SM312.1.5%R datasheet, PDF - EEWORLD Datasheet

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SM312.1.5%R: DescriptionRESISTOR, WIRE WOUND, 3W, 0.5%, 20ppm, 12.1ohm, SURFACE MOUNT, 7128, CHIP, ROHS COMPLIANT; CategoryPassive components The resistor; File Size236KB，2 Pages; ManufacturerSEI(Stackpole Electronics Inc.); Websitehttps://www.seielect.com/; Environmental Compliance

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SM312.1.5%R Overview

RESISTOR, WIRE WOUND, 3W, 0.5%, 20ppm, 12.1ohm, SURFACE MOUNT, 7128, CHIP, ROHS COMPLIANT

SM312.1.5%R Parametric

Parameter Name	Attribute value
Is it Rohs certified?	conform to
Maker	SEI(Stackpole Electronics Inc.)
package instruction	, 7128
Reach Compliance Code	compli
ECCN code	EAR99
JESD-609 code	e3
Manufacturer's serial number	SM
Installation features	SURFACE MOUNT
Number of terminals	2
Maximum operating temperature	275 °C
Minimum operating temperature	-55 °C
Package shape	RECTANGULAR PACKAGE
method of packing	TR, 13 INCH
Rated power dissipation(P)	3 W
Rated temperature	70 °C
resistance	12.1 Ω
Resistor type	FIXED RESISTOR
size code	7128
surface mount	YES
technology	WIRE WOUND
Temperature Coefficient	20 ppm/°C
Terminal surface	Matte Tin (Sn)
Terminal shape	WRAPAROUND
Tolerance	0.5%
Operating Voltage	100 V

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SM/ SMX Series — Surface Mount - Wirewound/ Film

Features

SM - Wirewound Element

• High temperature molded encapsulation

• Flex termination for absorbing thermal expansion

• All welded construction

• Available in non-inductive styles

SMX - Metal Oxide Element

• SMX: economical SMT 2 and 3watt

• SMX extends value range up to 470K

• Both are RoHS compliant/ lead-free

Electrical Specifications

Type

Power Rating

(Watts)

@ 70°C

Maximum

Working Voltage

Resistance

Temperature

Coefficient

±100 ppm/°C

± 20 ppm/°C

±100 ppm/°C

± 20 ppm/°C

±200 ppm/°C

±100 ppm/°C

± 20 ppm/°C

±200 ppm/°C

Ohmic Range and Tolerance

0.1% & 0.5%

0.01Ω – 10Ω*

10Ω – 1K

0.01Ω – 10Ω*

10Ω – 2K

–

0.005Ω – 0.976Ω*

0.01Ω – 10Ω*

10Ω – 3.01K

–

0.01Ω – 10Ω*

10Ω – 1K

0.01Ω – 10Ω*

10Ω – 2K

2.0K – 100K

0.005Ω – 0.976Ω*

0.01Ω – 10Ω*

10Ω – 3.01K

3.01K – 118K

0.01Ω – 10Ω*

10Ω – 1K

0.01Ω – 10Ω*

10Ω – 2K

2.0K – 470K

0.005Ω – 0.976Ω*

0.01Ω – 10Ω*

10Ω – 3.01K

3.01K – 470K

SM 1

SM 2

SMX 2

SM 2A

SM 3

SMX 3

350

100

500

* Zero ohm available on all sizes .

Mechanical Specifications

Type

Tolerance

SM 1

SM/ SMX 2

SM 2A

SM/ SMX 3

Body Length

±0.015

±0.4

0.260

6.6

0.410

10.4

0.475

12.1

0.629

16.0

Total Length

±0.032

±0.81

0.280

7.1

0.435

11.1

0.500

12.7

0.708

18.0

Body Height

±0.015

±0.4

0.140

3.6

0.180

4.6

0.140

3.6

0.256

6.5

Body Width

±0.015

±0.4

0.150

3.8

0.240

6.1

0.305

7.8

0.276

7.0

Termination Width Termination Length Units

±0.015

±0.4

0.090

2.3

0.100

2.5

0.110

2.8

0.110

2.8

±0.015

±0.4

0.100

2.5

0.115

2.9

0.115

2.9

0.115

2.9

inches

How to Order

SEI Type

Code

Nominal Resistance

Tolerance

Packaging

Type

SMX

Element

Wirewound

Metal Oxide

Code

Size

2815

4424

5031

7128

Tolerance

0.1%

0.5%

Series

SM 1

SM 2, SMX 2

SM 2A

SM 3, SMX 3

Code

Description

13" Reel

Pkg Qty

1,500

800

1,200

750

Toll Free: (888) SEI-SEIS

(888) 734-7347

www.seielect.com

email: marketing@seielect.com

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