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MFR1WSFB-M1K24

更新时间：2025-07-11 00:52:53

品牌：YAGEO

描述：Fixed Resistor, Metal Film, 1W, 1240ohm, 400V, 1% +/-Tol,

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概述
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MFR1WSFB-M1K24 概述

Fixed Resistor, Metal Film, 1W, 1240ohm, 400V, 1% +/-Tol,

MFR1WSFB-M1K24 数据手册

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Leaded ResistoRs

General Type

Metal Film Resistors

Normal & Miniature Style [ MFR Series ]

FeatURes

Power Rating

ResistanceTolerance

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

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

in accordance with the curve below.

iNtRodUCtioN

155 °C

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.

Rated Load (%)

100

Ambient Temperature (°C)

20 40 60 80 100 120 140 160

diMeNsioNs

Unit: mm

stYLe

diMeNsioN

Nꢀrmꢁl

Mꢂnꢂꢁꢃurꢄ

MFR25S

ød

øꢅ

MFR-12

MFR-25

MFR-50

MFR100

MFR200

3.4±0.3

6.3±0.5

9.0±0.5

11.5±1.0

15.5±1.0

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

0.45±0.05

0.55±0.05

0.8±0.05

ød

MFR50S

øD

MFR1WS

MFR2WS

MFR3WS

ꢀ

Note:

eLeCtRiCaL CHaRaCteRistiCs

stYLe

MFR-12 MFR25s MFR-25 MFR50s MFR-50 MFR1Ws MFR100 MFR2Ws MFR200 MFR3Ws

Power Rating at 70°C

Maximum WorkingVoltage

Maximum OverloadVoltage

Voltage Proof

1/6W

200V

400V

300V

1/4W

1/2W

300V

600V

250V

500V

350V

700V

400V

800V

700V

500V

1,000V

400V

Resistance Range

1 Ω - 10M Ω & 0 Ω for E24 & E96 series value

OperatingTemp. Range

Temperature Coefﬁcient

-55°C to +155°C

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

Note: Special value is available on request

eNViRoNMeNtaL CHaRaCteRistiCs

PeRFoRMaNCe test

ShortTime Overload

Voltage Proof

test MetHod

IEC 60115-1 4.13

IEC 60115-1 4.7

IEC 60115-1 4.8

IEC 60115-1 4.6

IEC 60115-1 4.17

aPPRaise

2.5 times RCWV for 5 Sec.

inV-block for 60 Sec., test voltage by type

-55°C to +155°C

±0.25%+0.05 Ω

By type

Temperature Coefﬁcient

Insulation Resistance

Solderability

By type

inV-block for 60 Sec.

>10,000M Ω

95% Min. coverage

235±5°C for 3±0.5 Sec.

No deterioration of

coatings and markings

Solvent Resistance of Marking

IEC 60115-1 4.30

IPA for 5±0.5 Min. with ultrasonic

Robustness ofTerminations

Periodic-pulse Overload

Damp Heat Steady State

Endurance at 70°C

IEC 60115-1 4.16

IEC 60115-1 4.39

IEC 60115-1 4.24

IEC 60115-1 4.25

IEC 60115-1 4.19

IEC 60115-1 4.18

Direct load for 10 Sec. in the direction of the terminal leads

4 times RCWV 10,000 cycles (1 Sec. on, 25 Sec. off)

≥2.5kg (24.5N)

±1.0%+0.05 Ω

±1.5%+0.05 Ω

±0.75%+0.05 Ω

±0.25%+0.05 Ω

40±2°C, 90-95% RH for 56 days, loaded with 0.1 times RCWV

70±2°C at RCWV for 1,000 Hr. (1.5 Hr. on, 0.5 Hr. off)

-55°C  RoomTemp.  +155°C  RoomTemp. (5 cycles)

Temperature Cycling

Resistance to Soldering Heat

260±3°C for 10±1 Sec., immersed to a point 3±0.5mm from the body

Note: Rated Continuous WorkingVoltage (RCWV) = Power Rating x ResistanceValue

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