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3M 8420-21B1-RK-TR chip carrier socket with glass filled polyphenylene sulfide insulation and RoHS compliance

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3M 8420-21B1-RK-TR chip carrier socket with glass filled polyphenylene sulfide insulation and RoHS compliance

Number of Positions : 20P

Adaptation Package Type : PLCC

Description : 20P PLCC IC Sockets RoHS

Mfr. Part # : 8420-21B1-RK-TR

Model Number : 8420-21B1-RK-TR

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Product Overview

The 3M Chip Carrier Sockets Surfacemount 8400 Series are designed to accept chip carriers conforming to JEDEC outlines MO-047 for square and MO-052 for rectangular. These sockets feature a high-temperature insulator compatible with IR reflow and wave soldering processes, and are suitable for automated loading equipment. The open-top design promotes unrestricted airflow, while molded slots facilitate easy device extraction. Optional PCB locating posts are available. These sockets are RoHS Compliant.

Product Attributes

Brand: 3M
Product Line: 3M Chip Carrier Sockets
Series: 8400 Series
Type: Surfacemount
Insulation Material: Glass Filled Polyphenylene Sulfide (PPS)
Flammability: UL 94V-0
Color: Black
Contact Material: Copper Alloy
Underplating: 50 " [ 1.27 m ] Nickel
Overall Wiping Area Plating: 160 ", [ 4.06 m ] Matte Tin
RoHS Compliance: Compliant (RIA E1 and C1 apply)
Moisture Sensitivity Level: 1 (per J-STD-020C)

Technical Specifications

Specification	Value
Contact Resistance	15 m
Insulation Resistance	>10³ M minimum
Capacitance	<1 pF at 1 MHz
Temperature Rating	-40C to +105C
Process Rating	Maximum 260C, single pass (profile per J-STD-020C)

Ordering Information & Dimensions

Contact Quantity	A [inch]	B [inch]	C [inch]	D [inch]	E [inch]	F [inch]	G [inch]	H [inch]	Alignment Feature	Packaging
20	15.65 [0.616]	15.65 [0.616]	5.08 [0.200]	5.08 [0.200]	10.03 [0.395]	10.03 [0.395]	12.70 [0.500]	6.35 [0.250]	A = With Location Post (tube packaging only) / B = Without Location Post	TP = Tube Pack / TR = Tape and Reel (contact 3M for dimensions)
28	18.18 [0.716]	18.18 [0.716]	7.62 [0.300]	7.62 [0.300]	12.57 [0.495]	12.57 [0.495]	15.24 [0.600]	7.62 [0.300]	A = With Location Post (tube packaging only) / B = Without Location Post	TP = Tube Pack / TR = Tape and Reel (contact 3M for dimensions)
32	18.18 [0.716]	20.75 [0.817]	7.62 [0.300]	10.16 [0.400]	12.57 [0.495]	15.11 [0.595]	17.78 [0.700]	7.62 [0.300]	A = With Location Post (tube packaging only) / B = Without Location Post	TP = Tube Pack / TR = Tape and Reel (contact 3M for dimensions)
44	23.28 [0.917]	23.28 [0.917]	12.70 [0.500]	12.70 [0.500]	17.65 [0.695]	17.65 [0.695]	20.32 [0.800]	10.16 [0.400]	A = With Location Post (tube packaging only) / B = Without Location Post	TP = Tube Pack / TR = Tape and Reel (contact 3M for dimensions)
52	25.84 [1.017]	25.84 [1.017]	15.24 [0.600]	15.24 [0.600]	20.19 [0.795]	20.19 [0.795]	22.86 [0.900]	11.43 [0.450]	A = With Location Post (tube packaging only) / B = Without Location Post	TP = Tube Pack / TR = Tape and Reel (contact 3M for dimensions)
68	30.95 [1.219]	30.95 [1.219]	20.32 [0.800]	20.32 [0.800]	25.27 [0.995]	25.27 [0.995]	27.94 [1.100]	13.97 [0.550]	A = With Location Post (tube packaging only) / B = Without Location Post	TP = Tube Pack / TR = Tape and Reel (contact 3M for dimensions)
84	36.00 [1.417]	36.00 [1.417]	25.40 [1.000]	25.40 [1.000]	30.35 [1.195]	30.35 [1.195]	33.02 [1.300]	16.51 [0.650]	A = With Location Post (tube packaging only) / B = Without Location Post	TP = Tube Pack / TR = Tape and Reel (contact 3M for dimensions)

Note: Dimensions in mm (Inch). Tolerance Unless Noted: .3 mm, .20 [ ] Dimensions for Reference Only.

Important Notice: 3M PLCC products have tin plating on the contact wiping surface, necessary for mated reliability. Tin whiskers are an inherent characteristic of tin, and mechanical stress can stimulate growth. Users should consider the suitability of PLCC sockets for their specific applications, considering lifespan, environment, mechanical stresses, humidity, and thermal cycling. 3M follows iNEMI plating recommendations for whisker mitigation.

Warranty: Limited to ninety (90) days from purchase for defects in material and manufacture. 3M disclaims other warranties, including implied warranties of merchantability or fitness for a particular purpose. Remedies are limited to replacement, repair, or refund at 3M's option. 3M is not liable for indirect, special, incidental, or consequential damages.

2410121845_3M-8420-21B1-RK-TR_C5550975.pdf

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