303119Z, 303119
Vishay Foil Resistors
Models # 303119Z and 303119 (Current Sensing Fixed Foil Resistor Chips
VCS1625Z/VCS1625 Configuration) Screen/Test Flow in Compliance with
EEE-INST-002, (Tables 2A and 3A, Film/Foil, Level 1) and MIL-PRF-55342
FEATURES
Temperature coefficient of resistance (TCR):
± 0.05 ppm/°C typical (0 °C to + 60 °C)
± 0.2 ppm/°C typical (- 55 °C to + 125 °C, + 25 °C ref.)
(see table 1)
Resistance range: 0.01
to 10
INTRODUCTION
The Z-foil technology provides a significant reduction of
the resistive component’s sensitivity to ambient temperature
variations (TCR) and applied power changes (PCR).
Designers can now guarantee a high degree of stability
and accuracy in fixed-resistor applications using solutions
based on Vishay‘s revolutionary Z-foil technology.
0.05 ppm/°C absolute TCR removes errors due to
temperature gradients.
Models 303119Z and 303119 are surface mount chip
resistors designed with 4 pads for Kelvin connection.
Utilizing Vishay’s Bulk Metal
®
Z-foil as the resistance
element, 303119Z provides performance capabilities far
greater than other resistor technologies can supply in a
product of comparable size.
These small devices dissipate heat almost entirely through
the pads so surface mount users are encouraged to be
generous with the board’s pads and traces. Gold
terminations are available as well.
Our application engineering department is available to
advise and to make recommendations.
Vishay Foil resistors are not restricted to standard values,
specific “as required” values can be supplied at no extra
cost or delivery (e.g. 1.234
vs. 1
)
Tolerance: to ± 0.5 %
Power coefficient “R due to self heating”: 5 ppm at rated
power
Load life stability: 0.05 % at 70 °C, 2000 h at rated power
Electrostatic discharge (ESD) up to 25 000 V
Short time overload < 0.02 %
Power rating: 0.5 W at + 70 °C (figure 1)
Non inductive, non capacitive design
Rise time: 1 ns effectively no ringing
Current rating: 5 A maximum
Current noise: < - 40 dB
Voltage coefficient: < 0.1 ppm/V
Non inductive: < 0.08 µH
Non hot spot design
For prototypes units, append a “U” to the model number
(example: 303119ZU). These units have all of the table 2A
(page 3) 100 % tests performed, with no destructive
qualification testing required (table 3A, page 3). For more
information, please contact
foil@vishaypg.com
For oriented performances please contact us
FIGURE 1 - POWER DERATING CURVE
Percent of Rated Power
- 55 °C
100
75
50
25
0
- 75
+ 70 °C
TERMINATIONS
Two options are available:
- tin/lead plated
- 50
- 25
0
+ 25
+ 50
+ 75 + 100 + 125 + 150 + 175
Ambient Temperature (°C)
- gold plated
TABLE 1 - SPECIFICATIONS
MODEL
NUMBER
303119Z
RESISTANCE
RANGE
> 2.0
to 10
> 0.5
to 2.0
0.3
to 0.5
> 2.0
to 10
> 0.5
to 2.0
> 0.1
to 0.5
> 0.05
to 0.1
> 0.03
to 0.05
> 0.01
to 0.03
TIGHTEST RESISTANCE
TOLERANCE
± 0.5 %
± 1.0 %
± 2.0 %
± 0.5 %
± 1.0 %
± 2.0 %
± 2.0 %
± 2.0 %
± 2.0 %
TYPICAL TCR
MAXIMUM TCR
(- 55 °C to + 125 °C, + 25 °C ref.)
