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3421-7020 The 3M 3421-7020 is a 20-position IDC ribbon cable receptacle with 2.54mm pitch, designed for free hanging mounting. It features gold-plated female socket contacts and accepts 26-28 AWG wire.
Mfr Part #:

3421-7020

Available from 1 distributors
Mfr Name: 3M Electronic Solutions
3M Electronic Solutions
The 3M 3421-7020 is a 20-position IDC ribbon cable receptacle with 2.54mm pitch, designed for free hanging mounting. It features gold-plated female socket contacts and accepts 26-28 AWG wire.
Total Stock: 10 pcs
$ Price Range: $3.14 - $5.48

3421-7020 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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10 pcs
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3421-7020 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

3421-7020 Description

Short technical summary and product information.

The 3M 3421-7020 is a 20-position IDC ribbon cable receptacle from the 3000 Series. It features a dual-row 2.54mm pitch and 0.100" row spacing, optimized for mass-termination of 26-28 AWG ribbon cable. The female socket contacts have a gold finish (30.0µin) for reliable low-resistance connections.

 

This connector is designed for free hanging (in-line) mounting and uses IDC termination for quick cable assembly without stripping. The closed-end design and integrated strain relief enhance mechanical durability and prevent cable damage. The gray housing provides visual identification.

 

Typical applications include internal wiring in computers, peripherals, and industrial control systems where compact, high-density interconnects are needed. The 3421-7020 is RoHS3 compliant and has an MSL of 1 (unlimited).

3421-7020 Quick Information

Product Type: IDC Ribbon Cable Receptacle
Series: 3421
Canonical Name: 3M 3421-7020 20-Position IDC Ribbon Cable Receptacle, Female Socket, Free Hanging
Subcategory: IDC Receptacle

3421-7020 Compliance

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

3421-7020 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.

3421-7020 Features

  • 20-position IDC ribbon cable receptacle.
  • 2.54mm pitch with dual rows.
  • Gold-plated female socket contacts.
  • Closed end with integrated strain relief.
  • Accepts 26-28 AWG ribbon cable.

3421-7020 Applications

  • Ribbon cable termination in free-hanging assemblies.
  • Internal data and signal routing in electronics.
  • Closed end design prevents misinsertion.
  • Suitable for prototype and production harnesses.

3421-7020 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the position count of the 3421-7020?

20 positions.

What is the pitch of the 3421-7020?

2.54mm (0.100").

What is the mounting type?

Free hanging (in-line).

What wire gauge does the 3421-7020 accommodate?

26-28 AWG ribbon cable.

What is the contact finish?

Gold, 30.0µin (0.76µm).

What termination style does it use?

IDC (Insulation Displacement Connection).

What features does this connector have?

Closed end and strain relief.

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