RI-25B

RI-25B Datasheet


RI-25 Series Dry Reed Switch

Part Datasheet
RI-25B RI-25B RI-25B (pdf)
Related Parts Information
RI-25C RI-25C RI-25C
RI-25A RI-25A RI-25A
RI-25AAA RI-25AAA RI-25AAA
RI-25AA RI-25AA RI-25AA
PDF Datasheet Preview
RI-25 Series Dry Reed Switch

RI-25 Series 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.

The device is intended for use in high load applications in relays or switching devices.

RI-25 Series Features Can handle up to 25 W load Contact layers gold, sputtered ruthenium Superior glass-to-metal seal and blade alignment Excellent life expectancy and reliability

Dimensions in inches mm

General data for all models RI-25

Release time > 2ms latching or contact sticking .

AT-Customization / Preformed Leads Besides the standard models, customized products can also be supplied offering the following options ! Operate and release ranges to customer
specification ! Cropped and/or preformed leads

Coils All characteristics are measured using the Philips Standard Coil. For definitions of the Philips Standard Coil, refer to “Application Notes” in the Reed Switch Technical & Application Information Section of this catalog.

Life expectancy and reliability The life expectancy data given below are valid for a coil energized at times the published maximum operate value for each type in the RI-25 series.

No-load conditions operating frequency 100 Hz Life expectancy min. 3x108 operations with a failure rate of less than 0.9x10-9 with a confidence level of End of life criteria:

Contact resistance > after 2 ms

Loaded conditions resistive load 20 V 500 mA operating frequency 125 Hz

RI-25AAA Life expectancy min. 106 operations with a failure rate of less than 2.5x10-7 with a confidence level of End of life criteria:

Contact resistance > after ms Release time > ms latching or contact sticking .

RI-25AA RI-25A RI-25B RI-25C Life expectancy min. 5x107 operations with a failure rate of less than 5x10-9 with a confidence level of End of life criteria:

Contact resistance > after ms Release time > ms latching or contact sticking .

Loaded conditions resistive load 50 V 100mA operating frequency 50 Hz Life expectancy min. 106 operations with a failure rate of less than 2x10-7 with a confidence level of End of life criteria:

Contact resistance > after 5 ms Release time > 2 ms latching or contact sticking . Switching different loads involves different life expect-
112 COTO TECHNOLOGY USA Tel 401 943-2686 / Fax 401 942-0920 6 Europe Tel +31-45-5439343 / Fax +31-45-5427216

RI-25 Series Dry Reed Switch
ancy and reliability data. Further information is available on request.

Mechanical Data Contact arrangement is normally open lead finish is tinned net mass is approximately 190 mg and can be mounted in any position.

Shock The switches are tested in accordance with “IEC 68-227”, 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.

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 s. Solderability is tested in accordance with “IEC 68-2-20”, test Ta, method 3 solder globule temperature 235°C ageing Ib 4 hours steam.

Vibration The switches are tested in accordance with “IEC 68-26”, test Fc acceleration 10 G below cross-over frequency 57 to 62 Hz amplitude 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

Welding The leads can be welded

Mounting The leads should not be bent closer than 1 mm to the glass-to-metal seals. Stress on the seals should be avoided. Care must be taken to prevent stray magnetic fields from influencing the operating and measuring conditions.

The robustness of the terminations is tested in accordance with “IEC 68-2-21”, test Ua1 load 40 N .

For Most Recent Data, Consult the Coto Technology Website 6 E-mail:
More datasheets: AT45DB321B-CC | AT45DB321B-RI | AT45DB321B-RC | FDW254PZ | CS3001-ISZ | CS3001-ISZR | RI-25C | RI-25A | RI-25AAA | RI-25AA


Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived RI-25B Datasheet file may be downloaded here without warranties.

Datasheet ID: RI-25B 506923