R Contact Gasket for Reliable EMI Shielding and Grounding
The R Contact Gasket provides reliable grounding, bonding, and EMI shielding in electronic equipment and enclosures. Manufactured from beryllium copper, these gaskets maintain electrical continuity between conductive surfaces, reducing electromagnetic interference (EMI) and radio frequency interference (RFI).
R Contact Gaskets are widely used in aerospace, defense, telecommunications, industrial electronics, medical equipment, and commercial electronic systems. Their spring‑contact design delivers consistent pressure during repeated compression cycles, ensuring long‑term electrical performance.
Engineers use R Contact Gaskets to create grounding paths between enclosure panels, access doors, covers, and other conductive components. The design compensates for dimensional changes while maintaining low contact resistance and effective shielding.
Leader Tech offers R Contact Gaskets in various lengths and configurations, making them adaptable to diverse grounding and EMI shielding applications. Their durable construction ensures dependable performance in 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 |
| 8-92RC-PP-X.XXX | 0.090 | 0.920 | 0.300 | 0.630 | 0.140 | 0.187 | 0.0050 | 16 | 85 | N |
| 11-89RA-PP-X.XXX | 0.130 | 0.890 | 0.810 | 0.600 | 0.140 | 0.187 | 0.0050 | 16 | 85 | N |
| 12-75RS-PP-X.XXX | 0.120 | 0.750 | 0.120 | 0.650 | 0.140 | 0.187 | 0.0050 | 16 | 85 | Y |
| 22-77RR-PP-X.XXX | 0.230 | 0.770 | 0.640 | 0.620 | 0.140 | 0.187 | 0.0050 | 16 | 85 | 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 |
| 8-92RC-PP-X.XXX | 2.29 | 23.37 | 7.62 | 16.00 | 3.56 | 4.75 | 0.127 | 406 | 85 | N |
| 11-89RA-PP-X.XXX | 3.30 | 22.61 | 20.57 | 15.24 | 3.56 | 4.75 | 0.127 | 406 | 85 | N |
| 12-75RS-PP-X.XXX | 3.05 | 19.05 | 3.05 | 16.51 | 3.56 | 4.75 | 0.127 | 406 | 85 | Y |
| 22-77RR-PP-X.XXX | 5.84 | 19.56 | 16.26 | 15.75 | 3.56 | 4.75 | 0.127 | 406 | 85 | 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 |