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3421-7620 20 position IDC receptacle connector from 3M, featuring 2.54mm pitch, gold contacts, and free hanging mounting for 26-28 AWG ribbon cable.
Mfr Part #:

3421-7620

Available from 1 distributors
Mfr Name: 3M Electronic Solutions
3M Electronic Solutions
20 position IDC receptacle connector from 3M, featuring 2.54mm pitch, gold contacts, and free hanging mounting for 26-28 AWG ribbon cable.
Total Stock: 400 pcs
$ Price Range: $3.14 - $5.48

3421-7620 Available from 1 distributor

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Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
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400 pcs
400 pcs On Request 1 On Request On Request On Request On Request On Request

3421-7620 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Cable Termination
Color
Connector Type
Contact Finish
Contact Finish Thickness
Contact Type
Features
Lead Spacing
Lead Style
Mounting Type
Number of Positions
Number of Rows
Pitch
Row Spacing
Termination Style
Wire Gauge
Wire Type

3421-7620 Description

Short technical summary and product information.

The 3421-7620 is a 20 position IDC receptacle connector from 3M designed for ribbon cable termination. It features two rows with a 2.54mm (0.100") pitch and row spacing, and uses female socket contacts with a gold finish of 30.0µin (0.76µm) thickness.

 

This free hanging (in-line) connector accepts 26-28 AWG ribbon cable via insulation displacement contact (IDC) termination, eliminating the need for wire stripping. The gray housing includes a closed end, polarizing key, and strain relief for secure cable retention.

 

Typical applications include internal wire-to-board connections in electronic equipment, data communication cable assemblies, and prototyping setups where mass termination of ribbon cables is required. The dual row design and standard 2.54mm pitch ensure compatibility with common header configurations.

3421-7620 Quick Information

Product Type: Rectangular Connector - Free Hanging IDC Receptacle
Canonical Name: 3M 3421-7620 20 Position IDC Receptacle Connector
Subcategory: IDC Receptacle

3421-7620 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

3421-7620 Estimated Pricing

Qty Low High
1+ $5.48 $5.48
10+ $4.66 $4.66
25+ $4.36 $4.36
50+ $4.16 $4.16
100+ $3.96 $3.96
300+ $3.66 $3.66
600+ $3.49 $3.49
1,200+ $3.32 $3.32
2,700+ $3.14 $3.14

Estimated market price range - modelled values for guidance only, not live distributor offers.

3421-7620 Features

  • 20 position dual row IDC receptacle.
  • Gold plated contacts for reliable connection.
  • Accepts 26-28 AWG ribbon cable.
  • Free hanging in-line mounting design.
  • Includes polarizing key and strain relief.

3421-7620 Applications

  • Internal wire-to-board connections in electronics.
  • Data communication cable assemblies.
  • Prototyping and test equipment wiring.
  • Mass termination of ribbon cables for IDC connectors.

3421-7620 FAQs

7 frequently asked questions generated from this part’s specifications.
How many positions does the 3421-7620 have?

It has 20 positions arranged in 2 rows.

What is the pitch of the 3421-7620?

The pitch is 2.54mm (0.100").

What is the mounting type of this connector?

Free hanging (in-line) mounting.

What wire gauge is supported?

26-28 AWG ribbon cable.

What is the contact finish?

Gold with 30.0µin (0.76µm) thickness.

What termination method does this connector use?

IDC (Insulation Displacement Contact).

What features does the connector include?

Closed end, polarizing key, and strain relief.

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