UALN-25806OHM0.25% datasheet, PDF

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UALN-25806OHM0.25%: DescriptionFixed Resistor, Wire Wound, 12W, 806ohm, 0.25% +/-Tol, -20,20ppm/Cel,; CategoryPassive components The resistor; File Size454KB，5 Pages; ManufacturerVishay; Websitehttp://www.vishay.com; Environmental Compliance

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UALN-25806OHM0.25% Overview

Fixed Resistor, Wire Wound, 12W, 806ohm, 0.25% +/-Tol, -20,20ppm/Cel,

UALN-25806OHM0.25% Parametric

Parameter Name	Attribute value
Is it Rohs certified?	conform to
Objectid	857525205
Reach Compliance Code	compliant
ECCN code	EAR99
structure	All-Welded
Number of terminals	2
Maximum operating temperature	275 °C
Minimum operating temperature	-55 °C
Package height	14.2 mm
Package length	27 mm
Package form	Chassis Mount
Package width	27.4 mm
Rated power dissipation(P)	12 W
resistance	806 Ω
Resistor type	FIXED RESISTOR
series	UAL
technology	WIRE WOUND
Temperature Coefficient	20 ppm/°C
Tolerance	0.25%

UALN-25806OHM0.25% Preview

UAL Series

FEATURES

•

Power Rating 5 to 300Watts

All Welded Construction

Resistances from 0.005 to 250kOhms

Tolerance to ±0.01%

High Overload and Pulse Handling

Low TCR: ± 20ppm/K Standard

Four Terminal Versions Available

TABLE 1—SPECIFICATIONS

Tolerances

Temperature Coefficient

±0.01% to ±10% ( 1% Standard )

>10W : ±20ppm/K

1W to10W : ±50ppm/K

<1W : Call Factory

-55°C to +275°C

UAL 5,10:

UAL 25:

UAL 50:

UAL 100,300:

1500 VAC

2500 VAC

3500 VAC

5500 VAC

Temperature Range

Dielectric Strength

Constuction

Centerless ground ceramic core

Tinned copper or copperweld leads

High-temperature epoxy molding Compound

Anodized aluminum housing

All welded terminations

Environmental Performance

(MIL-STD 202)

±0.2% + 0.05W

±1% + 0.05W

±0.2% + 0.05W

±0.1% + 0.05W

Dielectric

Load Life

Storage

Moisture Resistance

Thermal Shock

5X Overload ( 5s )

Shock

Vibration

ORDERING INFORMATION

Part Number - Resistance - Tolerance - TCR ( If not standard )

UAL-25 10 Ohm 1%

For Non-Inductive Windings / insert the letter “N” ( i.e. UALN-25 )

Document No.: 64325

Revision: 31-01-2015

For technical questions,

contact

powertron@vpgsensors.com

www.powertron.de

UAL Series

TABLE 1—SPECIFICATIONS (continued)

Type

UAL-5

UAL-10

UAL-25

UAL-50

UAL-100

UAL-180

UAL-250

UAL-300

MIL-R-39009

MIL-R-18546

Style

Power Rating ( W @ 25°C )

Commercial

7.5

12.5

100

180

250

300

MIL

120

Free Air

4.5

7.5

100

Resistance

Range

0.01 to 22K

0.01 to 47K

0.01 to 90K

0.01 to 250K

0.01 to 50K

0.005 to 100K

RER-60 / RE-60

RER-65 / RE-65

RER-70 / RE-70

RER-75 / RE-75

RER-77 / RE-77

RER-80 / RE-80

For non-inductive windings, divide maximum resistance by 2

Heatsink Required : 0.040 [1.0] Alum. Plate, 129 in

[832 cm

] or equiv.

Heatsink Required : 0.040 [1.0] Alum. Plate, 167 in

[1077 cm

] or equiv.

Heatsink Required : 0.059 [1.5] Alum. Plate, 291 in

[1877 cm

] or equiv.

Heatsink Required : 0.125 [3.2] Alum. Plate, 294 in

[1896 cm

] or equiv.

Heatsink Required : 0.125 [3.2] Alum. Plate, 895 in

[5780 cm

] or equiv.

