WSM23R00FLF datasheet, PDF - EEWORLD Datasheet

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WSM23R00FLF: DescriptionWirewound Resistors - SMD; CategoryPassive components; File Size505KB，3 Pages; ManufacturerTT Electronics

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WSM23R00FLF Overview

Wirewound Resistors - SMD

WSM23R00FLF Parametric

Parameter Name	Attribute value
Product Attribute	Attribute Value
Manufacturer	TT Electronics
Product Category	Wirewound Resistors - SMD
Technology	Wirewound
Mounting Style	PCB Mount

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Resistors

Moulded Surface Mount

Wirewound Resistors

WSM Series

Welwyn Components

•

Ideal for automatic pick and place

•

Direct replacement for Axial resistors

Flexible Terminations

All welded construction

•

All welded construction

Ideal for automatic pick and place

Lead free, RoHS compliant construction only

Contact factory for ohmic values above published ranges

All parts are Pb-free and comply with EU Directive 2011/65/EU (RoHS2)

Electrical Data

WSM1

Power rating at 70°C

Resistance range

Limiting element voltage

TCR

Resistance tolerance

Standard values

Ambient temperature range

°C

watts

ohms

volts

ppm/°C

< 1

Ω

: 100

≥

Ω

: 20

0R01 to 400R

WSM2

0R01 to 1K

100

< 1

Ω

: 100

≥

Ω

: 20

*1, 2, 5, 10

E24 preferred

-55 to 275°C

≤.03 Ω

700

≤0.1 Ω

: 200

≤10R

100

>10R 20

WSM3

0R05 to 3K

*Note 1% and 5% preferred. WSM1 available at 5% only below 1R0. WSM2 available at 5% only below 0R05.

Physical Data

Dimensions Inches (mm)

Type

WSM1

WSM2

WSM3

L max

0.310 max

(7.9 max)

0.462 max

(11.7 max)

0.677 max

(17.2 max)

I Nom

0.115 max

(2.9 max)

0.137 max

(3.5 max)

0.137 max

(3.5 max)

A Max

0.275 max

(7.0 max)

0.425 max

(10.8 max)

0.64 max

(16.3 max)

W Max

0.165 max

(4.2 max)

0.260 max

(6.6 max)

0.29 max

(7.4 max)

H Max

0.155 max

(3.94 max)

0.195 max

(5.0 max)

0.265 inch

(6.7 max)

Recommended Pad Sizes

Type

WSM1

WSM2

WSM3

0.13 inch

(3.3 mm)

0.157 inch

(4.0 mm)

0.157 inch

(4.0 mm)

0.138 inch

(3.5 mm)

0.181 inch

(4.6 mm)

0.236 inch

(6.2 mm)

0.074 inch

(1.9 mm)

0.221 inch

(5.6 mm)

0.378 inch

(9.6 mm)

0.35 inches

(8.9 mm)

0.583 inch

(14.8 mm)

0.85 inch

(21.6 mm)

Construction

A high purity ceramic substrate is assembled with interference

fit end caps to which are welded the terminations. The

resistive element is wound on the substrate and welded to

the caps. The unit is then moulded.

Marking

WSM resistors are legend marked with type value and

tolerance.

WSM1 Resistors are marked with value and tolerance.

Flammability

The resistor coating is a flame retardant epoxy to UL 94.

General Note

Solvent Resistance

The body protection and marking are resistant to all normal

industrial cleaning solvents suitable for printed circuits.

General Note

is subject to Welwyn’s own data and is considered accurate at time of going to print.

All information

Welwyn Components reserves the right to make changes in product specification without notice or liability.

TT Electronics reserves the right to make changes in product specification without notice or liability.

subject to TT Electronics’ own

Bedlington, Northumberland

at time of going

All information is

Components Limited

data and is considered accurate

NE22 7AA, UK

to print.

Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com

subsidiary of

BI Technologies IRC

Welwyn

TT electronics plc

http://www.ttelectronics.com/resistors

Issue C · 04.03

04.18

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