MR300 Series
www.vishay.com
Vishay Mills
Wirewound Resistor, Ultra Precision, High Stability,
Epoxy Molded, Axial Lead
FEATURES
•
•
•
•
•
•
Stability of ± 20 ppm/year
Resistance values up to 6 M
Resistance tolerances down to ± 0.005 %
Tighter tolerances and lower resistance values
available, please contact factory
Temperature coefficients down to ± 2 ppm/°C,
and up to 6000 ppm/°C
Matched resistance sets available in tolerances
down to ± 0.001 %, and in temperature
coefficients down to ± 0.5 ppm/°C, please
contact factory
Custom design capability available, please
contact factory
Material categorization: for definitions of compliance
please see
www.vishay.com/doc?99912
•
•
STANDARD ELECTRICAL SPECIFICATIONS
GLOBAL
MODEL
POWER
RATING
W
(1)
RESISTANCE RANGE RESISTANCE RANGE RESISTANCE RANGE
RESISTANCE RANGE
MAXIMUM
WORKING
± 0.1 %, ± 0.25 %,
± 0.05 %, ± 0.1 %,
± 0.01 %, ± 0.05 %,
± 0.005 %, ± 0.01 %,
VOLTAGE
± 0.5 %, ± 1 %
± 0.25 %, ± 0.5 %, ± 1 %
± 0.1 %, ± 0.25 %,
± 0.05 %, ± 0.1 %,
V
(2)
± 0.5 %, ± 1 %
± 0.25 %, ± 0.5 %, ± 1 %
1 to 400K
5 to 400K
50 to 400K
1K to 400K
150
1 to 750K
5 to 750K
50 to 750K
1K to 750K
200
1 to 750K
5 to 750K
50 to 750K
1K to 750K
200
1 to 500K
5 to 500K
50 to 500K
1K to 500K
100
1 to 1.0M
5 to 1.0M
50 to 1.0M
1K to 1.0M
200
1 to 1.2M
5 to 1.2M
50 to 1.2M
1K to 1.2M
300
1 to 2.5M
5 to 2.5M
50 to 2.5M
1K to 2.5M
400
1 to 3.8M
5 to 3.8M
50 to 3.8M
1K to 3.8M
300
1 to 3.8 M
5 to 3.8 M
50 to 3.8 M
1K to 3.8 M
400
1 to 3.8M
5 to 3.8M
50 to 3.8M
1K to 3.8M
400
1 to 6.0M
5 to 6.0M
50 to 6.0M
1K to 6.0M
600
1 to 6.0M
5 to 6.0M
50 to 6.0M
1K to 6.0M
800
1 to 6.0M
5 to 6.0M
50 to 6.0M
1K to 6.0M
900
1 to 6.0M
5 to 6.0M
50 to 6.0M
1K to 6.0M
1000
MR301
0.120
MR302
0.175
MR303
0.200
MR304
0.150
MR305
0.200
MR306
0.250
MR307
0.330
MR308
0.400
MR310
0.500
MR311
0.500
MR312
0.750
MR314
1.000
MR315
1.500
MR316
2.000
Notes
(1)
Power rating is based on tolerance, please see derating chart.
(2)
The maximum working voltage is the highest voltage that can be applied to the resistor. Below this value, the maximum voltage that can
continuously be applied is given by (P x
R)
1/2
.
