FHR4-38250R145F0.25%R datasheet, PDF

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FHR4-38250R145F0.25%R: DescriptionFixed Resistor, 3W, 0.145ohm, 0.25% +/-Tol, 50ppm/Cel, Chassis Mount, RADIAL LEADED; CategoryPassive components The resistor; File Size342KB，4 Pages; ManufacturerVishay; Websitehttp://www.vishay.com; Environmental Compliance

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FHR4-38250R145F0.25%R Overview

Fixed Resistor, 3W, 0.145ohm, 0.25% +/-Tol, 50ppm/Cel, Chassis Mount, RADIAL LEADED

FHR4-38250R145F0.25%R Parametric

Parameter Name	Attribute value
Is it Rohs certified?	conform to
Objectid	145059395338
package instruction	RADIAL LEADED
Reach Compliance Code	compliant
Country Of Origin	Israel
ECCN code	EAR99
YTEOL	10
Other features	FREE AIR POWER: 3W
structure	Rectangular
JESD-609 code	e3
Installation features	CHASSIS MOUNT
Number of terminals	4
Maximum operating temperature	130 °C
Minimum operating temperature	-40 °C
Package height	24 mm
Package length	38 mm
Package form	SIP
Package width	6 mm
Rated power dissipation(P)	50 W
Rated temperature	70 °C
resistance	0.145 Ω
Resistor type	FIXED RESISTOR
surface mount	NO
Temperature Coefficient	50 ppm/°C
Terminal surface	Tin (Sn)
Terminal shape	LUG
Tolerance	0.25%

FHR4-38250R145F0.25%R Preview

FHR 4-3825 3825H 4618

FEATURES

•

Resistances from 0.001

to 100

Power Rating to 50 Watt

Resistance Tolerances to ±0.1%

TCR to ±10 ppm/K

Very Low Inductance

Load Stability to 0.1%

TABLE 1—SPECIFICATIONS

TYPE

Resistance Range

Power Rating

Tolerances

from 0R001

Thermal Resistance

Stability (1000h)

Temperature Coefficient

Standard (Q)

Option R - Extended Temperature Range

Option N

Voltage Proof

Maximum Current

Thermal EMF

Operating Temperature Range

Resistor Material

Substrate

Housing

Connector Material

Terminals

Max. Torque

Free air 70°C

With heatsink

3W / 5W for 3825H

50W

0.1% / 0.25% / 0.5% / 1% / 2% / 5%

1.6 K/W

0.1% / 0.2% / 0.5%

(depends on stress)

±25ppm/K (20 to 60°C)

±50ppm/K (-40 to 130°C)

±10ppm/K (20 to 60°C)

500 VDC

150 A / 200 A for contact F

< 1µV/K

-40 to 130 °C

CuNiMn-Foil

Anodized aluminium

Epoxy

Cu / tinned

1 Nm

FHR 4-3825

FHR 4-3825H

FHR 4-4618

0.001 to 100 Ohms

ORDERING INFORMATION

Part Number - Resistance - Contact - Tolerance - TCR

FHR 4-4618 0R050 F 1% Q

FHR 4-3825H 1R140 A 0.1% N

Document No.: 64237

Revision: 21-12-2016

For technical questions,

contact

powertron@vpgsensors.com

www.powertron.de

FHR 4-3825 3825H 4618

FIGURE 1—TEMPERATURE COEFFICIENT

2000

Limit 2

-2000

∆R/R

(ppm)

-4000

Nominal

∆R/R

-6000

-8000

Limit 1

-10000

-40

-20

100

120

140

Temperature (°C)

FIGURE 2—DERATING

Power Rating Notes -

120

Power ( % from

nominal power)

100

0.5%

0.2%

0.1%

The FHR Series Resistors must be attached to a suitable heat-

sink. The maximum internal resistor temperature is 130°C.

