E-Series Oblong Metal Domes by Snaptron

E-SERIES Oblong

Home > Products > Standard Domes > E-SERIES > E-SERIES Oblong

To complement our diverse variety of domes, Snaptron offers E-Series domes with various features. Our Oblong E-Series domes have a unique “bar shape” that is ideal for a variety of applications. In 2015, Snaptron created two larger oblong domes – the E.5-ONN2-400 and the E.5-ODN2-400 – which measure 2″ by 0.5″. These domes may be ideal for a variety of applications, including those where a full hand “squeeze” is preferable to a finger-tip activation.

Contact Snaptron for pricing, to order, or to request samples of E-Series domes.

PCB Pads

DOUBLE-SIDED OBLONG PCB

Part Numbers

Part Number	Diameter	Height	Trip Force	Dimple	Life Cycles	Specs	Request Samples
E.22-ONN-230	11.18mm (0.440")	0.58mm (0.023")	230g	No	up to 3,000,000	Specs	Add to List
E.35-ONN-280	17.78mm (0.700")	0.86mm (0.034")	280g	No	up to 3,000,000	Specs	Add to List
E.35-ONN-340	17.78mm (0.700")	0.86mm (0.034")	340g	No	up to 3,000,000	Specs	Add to List
E.35-ONN-450	17.78mm (0.700")	0.89mm (0.035")	450g	No	up to 3,000,000	Specs	Add to List
E.5-ODN2-400	2.00" (50.80mm)	0.057" (1.45mm)	400g	Yes	up to 3,000,000	Specs	Add to List
E.5-ONN1-280	25.40mm (1.00")	0.97mm (0.038")	280g	No	up to 3,000,000	Specs	Add to List
E.5-ONN1-340	25.40mm (1.00")	1.02mm (0.040")	340g	No	up to 3,000,000	Specs	Add to List
E.5-ONN1-450	25.40mm (1.00")	1.04mm (0.041")	450g	No	up to 3,000,000	Specs	Add to List
E.5-ONN2-400	50.80mm (2.00")	1.52mm (0.060")	400g	No	up to 3,000,000	Specs	Add to List

Individual Part Number: E.22-ONN-230

Dim. A	11.18mm (0.440")
Dim. B	5.59mm (0.220")
Dim. C	0.58mm (0.023")
Dim. X (dome cavity)	11.68mm (0.46")
Dim. Y	6.10mm (0.24")
Fmax/Force	230g +/- 30g, typical
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

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Individual Part Number: E.35-ONN-280

Dim. A	17.78mm (0.700")
Dim. B	8.89mm (0.350")
Dim. C	0.86mm (0.034")
Dim. X (dome cavity)	18.29mm (0.72")
Dim. Y	9.40mm (0.37")
Fmax/Force	280g +/- 30g, typical
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

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Individual Part Number: E.35-ONN-340

Dim. A	17.78mm (0.700")
Dim. B	8.89mm (0.350")
Dim. C	0.86mm (0.034")
Dim. X (dome cavity)	18.29mm (0.72")
Dim. Y	9.40mm (0.37")
Fmax/Force	340g +/- 30g, typical
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

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Individual Part Number: E.35-ONN-450

Dim. A	17.78mm (0.700")
Dim. B	8.89mm (0.350")
Dim. C	0.89mm (0.035")
Dim. X (dome cavity)	18.29mm (0.72")
Dim. Y	9.40mm (0.37")
Fmax/Force	450g +/- 10% of trip force, typical
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

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Individual Part Number: E.5-ODN2-400

Dim. A	2.00" (50.80mm)
Dim. B	0.527" (13.39mm)
Dim. C	0.057" (1.45mm)
Dim. D	0.740" (18.80mm)
Dim. X (dome cavity)	2.05" (52.03mm)
Dim. Y	0.575" (14.59mm)
Fmax/Force	400g +/- 10% of trip force, typical
Contact Configuration	S.P.S.T
Switching Voltage	.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	None
Operating Temp Rating	-45 Degrees C to +100 Degrees C
Storage Temp Rating	-55 Degrees C to +100 Degrees C

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Individual Part Number: E.5-ONN1-280

Dim. A	25.40mm (1.00")
Dim. B	12.70mm (0.500")
Dim. C	0.97mm (0.038")
Dim. X (dome cavity)	25.91mm (1.02")
Dim. Y	13.21mm (0.52")
Fmax/Force	280g +/- 30g, typical
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

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Individual Part Number: E.5-ONN1-340

Dim. A	25.40mm (1.00")
Dim. B	12.7mm (0.500")
Dim. C	1.02mm (0.040")
Dim. X (dome cavity)	25.91mm (1.02")
Dim. Y	13.21mm (0.52")
Fmax/Force	340g +/- 30g, typical
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

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Individual Part Number: E.5-ONN1-450

Dim. A	25.40mm (1.00")
Dim. B	12.70mm (0.500")
Dim. C	1.04mm (0.041")
Dim. X (dome cavity)	25.91mm (1.02")
Dim. Y	13.21mm (0.52")
Fmax/Force	450g +/- 10% of trip force, typical
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

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Individual Part Number: E.5-ONN2-400

Dim. A	50.80mm (2.00")
Dim. B	13.34mm (0.525")
Dim. C	1.52mm (0.060")
Dim. X (dome cavity)	52.03mm (2.05")
Dim. Y	14.59mm (0.575")
Fmax/Force	400g +/- 10% of trip force, typical
Contact Configuration	S.P.S.T
Switching Voltage	.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	None
Operating Temp Rating	-45 Degrees C to +100 Degrees C
Storage Temp Rating	-55 Degrees C to +100 Degrees C

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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