U Contact Gasket for EMI Shielding and Electrical Grounding
The U Contact Gasket is an electrical contact solution designed to provide reliable grounding, bonding, and EMI shielding in electronic assemblies and enclosures. Manufactured from beryllium copper, these contact gaskets maintain consistent electrical continuity between conductive surfaces. As a result, they help reduce electromagnetic interference (EMI) and radio frequency interference (RFI).
U Contact Gaskets are commonly used in telecommunications equipment, aerospace systems, military electronics, industrial controls, and commercial enclosures. In addition, their spring-contact design provides long service life while accommodating dimensional changes and repeated compression cycles.
Engineers often specify U Contact Gaskets when creating grounding paths between panels, doors, covers, and other conductive components. Therefore, they help maintain low contact resistance and reliable conductivity throughout the life of the equipment.
Furthermore, U Contact Gaskets are available in a variety of lengths and configurations. As a result, they can be integrated into many shielding and grounding applications. Finally, their durable design makes them a dependable choice for demanding electronic environments.
Options
PP = plating code from plating code table below
X.XXX = Desired length
| Leader Tech Part Number | A (in) | B (in) | C (in) | D (in) | F (in) | G (in) | T (in) | Max Length (in) | Fingers at Max Length | Adhesive |
|---|---|---|---|---|---|---|---|---|---|---|
| Leader Tech Part Number | A (in) | B (in) | C (in) | D (in) | F (in) | G (in) | T (in) | Max Length (in) | Fingers at Max Length | Adhesive |
| 7-13U-PP-X.XXX | 0.070 | 0.130 | 0.070 | 0.102 | 0.040 | 0.020 | 0.0040 | 24 | 400 | N |
| 13-28U-PP-X.XXX | 0.130 | 0.280 | 0.160 | 0.230 | 0.095 | 0.040 | 0.0100 | 24 | 178 | N |
| 28-49U-PP-X.XXX | 0.280 | 0.490 | 0.340 | 0.380 | 0.125 | 0.062 | 0.0064 | 24 | 129 | N |
| Leader Tech Part Number | A (mm) | B (mm) | C (mm) | D (mm) | F (mm) | G (mm) | T (mm) | Max Length (mm) | Fingers at Max Length | Adhesive |
|---|---|---|---|---|---|---|---|---|---|---|
| Leader Tech Part Number | A (mm) | B (mm) | C (mm) | D (mm) | F (mm) | G (mm) | T (mm) | Max Length (mm) | Fingers at Max Length | Adhesive |
| 7-13U-PP-X.XXX | 1.78 | 3.30 | 1.78 | 2.59 | 1.02 | 0.51 | 0.102 | 609 | 400 | N |
| 13-28U-PP-X.XXX | 3.30 | 7.11 | 4.06 | 5.84 | 2.41 | 1.02 | 0.254 | 609 | 178 | N |
| 28-49U-PP-X.XXX | 7.11 | 12.45 | 8.64 | 9.65 | 3.18 | 1.57 | 0.163 | 611 | 129 | N |
| Plating Code | Plating | Specification |
|---|---|---|
| BD | As Heat treated | As Heat Treated with Nitrogen |
| AU | Gold | ASTM B488, TYPE I, CODE C, CLASS 1.25 PRECEDED BY AN UNDERCOAT OF AT LEAST .000047" OF COPPER PER SAE-AMS2418 AND AT LEAST .000047" OF NICKEL PER SAE-AMS-QQ-N-290 |
| AG | Silver, Bright | ASTM B700, TYPE 2, GRADE B, CLASS N .0001" MIN PRECEDED BY A NICKEL UNDERCOAT AT LEAST .000039" THICK PER SAE-AMS-QQ-N-290 |
| MAG | Silver, Matte | ASTM B700, TYPE 2, GRADE A, CLASS N .0001" MIN PRECEDED BY A NICKEL UNDERCOAT AT LEAST .000039" THICK PER SAE-AMS-QQ-N-290 |
| CDC | Cadmium Chromate, Clear | ASTM B766, CLASS 5, TYPE III |
| CDY | Cadmium Chromate, Yellow | ASTM B766, CLASS 5, TYPE II |
| NI | Electroless Nickel RoHS | ASTM B733, TYPE IV, SC1, CLASS 1 |
| SN | Tin, Bright | ASTM B545, CLASS A PRECEDED BY A NICKEL UNDERCOAT AT LEAST .00005" THICK PER SAE-AMS-QQ-N-290 |
| ST | Tin, Matte | ASTM B545, CLASS A PRECEDED BY A NICKEL UNDERCOAT AT LEAST .00005" THICK PER SAE-AMS-QQ-N-290 |
| SNPB | Tin Lead | ASTM B 579, SC2 PRECEDED BY AN UNDERCOAT OF AT LEAST .000098" OF COPPER PER SAE-AMS2418 AND AT LEAST .000098" OF NICKEL PER SAE-AMS-QQ-N-290 |
| SU | Solderable Unplated | - |
| ZNC | Zinc, Clear | ASTM B633, SC1, TYPE III |
| ZNY | Zinc, Yellow | ASTM B633, SC1, TYPE II |