LTO150F3R000JTE3 - VISHAY - Datasheet.Directory

LTO 150

www.vishay.com Vishay Sfernice

Revision: 15-Feb-18 1Document Number: 50071

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

Clip Mount Power Resistor Thick Film Technology

LTO150 are the extension of LTO series. The component is

used in direct contact with heatsink. Fixation done by clip.

FEATURES

• 150 W at 45 °C case temperature heatsink

mounted

• Direct mounting ceramic on heatsink

• Broad resistance range: 0.03  to 1.3 M

• Non inductive

• TO-247 package: compact and easy to mount

• Designed for clip mounting

• UL 94 V-0 material used - Compliant with EN45545-2

•AEC-Q200 qualified

• Material categorization: for definitions of compliance

please see www.vishay.com/doc?99912

Note

• Tolerances unless stated: ± 0.3 mm

DIMENSIONS in millimeters

STANDARD ELECTRICAL SPECIFICATIONS

MODEL SIZE

RESISTANCE

RANGE



RATED POWER

P25 °C

LIMITING ELEMENT

VOLTAGE UL

TOLERANCE

± %

TEMPERATURE

COEFFICIENT

± ppm/°C

CRITICAL

RESISTANCE



LTO 150 TO-247 0.03 to 1.3M 150 500 1, 2, 5, 10 200, 350, 900 1.66K

14.5

10.16

3.5

20.7

3.6

15.76

5.33

0.3

0.6

2.4

10.5

MECHANICAL SPECIFICATIONS

Mechanical Protection Molded

Resistive Element Thick film

Substrate Alumina

Connections Tinned copper

Weight 4 g max.

Clip Assembly Force 60 N to 110 N

ENVIRONMENTAL SPECIFICATIONS

Temperature Range -55 °C to +175 °C

Climatic Category 55 / 175 / 56

Flammability IEC 60695-11-5

2 applications 30 s

separated by 60 s

TECHNICAL SPECIFICATIONS

Dissipation and Associated Onto a heatsink + clip

Power Rating and 

Thermal Resistance 

of the Component

150 W at +45 °C (case temp.)

RTH (j - c): 0.87 °C/W

Free air: 4.5 W at +25 °C

Temperature Coefficient See Performance table

± 200 ppm/°C

Dielectric Strength 

IEC 60115-1

3000 VRMS - 1 min

10 mA max.

Insulation Resistance  104 M

Inductance  0.1 μH

LTO 150

www.vishay.com Vishay Sfernice

Revision: 15-Feb-18 2Document Number: 50071

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

CHOICE OF THE HEATSINK

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

Maximum working temperature must not exceed 175 °C. The dissipated power is simply calculated by the following ratio:

P: Expressed in W

T: Difference between maximum working temperature and room temperature 

RTH (j - c): Thermal resistance value measured between resistive layer and outer side of the resistor. It is the thermal resistance of the 

component.

RTH (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.

RTH (h - a): Thermal resistance of the heatsink

Example: 

RTH (c - h) + RTH (h - a) for LTO 150 power rating 10 W at ambient temperature +25 °C

Thermal resistance RTH (j - c): 0.87 °C/W 

Considering equation (1) we have:

T = 175 °C - 25 °C = 150 °C 

RTH (j - c) + RTH (c - h) + RTH (h - a) = = = 15 °C/W

RTH (c - h) + RTH (h - a) = 15 °C/W - 0.87 °C/W = 14.13 °C/W

Example with a thermal grease RTH (c - h) = 0.5 °C/W, we need a heatsink with RTH (h - a) = 13.63 °C/W

PERFORMANCE

TESTS CONDITIONS REQUIREMENTS

Momentary Overload

IEC 60115-1

1.5 Pr/5 s

US < 1.5 UL

± (0.5 % + 0.005 )

Load Life IEC 60115-1

1000 h Pr (free air) at +25 °C 90/30 ± (1 % + 0.005 )

High Temperature Exposure

AEC-Q200 REV D conditions:

MIL-STD-202 method 108

1000 h, +175 °C, unpowered

± (0.5 % + 0.005 )

Temperature Cycling

AEC-Q200 REV D conditions:

JESD22 method JA-104

1000 cycles, -55 °C to +125 °C

dwell time -15 min

± (1 % + 0.005 )

Biased Humidity

AEC-Q200 REV D conditions:

MIL-STD-202 method 103

1000 h, 85 °C, 85 % RH (10 % of free air power)

± (1 % +0.005 )

Operational Life

AEC-Q200 REV D conditions:

MIL-STD-202 method 108

1000 h, 90/30, powered (free air) at +125 °C

± (1 % +0.005 )

ESD Human Body Model

AEC-Q200 REV D conditions:

AEC-Q200-002 IEC 61000-4-2

25 kVAD

± (0.5 % +0.005 )

Vibration

AEC-Q200 REV D conditions:

MIL-STD-202 method 204

5 g’s for 20 min, 12 cycles

test from 10 Hz to 2000 Hz

± (0.5 % +0.005 )

