EEWORLDEEWORLDEEWORLD

Part Number

Search

FMF-25FBEF1R78

Description
Fixed Resistor, Metal Film, 0.25W, 1.78ohm, 250V, 1% +/-Tol, -50,50ppm/Cel,
CategoryPassive components    The resistor   
File Size153KB,3 Pages
ManufacturerYAGEO
Websitehttp://www.yageo.com/
Environmental Compliance
Download Datasheet Parametric View All

FMF-25FBEF1R78 Overview

Fixed Resistor, Metal Film, 0.25W, 1.78ohm, 250V, 1% +/-Tol, -50,50ppm/Cel,

FMF-25FBEF1R78 Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
Objectid746920195
Reach Compliance Codecompliant
ECCN codeEAR99
structureCylindrical
JESD-609 codee3
Lead diameter0.55 mm
Number of terminals2
Maximum operating temperature155 °C
Minimum operating temperature-55 °C
Package diameter2.4 mm
Package length6.3 mm
Package shapeCYLINDRICAL PACKAGE
Package formAxial
method of packingBulk
Rated power dissipation(P)0.25 W
resistance1.78 Ω
Resistor typeFIXED RESISTOR
seriesFMF
technologyMETAL FILM
Temperature Coefficient50 ppm/°C
Terminal surfaceTin (Sn)
Tolerance1%
Operating Voltage250 V
Through-hole resisTors
Metal Film Resistors
Flame-Proof Type
Normal & Miniature Style [ FMF Series ]
FeATures
Power Rating
Resistance Tolerance
T.C.R.
Flameproof Multi-layer Coating Meets
Flameproof Feature Meets Overload Test
1/4W, 1/2W, 1W, 2W, 3W
±1%
±50ppm/°C, ±100ppm/°C
UL-94V-0
UL-1412
iNTroDuCTioN
The FMF Series Metal Film Flame-Proof
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 gray
color lacquer.
DerATiNg CurVe
For resistors operated in ambient temperatures above 70°C, power rating must be derated
in accordance with the curve below.
Rated Load (%)
70
100
80
60
40
20
20
40
60
80
100 120 140 160
155 °C
Ambient Temperature (°C)
DiMeNsioNs
sTYle
Normal
ød
H
L
øD
FMF-25
FMF-50
FMF100
FMF200
Miniature
FMF50S
FMF1WS
FMF2WS
FMF3WS
DiMeNsioN
l
6.3±0.5
9.0±0.5
11.5±1.0
15.5±1.0
øD
2.4±0.2
3.3±0.3
4.5±0.5
5.0±0.5
h
28±2.0
26±2.0
35±2.0
33±2.0
Unit: mm
ød
0.55±0.05
0.55±0.05
0.8±0.05
0.8±0.05
Tell me how you got to work today?
The snow in the morning was 20cm thick, I guess~~ I arrived at the bus stop around 6:30. There were two cars parked there, and I was driven to another car by the driver of one car. I slept drowsily on...
soso Talking
How does PN532 Soft Power down work?
Looking at the official information of pn532, it mentions Soft Power down, and the power consumption is only 25ua, but I don’t know how to operate it. Please give me some advice if you have experience...
nzmnyqlxz RF/Wirelessly
Haha, this is my first time making a microcontroller learning board. I'm showing it off.
Haha, this is my first time to make a single-chip learning board, using AVR chips. ATmega16 single-chip learning board. The learning board always needs a name. After thinking about it, I couldn't thin...
tiankai001 MCU
Test Technology of Analog Integrated Circuits
With the advancement of integrated circuit manufacturing technology, people have been able to manufacture integrated circuits with complex circuit structures, high integration, and various functions. ...
fighting Test/Measurement
How is the touch effect of STM8?
I would like to ask those who have used STM8 for touch. I heard from some friends that the library provided by ST has many bugs and is not convenient for debugging. Is this true? Thank you! Recently, ...
zyyu stm32/stm8
About the display problem under UCOS+UCGUI
Experts, I transplanted a 2.4 screen program to a 3.2 screen under UCOS+UCGUI, but found that only a part of it is displayed on the 3.2 screen, and the position of the finger on the touch screen and t...
112233ab stm32/stm8

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 1953  479  2314  309  741  40  10  47  7  15 
Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Room 1530, 15th Floor, Building B, No. 18 Zhongguancun Street, Haidian District, Beijing Telephone: (010) 82350740 Postal Code: 100190
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号