MPM20-86.6-1% datasheet, PDF - EEWORLD Datasheet

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MPM20-86.6-1%: DescriptionFixed Resistor, 20W, 86.6ohm, 300V, 1% +/-Tol, -20,50ppm/Cel, 4018,; CategoryPassive components The resistor; File Size373KB，1 Pages; ManufacturerCaddock

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MPM20-86.6-1% Overview

Fixed Resistor, 20W, 86.6ohm, 300V, 1% +/-Tol, -20,50ppm/Cel, 4018,

MPM20-86.6-1% Parametric

Parameter Name	Attribute value
Maker	Caddock
Reach Compliance Code	compli
ECCN code	EAR99
Other features	FREE AIR POWER: 2.25W
structure	Rectangul
Lead diameter	0.81 mm
Lead length	13.72 mm
lead spacing	5.08 mm
Installation features	THROUGH HOLE MOUNT
Number of terminals	2
Maximum operating temperature	175 °C
Package height	14.73 mm
Package length	10.16 mm
Package form	Radial
Package width	4.45 mm
Rated power dissipation(P)	20 W
Rated temperature	25 °C
resistance	86.6 Ω
Resistor type	FIXED RESISTOR
surface mount	NO
technology	METAL GLAZE/THICK FILM
Temperature Coefficient	-20,50 ppm/°C
Terminal shape	WIRE
Tolerance	1%
Operating Voltage	300 V

MPM20-86.6-1% Preview

MPM20 Kool-Tab

Power Film Resistors

•

MPM20 Kool-Tab

Power Film Resistors introduce a ”Pure Tin Free” design for High Performance Applications. Our proven

Micronox

resistance film system is utilized in the widely accepted TO-220 Power Package to provide a compact 20 watt heat

sink mountable resistor. The non-inductive design makes this resistor ideal in high frequency communications, power switching

circuits and snubbers. The special performance features of the series MPM20 Kool-Tab

Power Film Resistors include:

Up to 20 Watt power rating at +25°C case temperature.

Resistance values as low as 0.020 ohm for current sense applications.

Non-Inductive Design.

Single screw mounting simplifies resistor attachment to the heat sink.

Low profile provides an easier fit in tight places.

A molded case for environmental protection.

Resistor element is electrically isolated from the metal heat sink tab.

“Pure Tin Free” design for High Performance Industrial and Military Applications

TO-220 Style Power Package with Metal Mounting Tab

Use your thermal design experience with power semiconductors in

TO-220 style power packages. This experience will help you get the most

out of this unique family of power resistors. The thermal design issues are

the same where power handling capability is based on the case temperature

which is maintained in your design.

Model

No.

MPM20

Resistance

Min.

0.020 Ω

Max.

10.0 K

Power

Rating

20 Watts

Max.

Voltage

Thermal Resistance

Film (

) to Case (

)

Dielect. Strength

RMS

1,500

Leadwire

Solderable

300

7.50°C/Watt

DERATINg CURVE

100

Derating Using Case Temperature (TC):

Specifications:

Temperature Coefficient:

TC referenced to +25°C, ∆R taken at +175°C

5.00 ohms and above, -20 to +50 ppm/°C

1.00 ohm to 4.99 ohms, -20 to +80 ppm/°C

0.050 ohm to 0.99 ohm, 0 to +200 ppm/°C

0.020 ohm to 0.049 ohm, 0 to +300 ppm/°C

Resistance Tolerance:

±1% (±0.5% is available for

most resistance values).

Insulation Resistance:

10,000 Megohms, min.

Resitor element is electrically isolated from the

mounting surface.

Terminal Strength:

Mil-Std-202, Method 211,

Cond. A (Pull Test) 5 lbs.,

∆R

±(0.2 percent

+ 0.001 ohm) max.

Thermal Shock:

Mil-Std-202, Method 107, Cond.F,

∆R

±(0.3 percent + 0.001 ohm) max.

Momentary Overload:

2 times rated power with

applied voltage not to exceed 1.5 times maximum

continuous operating voltage for 5 seconds,

∆R

±(0.3 percent + 0.001 ohm) max.

Moisture Resistance:

Mil-Std-202, Method 106,

∆R

±(0.5 percent + 0.001 ohm) max.

Load Life:

2,000 hours at rated power,

∆R

±(1.0

percent + 0.001 ohm) max. Power rating depen-

dent upon case temperature. See derating curve.

Shock:

100G, Mil-Std-202, Method 213, Cond.

∆R

±(0.2 percent + 0.001 ohm) max.

Vibration, High Frequency:

Mil-Std-202, Method

204, Cond. D,

∆R

±(0.2 percent + 0.001 ohm) max.

POWER RATING, %

All power and associated overload ratings are derated based

upon case temperature using the derating curve. The case

temperature is measured at the center of the metal mounting

surface, with the part properly mounted and under electrical load.

Without a heat sink, when in free air at +25°C, the MPM20 is

rated for 2.25 watts.

The thermal design should satisfy the following equation:

Case Temperature (Tc ) + [Thermal Resistance (R

θJC

) x power

applied (Watts)] ≤ T

MAX

considering the full operating temperature

range of the application.

100

175

CASE TEMPERATURE, °C, T

MAX

= 175°C

Mounting Note:

Mount on a smooth, clean and flat heat sink surface with a thermal interface material, such

as thermal grease. The entire exposed metal backface portion must be in thermal contact with the heat sink.

When screw mounting, use a compression washer which provides a mounting force of 150 to 300 pounds

(665 to 1330 N). This will provide sufficient pressure on the package over time and through large temperature

variations to maintain the maximum power dissipation capability. Mounting torque to avoid package damage

is 8 in-lbs (0.90 N-m).

For additional applications information regarding mounting and pulse handling see the Caddock

Applications Notes at caddock.com or contact Applications Engineering.

Non-Inductive Design:

MPM20 Kool-Tab® Power Film Resistors are constructed

with our Micronox® resistance film fired onto a flat substrate which is thermally

bonded to the copper heat sink tab. The resistor body is then molded to finish the

TO-220 style package. The lead wire attachment and resistance element geometry

are configured to provide outstanding non-inductive performance.

.400

±.010

(10.16

±.26)

.142

±.003

(3.61

±.08)

DIA.

.175

±.015

(4.45

±.38)

.052

±.003

(1.32

±.08)

Metal Tab

TO-220 Style

MPM20

.240

±.010

(6.10

±.26)

MPM20

50.0

1% 0908

.117

±.003

(2.97

±.08)

.580

±.010

(14.73

±.26)

Measurement Note: For these specifications, resistance

measurement shall be made at a point 0.2 inch (5 mm)

from the resistor body.

.540

±.040

(13.72

±1.02)

.032

.004 DIA.

(.81

.10)

.200

±.010

(5.08

±.26)

.097

±.010

(2.46

±.26)

Ordering Information:

Model Number:

MPM20 - 50.0 - 1%

DIMENSIONS IN INCHES AND (MILLIMETERS)

Applications Engineering

17271 North Umpqua Hwy.

Roseburg, Oregon 97470-9422

Phone: (541) 496-0700

Fax: (541) 496-0408

CADDOCK

Resistor Value:

Tolerance

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

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

Sales and Corporate Office

1717 Chicago Avenue

Riverside, California 92507-2364

Phone: (951) 788-1700

Fax: (951) 369-1151

IL-137.0810

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