Round E-Series dome options ǀ Snaptron

E-SERIES Round

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To compliment our diverse variety of domes, Snaptron offers E-Series domes with various features. Our E-Series domes come in three different shapes – triangular, round, and oblong. E-Series domes are an inexpensive alternative for projects with relaxed tolerance requirements and cost constraints. Contact Snaptron to see if E-Series domes may be right for your application.

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

PCB Pads

DOUBLE-SIDED PCB

Part Numbers

Part Number	Diameter	Height	Trip Force	Dimple	Life Cycles	Specs	Request Samples
E10-RDF-230	10mm (0.394")	0.51mm (0.020")	230g	Yes	up to 3,000,000	Specs	Add to List
E10-RDF-280	10mm (0.394")	0.53mm (0.021")	280g	Yes	up to 3,000,000	Specs	Add to List
E10-RDF-340	10mm (0.394")	0.56mm (0.022")	340g	Yes	up to 3,000,000	Specs	Add to List
E10-RDF-400	10mm (0.394")	0.58mm (0.023")	400g	Yes	up to 3,000,000	Specs	Add to List
E12-RDF-340	12mm (0.472")	0.64mm (0.025")	340g	Yes	up to 3,000,000	Specs	Add to List
E12.7-RDF-400	12.7mm (0.500")	0.66mm (0.026")	400g	Yes	up to 3,000,000	Specs	Add to List
E12.7-RDFT-280	12.7mm (0.500")	0.66mm (0.026")	280g	Yes	up to 3,000,000	Specs	Add to List
E12.7-RDFT-400	12.7mm (0.500")	0.66mm (0.026")	400g	Yes	up to 3,000,000	Specs	Add to List
E9-RDF-400	9mm (0.354")	0.53mm (0.021")	400g	Yes	up to 3,000,000	Specs	Add to List

Individual Part Number: E10-RDF-230

Dim. A	10mm (0.394")
Dim. C	0.51mm (0.020")
Dim. X (dome cavity)	10.5mm (0.413")
Fmax/Force	230g +/- 30g, typical
Life Cycles	up to 3,000,000
Dimple	Yes
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: E10-RDF-280

Dim. A	10mm (0.394")
Dim. C	0.53mm (0.021")
Dim. X (dome cavity)	10.5mm (0.413")
Fmax/Force	280g +/- 30g, typical
Life Cycles	up to 3,000,000
Dimple	Yes
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: E10-RDF-340

Dim. A	10mm (0.394")
Dim. C	0.56mm (0.022")
Dim. X (dome cavity)	10.5mm (0.413")
Fmax/Force	340g +/- 30g, typical
Life Cycles	up to 3,000,000
Dimple	Yes
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: E10-RDF-400

Dim. A	10mm (0.394")
Dim. C	0.58mm (0.023")
Dim. X (dome cavity)	10.5mm (0.413")
Fmax/Force	400g +/- 10% of trip force, typical
Life Cycles	up to 3,000,000
Dimple	Yes
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: E12-RDF-340

Dim. A	12mm (0.472")
Dim. C	0.64mm (0.025")
Dim. X (dome cavity)	12.5mm (0.492")
Fmax/Force	340g +/- 30g, typical
Life Cycles	up to 3,000,000
Dimple	Yes
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: E12.7-RDF-400

Dim. A	12.7mm (0.500")
Dim. C	0.66mm (0.026")
Dim. X (dome cavity)	13.2mm (0.520")
Fmax/Force	400g +/- 10% of trip force, typical
Life Cycles	up to 3,000,000
Dimple	Yes
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

Print Request Sample Close

Individual Part Number: E12.7-RDFT-280

Dim. A	12.7mm (0.500")
Dim. C	0.66mm (0.026")
Dim. X (dome cavity)	13.2mm (0.520")
Fmax/Force	280g +/- 30g, typical
Life Cycles	up to 3,000,000
Dimple	Yes
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

Print Request Sample Close

Individual Part Number: E12.7-RDFT-400

Dim. A	12.7mm (0.500")
Dim. C	0.66mm (0.026")
Dim. X (dome cavity)	13.2mm (0.520")
Fmax/Force	400g +/- 10% of trip force, typical
Life Cycles	up to 3,000,000
Dimple	Yes
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

Print Request Sample Close

Individual Part Number: E9-RDF-400

Dim. A	9mm (0.354")
Dim. C	0.53mm (0.021")
Dim. X (dome cavity)	9.5mm (0.374")
Fmax/Force	400g +/- 10% of trip force, typical
Life Cycles	up to 3,000,000
Dimple	Yes
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

Print Request Sample Close

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