RK-Series domes have a feel similar to that of the round domes, featuring a “soft” tactile feel. Their unique oblong shape allows them to be placed close to other domes or components. RK-Series domes can be mounted on single or double-sided printed circuit boards, on flex circuits, or in membrane switch panels.
Contact Snaptron for pricing, to order, or to request samples of RK-Series domes.
PCB Pads
Part Numbers
| Part Number | Diameter | Height | Trip Force | Dimple | Life Cycles | Specs | Request Samples |
|---|---|---|---|---|---|---|---|
| RK22170 | 0.220" (5.59mm) | 0.012" (0.30mm) | 170g | No | up to 5,000,000 | Specs | Add to List |
| RK35170 | 0.350" (8.89mm) | 0.015" (0.38mm) | 170g | No | up to 5,000,000 | Specs | Add to List |
| RK35220 | 0.350" (8.89mm) | 0.018" (0.46mm) | 220g | No | up to 5,000,000 | Specs | Add to List |
| RK35300 | 0.350" (8.89mm) | 0.018" (0.46mm) | 300g | No | up to 5,000,000 | Specs | Add to List |
| RK50040 | 0.500" (12.7mm) | 0.014" (0.36mm) | 40g | No | up to 5,000,000 | Specs | Add to List |
| RK50170 | 0.500" (12.7mm) | 0.016" (0.41mm) | 170g | No | up to 5,000,000 | Specs | Add to List |
| RK50220 | 0.500" (12.7mm) | 0.019" (0.48mm) | 220g | No | up to 5,000,000 | Specs | Add to List |
| RK50300 | 0.500" (12.7mm) | 0.023" (0.58mm) | 300g | No | up to 5,000,000 | Specs | Add to List |
| RK50450 | 0.500" (12.7mm) | 0.024" (0.61mm) | 450g | No | up to 5,000,000 | Specs | Add to List |
Individual Part Number: RK22170
| Dim. A | 0.220" (5.59mm) |
| Dim. B | 0.165" (4.19mm) |
| Dim. C | 0.012" (0.30mm) |
| Dim. X (dome cavity) | 0.23" (5.84mm) |
| Dim. Y | 0.18" (4.57mm) |
| Fmax/Force | 170g +/- 30g, typical |
| Life Cycles | up to 5,000,000 |
| Dimple | No |
| Contact Configuration | SPST N.O. |
| Switching Voltage | 0.1 to 50 VDC |
| Switching Capacity | 1 Watt |
| Switching Current | 0.05 to 100 mA DC |
| Contact Bounce | <0.3ms make <0.6ms break |
| Base Material | SSTL |
| Plating | Nickel/Silver/Gold optional |
| Operating Temp Rating | -45 degrees C to +100 degrees C |
| Storage Temp Rating | -55 degrees C to +100 degrees C |
Individual Part Number: RK35170
| Dim. A | 0.350" (8.89mm) |
| Dim. B | 0.280" (7.11mm) |
| Dim. C | 0.015" (0.38mm) |
| Dim. X (dome cavity) | 0.37" (9.40mm) |
| Dim. Y | .300" (7.62mm) |
| Fmax/Force | 170g +/- 30g, typical |
| Life Cycles | up to 5,000,000 |
| Dimple | No |
| Contact Configuration | SPST N.O. |
| Switching Voltage | 0.1 to 50 VDC |
| Switching Capacity | 1 Watt |
| Switching Current | 0.05 to 100 mA DC |
| Contact Bounce | <0.3ms make <0.6ms break |
| Base Material | SSTL |
| Plating | Nickel/Silver/Gold optional |
| Operating Temp Rating | -45 degrees C to +100 degrees C |
| Storage Temp Rating | -55 degrees C to +100 degrees C |
Individual Part Number: RK35220
| Dim. A | 0.350" (8.89mm) |
| Dim. B | 0.280" (7.11mm) |
| Dim. C | 0.018" (0.46mm) |
| Dim. X (dome cavity) | 0.37" (9.40mm) |
| Dim. Y | 0.30" (7.62mm) |
| Fmax/Force | 220g +/- 30g, typical |
| Life Cycles | up to 5,000,000 |
| Dimple | No |
| Contact Configuration | SPST N.O. |
| Switching Voltage | 0.1 to 50 VDC |
| Switching Capacity | 1 Watt |
| Switching Current | 0.05 to 100 mA DC |
| Contact Bounce | <0.3ms make <0.6ms break |
| Base Material | SSTL |
| Plating | Nickel/Silver/Gold optional |
| Operating Temp Rating | -45 degrees C to +100 degrees C |
| Storage Temp Rating | -55 degrees C to +100 degrees C |
Individual Part Number: RK35300
| Dim. A | 0.350" (8.89mm) |
| Dim. B | 0.280" (7.11mm) |
| Dim. C | 0.018" (0.46mm) |
| Dim. X (dome cavity) | 0.37" (9.40mm) |
| Dim. Y | 0.30" (7.62mm) |
| Fmax/Force | 300g +/- 30g, typical |
| Life Cycles | up to 5,000,000 |
| Dimple | No |
| Contact Configuration | SPST N.O. |
| Switching Voltage | 0.1 to 50 VDC |
