LPSA300L48R7JB [VISHAY]

Power Resistor for Mounting Onto a Heatsink Thick Film Technology;


型号：	LPSA300L48R7JB
厂家：	VISHAY
描述：	Power Resistor for Mounting Onto a Heatsink Thick Film Technology
文件：	总6页 (文件大小：112K)
中文：	中文翻译
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LPSA 300

Vishay Sfernice

www.vishay.com

Power Resistor for Mounting Onto a Heatsink

Thick Film Technology

FEATURES

• AEC-Q200 qualified

• Compliant with requirement #26 of

NF-EN45545-2

• High power 300 W at 85 °C bottom case temperature

• Wide resistance range: 0.3 Ω to 900 kΩ

E24 series

• Non inductive

• Easy mounting

LINKS TO ADDITIONAL RESOURCES

• Low thermal radiation of the case

• Material categorization: for definitions of compliance

please see www.vishay.com/doc?99912

3D Models

LPSA is a fully AEC-Q200 qualified high power resistor. Its

high power / energy capability makes it a perfect fit for

automotive precharge and discharge applications requiring

high levels of performance.

DIMENSIONS in millimeters

25.8

LPSA 300

6K8 5 %

25.2

21.2

15.2

0.5

64.7

2 x M4 useful depth: 8

2 x Ø 4.2

Ø 20

13.6

Note

Tolerances unless stated: 0.2 mm

•

STANDARD ELECTRICAL SPECIFICATIONS

RESISTANCE

RANGE

RATED POWER

LIMITING ELEMENT

TEMPERATURE

COEFFICIENT

ꢁꢁmꢂ°C

CRITICAL

RESISTANCE

(Ω)

TOLERANCE

ꢀ

MODEL

P_{85 °C}

VOLTAGE U_L

LPSA 300

0.3 to 900K

300

1, 2, 5, 10

150, 300, 500

83.33K

Revision: 18-Jan-2021

Document Number: 50076

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

LPSA 300

Vishay Sfernice

www.vishay.com

MECHANICAL SPECIFICATIONS

TECHNICAL SPECIFICATIONS

300 W at +85 °C

bottom case temperature

Mechanical Protection

Resistive Element

Substrate

Insulated case UL 94 V-0

Power Rating and

Thermal Resistance

Thick film

Alumina

Screws M4

2 Nm

_{TH (j - c)}: 0.112 °C/W

Temꢁerature Coefficient

-55 °C ꢂ 120 °C

R ≤ 1 Ω: 500 ppm/°C

1 Ω < R ≤ 10 Ω: 300 ppm/°C

10 Ω < R: 150 ppm/°C

End Connections

Tightening Torque Connections

Tightening Torque Heatsink

Maximum Torque

Weight

Standard

IEC 60115-1

Dielectric Strength

IEC 60115-1, 1 min, 10 mA max.

2 Nm

7 kV_RMSor 12 kV_RMS

Until 12 kV

2.5 Nm

Lightning test 1.2ꢂ50 μs

IEC 61000-4-5

83 g 10 ꢀ

Insulation Resistance

Inductance

≥ 10⁴MΩ

≤ 0.1 μH

ENVIRONMENTAL SPECIFICATIONS

≤ 100 pC/7 kV

≤ 10 pC/5 kV

Other cases: Consult us

Partial Discharge

(for LPSA 300 D only)

Temꢁerature Range

-55 °C to 120 °C

Climatic Category

55/120/56

PERFORMANCE

TESTS

CONDITIONS

REQUIREMENTS

IEC 60115-1

4 x P_r/10 s

U_max.≤ U_L= 5000 V

Momentary Overload

Load Life

(0.5 ꢀ + 0.005 Ω)

IEC 60115-1

1000 h (90/30) P_rat 85 °C

(0.5 ꢀ + 0.05 Ω)

(0.5 ꢀ + 0.005 Ω)

AEC-Q200 rev. D conditions:

MIL-STD-202 method 108

1000 h, +125 °C, unpowered

High Temꢁerature Exꢁosure

Temꢁerature Cycling

Biased Humidity

AEC-Q200 rev. D conditions:

JESD22 method JA-104

1000 cycles, -55 °C to +125 °C

dwell time -15 min

(1 ꢀ + 0.005 Ω)

AEC-Q200 rev. D conditions:

MIL-STD-202 method 103

1000 h, +85 °C, 85 ꢀ RH

AEC-Q200 rev. D conditions:

MIL-STD-202 method 108

Oꢁerational Life

(1 ꢀ + 0.005 Ω)

1000 h, 90/30, powered, +25 °C

AEC-Q200 rev. D conditions:

AEC-Q200-002

ESD Human Body Model

(0.5 ꢀ + 0.005 Ω)

25 kV_AD

AEC-Q200 rev. D conditions:

MIL-STD-202 method 204

5 g for 20 min, 12 cycles

test from 10 Hz to 2000 Hz

Vibration

(0.5 ꢀ + 0.005 Ω)

AEC-Q200 rev. D conditions:

