How do the 3M 8428 Series variants differ?

3M 8428 Series part numbers differ by mounting type, package and pitch - post. Use the selection guide above to pick by mounting type.

How many 3M 8428 Series part numbers are listed?

3 3M 8428 Series part numbers are listed, each with specifications and a datasheet where available.

3M 8428 Series

3 variants · 3M

About the 3M 8428 Series

The 3M 8428 Series series groups 3 related part numbers, each listed with full specifications, a datasheet where available, and an RFQ option. Every variant in the range shares a common contact finish - mating of Tin, contact finish - post of Tin and contact finish thickness - mating of 160.0µin (4.06µm). Variants differ by mounting type, package and pitch - post, so you can match the exact mounting type your application requires using the selection guide below. All listed 3M 8428 Series part numbers are active and orderable.

Select a variant by

Mounting type: Surface Mount · Through Hole
Package: Tape & Reel (TR); Cut Tape (CT) · Tube
Pitch - post: 0.050\" (1.27mm) · 0.100\" (2.54mm)

Shared specifications

Contact finish - mating: Tin
Contact finish - post: Tin
Contact finish thickness - mating: 160.0µin (4.06µm)
Contact finish thickness - post: 160.0µin (4.06µm)
Contact material - mating: Copper Alloy
Contact material - post: Copper Alloy
Current rating: 1 A
Features: Closed Frame
Housing material: Polybutylene Terephthalate (PBT), Glass Filled
Material flammability rating: UL94 V-0
Number of positions or pins: 28 (4 x 7)
Operating temperature: -40°C ~ 105°C

Variant comparison

Parameter	8428-11B1-RK-TP	8428-21B1-RK-TP	8428-21B1-RK-TR
Mounting type	Through Hole	Surface Mount	Surface Mount
Package	Tube	Tube	Tape & Reel (TR); Cut Tape (CT)
Pitch - post	0.100\" (2.54mm)	0.050\" (1.27mm)	0.050\" (1.27mm)

Request a quote on any 3M 8428 Series part number and we confirm price, availability and lead time per line — including end-of-life and allocation-constrained variants.

Frequently asked questions

How do the 3M 8428 Series variants differ?: 3M 8428 Series part numbers differ by mounting type, package and pitch - post. Use the selection guide above to pick by mounting type.
How many 3M 8428 Series part numbers are listed?: 3 3M 8428 Series part numbers are listed, each with specifications and a datasheet where available.
How do I get pricing and lead time for 3M 8428 Series?: Request a quote (RFQ) for any 3M 8428 Series part number and we confirm price, availability and lead time per line — including end-of-life and hard-to-find variants.