Displacement Contact) termination, designed for discrete or ribbon cable applications with 26-28 AWG wire gauges. This connector features gold-plated contacts, a closed-end design, and latch lock/eject hook fastening. The part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility for ongoing system support and new designs.

Key Parameters

Parameter	Value
Manufacturer	3M
Series	4600
Connector Type	Plug
Contact Type	Male Pin
Number of Positions	20
Pitch	0.100" (2.54mm)
Number of Rows	2
Row Spacing	0.100" (2.54mm)
Mounting Type	Free Hanging (In-Line)
Cable Termination	IDC
Wire Gauge	26-28 AWG, Stranded or Solid
Contact Finish	Gold
Contact Finish Thickness	30.0µin (0.76µm)
Color	Gray
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the 3M 4620-7305 is determined by strict equivalence across the following critical parameters:

Manufacturer and series consistency (3M 4600 series)
Identical connector type, contact type, and position count (Plug, Male Pin, 20 positions)
Matching pitch and row spacing (0.100" / 2.54mm)
Identical cable termination method (IDC)
Compatible wire gauge range (26-28 AWG)
Matching contact finish and thickness (Gold, 30.0µin)
Equivalent or superior compliance status (ROHS3, MSL 1)

The two identified substitutes, 4620-6000 and 4620-6300, maintain full electrical and mechanical compatibility with the obsolete 4620-7305 across all critical parameters. Both are active products from 3M's 4600 series with current inventory availability.

Parameter Comparison

Parameter	4620-7305 (Main)	4620-6000 (Substitute)	4620-6300 (Substitute)
Product Status	Obsolete	Active	Active
Connector Type	Plug	Plug	Plug
Contact Type	Male Pin	Male Pin	Male Pin
Number of Positions	20	20	20
Pitch	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Number of Rows	2	2	2
Row Spacing	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Mounting Type	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)
Fastening Type	Latch Lock/Eject Hooks, Long	Not specified	Latch Lock/Eject Hooks, Long
Cable Termination	IDC	IDC	IDC
Wire Type	Discrete or Ribbon Cable	Discrete or Ribbon Cable	Discrete or Ribbon Cable
Wire Gauge	26-28 AWG, Stranded or Solid	26-28 AWG, Stranded or Solid	26-28 AWG, Stranded or Solid
Features	Closed End	Feed Through	Feed Through
Contact Finish	Gold	Gold	Gold
Contact Finish Thickness	30.0µin (0.76µm)	30.0µin (0.76µm)	30.0µin (0.76µm)
Color	Gray	Gray	Gray
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	Not specified	REACH Unaffected	REACH Unaffected
Inventory Status	1110 Pcs New Original In Stock	2727 Pcs New Original In Stock	1722 Pcs New Original In Stock

Engineering Selection Recommendations

Both 4620-6000 and 4620-6300 are qualified substitutes for the obsolete 4620-7305 based on active product status and full compliance equivalence. Selection between the two substitutes depends on fastening requirements:

The 4620-6300 maintains the latch lock/eject hook fastening specification identical to the original 4620-7305, making it the direct functional equivalent for applications requiring this fastening mechanism.

The 4620-6000 omits fastening type specification but provides feed-through design capability. This variant is suitable for applications where fastening type is not a critical constraint.

Both substitutes carry ROHS3 compliance and REACH unaffected status, confirming regulatory equivalence. Inventory availability is adequate for both options, with 4620-6000 offering the highest stock level at 2727 pieces.

Frequently Asked Questions (FAQ)

Q: Can 4620-6000 and 4620-6300 be used interchangeably with 4620-7305?

A: Both parts are electrically and mechanically compatible substitutes. The primary difference is fastening type specification. The 4620-6300 explicitly matches the latch lock/eject hook fastening of the original part. The 4620-6000 does not specify fastening type but maintains all other critical parameters.

Q: What is the difference between "Closed End" and "Feed Through" features?

A: The 4620-7305 features a closed-end design, while both substitutes feature feed-through design. This distinction relates to connector housing configuration but does not affect electrical or mechanical compatibility for IDC termination applications.

Q: Are there compliance or regulatory differences between the three parts?

A: All three parts are ROHS3 compliant with MSL 1 rating. The substitutes carry explicit REACH unaffected status. No compliance barriers exist for substitution.

Q: Which substitute should be selected for new designs?

A: For new designs requiring identical fastening characteristics, select 4620-6300. For applications where fastening type is not specified or flexible, either substitute is acceptable. Both are active products with current manufacturing support.

Q: What is the significance of the 0.100" pitch specification?

A: The 0.100" (2.54mm) pitch defines the contact spacing in both rows and the row-to-row spacing. This parameter must remain constant across all substitutes to ensure mechanical and electrical compatibility with mating connectors and PCB layouts.

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