| Switching Capacity | 1 Watt |
| Switching Current | 0.05 to 100 mA DC |
| Contact Bounce | <0.3ms make <0.6ms break |
| Base Material | SSTL |
| Plating | Nickel/Silver/Gold optional |
| Operating Temp Rating | -45 degrees C to +100 degrees C |
| Storage Temp Rating | -55 degrees C to +100 degrees C |
Individual Part Number: RK50040
| Dim. A | 0.500" (12.7mm) |
| Dim. B | 0.400" (10.16mm) |
| Dim. C | 0.014" (0.36mm) |
| Dim. X (dome cavity) | 0.52" (13.21mm) |
| Dim. Y | 0.42" (10.67mm) |
| Fmax/Force | 40g +/- 30g, typical |
| Life Cycles | up to 5,000,000 |
| Dimple | No |
| Contact Configuration | SPST N.O. |
| Switching Voltage | 0.1 to 50 VDC |
| Switching Capacity | 1 Watt |
| Switching Current | 0.05 to 100 mA DC |
| Contact Bounce | <0.3ms make <0.6ms break |
| Base Material | SSTL |
| Plating | Nickel/Silver/Gold optional |
| Operating Temp Rating | -45 degrees C to +100 degrees C |
| Storage Temp Rating | -55 degrees C to +100 degrees C |
Individual Part Number: RK50170
| Dim. A | 0.500" (12.7mm) |
| Dim. B | 0.400" (10.16mm) |
| Dim. C | 0.016" (0.41mm) |
| Dim. X (dome cavity) | 0.52" (13.21mm) |
| Dim. Y | 0.42" (10.67mm) |
| Fmax/Force | 170g +/- 30g, typical |
| Life Cycles | up to 5,000,000 |
| Dimple | No |
| Contact Configuration | SPST N.O. |
| Switching Voltage | 0.1 to 50 VDC |
| Switching Capacity | 1 Watt |
| Switching Current | 0.05 to 100 mA DC |
| Contact Bounce | <0.3ms make <0.6ms break |
| Base Material | SSTL |
| Plating | Nickel/Silver/Gold optional |
| Operating Temp Rating | -45 degrees C to +100 degrees C |
| Storage Temp Rating | -55 degrees C to +100 degrees C |
Individual Part Number: RK50220
| Dim. A | 0.500" (12.7mm) |
| Dim. B | 0.400" (10.16mm) |
| Dim. C | 0.019" (0.48mm) |
| Dim. X (dome cavity) | 0.52" (13.21mm) |
| Dim. Y | 0.42" (10.67mm) |
| Fmax/Force | 220g +/- 30g, typical |
| Life Cycles | up to 5,000,000 |
| Dimple | No |
| Contact Configuration | SPST N.O. |
| Switching Voltage | 0.1 to 50 VDC |
| Switching Capacity | 1 Watt |
| Switching Current | 0.05 to 100 mA DC |
| Contact Bounce | <0.3ms make <0.6ms break |
| Base Material | SSTL |
| Plating | Nickel/Silver/Gold optional |
| Operating Temp Rating | -45 degrees C to +100 degrees C |
| Storage Temp Rating | -55 degrees C to +100 degrees C |
Individual Part Number: RK50300
| Dim. A | 0.500" (12.7mm) |
| Dim. B | 0.400" (10.16mm) |
| Dim. C | 0.023" (0.58mm) |
| Dim. X (dome cavity) | 0.52" (13.21mm) |
| Dim. Y | 0.42" (10.67mm) |
| Fmax/Force | 300g +/- 30g, typical |
| Life Cycles | up to 5,000,000 |
| Dimple | No |
| Contact Configuration | SPST N.O. |
| Switching Voltage | 0.1 to 50 VDC |
| Switching Capacity | 1 Watt |
| Switching Current | 0.05 to 100 mA DC |
| Contact Bounce | <0.3ms make <0.6ms break |
| Base Material | SSTL |
| Plating | Nickel/Silver/Gold optional |
| Operating Temp Rating | -45 degrees C to +100 degrees C |
| Storage Temp Rating | -55 degrees C to +100 degrees C |
Individual Part Number: RK50450
| Dim. A | 0.500" (12.7mm) |
| Dim. B | 0.400" (10.16mm) |
| Dim. C | 0.024" (0.61mm) |
| Dim. X (dome cavity) | 0.52" (13.21mm) |
| Dim. Y | 0.42" (10.67mm) |
| Fmax/Force | 450g +/- 10% of trip force, typical |
| Life Cycles | up to 5,000,000 |
| Dimple | No |
| Contact Configuration | SPST N.O. |
| Switching Voltage | 0.1 to 50 VDC |
| Switching Capacity | 1 Watt |
| Switching Current | 0.05 to 100 mA DC |
| Contact Bounce | <0.3ms make <0.6ms break |
| Base Material | SSTL |
| Plating | Nickel/Silver/Gold optional |
| Operating Temp Rating | -45 degrees C to +100 degrees C |
| Storage Temp Rating | -55 degrees C to +100 degrees C |
PCB Pads: RK-Series
RK-Series dome contacts can be used with double sided PCB pad layouts. Click on the following link for PCB pad specifications.