Mechanical Shock

AEC-Q200 REV D conditions:

MIL-STD-202 method 213

100 g’s, 6 ms, 3.75 m/s

3 shocks/direction

± (0.5 % +0.005 )

Terminal Strength

AEC-Q200 REV D conditions:

AEC-Q200-006

2 kgf, 60 sec

± (0.25 % +0.01 )

SPECIAL FEATURES

Resistance Values  0.015  0.1 > 20

Tolerances ± 1 % at ± 10 %

Typical Temperature Coefficient

(-55 ° to +175 °C) ± 900 ppm/°C ± 350 ppm/°C ± 200 ppm/°C

P = T

RTH (j - c)

RTH (c - h)

RTH (h - a)

++

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

1

T

-------

150

-----------

LTO 150

www.vishay.com Vishay Sfernice

Revision: 15-Feb-18 3Document Number: 50071

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

CONFIGURATION 1: Water cooling heatsink CP15 from Lytron (304 mm x 95.3 mm x 8 mm) with water flow rate 4 LPM and

thermal grease Bluesil Past 340 from BlueStar silicones. MAX08NG from AAVID screwed clip mounting.

CONFIGURATION 2: Air cooling heatsink 0S552 from AAVID (48 mm x 80 mm x 70 mm) and thermal grease Bluesil Past 340

from BlueStar silicones. MAX03HNG from AAVID clipped mounting.

CONFIGURATION 3: Air cooling heatsink 0S550 from AAVID (31.75 mm x 58.7 mm x 70 mm) and thermal grease Bluesil Past

340 from BlueStar silicones. MAX03HNG from AAVID clipped mounting.

MOMENTARY OVERLOAD

In any case the applied voltage must be lower than the

maximum overload voltage of 750 V during 5 s.

ENERGY CURVE (SINGLE PULSE)

The values indicated on the graph below are applicable to

resistors in air or mounted onto a heatsink.

POWER CURVE

POWER RATING

The temperature of the case should be maintained within the

limits specified.

MARKING

Model, style, resistance value (in ), tolerance (in %),

manufacturing date, Vishay Sfernice trademark according

IEC 60062.

CONFIGURATION 1 CONFIGURATION 2 CONFIGURATION 3

Power Dissipation (W) 150 35 26

T° Resistive Element (°C) 175 175 175

RTH (j - c) Max. (°C/W) 0.87 0.87 0.87

RTH (c - h) Typ. (°C/W) 0.127 0.33 0.33

RTH (h - a) Max. (°C/W) 0.069 3.09 4.57

Fluid T° (°C) 15 (water) 25 (air) 25 (air)

0.01

0.1

100

ENERGY IN JOULES

OVERLOAD DURATION IN s

10-7 10-6 10-5 10-4 10-3 10-2 10-1 100

100

1000

10 000

100 000

1 000 000

POWER IN W

OVERLOAD DURATION IN s

10-7 10-6 10-5 10-4 10-3 10-2 10-1 100

PACKAGING

Tube of 30 units

0 20 40 60 80 100 120 140 160 175

100

125

RATED POWER IN %

CASE TEMPERATURE IN °C

LTO 150

www.vishay.com Vishay Sfernice

Revision: 15-Feb-18 4Document Number: 50071

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

CLIPS

CLIP MOUNTING RECOMMENDATION

To improve the thermal conductivity, all surface of ceramic has to be coated with a thermal silicon grease. If you not use our

clipped or screwed clip, it is recommended that a mounting force of 60 N to 110 N be applied to the center of the molding case

of the component. Tightening torque 2 Nm when mounting screwed clip MAX08NG on heatsink.

ACCRFLTO150CL (MAX03HNG) ACCRFLTO150VS (MAX08NG)

ORDERING INFORMATION

LTO 150 F 2.7 k± 1 % xxx TU30 e3

MODEL STYLE CONNECTIONS RESISTANCE VALUE TOLERANCE

± 1 %

± 2 %

± 5 %

± 10 %

CUSTOM DESIGN

Optional

on request:

special TCR,

shape etc.

PACKAGING LEAD (Pb)-FREE

GLOBAL PART NUMBER INFORMATION

GLOBAL

MODEL SIZE LEADS OHMIC VALUE TOLERANCE PACKAGING LEAD (Pb)-FREE

LTO 150 F = radial leads 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 

R4700 = 0.47 

27000 = 2700  = 2.7 k

F = 1 %

G = 2 %

J = 5 %

K = 10 %

T = tube

Tube 30 pieces

E3 = pure tin

CLIP PART NUMBER INFORMATION

REFERENCE PART NUMBER FOR ORDERING

Screwed clip MAX08NG ACCRFLTO150VS

Clipped clip MAX03HNG ACCRFLTO150CL

21.5

9.3

0.6

30.55

Ø 4.2

5.9

0.6

14.7

23.5

150F270 0 T 3T OL 0JE