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FMF-25FRF52-390R

Description
RES MF 1/4W 1% AXIAL
CategoryPassive components   
File Size153KB,3 Pages
ManufacturerYAGEO
Websitehttp://www.yageo.com/
Environmental Compliance
Download Datasheet Parametric View All

FMF-25FRF52-390R Overview

RES MF 1/4W 1% AXIAL

FMF-25FRF52-390R Parametric

Parameter NameAttribute value
resistance390 Ohms
Tolerance±1%
Power (W)0.25W,1/4W
componentmetal film
characteristicFlame resistant and safe
Temperature Coefficient±100ppm/°C
Operating temperature-55°C ~ 155°C
Package/casingAxial
Supplier device packagingAxial
size/dimensions0.094" diameter x 0.248" length (2.40mm x 6.30mm)
Height - Installation (maximum)-
Number of terminals2
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
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