SFM
www.vishay.com
Vishay Electro-Films
Thin Film Top-Contact Resistor
FEATURES
• Wire bondable
• Small size: 0.020 inches square
• Case: 0202
• Resistance range: 1.0
to 1 M
• DC power rating: 250 mW
Product may not be to scale
The SFM series single-value resistor chips offer a small size,
wide ohmic value range and excellent power capacity.
The SFMs tantalum nitride resistor material offers excellent
resistance to high moisture environments.
The SFMs are manufactured using Vishay Electro-Films
(EFI) sophisticated thin film equipment and manufacturing
technology. The SFMs are 100 % electrically tested and
visually inspected to MIL-STD-883, method 2032 class H
or K.
• Oxidized silicon substrate for good power
dissipation
• Resistor material: tantalum nitride, self-passivating
• Moisture resistant
• Material categorization: for definitions of compliance
please see
www.vishay.com/doc?99912
APPLICATIONS
Vishay EFI SFM top-contact resistor chips are designed to
handle substantial power loads in many types of hybrid
packages. They are ideally suited for this purpose because
of their small size.
TEMPERATURE COEFFICIENT OF RESISTANCE, VALUES, AND TOLERANCES
PARAMETER
Total resistance range
Standard tolerances
TCR
1%
0.5 %
VALUE
1 to 1M
± 0.1, ± 0.5, ± 1
± 25, ± 50, ± 100, ± 250
Tightest Standard Tolerance Available
0.1 %
± 25 ppm/°C
± 50 ppm/°C
± 100 ppm/°C
± 250 ppm/°C
UNIT
%
ppm/°C
1
Ω
10
Ω
30
Ω
100
Ω
200 kΩ 360 kΩ 620 kΩ 1 MΩ
STANDARD ELECTRICAL SPECIFICATIONS
PARAMETER
Noise, MIL-STD-202, method 308
100
to 250 k
< 100
or > 251 k
Moisture resistance, MIL-STD-202 method 106
Stability, 1000 h, +125 °C, 125 mW
Operating temperature range
Thermal shock, MIL-STD-202, method 107, test condition F
High temperature exposure, +150 °C, 100 h
Dielectric voltage breakdown
Insulation resistance
Operating voltage
DC power rating at +70 °C (derated to zero at +175 °C)
5 x rated power short-time overload, +25 °C, 5 s
Revision: 23-Jul-2019
VALUE
-35 typ.
-20 typ.
± 0.5 max.
R/R
± 0.25 max.
R/R
-55 to +150
± 0.25 max.
R/R
± 0.5 max.
R/R
200
10
12
min.
100 max.
0.250
± 0.25 max.
R/R
UNIT
dB
%
%
°C
%
%
V
V
W
%
Document Number: 61017
1
For technical questions, contact:
efi@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
SFM
www.vishay.com
CONFIGURATIONS
in inches
0.004
0.020
0.020
Vishay Electro-Films
0.007
0.020
0.016
0.006
0.004
0.004
0.004
0.016
TYPICAL RANGE
1
Ω
to 29
Ω
TYPICAL RANGE
30
Ω
to 819
Ω
TYPICAL RANGE
820
Ω
to 1 MΩ
SCHEMATIC
MECHANICAL SPECIFICATIONS
PARAMETER
Chip size
Chip thickness
Chip substrate material
Resistor material
Bonding pad size
Number of pads
Pad material
Backing
VALUE
0.020" x 0.020" ± 0.003" (0.5 mm x 0.5 mm ± 0.076 mm)
0.010" ± 0.002" (0.254 mm ± 0.05 mm)
Oxidized silicon, 10 kÅ minimum SiO
2
Tantalum nitride, self-passivating
0.004" x 0.004" (0.10 mm x 0.10 mm)
2
25 kÅ minimum aluminum
None, lapped semiconductor silicon
GLOBAL PART NUMBER INFORMATION
Global Part Number: SFM50000FKANHWS
Global Part Number Description: SFM 5K 1 %, 100 ppm/°C, Al, no back metal, class H, WS
S
F
M
5
0
0
0
0
F
K
A
N
H
W
S
MODEL
SFM
RESISTANCE
First 4 digits are
significant
figures
of resistance
RESISTANCE
MULTIPLIER
CODE
C
= 0.001
B
= 0.01
A
= 0.1
0
=1
1
= 10
2
= 100
3
= 1000
TOLERANCE
CODE
(%)
B
= 0.1
C
= 0.25
D
= 0.5
F
= 1.0
G
= 2.0
H
= 2.5
J
= 5.0
K
= 10
TCR
(ppm/°C)
E
= ± 25
C
= ± 50
K
= ± 100
M
= ± 250
R
=
0 / -250
TERMINATION
G
= Au
A
= Al
BACK
METAL
G
= Au
N
= none
VISUAL
CLASS
H
= class H
K
= class K
PACKAGING
CODE
WS
= waffle pack
100 min., 1 mult.
Revision: 23-Jul-2019
Document Number: 61017
2
For technical questions, contact:
efi@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
or by any conduct of Vishay. Product names and markings noted herein may be trademarks of their respective owners.
© 2019 VISHAY INTERTECHNOLOGY, INC. ALL RIGHTS RESERVED
Revision: 01-Jan-2019
1
Document Number: 91000
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