MDSM-DTB 20-25AT【PDF 1/2 页】SWITCH REED SPDT 20-25AT

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Sheet目录694

[1页]2页

www.hamlin.com

File E47258

MDSM-DT REED SWITCH

Features

Surface mounting changeover switch

Miniature size with 14.73mm x 2.54mm

(0.580” x 0.100”) glass envelope

Capable of switching 175Vdc or 0.25A

at up to 5W

10 9 Ohms insulation resistance

Available sensitivity 15-30 AT

Bulk or tape and reel packaging. See sheet 2

Benefits

Hermetically sealed switch contacts

are not affected by and have no effect

on their external environment

Low, stable contact resistance

Very small space requirements

Zero operating power required for

contact closure

Fit and forget durability

Applications

Position sensing

Level sensing

Telecoms

Office Equipment

Mobile Phones

SWITCH DIMENSIONS (in) mm

(.100±.015)

2,54±0.38

N.O.LEAD

(.022)

?0,56

(.580)MAX

14,73

(.100)MAX

?2,54

COMMON

LEAD

RECOMMENDED LAND PATTERN

(.760)

(.138)TYP

(.022)

?0,56

N.C.LEAD

(.420±.020)

10,67±0.51

C OF OVERLAP

(.020)

?0,51

19,30

3,50

(.063)TYP

(.800±.010)

(.001)MIN

0,025

(.113)MAX

(.037)

0,94

(.020)

0,51

1,60

SWITCH TYPE

ELECTRICAL RATINGS

20,32±0.25

(1.000±.010)

25,40±0.25

2,87

MDSM-DT

Contact Form C - Changeover

Contact Rating (1)

Power

Watts - max

Voltage

Current

Resistance

Capacitance

Temperature

Switching

Breakdown

Switching

Carry

Contact, Initial

Insulation

Contact

Operating

Storage (2)

Vdc - max.

File E61760(N) ?

Vdc - min.

A - max.

Ohms - max.

Ohms - min.

pF - typ.

°C

175

200

0.25

1.5

0.1

10 9

1.0

-40 to +125

-65 to +125

OPERATING CHARACTERISTICS

Time

Shock

Vibration

Resonant Frequency

Operate (3)

Release (3)

11ms ? sine

50-2000 Hz.

ms - max.

G - max.

kHz -typ.

0.7

1.0

MAGNETIC CHARACTERISTICS

Pull-In Ranges Available

Rating Sensitivity (4)

Test Coil

Switch AT before modification

Ampere Turns (AT)

15-30, 15-20, 20-25 and 25-30

L4989

Notes:-

1) Contact Rating. Product of the switching voltage and current must never exceed the wattage rating. Contact Hamlin for additional load/life information.

2) Storage Temperature. Long term exposure at elevated temperature may degrade solderability of the leads.

3) Operate (including bounce) /Release Time. Tested per EIA/NARM RS421A with diode suppressed coil.

4) Rating Sensitivity. The value at which the contact ratings and operating characteristics are determined. De-rating may be required below this value.

Tel: +44 (0) 1379 649700 Fax: +44 (0) 1379 649702 Email: sales.uk@hamlin.com Product performance assist purchasers by providing information specific to a particular application.

Tel: +49 (0) 6181 953660 Fax: +49 (0) 6181 9536666 Email: sales.de@hamlin.com Hamlin disclaims data sheet without further consultation with Hamlin’s authorised representatives.

Tel: +33 (0) 1 4687 Fax: +33 (0) 1 4686 6798 Email: sales.fr@hamlin.com

Hamlin USA

Hamlin UK

Hamlin Germany

Hamectrol France

Tel: +1 920 648 3000 Fax: +1 920 648 3001 Email: sales.us@hamlin.com DETAILS ON THIS DATA SHEET ARE PROVIDED FOR INFORMATION PURPOSES ONLY &

SHOULD NOT BE RELIED UPON AS BEING ACCURATE FOR ANY PARTICULAR PURPOSE

may be affected by the application that the part is used for.

Upon request Hamlin will

all liability whatsoever for any purchaser’s reliance upon the information

contained in this

Sheet 1 of 2 Sheets

Issue:2 19/11/04 DCR:B2737

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