± 0.2 ppm/°C
± 3 ppm/°C
± 5 ppm/°C
± 10 ppm/°C
± 15 ppm/°C
± 20 ppm/°C
± 30 ppm/°C
± 50 ppm/°C
0.5 W on FR4 PCB
5A
POWER RATING
at + 70 °C
(1)
MAXIMUM
CURRENT
(1)
303119
± 2.0 ppm/°C
Note
(1)
Whichever is lower
Document Number: 63167
Revision: 12-Jan-12
For any questions, contact:
foil@vishaypg.com
www.vishayfoilresistors.com
1
303119Z, 303119
Vishay Foil Resistors
FIGURE 2 - DIMENSIONS
in Inches (Millimeters)
Solder Pad Layout
L
W
Mounting
Pads (4)
I1
A
Electrical
Schematic
I
1
E
1
R
I
2
E
2
0.200
(5.08)
E1
0.070
(1.78)
B
H
I2
E2
0.070
(1.78)
Top View
Bottom View
INCHES
0.260
(6.60)
MILLIMETERS
6.35 ± 0.25
4.06 ± 0.25
1.02 maximum
2.03 ± 0.13
1.02 ± 0.25
L
H
W
A
B
0.250 ± 0.010
0.160 ± 0.010
0.040 maximum
0.080 ± 0.005
0.040 ± 0.010
FIGURE 3 - TRIMMING TO VALUES
(Conceptual Illustration)
FIGURE 4 - TYPICAL TCR CURVE Z-FOIL
+ 500
+ 400
+ 300
Interloop Capacitance
Reduction in Series
Current Path
Before Trimming
Current Path
After Trimming
Trimming Process
Removes this Material
from Shorting Strip Area
Changing Current Path
and Increasing
Resistance
+ 200
+ 100
ΔR
0
R
(ppm)
- 100
- 200
- 300
- 400
- 500
- 55
- 25
0
+ 25
+ 60 + 75
+ 100 + 125
- 0.16 ppm/°C
Mutual Inductance
Reduction due
to Opposing
Current in
Adjacent Lines
0.05 ppm/°C
- 0.1 ppm/°C
0.1 ppm/°C
0.14 ppm/°C
0.2 ppm/°C
Ambient Temperature (°C)
Note:
Foil shown in black, etched spaces in white
TABLE 2 - PERFORMANCE SPECIFICATIONS
TEST
Thermal shock 5 x (- 65 °C to + 150 °C)
Low temperature operation
Short time overload
High temperature exposure
Resistance to soldering heat
Moisture resistance
Load life 2000 h at 70 °C: rated power on FR4 PCB
Note
(1)
Measurement error 0.001R
MIL-PRF-55342
R
LIMITS
± 0.10 %
± 0.10 %
± 0.10 %
± 0.10 %
± 0.2 %
± 0.2 %
± 0.5 %
TYPICAL
R
LIMITS
± 0.005 % (50 ppm)
± 0.005 % (50 ppm)
± 0.005 % (50 ppm)
± 0.01 % (100 ppm)
± 0.01 % (100 ppm)
± 0.01 % (100 ppm)
± 0.02 % (200 ppm)
MAXIMUM
R
LIMITS
(1)
± 0.01 % (100 ppm)
± 0.02 % (200 ppm)
± 0.02 % (200 ppm)
± 0.1 % (1000 ppm)
± 0.03 % (300 ppm)
± 0.03 % (300 ppm)
± 0.05 % (500 ppm) for values
100 m
± 0.1 % (1000 ppm) for values < 100 m
www.vishayfoilresistors.com
2
For any questions, contact:
foil@vishaypg.com
Document Number: 63167
Revision: 12-Jan-12
303119Z, 303119
Vishay Foil Resistors
NOTES
Tightest absolute tolerance:
10 m to 500 m inclusive, 2 %
> 500 m to 2
inclusive, 1 %
> 2
to 10
inclusive, 0.5 %
Measurement error allowed for
R
limits: 0.001
(if not otherwise specified)
For prototypes units, append a “U” to the model number (example: 303119ZU). These units have all of the table 2A 100 % tests
performed, with no destructive qualification testing required
TABLE 3 - EEE-INST-002 (TABLE 2A FILM/FOIL, LEVEL 1) 100 % TESTS/INSPECTIONS
(1)
RC Record
Thermal Shock
Power Conditioning
RC Record
In tolerance
25 x (- 65 °C to + 150 °C)
70 °C, 100 h, rated power - not to exceed max. current
In tolerance,
R
= 0.05 % for thermal shock and conditioning combined
5 % PDA on
R
only
10 % PDA on “Out of Final Tolerance”
Measurement error allowed on
R
limits:
10 m to 100 m: 0.0001
100 m to 1
:
0.0005
1
to 10
:
0.005
or 0.1 %, whichever is smaller
Materials, design, etc.
Physical dimensions sample size: 3 units for a min. of one failure - 100 % inspection
Final Inspection
Visual Inspection
Mechanical Inspection
Note
(1)
Vishay will perform a pre-cap visual inspection 100 % in the production flow prior to overcoating
TABLE 4 - EEE-INST-002 (TABLE 3A FILM/FOIL, LEVEL 1) DESTRUCTIVE TESTS
Group 2
Solderability
Sample size: 10(0) - mounted on FR4
TCR
Temperature range: - 55 °C/+ 25 °C/+ 125 °C
303119Z Series
Values
0.3
to 10
Values
> 2
to 10
> 0.5
to 2
Group 3
> 0.1
to 0.5
> 0.05
to 0.1
> 0.03
to 0.05
> 0.01
to 0.03
Low temperature storage
R
= 0.02 %
- 65 °C no load dwell for 24 h ± 4 h
+ 25 °C ambient no load dwell for 2 h to 8 h
R
= 0.02 %
- 65 °C no load dwell for 1 h
rated power for 45 min
+ 25 °C ambient no load dwell for 24 h ± 4 h
R
= 0.02 %
6.25 x rated power, 5 s. Current limitation: 5A max.
