MR93 Series
www.vishay.com
Vishay Mills
Wirewound Resistor, Ultra Precision,
Epoxy Molded, Axial Lead
FEATURES
• 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
MR9352
MR9353
MR9354
MR9355
MR9356
MR9357
MR9358
MR9359
POWER
RATING
W
(1)
0.750
0.500
0.330
0.250
0.200
1.000
1.500
2.000
RESISTANCE RANGE
± 0.1 %, ± 0.25 %,
± 0.5 %, ± 1 %
1 to 6.0M
1 to 3.8M
1 to 2.5M
1 to 1.2M
1 to 1.0M
1 to 6.0M
1 to 6.0M
1 to 6.0M
RESISTANCE RANGE
± 0.05 %, ± 0.1 %,
± 0.25 %, ± 0.5 %, ± 1 %
5 to 6.0M
5 to 3.8M
5 to 2.5M
5 to 1.2M
5 to 1.0M
5 to 6.0M
5 to 6.0M
5 to 6.0M
RESISTANCE RANGE
± 0.01 %, ± 0.05 %,
± 0.1 %, ± 0.25 %,
± 0.5 %, ± 1 %
50 to 6.0M
50 to 3.8M
50 to 2.5M
50 to 1.2M
50 to 1.0M
50 to 6.0M
50 to 6.0M
50 to 6.0M
RESISTANCE RANGE
± 0.005 %, ± 0.01 %,
± 0.05 %, ± 0.1 %,
± 0.25 %, ± 0.5 %, ± 1 %
1K to 6.0M
1K to 3.8M
1K to 2.5M
1K to 1.2M
1K to 1.0M
1K to 6.0M
1K to 6.0M
1K to 6.0M
MAXIMUM
WORKING
VOLTAGE
V
(2)
600
400
400
300
200
800
900
1000
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: MR9355500K00AAE66
(visit
www.vishay.net
SAP parts manual for all options)
M
R
9
3
5
5
VALUE
(6 digits)
5
0
0
K
0
TC
(1 digits)
0
A
A
E
6
6
SPECIAL
(1 digits)
(dash
number)
from
1
to
9
as applicable
GLOBAL MODEL
(6 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
15R000
= 15
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
)
Historical Part Number example: MR9355W500K0A
MR9355
HISTORICAL MODEL
W = STANDARD
TC
500 k
RESISTANCE VALUE
0.05 %
TOLERANCE
Revision: 24-May-16
Document Number: 31813
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
MR93 Series
www.vishay.com
DIMENSIONS
in inches [millimeters]
L
LD
Vishay Mills
D
DIMENSIONS
in inches [millimeters]
GLOBAL MODEL
MR9352
MR9353
MR9354
MR9355
MR9356
MR9357
MR9358
MR9359
L
± 0.025 [0.635]
1.000 [25.40]
0.750 [19.05]
0.750 [19.05]
0.500 [12.70]
0.375 [9.52]
1.000 [25.40]
1.500 [38.10]
2.000 [50.80]
D
± 0.005 [0.127]
0.375 [9.52]
0.375 [9.52]
0.250 [6.35]
0.250 [6.35]
0.250 [6.35]
0.500 [12.70]
0.500 [12.70]
0.500 [12.70]
LD
± 0.002 [0.051]
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]
0.032 [0.813]
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
MR93 RESISTOR CHARACTERISTICS
± 10 for > 100
;
± 20 for 10
to 100
;
± 30 for < 10
4.5
750
-55 to +145 (see derating chart)
PERFORMANCE
TEST
Dielectric Withstanding Voltage
High Frequency Vibration
High Temperature Exposure
Load Life
Low Temperature Storage
Moisture Resistance
Shock, Specified Pulse
Thermal Shock
Short Time Overload
Terminal Strength
Revision: 24-May-16
CONDITIONS OF TEST
MIL-STD-202 Method 301, 750 V
RMS
MIL-STD-202 Method 204, condition D,
frequency varied 10 Hz to 2000 Hz, 20
g
peak
MIL-STD-202 Method 108, 2000 h at 145 °C
MIL-STD-202 Method 108, 2000 h at 125 °C at rated power,
1.5 h “ON”, 0.5 h “OFF”
-65 °C for 24 h
MIL-STD 202 Method 106
MIL-STD-202 Method 213, condition I, 5 shocks in 3 directions
MIL-STD-202 Method 107, condition B
2x rated power for 10 min
MIL-STD-202 Method 211, conditions A and D, 4.5 lb
TEST LIMITS
± (0.01 %)
R
± (0.01 %)
R
± (0.01 %)
R
± (0.1 % + 0.01
) R
± (0.01 %)
R
± (0.01 %)
R
± (0.01 %)
R
± (0.05 %)
R
± (0.01 %)
R
± (0.01 %)
R
Document Number: 31813
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
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: 13-Jun-16
1
Document Number: 91000
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