GLOBAL PART NUMBER INFORMATION
Global Part Numbering example: MR30615K000QAE66
(visit
www.vishay.net
SAP parts manual for all options)
M
R
3
0
6
1
VALUE
(6 digits)
5
K
0
0
0
TC
(1 digits)
Q
A
E
6
6
SPECIAL
(up to 2 digits)
(dash
number)
from
1
to
99
as applicable
S
= 0.025"
terminal
GLOBAL MODEL
(5 digits)
(see Standard Electrical
Specifications Global
Model column
for options)
TOLERANCE
(1 digit)
S
= ± 0.005 %
T
= ± 0.01 %
Q
= ± 0.02 %
A
= ± 0.05 %
B
= ± 0.1 %
C
= ± 0.25 %
D
= ± 0.5 %
F
= ± 1.0 %
PACKAGING CODE
(3 digits)
E66
= lead (Pb)-free
bulk pack
R
= decimal
K
= thousand
M
= million
1R5000
= 1.5
1K5000
= 1.5 k
1M0000
= 1 M
A
= standard,
10 to 30 (W)
B
= 3900 (Q)
C
= 4500 (M)
D
= 6000 (N)
E
= 3500 (P)
Y
= 10 ( 1
)
G
= 5 ( 10
)
J
= 2 ( 100
)
15 k
Historical Part Number example: MR306W15K0Q
MR306
HISTORICAL MODEL
Revision: 03-Jun-16
W = STANDARD
TC
0.02 %
TOLERANCE
RESISTANCE VALUE
Document Number: 31815
1
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
MR300 Series
www.vishay.com
DIMENSIONS
in inches [millimeters]
L
LD
Vishay Mills
D
MODEL
MR301
MR302
MR303
MR304
MR305
MR306
MR307
MR308
MR310
MR311
MR312
MR314
MR315
MR316
DIMENSIONS
in inches [millimeters]
L ± 0.025 [0.635]
0.250 [6.35]
0.375 [9.52]
0.450 [11.43]
0.250 [6.35]
0.375 [9.52]
0.500 [12.70]
0.750 [19.05]
0.500 [12.70]
0.750 [19.05]
0.750 [19.05]
1.000 [25.40]
1.000 [25.40]
1.500 [38.10]
2.000 [50.80]
D ± 0.005 [0.127]
0.187 [4.75]
0.187 [4.75]
0.187 [4.75]
0.250 [6.35]
0.250 [6.35]
0.250 [6.35]
0.250 [6.35]
0.375 [9.52]
0.375 [9.52]
0.375 [9.52]
0.375 [9.52]
0.500 [12.70]
0.500 [12.70]
0.500 [12.70]
LD ± 0.002 [0.051]
0.025 [0.635]
0.025 [0.635]
0.025 [0.635]
0.025 [0.635]
0.032 [0.813]
(1)
0.032 [0.813]
(1)
0.032 [0.813]
(1)
0.032 [0.813]
0.032 [0.813]
0.032 [0.813]
0.032 [0.813]
0.032 [0.813]
0.032 [0.813]
0.032 [0.813]
Note
(1)
0.025" [0.635] available, this is called out by putting an “S” in the SPECIAL section of the part number.
MATERIAL SPECIFICATIONS
Element:
nickel-chrome alloy, other materials available
depending on TC requirements
Core:
molded epoxy
Encapsulant:
epoxy
Standard Terminals:
100 % matte tinned copper
Part Marking:
MILLS, model, value, tolerance, date code
Note
• Due to resistor size limitations some resistors will have minimal
information marked on parts.
DERATING
RATED POWER IN %
180
160
140
120
100
80
60
40
20
0
0
20
40
60
80
100
120
140
160
1 %,
0.05 %
0.5 %
, 0.1
, 0.02 %
% To
e
Toleran
c
leran
ce
0.01 %
Toleran
c
e
0.005 % Toleranc
e
AMBIENT TEMPERATURE IN °C
TECHNICAL SPECIFICATIONS
PARAMETER
Temperature Coefficient
Terminal Strength
Dielectric Withstanding Voltage
Operating Temperature Range
UNIT
ppm/°C
lb
V
AC
°C
MR300 RESISTOR CHARACTERISTICS
± 10 for > 100
;
± 20 for 10
to 100
;
± 30 for < 10
4.5
750
-55 to +145 (see derating chart)
Revision: 03-Jun-16
Document Number: 31815
2
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
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No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document
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Revision: 13-Jun-16
1
Document Number: 91000
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