M891 datasheet(17/28 Pages) EPCOS

Part #	M891

Description	NTC thermistors for temperature measurement

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Manufacturer	EPCOS [EPCOS]

Direct Link	http://www.epcos.com

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1.3.1

Solderability (test to IEC 60068-2-58)

Preconditioning: Immersion into flux F-SW 32.

Evaluation criterion: Wetting of soldering areas

≥95%.

Solder

Bath temperature (

°C)

Dwell time (s)

SnPb 60/40

215

±3

±0.3

SnAg (3.0 ... 4.0), Cu (0.5 ... 0.9)

245

±3

±0.3

1.3.2

Resistance to soldering heat (test to IEC 60068-2-58)

Preconditioning: Immersion into flux F-SW 32.

Evaluation criterion: Leaching of side edges

≤1/3.

Solder

Bath temperature (

°C)

Dwell time (s)

SnPb 60/40

260

±5

±1

SnAg (3.0 ... 4.0), Cu (0.5 ... 0.9)

260

±5

±1

Temperature measurement and compensation

B57891M

Leaded NTC thermistors, lead spacing 2.5 mm

M891

Page 17 of 28

Please read Cautions and warnings and

Important notes at the end of this document.

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