RMK 33N
Vishay Sfernice
Dual Value Chip Resistors, Center Tap
FEATURES
•
High precision
•
Very low temperature coefficient < 10 ppm/°C
•
Excellent stability 0.03 % (2000 h, rated power,
at + 70 °C)
•
Wirebondable
Actual Size
The demand for high precision, high stability microchips for
both military and industrial environments is increasing with
the growth and sophistication of modern day hybrid circuitry.
The need for high accuracy ultra stable micro dividers
particularly triggered the development of these third
generation nickel chromium microchip dividers which offer
standards of accuracy and thermal/time stability never
achieved before in the conventional second generation thin
metal film technologies.
TYPICAL PERFORMANCE
ABS
TCR
5 ppm/°C
ABS
TOL.
0.1 %
TRACKING
1 ppm/°C
RATIO
0.01 %
SCHEMATICS
R
T
R
1
R
2
R
T
= R
1
+ R
2
with
R
1
= R
2
Standard
(Unequal values on request)
STANDARD ELECTRICAL SPECIFICATIONS
TEST
SERIES
Resistance range
Tracking
TCR:
Absolute
Ratio
Absolute
SPECIFICATIONS
ULTRAFILM
®
1 kΩ to 250 kΩ
± 1 ppm/°C typical (± 2 ppm/°C maximum)
± 5 ppm/°C maximum
± 10 ppm/°C maximum
0.1 %, 0.05 %, 0.02 %, 0.01 %
± 0.1 %, ± 0.5 %, ± 1 %
125 mW at 25 °C/50 mW at + 70 °C, 25 mW at + 125 °C
300 ppm typical
< 0.01 ppm/V
100 V
DC
on R
T
- 55 °C to + 155 °C
(1)
- 55 °C to + 155 °C
< - 35 dB typical
< 0.01 µV/°C
50 ppm
1 year
MIL-STD-202 Method 308
2000 h at + 70 °C under Pn
(R
T
= R
1
+ R
2
)
- 55 °C to + 125 °C
0 °C to + 70 °C
- 55 °C to + 155 °C
CONDITIONS
Tolerance:
Power rating
Stability
Voltage coefficient
Working voltage
Operating temperature range
Storage temperature range
Noise
Thermal EMF
Shelf life stability
Note:
(1)
For Temperature up to 200 °C, please consult factory
* Please see document “Vishay Green and Halogen-Free Definitions (5-2008)” http://www.vishay.com/doc?99902
www.vishay.com
28
For technical questions, contact: sfer@vishay.com
Document Number: 60068
Revision: 06-Oct-08
RMK 33N
Dual Value Chip Resistors, Center Tap
Vishay Sfernice
DIMENSIONS
DIMENSION
B
INCHES
0.03 ± 0.004
0.03 ± 0.004
0.01 to 0.015
0.006
0.004
0.006
MILLIMETERS
0.76 ± 0.10
0.76 ± 0.10
0.25 to 0.40
0.15
0.10
0.15
Bonding Pad Area
D
A
B
C
A
E
C
F
D
E
F
MECHANICAL SPECIFICATIONS
Resistive element
Substrate material
Body
Passivation
Bonding pads
Passivated Nichrome
Silicon (Alumina on request)
Silcon
Silicone Nitride
Aluminum
GLOBAL PART NUMBER INFORMATION
New Global Part Numbering: RMK33N5KF25KB0016 (preferred part number format)
R
M
K
3
3
N
5
K
F
2
5
K
B
0
0
1
6
GLOBAL MODEL
R1 VALUE
Decimal
R, K or M
ABS. TOLERANCE
B
= ± 0.1 %
W
= ± 0.05 %
D
= ± 0.5 %
F
= ± 1.0 %
R2 VALUE
Decimal
R, K or M
RAT. TOLERANCE
B
= ± 0.1 %
W
= ± 0.05 %
P
= 0.02 %
L
= 0.01 %
OPTION
leave blank if no
option
Historical Part Number example: RMK 33N 5K 25K 1 % 0.1 % R0016 (will continue to be accepted)
RMK 33N
HISTORICAL MODEL
5K 25K
R1/R2 VALUE
1 % 0.1 %
ABS. TOLERANCE
AND RATIO TOLERANCE
R0016
OPTION
Document Number: 60068
Revision: 06-Oct-08
For technical questions, contact: sfer@vishay.com
www.vishay.com
29
Legal Disclaimer Notice
Vishay
Disclaimer
All product specifications and data are subject to change without notice.
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 herein
or in any other disclosure relating to any product.
Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any
information provided herein to the maximum extent permitted by law. The product specifications do not expand or
otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed
therein, which apply to these products.
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.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless
otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such
applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting
from such use or sale. Please contact authorized Vishay 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 Number: 91000
Revision: 18-Jul-08
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