To specify an appropriate heatsink use the following formula :

= T

MAX

- ( P x R

) - T

100

115

130

Where:

Temperature of the backplate (°C)

= Thermal Resistance of Heatsink ( K/W )

= Thermal Resistance of Resistor ( K/W )

MAX

= Maximum Temperature of Resistor

= Ambient Temperature of Heatsink ( °C )

P = Power Through Resistor ( W )

FIGURE 3—DIMENSIONS

in mm (inches)

Dimension

A-contact

K-contact

±0.2 (±0.008)

±0.3 (±0.012)

±0.1 (±0.004)

±0.2 (±0.008)

±0.1 (±0.004)

±0.2 (±0.008)

±0.1 (±0.004)

±0.2 (±0.008)

±0.4 (±0.016)

±0.2 (±0.008)

±0.3 (±0.012)

R > 0R001

R ≤ 0R001

R > 0R001

R ≤ 0R001

Standard

Variant H

FHR 4-3825 / FHR 4-3825H

24.00 (0.94)

38.00 (1.50)

1.40 (0.06)

4.00 (0.16)

17.50 (0.69)

1.5x45° (0.06x45°)

27.50 (1.08)

17.50 (0.69)

1.50 (0.06)

1.10 (0.04)

3.00 (0.12)

3.20 (0.13)

2.00 (0.08)

6.00 (0.24)

10.80 (0.43)

30.40 (1.20)

15.00 (0.59)

3.60 (0.14)

4.10 (0.16)

2.80 (0.11)

3.30 (0.13)

19.00 (0.75)

3.30 (0.13)

----

±0.3 (±0.012)

±0.2 (±0.008)

www.powertron.de

For technical questions,

contact

powertron@vpgsensors.com

Document No.: 64237

Revision: 21-12-2016

FHR 4-3825 3825H 4618

FIGURE 3—DIMENSIONS

in mm (inches)

FHR 4-3825 F-contact

Dimension

±0.2 (±0.008)

±0.3 (±0.012)

±0.2 (±0.008)

±0.1 (±0.004)

±0.3 (±0.012)

±0.2 (±0.008)

±0.1 (±0.004)

±0.2 (±0.008)

±0.1 (±0.004)

±0.2 (±0.008)

±0.7 (±0.028)

24.00 (0.94)

38.00 (1.50)

1.50 (0.06)

4.00 (0.16)

34.00 (1.34)

17.50 (0.69)

1.5x45° (0.06x45°)

34.00 (1.34)

32.70 (1.29)

7.50 (0.30)

24.00 (0.94)

6.30 (0.25)

4.80 (0.19)

3.20 (0.13)

2.00 (0.08)

6.00 (0.24)

15.00 (0.59)

4.10 (0.16)

3.30 (0.13)

FHR 4-4618

Dimension

±0.1 (±0.004)

±0.3 (±0.012)

±0.4 (±0.016)

±0.2 (±0.008)

±0.3 (±0.012)

±0.1 (±0.004)

±0.2 (±0.008)

±0.1 (±0.004)

±0.2 (±0.008)

±0.4 (±0.016)

±0.2 (±0.008)

±0.3 (±0.012)

A-contact

K-contact

17.00 (0.67)

46.00 (1.81)

1.40 (0.06)

8.50 (0.33)

40.00 (1.57)

34.00 (1.34)

1.5x45° (0.06x45°)

17.50 (0.69)

27.50 (1.08)

1.50 (0.06)

1.10 (0.04)

3.00 (0.12)

3.20 (0.13)

2.00 (0.08)

max.5.5 (0.22)

23.40 (0.92)

15.00 (0.59)

3.60 (0.14)

3.30 (0.13)

2.80 (0.11)

Document No.: 64237

Revision: 21-12-2016

For technical questions,

contact

powertron@vpgsensors.com

www.powertron.de

Legal Disclaimer Notice

Vishay Precision Group, Inc.

Disclaimer

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

Vishay Precision Group, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf

(collectively, “VPG”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein or in

any other disclosure relating to any product.

The product specifications do not expand or otherwise modify VPG’s terms and conditions of purchase, including but

not limited to, the warranty expressed therein.

VPG makes no warranty, representation or guarantee other than as set forth in the terms and conditions of purchase.

To the maximum extent permitted by applicable law, VPG 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.

Information provided in datasheets and/or specifications may vary from actual results in different applications and

performance may vary over time. Statements regarding the suitability of products for certain types of applications

are based on VPG’s knowledge of typical requirements that are often placed on VPG products. 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. You should ensure you have the current version of the relevant information by contacting

VPG prior to performing installation or use of the product, such as on our website at vpgsensors.com.

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

conduct of VPG.

The products shown herein are not designed for use in life-saving or life-sustaining applications unless otherwise

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Document No.: 63999

Revision: 15-Jul-2014

www.vpgsensors.com

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