Datasheet > MASM-14R-25-30

MASM-14R-25-30

更新时间： 2024-11-25 14:56:27

品牌	Logo	应用领域
力特 - LITTELFUSE		/
页数	文件大小	规格书
3页	432K
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MASM-14R-25-30 数据手册

Surface Mount Reed Switches

Low Power > MASM-14

MASM-14 14mm Close-Differential Reed Switch

RoꢀS

Description

The MASM-14 surface mount reed switch is a close-differential, sub-miniature,

normally open switch with a 14mm long x 2.28mm diameter (0.551” x 0.090”)

glass envelope, capable of switching 200Vdc at 10W.

This reed switch is a surface mount version of MACD-14. It has high insulation

resistance of 10¹⁰ohms minimum and a contact resistance of less than 100

milliohms. Both reed switches are intended for use in applications that require

low hysteresis between Pull-In and Drop-Out values.

Features

• Surface mount normally open

switch

• Low close/open hysteresis (close

differential)

Agency Approvals

• Capable of switching 200Vdc or

0.5A at up to 10W

Agency

Agency File Number

Ampere-Turns Range

E47258

E471070

10-30 AT

Benefits

• Zero operating power required for

contact closure

• Excellent for switching micro-

controller logic level loads

• Hermetically sealed switch

contacts are not affected by and

have no effect on their external

environment

Note: Contact Littelfuse for specific agency approval ratings.

Dimensions

Dimensions in mm (inch)

Applications

• Position Sensing

• Level Sensing

• Security

Ø2.28 MAX

2x1.14 0.10

(.090)

(.045 .004)

• Industrial Controls

• Office Equipment

• Home Appliances

17.52 0.25

(.690 .010)

RECOMMENDED LAND PATTERN

14.00 MAX

(.551)

2x3.05 (.120)

2x1.65 (.065)

Switch Type

2.84 MAX

(.112)

14.60

(.575)

19.30 0.25

(.760 .010)

2x0.00 MIN

(.000)

Contact Form

A (SPST-NO)

Note: Land pattern is Littelfuse recommendation only. User is responsible for proper PCB design.

Body: Glass

Leads: Tin-plated Ni-Fe wire

Materials

Note: SPST-NO = Single-pole, single-throw, normally open

Electrical Ratings

Contact Rating ¹

W/VA - max.

Switching ²

Vdc - max.

Vac - max.

Vdc - min.

200

140

200

Voltage ³

Breakdown ⁴

Switching ²

Adc - max.

Aac - max.

Adc - max.

0.50

0.35

1.00

Current ³

Carry

Contact, Initial

Insulation

Ω - max.

Ω - min.

0.100

10¹⁰

Resistance

Capacitance

Temperature

Contact

pF - typ.

0.3

Operating

Storage ⁵

°C

-40 to +125

-65 to +125

Notes:

1. Contact rating - Product of the switching voltage and current should never exceed the wattage rating. Contact Littelfuse for additional load/life information.

2. When switching inductive and/or capacitive loads, the effects of transient voltages and/or currents should be considered. Refer to Application Notes AN108A and

AN107 for details.

3. Electrical Load Life Expectancy - Contact Littelfuse with voltage, current values along with type of load.

4. Breakdown Voltage - per MIL-STD-202, Method 301.

5. Storage Temperature - Long time exposure at elevated temperature may degrade solderability of the leads.

Revised: BO.12/07/20

littelfuse.com

Speciﬁcations are subject to change without notice.

12 3

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