WW21.780.5%R datasheet, PDF - EEWORLD Datasheet

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WW21.780.5%R: DescriptionRESISTOR, WIRE WOUND, 1.5W, 0.5%, 50ppm, 1.78ohm, THROUGH HOLE MOUNT, AXIAL LEADED, ROHS COMPLIANT; CategoryPassive components The resistor; File Size95KB，3 Pages; ManufacturerSEI(Stackpole Electronics Inc.); Websitehttps://www.seielect.com/; Environmental Compliance

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WW21.780.5%R Overview

RESISTOR, WIRE WOUND, 1.5W, 0.5%, 50ppm, 1.78ohm, THROUGH HOLE MOUNT, AXIAL LEADED, ROHS COMPLIANT

WW21.780.5%R Parametric

Parameter Name	Attribute value
Is it Rohs certified?	conform to
Maker	SEI(Stackpole Electronics Inc.)
package instruction	AXIAL LEADED, ROHS COMPLIANT
Reach Compliance Code	compliant
ECCN code	EAR99
Other features	PRECISION
JESD-609 code	e3
Manufacturer's serial number	WW
Installation features	THROUGH HOLE MOUNT
Number of terminals	2
Maximum operating temperature	275 °C
Minimum operating temperature	-55 °C
Package shape	TUBULAR PACKAGE
method of packing	TR
Rated power dissipation(P)	1.5 W
Rated temperature	125 °C
resistance	1.78 Ω
Resistor type	FIXED RESISTOR
surface mount	NO
technology	WIRE WOUND
Temperature Coefficient	50 ppm/°C
Terminal surface	Matte Tin (Sn)
Terminal shape	WIRE
Tolerance	0.5%

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WW/MWW Series

General Purpose and Precision Wirewound

Features:

•

Stackpole Electronics, Inc.

Resistive Product Solutions

WWS offers miniature size at higher power rating

High performance for low cost

High power to size ratio

MWW – Completely molded construction with welded

terminations tested to MIL-R-39007

Complete welded terminations

Tinned copper leads

Available in non-inductive styles

High temperature silicone coating

RoHS compliant / lead-free

Electrical Specifications

Type / Code

WW H

WW 1 / WWS 2

WW 1A

WW 2 / WWS 3

WW 2A

WW 3 / WWS 4

WW 3A

WW 4 / WWS 5

WW 5 / WWS 7

WW 7

WW 7B / WWS 10

WW 10

MWW 1

MWW 3

MWW 5

MWW 10

MIL-R-26 Ref.

RW-70

RW-69

RW-79

RW-67, RW-74

RW-78

RW-70

RW-79

RW-67, RW-74

RW-68, RW-74

Dielectric

Power Rating (Watts)

Strength

(V)

@ 125ºC (U) @ 25ºC (V)

500V

1,000V

0.4W

1.5W

2.5W

6.5W

10W

0.6W

1.2W

1.5W

2.5W

3.7W

8.5W

13W

1.5W

3.75W

6.5W

13W

>10Ω = ±20ppm/ºC

1Ω to 10Ω = ±50ppmºC

< 1Ω = ±90ppm/ºC

Resitance Temperature

Coefficient

Ohmic Range(Ω) and Tolerance(1)

0.1%, 0.5%, 1% & 5%

Standard

0.1 - 2K

0.1 - 3K

0.1 - 7K

0.1 - 10K

0.1 - 15K

0.1 - 22K

0.1 - 30K

0.1 - 40K

0.1 - 50K

0.1 - 70K

0.1 - 100K

0.1 - 150K

0.1 - 2K

0.1 - 20K

0.1 - 40K

0.1 - 150K

Non-Inductive

0.1 - 1K

0.1 - 1.5K

0.1 - 3.5K

0.1 - 5K

0.1 - 7.5K

0.1 - 11K

0.1 - 15K

0.1 - 20K

0.1 - 25K

0.1 - 35K

0.1 - 50K

0.1 - 75K

(1) Lesser of√PR or maximum working voltage

How to Order

SEI Type

Code

Nominal

Resistance

Tolerance

Packaging

Type

WWS

MWW

NWW

Description

Standard

Mini

Molded

Non-Inductive

Code

10K

Tolerance

0.1%

0.5%

Types

WW H, WW 1, WWS2, WW 1A, MWW 1

WW 2, WWS3, WW 2A, WW 3, WWS4,

WW 4, WWS5, MWW 3

WW 3A

WW 5, WWS7, WW 7, WW 7B, WWS10,

WW 10, MWW 5

WW 10, MWW 10

Qty

2,500

2,000

5,000

500

250

11" Flange

Description

Code

Rev Date: 04/23/2010

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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