WW1FT681R datasheet, PDF - EEWORLD Datasheet

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WW1FT681R: DescriptionFixed Resistor, Wire Wound, 1.1W, 681ohm, 500V, 1% +/-Tol, 20ppm/Cel, Through Hole Mount, AXIAL LEADED; CategoryPassive components The resistor; File Size185KB，5 Pages; ManufacturerSEI(Stackpole Electronics Inc.); Websitehttps://www.seielect.com/; Environmental Compliance

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WW1FT681R Overview

Fixed Resistor, Wire Wound, 1.1W, 681ohm, 500V, 1% +/-Tol, 20ppm/Cel, Through Hole Mount, AXIAL LEADED

WW1FT681R Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Maker	SEI(Stackpole Electronics Inc.)
package instruction	Axial,
Reach Compliance Code	compliant
ECCN code	EAR99
Factory Lead Time	18 weeks
Other features	PRECISION
structure	Tubular
JESD-609 code	e3
Lead diameter	0.64 mm
Installation features	THROUGH HOLE MOUNT
Number of terminals	2
Maximum operating temperature	350 °C
Minimum operating temperature	-55 °C
Package diameter	2.79 mm
Package length	9.53 mm
Package form	Axial
method of packing	TR, 11 INCH
Rated power dissipation(P)	1.1 W
Rated temperature	70 °C
resistance	681 Ω
Resistor type	FIXED RESISTOR
surface mount	NO
technology	WIRE WOUND
Temperature Coefficient	20 ppm/°C
Terminal surface	Matte Tin (Sn)
Terminal shape	WIRE
Tolerance	1%

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WW/MWW/NWW/WWS Series

General Purpose and Precision Wirewound Resistor

Stackpole Electronics, Inc.

Resistive Product Solutions

Features:

•

WWS offers miniature size at higher power rating

High performance for low cost

High power to size ratio

MWW/NMWW – completely molded construction with welded terminations

Complete welded terminations

Tinned copper leads

Available in non-inductive styles

Tighter tolerances may be available for non-inductive styles.

Contact Stackpole with requirements.

High temperature silicone coating

RoHS compliant

Higher operating temperatures available

“B” packaging code denotes bulk packaging - contact Stackpole for package quantities

Electrical Specifications – WW, WWS, MWW

Power Rating (W)

@ 125ºC

@ 70ºC

WW12

0.4 W

0.5 W

WW1

1.1 W

WW1A

RW-70

1.3 W

WW2

RW-69

1.5 W

2.1 W

WWS2

2.5 W

2.6 W

WW2A

2.5 W

2.6 W

WW3

RW-79

3.2 W

WWS3

3.2 W

WW3A

3.4 W

WW4

4.3 W

WWS4

RW-79

4.3 W

WW5

RW-67, RW-74

5.1 W

WWS5

5.1 W

WW7

6.5 W

7.2 W

WWS7

RW-67, RW-74

6.5 W

7.2 W

WW7B

7.7 W

WW10

RW-78

10 W

11 W

WWS10

10 W

11 W

MWW1

RW-70

1.3 W

MWW3

RW-79

3.2 W

MWW5

RW-67, RW-74

5.5 W

MWW10

RW-68, RW-74

10 W

11 W

(*) Other resistance values available - contact factory for details.

Type / Code

MIL-R-26 Ref.

TCR (ppm/ºC)

Ohmic Range (Ω) and Tolerance (*)

0.1%

0.5%

5 - 2K

3 - 2K

5 - 2K

2 - 3K

1 - 5K

1 - 10K

0.5 - 10K

1 - 10K

0.5 - 10K

1 - 10K

0.5 - 10K

1 - 22K

0.5 - 22K

3 - 10K

1 - 10K

1 - 30K

0.5 - 30K

1 - 40K

0.5 - 40K

1 - 22K

0.5 - 22K

1 - 50K

0.5 - 50K

1 - 40K

0.5 - 40K

1 - 70K

0.5 - 70K

1 - 50K

0.5 - 50K

1 - 70K

0.5 - 70K

1 - 100K

0.5 - 100K

1 - 70K

0.5 - 70K

5 - 2K

3 - 20K

2 - 40K

2 - 80K

< 1Ω = ±90ppm/ºC

1Ω to 10Ω = ± 50ppm/ºC

>10Ω = ±20ppm/ºC

Electrical Specifications – Non-Inductive Styles

Power Rating (W) Power Rating (W)

@ 125ºC

@ 70ºC

NWW12

0.4 W

0.5 W

NWW1

1.1 W

NWW1A

RW-70

1.3 W

NWW2

RW-69

1.5 W

2.1 W

NWWS2

2.5 W

2.6 W

NWW2A

2.5 W

2.6 W

NWW3

RW-79

3.2 W

NWWS3

3.2 W

NWW3A

3.4 W

NWW4

4.3 W

NWWS4

RW-79

4.3 W

NWW5

RW-67, RW-74

5.1 W

NWWS5

5.1 W

NWW7

6.5 W

7.2 W

NWWS7

RW-67, RW-74

6.5 W

7.2 W

NWW7B

7.7 W

(*) Other resistance values available - contact factory for details.

Type / Code

MIL-R-26 Ref.

TCR (ppm/ºC)

Ohmic Range (Ω) and Tolerance (*)

10 - 1K

2 - 1.5K

1 - 2.5K

1 - 5K

1 - 11K

3 - 5K

1 - 15K

1 - 20K

1 - 11K

1 - 25K

1 - 20K

1 - 35K

1 - 25K

1 - 35K

< 1Ω = ±90ppm/ºC

1Ω to 10Ω = ± 50ppm/ºC

>10Ω = ±20ppm/ºC

Rev Date: 10/27/2017

This specification may be changed at any time without prior notice

Please confirm technical specifications before you order and/or use.

www.seielect.com

marketing@seielect.com

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