RWR78N4120BPB12 datasheet, PDF

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RWR78N4120BPB12: DescriptionRESISTOR, WIRE WOUND, 10 W, 0.1 %, 20 ppm, 412 ohm, THROUGH HOLE MOUNT, AXIAL LEADED; CategoryPassive components The resistor; File Size181KB，4 Pages; ManufacturerVishay; Websitehttp://www.vishay.com

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RWR78N4120BPB12 Overview

RESISTOR, WIRE WOUND, 10 W, 0.1 %, 20 ppm, 412 ohm, THROUGH HOLE MOUNT, AXIAL LEADED

RWR78N4120BPB12 Parametric

Parameter Name	Attribute value
Is it lead-free?	Contains lead
Is it Rohs certified?	incompatible
Objectid	1671714076
package instruction	Axial,
Reach Compliance Code	compliant
ECCN code	EAR99
Other features	NON INDUCTIVE
structure	Tubular
JESD-609 code	e0
Lead diameter	1.02 mm
Lead length	38.1 mm
Installation features	THROUGH HOLE MOUNT
Number of terminals	2
Maximum operating temperature	250 °C
Minimum operating temperature	-55 °C
Package diameter	9.525 mm
Package length	45.21 mm
Package form	Axial
method of packing	BULK
Rated power dissipation(P)	10 W
Rated temperature	25 °C
Guideline	MIL-PRF-39007
resistance	412 Ω
Resistor type	FIXED RESISTOR
surface mount	NO
technology	WIRE WOUND
Temperature Coefficient	30 ppm/°C
Terminal surface	Tin/Lead (Sn60Pb40)
Terminal shape	WIRE
Tolerance	0.1%
Operating Voltage	64.1872 V

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RWR Military

www.vishay.com

Vishay Dale

Wirewound Resistors, Military/Established Reliability,

MIL-PRF-39007 Qualified, Type RWR, Up to S Level, Axial Lead

FEATURES

• High temperature silicone coated

• Complete welded construction

• Qualified to MIL-PRF-39007

• Available in non-inductive styles (type N) with

Ayrton-Perry winding for lowest reactive components

DESIGN SUPPORT TOOLS

Models

Available

click logo to get started

• “S” level failure rate available

Note

• “Terminal Wire and Winding” type “W” and “Z” are not listed

below but are available upon request. Please reference

MIL-PRF-39007 QPL for approved “failure rate” and “resistance

tolerance/ranges”

STANDARD ELECTRICAL SPECIFICATIONS

MILITARY MODEL

RWR81S

RWR81N

RWR82S

RWR82N

RWR80S

RWR80N

RWR71S

RWR71N

RWR89S

RWR89N

RWR74S

RWR74N

RWR84S

RWR84N

RWR78S

RWR78N

VISHAY REFERENCE

MODEL

EGS-1-80

EGN-1-80

EGS-2

EGN-2

EGS-3-80

EGN-3-80

ESS-2A

ESN-2A

ESS-2B

ESN-2B

ESS-5

ESN-5

EGS-10-80

EGN-10-80

ESS-10

ESN-10

POWER RATING

25 °C

1.5

RESISTANCE RANGE



± 0.1 %

0.499 to 1K

0.499 to 499

0.499 to 1.3K

0.499 to 649

0.499 to 3.16K

0.499 to 1.58K

0.499 to 12.1K

0.499 to 6.04K

0.499 to 4.12K

0.499 to 2.05K

0.499 to 12.1K

0.499 to 6.04K

0.499 to 12.4K

0.499 to 6.19K

0.499 to 39.2K

0.499 to 19.6K

RESISTANCE RANGE



± 0.5 %, ± 1 %

0.1 to 1K

0.1 to 499

0.1 to 1.3K

0.1 to 649

0.1 to 3.16K

0.1 to 1.58K

0.1 to 12.1K

0.1 to 6.04K

0.1 to 4.12K

0.1 to 2.05K

0.1 to 12.1K

0.1 to 6.04K

0.1 to 12.4K

0.1 to 6.19K

0.1 to 39.2K

0.1 to 19.6K

WEIGHT

(typical) g

0.21

0.23

0.34

0.90

0.70

4.2

3.6

9.0

Note

• RWR82S and RWR82N: Core consists of beryllium oxide ceramic

GLOBAL PART NUMBER INFORMATION

Global Part Numbering example: RWR74S49R9FSB12

MIL TYPE

(5 digits)

RWR71

RWR74

RWR78

RWR80

RWR81

RWR82

RWR84

RWR89

PACKAGING CODE

(3 digits)

B12

= bulk pack

S70

= tape/reel

(smaller than 5 W)

S73

= tape/reel

(500 pieces)

BSL

(2)

= bulk pack,

single lot date code

RSL

(2)

= tape/reel,

single lot date code

TERMINAL WIRE AND WINDING

(1 digit)

= solderable, inductive

= solderable, non-inductive

= weldable, inductive

(1)

= weldable, non-inductive

(1)

RESISTANCE VALUE

(4 digits)

3 digit significant figure,

followed by a multiplier

49R9

= 49.9



1000

= 100



1001

= 1000



TOLERANCE CODE

(1 digit)

= ± 0.1 %

= ± 0.5 %

= ± 1.0 %

FAILURE RATE

(1 digit)

= 1.0 %/1000 h

= 0.1 %/1000 h

= 0.01 %/1000 h

= 0.001 %/1000 h

Notes

Note that “W” and “Z” are not listed above but are available, see MIL-PRF-39007 QPL for available resistance values

(2)

Maximum order sizes apply for single lot date code package codes, please see table below

(1)

Revision: 15-Nov-17

Document Number: 30203

For technical questions, contact:

ww2aresistors@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

Document Number: 91000

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