TCR limits
± 3 ppm/°C
TCR limits
± 5 ppm/°C
± 10 ppm/°C
± 15 ppm/°C
± 20 ppm/°C
± 30 ppm/°C
± 50 ppm/°C
303119 Series
Sample size: 3(0)
Low temperature operation
Short time overload
Sample size: 9(0) - mounted on FR4
Group 4
Resistance to
Soldering Heat
R
= 0.03 %
performed per MIL-PRF-55342 para. 4.8.8.1
Document Number: 63167
Revision: 12-Jan-12
For any questions, contact:
foil@vishaypg.com
www.vishayfoilresistors.com
3
303119Z, 303119
Vishay Foil Resistors
TABLE 4 - EEE-INST-002 (TABLE 3A FILM/FOIL, LEVEL 1) DESTRUCTIVE TESTS
Sample size: 12(0) - mounted on FR4
Group 6
2000 h, + 70 °C, rated power
R
= 0.05 % for values
100
m
R
= 0.1 % for values < 100 m
performed per MIL-PRF-55342
Life
Sample size: 10(0) - mounted on FR4
Group 7B
Solder Mounting Integrity
Performed per MIL-PRF-55342
3 kg force, 30 s
Sample size: 5(0) - mounted on FR4
Group 9
High temperature exposure
R
= 0.1 %
Performed per MIL-PRF-55342
100 h at + 150 °C ± 5 °C
Note
• The sample units should be randomly selected from lots which successfully passed the table 2A tests
PART NUMBER IDENTIFICATION
Model #
Base Model
Value Range
303119Z
VCS1625Z
0.3
to 10
303119
VCS1625
0.01
to 10
Part Number:
{Model} - {Value} - {Tolerance} - {Termination} - {Packaging}
303119Z
Resistance Value
0.3
to 0.5
> 0.5
to 2
> 2
to 10
303119
Resistance Value
0.01
to 0.5
> 0.5
to 2
> 2
to 10
Max. Tolerance
2%
1%
0.5 %
Code
G
F
D
Max. Tolerance
2%
1%
0.5 %
Code
G
F
D
Termination
Tin/lead
Code
B
Packaging
Waffle
Tape and reel
Code
W
T
Example:
303119Z - 2R3 - FBW
VCS1625Z, 2.3
,
1 %, tin/lead termination, waffle packaging
www.vishayfoilresistors.com
4
For any questions, contact:
foil@vishaypg.com
Document Number: 63167
Revision: 12-Jan-12
Legal Disclaimer Notice
Vishay Precision Group
Disclaimer
ALL PRODUCTS, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE.
Vishay Precision Group, Inc., its affiliates, agents, and employees, and all persons acting on its or their
behalf (collectively, “Vishay Precision Group”), disclaim any and all liability for any errors, inaccuracies or
incompleteness contained herein or in any other disclosure relating to any product.
The product specifications do not expand or otherwise modify Vishay Precision Group’s terms and
conditions of purchase, including but not limited to, the warranty expressed therein.
Vishay Precision Group makes no warranty, representation or guarantee other than as set forth in the terms
and conditions of purchase.
To the maximum extent permitted by applicable law, Vishay Precision
Group 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.
Information provided in datasheets and/or specifications may vary from actual results in different
applications and performance may vary over time. Statements regarding the suitability of products for
certain types of applications are based on Vishay Precision Group’s knowledge of typical requirements that
are often placed on Vishay Precision Group products. 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.
No license, express, implied, or otherwise, to any intellectual property rights is granted by this document, or
by any conduct of Vishay Precision Group.
The products shown herein are not designed for use in life-saving or life-sustaining applications unless
otherwise expressly indicated. Customers using or selling Vishay Precision Group products not expressly
indicated for use in such applications do so entirely at their own risk and agree to fully indemnify Vishay
Precision Group for any damages arising or resulting from such use or sale. Please contact authorized
Vishay Precision Group 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 No.: 63999
Revision: 27-Apr-2011
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