LAS31821HLF datasheet, PDF - EEWORLD Datasheet

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LAS31821HLF: DescriptionWirewound Resistors - Through Hole; CategoryPassive components; File Size356KB，3 Pages; ManufacturerTT Electronics

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LAS31821HLF Overview

Wirewound Resistors - Through Hole

LAS31821HLF Parametric

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

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Resistors

Low Cost Semi-Precision

Power Wirewound Resistor

Low Cost Semi-Precision

LAS Series

Power Wirewound Resistor

1 and 3 watts

0.1 ohm

LAS Series

to 18K ohms

•

Color

watts

identification

and 3

band

•

0.1 ohm to 18K ohms

±5%, ±3%, ±1%, ±.5% tolerance

•

Color band identiﬁcation

Resistance wire TCR ±20 ppm/°C

•

±5%, ±3%, ±1%, ±.5% tolerance

RoHS-compliant version available

•

Resistance wire TCR ±20 ppm/°C

•

RoHS-compliant version available

½llo½ resistance wirewound

to speci½ic parameters includin½

TCR½s ½rom ±20 to ½5500 ppm/°C

½ll welded

cap and lead

Colorband

½ar½in½

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

Heat conductin½

ceramic substrate

Silicone

con½ormal coatin½

Electrical Data

IRC

Type

LAS-1

LAS-3

Power Rating 275°C

Max. Hot Spot

125°C

25°C

Commercial Range

(ohms)

Min.

0.1

Max.

7.5K

18K

Non-Inductive Range

(ohms)

Min.

0.1

0.2

Max.

3.8K

7.5K

Available Resistance

(ohms)

0.5%, 1%

1 - 7.5K

1 - 18K

3%, 5%

0.1 - 7.5K

0.1 - 18K

Environmental Data

Test Condition (@ 25°C)

Load Life 1000 hours

Moisture Resistance

Temperature Cycle

Short Time Overload

Low Temperature Operation

Solder Heat

Shock

Vibration

LAS-3 Carbon Comp Replacement (contact factory)

The L½S-3 is a three watt con½ormal coated precision wirewound resistor. The resistance wire is welded to the end caps and

wound on alumina rod ½or ½ood thermal conductivit½. In circuit applications that utilize two watt carbon comp resistors the L½S-3

is an idead e½½ective replacement. The L½S-3 5.6 ohm can be speciﬁcall½ desi½ned to withstand 22 jooules o½ ener½½ delivered

b½ a 1000 volt 10 x 1000 usec wave shape pulse.

LIGHTNING SURGE

Special L½S-3 5.6 ohm to 100 ohm will meet

Telecom GR-1089 li½htnin½ requirements.

•

V = 1000 volts

T1 = 10 usec rise

T2 = 1000 usec to V2

10 ohm output impedance

Max

∆R

1.0%

0.5%

0.25%

0.5%

MICROSECONDS

General Note

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

General Note

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

Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com

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

All information is subject to TT Electronics’ own data and is considered accurate at time of going

Wire and Film Technologies Division

• 4222 South Staples Street • Corpus Christi Texas 78411 USA

to print.

BI Technologies IRC Welwyn

A subsidiary of

TT electronics plc

http://www.ttelectronics.com/resistors

LAS Series Issue October 2008 Sheet 1 of 3

04.17

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