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