28 (4 x 7) Pos PLCC Socket Tin Surface Mount
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8428-21B1-RK-TR

DigiKey Part Number
3M2821B1TR-ND - Tape & Reel (TR)
3M2821B1CT-ND - Cut Tape (CT)
3M2821B1DKR-ND - Digi-Reel®
Manufacturer
Manufacturer Product Number
8428-21B1-RK-TR
Description
CONN SOCKET PLCC 28POS TIN
Customer Reference
Detailed Description
28 (4 x 7) Pos PLCC Socket Tin Surface Mount
Datasheet
 Datasheet
EDA/CAD Models
8428-21B1-RK-TR Models
Product Attributes
Type
Description
Select All
Category
Manufacturer
3M
Series
Packaging
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
Part Status
Last Time Buy
Type
PLCC
Number of Positions or Pins (Grid)
28 (4 x 7)
Pitch - Mating
0.050" (1.27mm)
Contact Finish - Mating
Tin
Contact Finish Thickness - Mating
160.0µin (4.06µm)
Contact Material - Mating
Copper Alloy
Mounting Type
Surface Mount
Features
Closed Frame
Termination
Solder
Pitch - Post
0.050" (1.27mm)
Contact Finish - Post
Tin
Contact Finish Thickness - Post
160.0µin (4.06µm)
Contact Material - Post
Copper Alloy
Housing Material
Polybutylene Terephthalate (PBT), Glass Filled
Operating Temperature
-40°C ~ 105°C
Termination Post Length
0.132" (3.35mm)
Material Flammability Rating
UL94 V-0
Current Rating (Amps)
1 A
Contact Resistance
15mOhm
Base Product Number
Product Questions and Answers

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In-Stock: 2,560
Check for Additional Incoming Stock
Last Time Buy Date: 2026-03-31
All prices are in CAD
Tape & Reel (TR)
QuantityUnit PriceExt Price
450$1.99624$898.31
900$1.90099$1,710.89
1,350$1.84739$2,493.98
2,250$1.78204$4,009.59
3,150$1.74026$5,481.82
4,500$1.69705$7,636.72
Manufacturers Standard Package
Cut Tape (CT)
QuantityUnit PriceExt Price
1$3.07000$3.07
10$2.61200$26.12
25$2.44800$61.20
50$2.33140$116.57
100$2.21990$221.99
Digi-Reel®
QuantityUnit PriceExt Price
1$3.39000$3.39
10$2.95800$29.58
25$2.83200$70.80
50$2.76920$138.46
100$2.64320$264.32
* All Digi-Reel orders will add a $9.50 reeling fee.