Double-Sided Oblong PCB contact pad
PCB Pads: E-Series
E-Series (ONN), and RK-Series dome contacts
E-Series (ONN) dome contacts can be used with double sided oblong PCB pad layouts. Click on the following link for PCB pad specifications.
Double Sided Oblong PCB Pad – 1” and Smaller
Double Sided Oblong PCB Pad – 2”
E-Series (RDF) dome contacts
E-Series (RDF) dome contacts can be used with double sided PCB pad layouts. Click on the following link for PCB pad specifications.
Double Sided PCB contact pad
E-Series (TDF) dome contacts
E-Series (TDF) dome contacts are typically used with double sided PCB pad layouts, however, single sided PCB pads have been used as well. Contact Snaptron for assistance in designing single sided pads using the WT-Series metal domes. Click on the following links for PCB pad specifications.
Double Sided PCB contact pad
Single Sided PCB contact pad
PCB Pads: E-Series
E-Series (ONN), and RK-Series dome contacts
E-Series (ONN) dome contacts can be used with double sided oblong PCB pad layouts. Click on the following link for PCB pad specifications.
Double Sided Oblong PCB Pad – 1” and Smaller
Double Sided Oblong PCB Pad – 2”
E-Series (RDF) dome contacts
E-Series (RDF) dome contacts can be used with double sided PCB pad layouts. Click on the following link for PCB pad specifications.
Double Sided PCB contact pad
E-Series (TDF) dome contacts
E-Series (TDF) dome contacts are typically used with double sided PCB pad layouts, however, single sided PCB pads have been used as well. Contact Snaptron for assistance in designing single sided pads using the WT-Series metal domes. Click on the following links for PCB pad specifications.
Double Sided PCB contact pad
Single Sided PCB contact pad
PCB Pads: E-Series
E-Series (ONN), and RK-Series dome contacts
E-Series (ONN) dome contacts can be used with double sided oblong PCB pad layouts. Click on the following link for PCB pad specifications.
Double Sided Oblong PCB Pad – 1” and Smaller
Double Sided Oblong PCB Pad – 2”
E-Series (RDF) dome contacts
E-Series (RDF) dome contacts can be used with double sided PCB pad layouts. Click on the following link for PCB pad specifications.
Double Sided PCB contact pad
E-Series (TDF) dome contacts
E-Series (TDF) dome contacts are typically used with double sided PCB pad layouts, however, single sided PCB pads have been used as well. Contact Snaptron for assistance in designing single sided pads using the WT-Series metal domes. Click on the following links for PCB pad specifications.
Double Sided PCB contact pad
Single Sided PCB contact pad
PCB Pads: E-Series
E-Series (ONN), and RK-Series dome contacts
E-Series (ONN) dome contacts can be used with double sided oblong PCB pad layouts. Click on the following link for PCB pad specifications.
Double Sided Oblong PCB Pad – 1” and Smaller
Double Sided Oblong PCB Pad – 2”
E-Series (RDF) dome contacts
E-Series (RDF) dome contacts can be used with double sided PCB pad layouts. Click on the following link for PCB pad specifications.
