RTO020F2R000JTE3 datasheet, PDF

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RTO 20

www.vishay.com

Vishay Sfernice

20 W Power Resistor, Thick Film Technology, TO-220

FEATURES

• 20 W at 25 °C heatsink mounted

• High power dissipation to size ratio

• Wide resistance range from 0.01



to 550 k

• Negligible inductance

• Easy mounting

• TO-220 package: compact and easy to mount

• Material categorization: for definitions of compliance

please see

www.vishay.com/doc?99912

Two versions of this thick film resistor are available:

Models

Available

DESIGN SUPPORT TOOLS

click logo to get started

• A radial leaded version for PCB mounting

• A flat lead version for surface mounting

The well known TO-220 package is compact and easy to

mount.

DIMENSIONS

in millimeters

RTO 20F - LEADED

4.5

RTO 20C - FOR SURFACE MOUNTING

4.5

1.3

10.1

Ø 3.6

1.3

10.1

Ø 3.6

12.5

15

8.8

12.5

15

8.8

2

13.7

1.6

3

0.3

5.08

• Only for RTO 20 version C = during surface mount soldering temperature profile

must not cause the metal tab of this device to exceed 220 °C.

Ø 0.8

5.08

2.5

Note

• Tolerances unless stated: ± 0.4 mm

STANDARD ELECTRICAL SPECIFICATIONS

MODEL

RTO 20

Note

(1)

E24 series

SIZE

TO-220

RESISTANCE RATED POWER

RANGE

P

25 °C



W

(1)

0.010 to 550K

20

LIMITING ELEMENT

VOLTAGE

U

L

V

500

TOLERANCE

±%

1, 2, 5, 10

TEMPERATURE

COEFFICIENT

± ppm/°C

150

CRITICAL

RESISTANCE



12.5K

MECHANICAL SPECIFICATIONS

Mechanical Protection

Resistive Element

Substrate

Connections

Weight

Insulated case

Thick film

Alumina onto base of nickel coated

copper

Tinned copper

2.2 g max.

TECHNICAL SPECIFICATIONS

Dissipation and

Associated

Thermal Resistance

and Nominal Power

Dielectric Strength

MIL STD 202

Insulation Resistance

Inductance

Onto a heatsink

20 W at + 25 °C

R

TH (j - c)

: 6.5 °C/W

Free air:

2 W at +25 °C

2000 V

RMS

- 1 min - 10 mA max.

(between terminals and heatsink)



10

6

M



0.1 μH

ENVIRONMENTAL SPECIFICATIONS

Temperature Range

Climatic Category

Sealing

Flammability

-55 °C to 155 °C

55 / 155 / 56

Sealed container, solder immersion

IEC 60695-11-5

2 applications 30 s

separated by 60 s

DIMENSIONS

Standard Package

TO-220 insulated case

Note

• Not compatible with RoHS reflow profile

Revision: 16-Nov-17

Document Number: 50005

1

For technical questions, contact:

sferfixedresistors@vishay.com

THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT

ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT

www.vishay.com/doc?91000

RTO 20

www.vishay.com

Vishay Sfernice

CONDITIONS

EN 60115-1

2 Pr 5 s for

R

< 2



1.6 Pr 5 s for

R



2



U

S

< 1.5

U

L

EN 60115-1/60068-2-14

5 cycles

-55 °C to +155 °C

EN 60115-1

1000 h Pr at +25 °C

EN 60115-1

56 days RH 95 %

NF EN 140 000

1000 h - 40 % Pr at +100 °C

MIL STD 202, Method 204 C Test D

MIL STD 202, Method 211 Test A1

IEC 60115-1

IEC 60068-2-27

Saw tooth: 100

g/6

ms

REQUIREMENTS

± (0.25 % + 0.005

)

PERFORMANCE

TESTS

Momentary Overload

Rapid Temperature Change

Load Life

Humidity (Steady State)

High Temperature Exposure

Vibration

Terminal Strength

Shock

± (0.5 % + 0.005

)

± (1 % + 0.005

)

± (0.5 % + 0.005

)

± (0.5 % + 0.005

)

± (0.2 % + 0.005

)

± (0.2 % + 0.005

)

± (0.5 % + 0.005

)

RESISTANCE VALUE IN RELATION TO TOLERANCE AND TCR

Resistance Values

Tolerances

Typical Temperature

Coefficient Range

(-55 °C to +155 °C)

± 900 ppm/°C



0.01



0.015

± 1 % at ± 10 %

± 700 ppm/°C

± 250 ppm/°C

± 150 ppm/°C



0.1



0.5

Note

• For very low ohmic values, TCR for information

CHOICE OF THE HEATSINK

The user must choose the board according to the working conditions of the component (power, room temperature).

Maximum working temperature must not exceed 155 °C. The dissipated power is simply calculated by the following ratio:



1



T

P =

-------------------------------------------------------------------------------------------

R

TH (j - c)

+ R

TH (c - h)

+ R

TH (h - a)

P:

T:

Expressed in W

Difference between maximum working temperature and room temperature

R

TH (j - c)

: Thermal resistance value measured between resistive layer and outer side of the resistor. It is the thermal

resistance of the component: Special Features table.

R

TH (c - h)

: Thermal resistance value measured between outer side of the resistor and upper side of the heatsink. This is the

thermal resistance of the interface (grease, thermal pad), and the quality of the fastening device.

R

th (h - a)

: Thermal resistance of the heatsink.