FIGURE 1—DERATING

120

100

nte

Power ( % )

tsi

Free-air Derating

A : UAL-5, UAL-10

B : UAL-25

C : UAL-50, UAL-100, UAL-250

D : UAL-300

100

150

200

250

300

350

Ambient Temperature (°C)

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For technical questions,

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Document No.: 64325

Revision: 31-01-2015

UAL Series

FIGURE 2—DIMENSIONS

Type

UAL-5

UAL-10

UAL-25

UAL-50

±0.005

[±0.13]

0.444

[11.3]

0.562

[14.3]

0.719

[18.3]

1.563

[39.7]

±0.005

[±0.13]

0.490

[12.4]

0.625

[15.9]

0.781

[19.8]

0.844

[21.4]

±0.031

[±0.8]

0.600

[15.2]

0.750

[19.1]

1.870

[47.5]

1.968

[50.0]

±0.062

[±1.6]

1.125

[28.5]

1.375

[35.0]

1.938

[49.2]

2.781

[70.6]

±0.015

[±0.4]

0.334

[8.5]

0.430

[10.9]

0.530

[13.5]

0.615

[15.6]

±0.015

[±0.4]

0.646

[16.4]

0.800

[20.3]

1.080

[27.4]

1.140

[29.0]

±0.015

[±0.4]

0.320

[8.1]

0.400

[10.2]

0.560

[14.2]

0.615

[15.6]

±0.010

[±0.25]

0.065

[1.7]

0.075

[1.9]

0.085

[2.2]

0.085

[2.2]

±0.010

[±0.25]

0.140

[3.6]

0.190

[4.8]

0.260

[6.6]

0.300

[7.6]

±0.010

[±0.25]

0.078

[2.0]

0.093

[2.4]

0.172

[4.4]

0.196

[5.0]

±0.005

[±0.13]

0.093

[2.4]

0.093

[2.4]

0.125

[3.2]

0.125

[3.2]

±0.015

[±0.4]

0.078

[2.0]

0.102

[2.6]

0.125

[3.2]

0.125

[3.2]

±0.005

[±0.13]

0.050

[1.3]

0.080

[2.0]

0.086

[2.2]

0.086

[2.2]

±0.062

[±1.6]

0.266

[6.8]

0.312

[7.9]

0.438

[11.1]

0.438

[11.1]

±0.031

[±0.8]

0.245

[6.2]

0.312

[7.9]

0.391

[9.9]

0.422

[10.7]

±0.002

[±0.05]

0.051

[1.30]

0.098

[2.49]

0.098

[2.49]

0.098

[2.49]

±0.031

[±0.8]

0.085

[2.2]

0.160

[4.0]

0.185

[4.7]

0.185

[4.7]

Type

UAL-

100

UAL-

180

UAL-

250

±0.005

[±0.13]

2.750

[69.9]

2.750

[69.9]

3.875

[98.4]

±0.005

[±0.13]

±0.005

[±0.13]

2.250

[57.2]

2.500

[63.5]

2.500

[63.5]

±0.031

[±0.8]

3.500

[88.9]

3.500

[88.9]

4.500

[114]

±0.062

[±1.6]

5.480

[139]

5.480

[139]

7.000

[178]

±0.015

[±0.4]

1.800

[45.7]

2.125

[54.0]

2.125

[54.0]

±0.015

[±0.4]

2.810

[71.4]

3.000

[76.2]

3.00

[76.2]

±0.015

[±0.4]

1.750

[44.5]

2.190

[55.6]

2.190

[55.6]

±0.010

[±0.25]

0.188

[4.8]

0.250

[6.4]

0.250

[6.4]

±0.015

[±0.4]

0.800

[20.3]

0.950

[24.1]

1.000

[25.4]

±0.015

[±0.4]

0.375

[9.5]

0.375

[9.5]

0.312

[7.9]

±0.005

[±0.13]

0.188

[4.8]

0.188

[4.8]

0.188

[4.8]

±0.015

[±0.4]

0.225

[5.7]

0.200

[5.1]

0.200

[5.1]

±0.015

[±0.4]

Mtg.

Screw

12-24

(2) #8

12-24

(2) #8

3.000

[76.2]

1/4-20

1.188

[30.7]

(4) #8

Document No.: 64325

Revision: 31-01-2015

For technical questions,

contact

powertron@vpgsensors.com

www.powertron.de

UAL Series

FIGURE 2—DIMENSIONS (continued)

Type

UAL-300

MAX

±0.010

[±0.3]

±0.010

[±0.3]

MAX

±0.010

[±0.3]

MAX

±0.010

[±0.3]

2.854

[72.5]

7.260

[184.4]

1.646

[41.8]

1.791

[45.5]

5.028

[127.7]

4.094

[104.0]

2.323

[59.0]

0.807

[20.5]

0.488

[12.4]

0.217

[5.5]

0.260

[6.6]

5.567

[141.4]

2.047

[52.0]

www.powertron.de

For technical questions,

contact

powertron@vpgsensors.com

Document No.: 64325

Revision: 31-01-2015

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

expressly indicated. Customers using or selling VPG products not expressly indicated for use in such applications do

so entirely at their own risk and agree to fully indemnify VPG for any damages arising or resulting from such use or sale.

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

applications.

Product names and markings noted herein may be trademarks of their respective owners.

Document No.: 63999

Revision: 15-Jul-2014

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