ML124-499K-0.5% datasheet, PDF

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ML124-499K-0.5%: DescriptionFixed Resistor, 0.25W, 499000ohm, 300V, 0.5% +/-Tol, 50ppm/Cel,; CategoryPassive components The resistor; File Size475KB，1 Pages; ManufacturerCaddock

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ML124-499K-0.5% Overview

Fixed Resistor, 0.25W, 499000ohm, 300V, 0.5% +/-Tol, 50ppm/Cel,

ML124-499K-0.5% Parametric

Parameter Name	Attribute value
Is it Rohs certified?	incompatible
Objectid	740014860
Reach Compliance Code	unknown
ECCN code	EAR99
Other features	PRECISION
structure	Rectangular
Lead diameter	0.64 mm
Lead length	38.1 mm
Installation features	THROUGH HOLE MOUNT
Number of terminals	2
Maximum operating temperature	175 °C
Package diameter	2.39 mm
Package length	6.35 mm
Package shape	TUBULAR PACKAGE
Package form	Axial
Rated power dissipation(P)	0.25 W
Rated temperature	125 °C
resistance	499000 Ω
Resistor type	FIXED RESISTOR
surface mount	NO
technology	METAL GLAZE/THICK FILM
Temperature Coefficient	50 ppm/°C
Terminal shape	WIRE
Tolerance	0.5%
Operating Voltage	300 V

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Type MM and ML Precision Film Resistors

High Temperature Resistors for Geophysical, Industrial, and Military Requirements

Type MM and ML resistors have a proven performance history in industrial and military applications. Utilizing

our proven Micronox

resistance films, these resistors are available with power ratings up to 1 Watt

and resistance values to 10 Megohms. These resistors are ideal for applications requiring tolerances as close as 0.1% and

extended life stability of 0.1% per 1,000 hours.

Some models of Type MM and ML resistors are manufactured with Caddock's Non-Inductive Design that provides for

neighboring lines to carry current in opposite directions. This efficient non-inductive construction is accomplished without

derating of any performance advantages.

Type MM features:

•

Max. Operating Temperature to +275°C.

•

High Power Rating at +125°C.

•

TC of 50 ppm/°C from -15°C to +105°C.

•

Non-Inductive Performance Available.

Type ML features:

•

TC of 50 ppm/°C from -15°C to +105°C.

•

Non-Inductive Performance Available.

MM 112, ML104

MM125, ML114

MM152, ML124

MM177, ML131

Model

No.

Caddock's

Non-Inductive

Design

MM215, ML181

Watt-

age

Max.

Voltage

Oper.

Temp.

(Max.)

Dielect.

Strength

Resistance

Min.

Max.

Dimensions in inches and (millimeters)

.160

±.010

(4.06

±.26)

.188

±.020

(4.78

±.51)

.250

±.020

(6.35

±.51)

.065

±.010

(1.65

±.26)

.070

±.015

(1.78

±.38)

.094

±.006

(2.39

±.15)

.094

±.006

(2.39

±.15)

.150

±.010

(3.81

±.26)

.065

±.010

(1.65

±.26)

.018

±.004

(.48

±.10)

.020

±.002

(.51

±.05)

.025

±.002

(.64

±.05)

.025

±.002

(.64

±.05)

.025

±.002

(.64

±.05)

.018

±.004

(.48

±.10)

Specifications:

Resistance Tolerance:

±1% (tolerances to 0.1%

on special order).

Temperature Coefficient:

50 ppm/°C referenced

to +25°C,

∆R

taken at -15°C and +105°C.

Insulation Resistance:

10,000 Megohms, min.

MM112

MM125

MM152

MM177

MM215

ML104

ML114

ML124

ML131

ML181

0.12

0.25

0.4

0.6

1.0

0.08

0.15

0.25

0.4

0.6

200

300

500

800

200

300

500

600

275°C

175°C

400

500

750

1,000

400

500

750

500 K

1 Meg

2 Meg

5 Meg

10 Meg

300 K

500 K

600 K

1 Meg

5 Meg

.313

±.020

(7.95

±.51)

.400

±.020

(10.16

±.51)

.160

±.010

(4.06

±.26)

.400

±.020

(10.16

±.51)

.188

±.020

(4.78

±.51)

.250

±.020

(6.35

±.51)

.313

±.020

(7.95

±.51)

.070

±.015

(1.78

±.38)

.094

±.006

(2.39

±.15)

.094

±.006

(2.39

±.15)

.150

±.010

(3.81

±.26)

.020

±.002

(.51

±.05)

.025

±.002

(.64

±.05)

.025

±.002

(.64

±.05)

.025

±.002

(.64

±.05)

Overload/Overvoltage:

5 times rated power

with applied voltage not to exceed 1.5 times

maximum continuous operating voltage for 5

seconds,

∆R

0.5% max. or 0.5 ohm max.,

whichever is greater.

Thermal Shock:

Mil-Std-202, Method 107,

Cond. F,

∆R

0.2% max. or 0.5 ohm max.,

whichever is greater.

Moisture Resistance:

Mil-Std-202, Method 106,

∆R

0.5% max. or 0.5 ohm max., whichever is

greater.

Loadlife:

1,000 hours at +125°C at rated power,

not to exceed rated voltage,

∆R

0.5% max. or 0.5

ohm max., whichever is greater.

Solderable leads

Encapsulation:

Transfer Molded.

1.500

.125

(38.10

3.18)

Models with low inductance construction are in shaded areas.

Models with Caddock's Non-Inductive Resistance Pattern are in non-shaded areas.

Replacement Notes:

Model

MM216

MM217

MM224

MM225

MM236

replaced

MS221

MS223

MS244

MS245

MS260

Model

ML212

ML213

ML218

ML219

ML226

replaced

MS221

MS223

MS244

MS245

MS260

Ordering Information

Model Number:

ML124 - 20.0K - 1%

DIMENSIONS IN INCHES AND (MILLIMETERS)

Resistor Value:

Tolerance

Derating Curve:

Note:

The MM and ML resistors are intended for high performance electronics applications

that are outside the scope of the HoHS directive. Contact Caddock Applications Engineering

for an RoHS compliant alternative.

RATED POWER OR 60

RATED VOLTAGE, % 40

100

A - ML

B - MM

225

275

AMBIENT TEMPERATURE,

°C

125

175

e-mail: caddock@caddock.com • web: www.caddock.com

For Caddock Distributors listed by country see caddock.com/contact/dist.html

ELECTRONICS, INC.

Sales and Applications Engineering

17271 North Umpqua Hwy.

Roseburg, Oregon 97470-9422

Phone: (541) 496-0700

Fax: (541) 496-0408

28_IL124.0717

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