MFR-25DBCFFK249R datasheet, PDF

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MFR-25DBCFFK249R: DescriptionFixed Resistor, Metal Film, 0.25W, 249ohm, 250V, 0.5% +/-Tol, -15,15ppm/Cel,; CategoryPassive components The resistor; File Size227KB，2 Pages; ManufacturerYAGEO; Websitehttp://www.yageo.com/; Environmental Compliance

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MFR-25DBCFFK249R Overview

Fixed Resistor, Metal Film, 0.25W, 249ohm, 250V, 0.5% +/-Tol, -15,15ppm/Cel,

MFR-25DBCFFK249R Parametric

Parameter Name	Attribute value
Is it Rohs certified?	conform to
Objectid	750490407
Reach Compliance Code	compliant
Country Of Origin	Mainland China
ECCN code	EAR99
YTEOL	7
structure	Cylindrical
JESD-609 code	e3
Lead diameter	0.55 mm
Number of terminals	2
Maximum operating temperature	155 °C
Minimum operating temperature	-55 °C
Package diameter	2.4 mm
Package length	6.3 mm
Package shape	CYLINDRICAL PACKAGE
Package form	Axial
method of packing	Bulk
Rated power dissipation(P)	0.25 W
resistance	249 Ω
Resistor type	FIXED RESISTOR
series	MFR
technology	METAL FILM
Temperature Coefficient	15 ppm/°C
Terminal surface	Matte Tin (Sn)
Tolerance	0.5%
Operating Voltage	250 V

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Leaded ResistoRs

Metal Film Resistors

General Type

Normal & Miniature Style [ MFR Series ]

FeatURes

Power Rating

Resistance Tolerance

T.C.R.

1/6W, 1/4W, 1/2W, 1W, 2W, 3W

±0.5%, ±1%, ±5%

±15ppm/°C, ±25ppm/°C, ±50ppm/°C, ±100ppm/°C

deRatiNG CURVe

iNtRodUCtioN

The MFR Series Metal Film Resistors are

manufactured using a vacuum sputtering system

to deposit multiple layers of mixed metal

alloys and passivative materials onto a carefully

treated high grade ceramic substrate. After a

helical groove has been cut in the resistive layer,

tinned connecting leads of electrolytic copper

are welded to the end-caps. The resistors are

coated with layers of blue color lacquer.

For resistors operated in ambient temperatures above 70°C, power rating must be derated

in accordance with the curve below.

Rated Load (%)

100

100 120 140 160

155 °C

Ambient Temperature (°C)

diMeNsioNs

stYLe

Normal

MFR-12

ød

øD

MFR-25

MFR-50

MFR100

MFR200

Miniature

MFR25S

MFR50S

MFR1WS

MFR2WS

MFR3WS

diMeNsioN

3.4±0.3

6.3±0.5

9.0±0.5

11.5±1.0

15.5±1.0

ød

1.9±0.2

2.4±0.2

3.3±0.3

4.5±0.5

5.0±0.5

28±2.0

26±2.0

35±2.0

33±2.0

Unit: mm

ød

0.45±0.05

0.55±0.05

0.8±0.05

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