MF1/4CCUR18R7F datasheet, PDF - EEWORLD Datasheet

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MF1/4CCUR18R7F: DescriptionFixed Resistor, Metal Film, 0.25W, 18.7ohm, 250V, 1% +/-Tol, 50ppm/Cel, Through Hole Mount, AXIAL LEADED, ROHS COMPLIANT; CategoryPassive components The resistor; File Size266KB，2 Pages; ManufacturerKOA; Environmental Compliance

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MF1/4CCUR18R7F Overview

Fixed Resistor, Metal Film, 0.25W, 18.7ohm, 250V, 1% +/-Tol, 50ppm/Cel, Through Hole Mount, AXIAL LEADED, ROHS COMPLIANT

MF1/4CCUR18R7F Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Objectid	1273418447
package instruction	AXIAL LEADED, ROHS COMPLIANT
Reach Compliance Code	compliant
Country Of Origin	Japan, Mainland China, Taiwan
ECCN code	EAR99
YTEOL	6.55
Other features	SEMI PRECISION
JESD-609 code	e2
Manufacturer's serial number	MF
Installation features	THROUGH HOLE MOUNT
Number of terminals	2
Maximum operating temperature	155 °C
Minimum operating temperature	-55 °C
Package shape	TUBULAR PACKAGE
method of packing	TR
Rated power dissipation(P)	0.25 W
Rated temperature	70 °C
Guideline	AEC-Q200
resistance	18.7 Ω
Resistor type	FIXED RESISTOR
surface mount	NO
technology	METAL FILM
Temperature Coefficient	50 ppm/°C
Terminal surface	Tin/Copper (Sn/Cu)
Terminal shape	WIRE
Tolerance	1%
Operating Voltage	250 V

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general purpose metal film leaded resistor

features

•

Semi-precision metal film resistors

•

The discharge path resistor is recognized by UL 1676 and

c-UL (CAS-C22.2 No.1-M94). (File No. E159326) (RK only)

•

Meets requirements of MIL-R-22684

•

Suitable for automatic machine insertion

•

MFS two times the power rating of the standard body type

•

Marking: Blue-gray body color with color-coded bands

•

Products with lead-free terminations meet EU RoHS

and China RoHS requirements

•

AEC-Q200 Qualified: MF1/4, MFS1/4, MFS1/2

dimensions and construction

Trimming Line

Ceramic Core

Type

MFS1/4

L (ref.)

.126±.008

(3.2±0.2)

.248±.02

(6.3±0.5)

.248±.02

(6.3±0.5)

.354±0.4

(9.0±1.0)

.610±.02

(15.5±0.5)

.248±.02

(6.3±0.5)

.374±.04

(9.5±1.0)

.610±.04

(15.5±1.0)

Dimensions

inches

(mm)

C (max.)

d (nom.)

.133

(3.4)

.280

(7.1)

.280

(7.1)

.437

(11.1)

.721

(18.3)

.280

(7.1)

.437

(11.1)

.720

(18.3)

.066

(1.7

+.007

-.004

+0.2

)

-0.1

.018

(0.45)

.024

(0.6)

.024

(0.6)

.024

(0.6)

.031

(0.8)

.024

(0.6)

.024

(0.6)

.031

(0.8)

1.50±.118

(38.0±3.0)

0.94 min.

(24.0 min.)

1.50±.118

(38.0±3.0)

1.10±.118

(28.0±3.0)

Marking

Resistive

Film

End

Cap

Lead

Wire

MF1/4

MFS1/2

Insulation Coating

.091±.012

(2.3±0.3)

.091±.012

(2.3±0.3)

.138±.016

(3.5±0.4)

.217±.02

(5.5±0.5)

.091±.012

(2.3±0.3)

.138±.016

(3.5±0.4)

.217±.02

(5.5±0.5)

Derating Curve

100

% Rated Power

-60 -40 -20

-55

Surface Temperature Rise

Temperature Rise (°C)

MF1/4

100

MFS1/2

MF1/2

MF1

MFS1/4

MF1/2

MF1

RK1/4

RK1/2

RK1

80 100 120 140 160

155

Ambient Temperature

(°C)

% Rated Power

* Lead length changes depending on taping and forming.

ordering information

New Part #

Type

MFS

1/4

Power

Rating

1/4: 0.25W

1/2: 0.50W

1: 1W

T.C.R.

E: ±25

C: ±50

D: ±100

L: ±200

G: ±250

B: ±350

Termination

Material

C: SnCu

T52

Taping and Forming

1/4: T26, T52, VT, VTP,

VTE, MT, M, U,

M10, M12.5

1/2: T26, T52, VTP,

VTE, M12.5, M15

1: T521

Packaging

A: Ammo

R: Reel

R20

Nominal

Resistance

+2%: 2 signifi-

cant figures +

1 multiplier

+0.5%,+1%:

3 significant

figures + 1

multiplier

“R” indicates

decimal on

value <100Ω

Tolerance

B: ±0.1%

C: ±0.25%

D: ±0.5%

F: ±1%

G: ±2%

J: ±5%

For further information on packaging,

please refer to Appendix C.

applications and ratings

Minimum

Absolute Absolute

Resistance Range (Ω)

Power

Operating

Part

Dielectric

T.C.R.

Maximum Maximum

Rating

Temperature

Designation

Withstanding (ppm/°C)

(B±0.1%) (C±0.25%) (D±0.5%) (F±1.0%) (G±2.0%) (J±5.0%)

Working Overload

@ 70°C

Range

Voltage

E-24

E-96

E-24 E-192 E-24 E-96

E-24

-55°C

MFS1/4C

C: ±50

49.9 -

0.25W

300V

—

10 - 1M

—

250V

300V

562k

MFS1/4D

D: ±100

+155°C

Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.

12/18/12

KOA Speer Electronics, Inc.

• 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com

109

resistors

MF, MFS, RK

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