Reed Switch RI-80 SMD


	RI-80 SMD Series Dry Reed Switch

	RI-80 SMD Series Ultra-micro dry-reed switch hermetically sealed in a gas-filled glass envelope. Single-pole, single-throw (SPST) type, having normally open contacts, and containing two magnetically actuated reeds. The switch is of the double-ended type and may be actuated by an electromagnet, a permanent magnet or a combination of both.

	RI-80 SMD Series Features u Ideal for proximity sensors, telecom & medical applications u Contact layers: gold, sputtered ruthenium u Superior glass-to-metal seal and blade alignment


	Dimensions in Inches (Millimeters)


	RI-80 SMD G1 Model


	RI-80 SMD G2 Model


	RI-80 SMD J-Lead Model

Model Number			RI-80 SMD
Parameters	Test Conditions	Units

Operating Characteristics
Operate Range**		AT	5-15**
Release Range**		AT	2-13**
Operate Time - including bounce (typ.)		ms	0.35 (20 AT)
Bounce Time (typ.)		ms	0.1 (20 AT)
Release Time (max)		µ s	20 (20 AT)
Resonant Frequency (typ.)		Hz	21.300

Electrical Characteristics
Switched Power (max)		W	5
Switched Voltage DC (max)		V	175*
Switched Voltage AC, RMS value (max)		V	140
Switched Current DC (max)		mA	350
Switched Current AC, RMS value (max)		mA	250
Carry Current DC; AC, RMS value (max)		A	0.5
Breakdown Voltage (min)		V	230
Contact Resistance (initial max)	(energization)	m W	160 (20 AT)
Contact Resistance (initial typ.)	(energization)	m W	140 (20 AT)
Contact Capacitance (max)	without test coil	pF	0.45
Insulation Resistance (min)	RH £ 45%	M W	10⁶


	* 200V for switches with AT on value > 10AT ** AT values of switches before SMD forming in PSC coil

	General data for all models RI-80 SMD AT-Customization The RI-80 SMD can be supplied in operate ranges to customer specification.

	Coils All characteristics are based on unmodified switches The switches are defined using the Philips Standard Coil. For more information, see Reed Technical & Application Information Section of this catalog.

	Life expectancy and reliability The life expectancy data given below are valid for a coil energized at 1.25 times the published maximum operate value for each type in the RI-80 series.

	No-load conditions (operating frequency: 100 Hz) Life expectancy: min. 10⁸ operations with a failure rate of less than 2 x 10^-9 with a confidence level of 90%. End of life criteria: Contact resistance >1W after 2 ms Release time > 2 ms (latching or contact sticking)

	Loaded conditions (resistive load: 5V; 100 mA; operating frequency: 170 Hz) Life expectancy: min. 10⁷ operations with a failure rate of less than 10^-8 with a confidence level of 90%. End of life criteria: Contact resistance >1W after 4 ms Release time > .7 ms (latching or contact sticking) Switching different loads involves different life expectancy and reliability data. Further information available upon request.

	Mechanical Data Contact arrangement is normally open; lead finish is tinned; and can be mounted in any position.

	Shock The switches are tested in accordance with "IEC 68-2-27", test Ea (peak acceleration 150 G, half sinewave; duration 11 ms). Such a shock will not cause an open switch (no magnetic field present) to close, nor a switch kept closed by an 80 AT coil to open.

	Vibration The switches are tested in accordance with "IEC 68-2-6", test Fc (acceleration 10 G; below cross-over frequency 57 to 62 Hz; amplitude 0.75 mm; frequency range 10 to 2000 Hz, duration 90 minutes). Such a vibration will not cause an open switch (no magnetic field present) to close, nor a switch kept closed by an 80 AT coil to open.

	Mechanical Strength The robustness of the terminations is tested in accordance with "IEC 68-2-21", test Ua1 (load 10 N).

	Operating and Storage Temperature Operating ambient temperature; min: -55°C; max: +125°C. Storage temperature; min: -55°C; max: +125°C. Note: Temperature excursions up to 150°C may be permissible. For more information contact your nearest Coto Technology sales office.

	Soldering The switch can withstand soldering heat in accordance with "IEC 68-2-20", test Tb, method 1B: solder bath at 350 ±10°C for 3.5 ±0.5 s. Solderability is tested in accordance with "IEC 68-2-20", test Ta, method 3: solder globule temperature 235°C; ageing 1b: 4 hours steam.

	Welding The leads can be welded.

	Ordering Information



	** Customer specific AT ranges and modifications are also possible. Please contact your local sales representative.

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