Example:

R

TH (c - a)

for RTO 20 power rating 10 W at ambient temperature +25 °C

Thermal resistance R

TH (j - c)

: 6.5 °C/W



Considering equation

(1)

we have:

T

= 155 °C - 25 °C = 130 °C



T

P

130

10

R

TH (j - c)

+ R

TH (c - h)

+ R

TH (h - a)

=

------

=

-------

= 13 °C/W

-

R

TH (c - h)

+ R

TH (h - a)

= 13 °C/W - 6.5 °C/W = 6.5 °C/W

Revision: 16-Nov-17

Document Number: 50005

2

For technical questions, contact:

sferfixedresistors@vishay.com

THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT

ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT

www.vishay.com/doc?91000

RTO 20

www.vishay.com

OVERLOADS

In any case the applied voltage must be lower than the

maximum overload voltage of 750 V.

The values indicated on the graph below are applicable to

resistors in air or mounted onto a heatsink.

Vishay Sfernice

POWER RATING

The temperature of the heatsink should be maintained within

the limits specified.

To improve the thermal conductivity, surfaces in contact

should be coated with a silicone grease and the torque

applied on the screw for tightening should be around 1 Nm.

Spring clip can also be used to mount the component on an

heatsink (ex: Kunze, clip KU4-498).

120

MARKING

Model, style, resistance value (in

),

tolerance (in %),

manufacturing date, Vishay Sfernice trademark.

ENERGY CURVE

100

RATED POWER IN %

100

ENERGY IN JOULES

10

75

1

50

0.1

25

0.01

0

20

40

60

80

100

120

140 155

HEATSINK TEMPERATURE IN °C

0.001

10

-7

10

-6

10

-5

10

-4

10

-3

10

-2

10

-1

OVERLOAD DURATION IN s

PACKAGING

POWER CURVE

100 000

Tube of 50 units

POWER IN W

10 000

1000

100

10

-7

10

-6

10

-5

10

-4

10

-3

10

-2

10

-1

OVERLOAD DURATION IN s

Revision: 16-Nov-17

Document Number: 50005

3

For technical questions, contact:

sferfixedresistors@vishay.com

THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT

ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT

www.vishay.com/doc?91000

RTO 20

www.vishay.com

Vishay Sfernice

U68

RESISTANCE VALUE

5%

TOLERANCE

±1%

±2%

±5%

± 10 %

xxx

CUSTOM DESIGN

Optional

on request:

special TCR,

shape etc.

TU50

PACKAGING

e3

LEAD (Pb)-FREE

ORDERING INFORMATION

RTO

MODEL

20

STYLE

F

CONNECTIONS

F:

radial leads

C:

surface mount

GLOBAL PART NUMBER INFORMATION

R

T

O

0

2

0

F

R

6

8

0

J

T

E

3

GLOBAL

MODEL

RTO

STYLE

020

DIELECTRIC

F

= radial leads

C

= surface mount

OHMIC VALUE

The first four digits are

significant figures and the last

digit specifies the number of

zeros

to follow.

R designates decimal point.

48R70

= 48.7



48701

= 48 700



10002

= 100 000



R0100

= 0.01



R6800

= 0.68



27000

= 2700



= 2.7 k

TOLERANCE

F

=1%

G

=2%

J

=5%

K

= 10 %

PACKAGING

T

= tube

Size 30 and 50:

Tube 50 pieces

Revision: 16-Nov-17

Document Number: 50005

4

For technical questions, contact:

sferfixedresistors@vishay.com

THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT

ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT

www.vishay.com/doc?91000

Legal Disclaimer Notice

www.vishay.com

Vishay

Disclaimer



ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE

RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE.

Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively,

“Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other

disclosure relating to any product.

Vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular purpose or

the continuing production of any product. To the maximum extent permitted by applicable law, Vishay disclaims (i) any and all

liability arising out of the application or use of any product, (ii) any and all liability, including without limitation special,

consequential or incidental damages, and (iii) any and all implied warranties, including warranties of fitness for particular

purpose, non-infringement and merchantability.

Statements regarding the suitability of products for certain types of applications are based on Vishay’s knowledge of

typical requirements that are often placed on Vishay products in generic applications. Such statements are not binding

statements about the suitability of products for a particular application. It is the customer’s responsibility to validate that a

particular product with the properties described in the product specification is suitable for use in a particular application.

Parameters provided in datasheets and / or specifications may vary in different applications and performance may vary over

time. All operating parameters, including typical parameters, must be validated for each customer application by the customer’s

technical experts. Product specifications do not expand or otherwise modify Vishay’s terms and conditions of purchase,

including but not limited to the warranty expressed therein.

Except as expressly indicated in writing, Vishay products are not designed for use in medical, life-saving, or life-sustaining

applications or for any other application in which the failure of the Vishay product could result in personal injury or death.

Customers using or selling Vishay products not expressly indicated for use in such applications do so at their own risk.

Please contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for

such applications.

No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document

or by any conduct of Vishay. Product names and markings noted herein may be trademarks of their respective owners.

Revision: 08-Feb-17

1

Document Number: 91000

Parameter Name	Attribute value
Product Attribute	Attribute Value
Manufacturer	Vishay
Product Category	Thick Film Resistors - Through Hole
RoHS	Details
Resistance	2 Ohms
Power Rating	20 W
Tolerance	5 %
Temperature Coefficient	150 PPM / C
Voltage Rating	250 V
Minimum Operating Temperature	- 55 C
Maximum Operating Temperature	+ 155 C
Length	10.1 mm
Termination Style	Radial
Packaging	Tube
Height	15 mm
Lead Diameter	0.8 mm
Lead Spacing	5.08 mm
Product	Thick Film Resistors Leaded
Type	Power Resistor, Thick Film Technology
Width	4.5 mm
Factory Pack Quantity	50
Unit Weight	0.077603 oz

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