Datasheet > RI-21B

RI-21B

更新时间： 2024-11-16 04:08:23

品牌	Logo	应用领域
COTO		开关
页数	文件大小	规格书
2页	248K
描述
Dry Reed Switch

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RI-21B 数据手册

RI-21 Series Dry Reed Switch

RI-21 Series

Micro dry-reed switch hermetically sealed in a gas-filled 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 sensors, relays, pulse counters or

similar devices.

RI-21 Series Features

ꢀ

General purpose reed switch

High breakdown voltage

Contact layers: gold, plated ruthenium

Superior glass-to-metal seal and blade alignment

Excellent life expectancy and reliability

Dimensions in inches (mm)

General data for all models RI-21

AT-Customization / Preformed Leads

End of life criteria:

Besides the standard models, customized products can

also be supplied offering the following options:

! Operate and release ranges to customer

specification

Contact resistance > 1Ω after 2 ms

Release time > 2 ms (latching or contact sticking).

Loaded conditions (resistive load: 12 V; 4 mA;

(15 mA peak); operating frequency: 170 Hz)

Life expectancy: min. 10⁷operations with a failure rate

of less than 10^-8with a confidence level of 90%.

! 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.

End of life criteria:

Contact resistance > 2Ω after 4 ms

Release time > 0.7 ms (latching or contact

sticking). Switching different loads involves

different life expectancy and reliability data. Further

information is available on request.

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-21 series.

Mechanical Data

Contact arrangement is normally open; lead finish is

tinned; net mass is approximately 190 mg; and can be

mounted in any position.

No load conditions (operating frequency: 100Hz)

Life expectancy : min. 10⁸operations with a failure

rate of less than 10^-9with a confidence level of 90%.

COTO TECHNOLOGY (USA) Tel: (401) 943-2686 / Fax (401) 942-0920

(Europe) Tel: +31-45-5439343 / Fax +31-45-5427216

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