MIL-STD-202 method 213

100 g; 6 ms, 3.75 m/s

Mechanical Shock

Terminal Strength

(0.5 ꢀ + 0.005 Ω)

(0.25 ꢀ + 0.01 Ω)

3 shocks / direction

AEC-Q200 rev. D conditions:

AEC-Q200-006

2.27 kg, 60 s

Revision: 18-Jan-2021

Document Number: 50076

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

LPSA 300

Vishay Sfernice

www.vishay.com

RECOMMENDATIONS FOR MOUNTING ONTO A HEATSINK

• Surfaces in contact must be carefully cleaned

• The heatsink must have an acceptable flatness: from 0.05 mm to 0.1 mm/100 mm

• Roughness of the heatsink must be around 6.3 μm. In order to improve thermal conductivity, surfaces in contact (alumina,

heatsink) should be coated with a silicone grease (type Bluesil Past 340 from BlueStar Silicones) or a thermal film (type Q

Pad II) easier and faster to install than the grease.

• The fastening of the resistor to the heatsink is under pressure control of two screws tightened at 2 Nm for full power

availability.

LPSA 300

Tightening Torque on Heatsink

2 Nm

• The following accessories are supplied with each product:

- 2 screws CHC M4 x 25 class 8.8 and 2 M4 contact lock washers for heatsink mounting

- 2 screws TH M4 x 6/6 and 2 M4 contact lock washers for connections. 2 off CHC M4 x 16/16 class 8

CHOICE OF THE HEATSINK

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

Maximum working temperature must not exceed 120 °C. The dissipated power is simply calculated by the following ratio:

ΔT

P = -------------------------------------------------------------------------------------------

+ R

TH (j - c)

TH (c - h) TH (h - a)

Expressed in W

ΔT:

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: (see specifications environmental paragraph).

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.

Examꢁle:

R_{TH (c - a)}for LPSA 300 power dissipation 180 W at + 50 °C room temperature.

ΔT ≤ 120 °C - 50 °C = 70 °C

ΔT

180

------

R_{TH (j - c)}+ R_{TH (c - h)}+ R_{TH (h - a)}

R_{TH (j - c)}= 0.112 °C/W

= -------- = 0.388 °C/W

R_{TH (c - h)}+ R_{TH (h - a)}= 0.388 °C/W - 0.112 °C/W = 0.276 °C/W

OVERLOADS

In any case the applied voltage must be lower than U_L= 5000 V.

Short time overload: 4 x P_r/10 s

Accidental overload: The values indicated on the following graph are applicable to resistors in air or mounted onto a heatsink.

Revision: 18-Jan-2021

Document Number: 50076

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

LPSA 300

Vishay Sfernice

www.vishay.com

ENERGY CURVE

Axis Title

10 000

1000

100

10000

1000

100

0.1

0.0001

1000

0.001

0.01

0.1

100

Overload Duration (ms)

POWER CURVE

Axis Title

10 000

10000

1000

100

1000

100

1000

0.0001

0.001

0.01

0.1

100

Overload Duration (ms)

POWER RATING

The temperature of the case should be maintained within the limits specified in the following figure.

To optimize the thermal conduction, contacting surfaces should be coated with silicone grease or thermal film, and heatsink

mounting screws tightened to 2 Nm.

Axis Title

10000

100

1000

100

150

200

120

Bottom Case Temperature (°C)

Revision: 18-Jan-2021

Document Number: 50076

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

LPSA 300

Vishay Sfernice

www.vishay.com

MARKING

Series, style, ohmic value (in Ω), tolerance (in ꢀ), manufacturing date, Vishay Sfernice trademark.

PACKAGING

Box of 15 units

ORDERING INFORMATION

LPSA

300

100 kΩ

1 ꢀ

xxx

BO15

PACKAGING

MODEL

STYLE

RESISTANCE

VALUE

TOLERANCE

CUSTOMDESIGN

LEAD (Pb)-FREE

1 ꢀ

2 ꢀ

5 ꢀ

Optional

on request:

special TCR,

shape etc.

10 ꢀ

GLOBAL PART NUMBER INFORMATION

GLOBAL

MODEL

DIELECTRIC

OHMIC VALUE

TOLERANCE

PACKAGING

B = box 15 pieces

SPECIAL

LPSA 300

L = dielectric

strength 7 kV

H = dielectric

strength 12 kV

The first three digits are

significant figures and the

last digit specifies the

number of zeros to follow.

R designates decimal point.

48R7 = 48.7 Ω

F = 1 ꢀ

G = 2 ꢀ

J = 5 ꢀ

K = 10 ꢀ

As applicable

ZAx

D = partial discharge

≤ 100 pC/7 kV and

≤ 10 pC/5 kV

47R0 = 47 Ω

1001 = 1 kΩ

4R70 = 4.7 Ω

R240 = 0.24 Ω

Revision: 18-Jan-2021

Document Number: 50076

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

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Revision: 09-Jul-2021

Document Number: 91000

LPSA300L48R7JB [VISHAY]

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