Double Sided PCB contact pad
E-Series (TDF) dome contacts
E-Series (TDF) dome contacts are typically used with double sided PCB pad layouts, however, single sided PCB pads have been used as well. Contact Snaptron for assistance in designing single sided pads using the WT-Series metal domes. Click on the following links for PCB pad specifications.
Double Sided PCB contact pad
Single Sided PCB contact pad
PCB Pads: E-Series
E-Series (ONN), and RK-Series dome contacts
E-Series (ONN) dome contacts can be used with double sided oblong PCB pad layouts. Click on the following link for PCB pad specifications.
Double Sided Oblong PCB Pad – 1” and Smaller
Double Sided Oblong PCB Pad – 2”
E-Series (RDF) dome contacts
E-Series (RDF) dome contacts can be used with double sided PCB pad layouts. Click on the following link for PCB pad specifications.
Double Sided PCB contact pad
E-Series (TDF) dome contacts
E-Series (TDF) dome contacts are typically used with double sided PCB pad layouts, however, single sided PCB pads have been used as well. Contact Snaptron for assistance in designing single sided pads using the WT-Series metal domes. Click on the following links for PCB pad specifications.
Double Sided PCB contact pad
Single Sided PCB contact pad
PCB Pads: E-Series
E-Series (ONN), and RK-Series dome contacts
E-Series (ONN) dome contacts can be used with double sided oblong PCB pad layouts. Click on the following link for PCB pad specifications.
Double Sided Oblong PCB Pad – 1” and Smaller
Double Sided Oblong PCB Pad – 2”
E-Series (RDF) dome contacts
E-Series (RDF) dome contacts can be used with double sided PCB pad layouts. Click on the following link for PCB pad specifications.
Double Sided PCB contact pad
E-Series (TDF) dome contacts
E-Series (TDF) dome contacts are typically used with double sided PCB pad layouts, however, single sided PCB pads have been used as well. Contact Snaptron for assistance in designing single sided pads using the WT-Series metal domes. Click on the following links for PCB pad specifications.
Double Sided PCB contact pad
Single Sided PCB contact pad
PCB Pads: E-Series
E-Series (ONN), and RK-Series dome contacts
E-Series (ONN) dome contacts can be used with double sided oblong PCB pad layouts. Click on the following link for PCB pad specifications.
Double Sided Oblong PCB Pad – 1” and Smaller
Double Sided Oblong PCB Pad – 2”
E-Series (RDF) dome contacts
E-Series (RDF) dome contacts can be used with double sided PCB pad layouts. Click on the following link for PCB pad specifications.
Double Sided PCB contact pad
E-Series (TDF) dome contacts
E-Series (TDF) dome contacts are typically used with double sided PCB pad layouts, however, single sided PCB pads have been used as well. Contact Snaptron for assistance in designing single sided pads using the WT-Series metal domes. Click on the following links for PCB pad specifications.
Double Sided PCB contact pad
Single Sided PCB contact pad
PCB Pads: E-Series
E-Series (ONN), and RK-Series dome contacts
E-Series (ONN) dome contacts can be used with double sided oblong PCB pad layouts. Click on the following link for PCB pad specifications.
Double Sided Oblong PCB Pad – 1” and Smaller
Double Sided Oblong PCB Pad – 2”
E-Series (RDF) dome contacts
E-Series (RDF) dome contacts can be used with double sided PCB pad layouts. Click on the following link for PCB pad specifications.
Double Sided PCB contact pad
E-Series (TDF) dome contacts
E-Series (TDF) dome contacts are typically used with double sided PCB pad layouts, however, single sided PCB pads have been used as well. Contact Snaptron for assistance in designing single sided pads using the WT-Series metal domes. Click on the following links for PCB pad specifications.
Double Sided PCB contact pad
Single Sided PCB contact pad
PCB Pads: E-Series
E-Series (ONN), and RK-Series dome contacts
E-Series (ONN) dome contacts can be used with double sided oblong PCB pad layouts. Click on the following link for PCB pad specifications.
Double Sided Oblong PCB Pad – 1” and Smaller
Double Sided Oblong PCB Pad – 2”
E-Series (RDF) dome contacts
E-Series (RDF) dome contacts can be used with double sided PCB pad layouts. Click on the following link for PCB pad specifications.
Double Sided PCB contact pad
E-Series (TDF) dome contacts
E-Series (TDF) dome contacts are typically used with double sided PCB pad layouts, however, single sided PCB pads have been used as well. Contact Snaptron for assistance in designing single sided pads using the WT-Series metal domes. Click on the following links for PCB pad specifications.
Double Sided PCB contact pad
Single Sided PCB contact pad
Sample Request
You have requested samples for the following domes: