High Reliability Surfacemount Chip Carrier Socket 3M 8452-21B1-RK-TP for Automated Loading Equipment
Product Overview
The 3M Chip Carrier Sockets Surfacemount 8400 Series are designed to accept chip carriers conforming to JEDEC outline MO-047 for square and MO-052 for rectangular devices. These sockets feature a high-temperature insulator compatible with IR reflow and wave soldering, and are suitable for automated loading equipment. The open-top design ensures unrestricted airflow, while molded slots facilitate easy device extraction. Optional PCB locating posts are available. These sockets are RoHS Compliant.
Product Attributes
- Brand: 3M
- Series: 8400 Series
- Product Type: Chip Carrier Sockets
- Mounting Type: Surfacemount
- Insulation Material: Glass Filled Polyphenylene Sulfide (PPS)
- Insulator Flammability: UL 94V-0
- Insulator Color: Black
- Contact Material: Copper Alloy
- Plating (Underplating): 50 " [ 1.27 m ] Nickel
- Plating (Overall Wiping Area): 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
Note on Tin Plating: 3M PLCC products are tin plated on the contact wiping surface. This is necessary for mated reliability, as standard PLCC contacts are also tin plated. Tin whiskers are an inherent characteristic of tin, and mechanical stress can drive whisker growth. It is possible for the PLCC and PLCC socket to exhibit tin whisker growth after mating. 3M follows iNEMI plating recommendations, which include whisker-mitigating tin plating chemistry to reduce the likelihood of growth. Users should consider the suitability of a PLCC socket for their specific application, considering lifespan, environment, mechanical stresses, humidity, and thermal cycling.
| Contact Quantity | A [mm (Inch)] | B [mm (Inch)] | C [mm (Inch)] | D [mm (Inch)] | E [mm (Inch)] | F [mm (Inch)] | G [mm (Inch)] | H [mm (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) | B = Without Location Post | TP = Tube Pack |
| 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) | B = Without Location Post | TP = Tube Pack |
| 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) | B = Without Location Post | TP = Tube Pack |
| 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) | B = Without Location Post | TP = Tube Pack |
| 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) | B = Without Location Post | TP = Tube Pack |
| 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) | B = Without Location Post | TP = Tube Pack |
| 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) | B = Without Location Post | TP = Tube Pack |
| 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) | TP = Tube Pack |
| 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) | TP = Tube Pack |
| 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) | TP = Tube Pack |
| 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) | TP = Tube Pack |
| 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) | TP = Tube Pack |
| 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) | TP = Tube Pack |
| 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) | TP = Tube Pack |
Note: For Tape and Reel Packaging dimensions, contact 3M customer service or your preferred 3M distributor.
Tolerance: Unless Noted: .3 mm / .20 [ ] Dimensions for Reference Only
2410121845_3M-8452-21B1-RK-TP_C6098950.pdf
