V5X5P, V15X5P, V15X10P
Vishay Foil Resistors
Bulk Metal
®
Foil Technology Discrete Chips with TCR of 2 ppm/°C,
Tolerance to 0.005 %, and Load Life Stability of ± 0.01 %
for 10 000 h for use in Hybrid Circuits
FIGURE 1 - TRIMMING CHIP RESISTORS
V5X5P
FEATURES
•
Temperature coefficient of resistance (TCR):
Absolute: ± 2.0 ppm/°C (- 55 °C to + 125 °C,
+ 25 °C ref.)
TCR tracking: to 0.5 ppm/°C
(1)(2)
•
Resistance tolerance:
Absolute to ± 0.01 % (user trimmable to ± 0.005 %)
Match: to 0.01 %
•
Power rating: 50 mW to 150 mW at + 70 °C
•
Load life stability: ± 0.01 % at + 70 °C, 10 000 h at rated
power
•
Resistance range: 5
Ω
to 80 kΩ (see table 2)
•
Vishay Foil Resistors are not restricted to standard values;
specific “as required” values can be supplied at no extra
cost or delivery (e.g. 1K2345 vs. 1K)
•
Hybrid chips are also available for high temperature
applications, please contact us for more details
•
Short time overload:
≤
0.02 %
•
Electrostatic discharge (ESD) up to 25 000 V
•
Non-inductive, non-capacitive design
•
Rise time: 1 ns effectively no ringing
•
Thermal stabilization time < 1 s (nominal value achieved
within 10 ppm of steady state value)
•
Current noise: 0.010 µV
RMS
/V of applied voltage (< - 40 dB)
•
Non-inductive: < 0.08 µH
•
Pattern design minimizing hot spots
0.015 %
ΔR
maximum under full rated power for 2000 h at
+ 70 °C.
The Vishay precision trimming system allows for adjustment
to precise resistance values without concern over
mechanical override and control problems encountered in
laser or air abrade trimming of solid geometry resistance
patterns. This ability to trim resistor chips to tolerance levels
never before available to hybrid manufacturers, now gives a
project manager the ability to increase the value-added level
of their hybrid services. More of the profit thus available can
be retained within the facility. Now, instead of buying
precision resistors in separate packages or modules (which
require additional PC board real estate) and integrating them
into a system, the project manager can utilize Vishay
precision resistor chips or matched sets to manufacture the
entire hybrid circuit in-house. Eliminates the need to “pin-out”
for precision resistor requirements because the precision
resistors are inside - part of the hybrid microcircuit design.
Vishay precision chip resistors are available either factory-
trimmed to exact resistance values (option T) or ready for
user trimming (option U); user trimming can be done either
before or after bonding - using standard epoxies - onto the
hybrid circuit substrate using standard laser, air abrade, or
manual adjustment techniques. However care should be
taken that no carbonization occurs when laser trimming.
Trim Points
Gold Plated Pads
V15X5P
Gold Plated Pads
V15X10P
Gold Plated Pads
The typical pattern and trimming illustrations show that the
V5X5P resistor has 16 trimming points, the V15X5P has 20
and the V15X10P has 21. These trimming points are
arranged around the chip periphery and are clearly
indicated. Trimming to the desired resistance value and
tolerance is accomplished by cutting the trim points, thereby
producing specific incremental changes in the chip’s
resistance value relative to the original prevalue; up to
+ 20 % for the V5X5P, + 30 % for the V15X5P, and + 50 %
for the V15X10P (not all trim points need be used; the
ΔR
necessary to adjust the pre-value to the desired final value
dictates which trim points need to be used).
Monitoring of circuit output while “actively” trimming readily
permits adjustment of the chip to ± 0.005 %.
Actual trimming charts are supplied on request for all
images.
Vishay precision chip resistors offer an order of magnitude
of improvement over other chip resistors in hybrid
applications. With a maximum Temperature Coefficient of
Resistance (TCR) of ± 5 ppm/°C, selected TCR tracking to
0.5 ppm/°C and factory supplied resistance tolerances to
± 0.01 %, they provide the user with accuracy and stability
not available in other chip resistor products. If desired they
can be user trimmed to any value within ± 0.005 %, where
the value remains stable after trimming. Load life stability is
Document Number: 63024
Revision: 13-Jan-11
For any questions, contact:
foil@vishaypg.com
www.vishayfoilresistors.com
1
V5X5P, V15X5P, V15X10P
Vishay Foil Resistors
TABLE 2 - PRECISION CHIP RESISTOR SPECIFICATIONS
(2)
Resistance range
TCR
(- 55 °C to + 125 °C, + 25 °C Ref. (ppm/°C)
5
Ω
to 10 kΩ (model V5X5P)
5
Ω
to 33 kΩ (model V15X5P)
33 kΩ to 80 kΩ (model V15X10P)
see Table 1
0 to 1.2 x nominal prevalue (V5X5P)*
0 to 1.3 x nominal prevalue (V15X5P)
0 to 1.5 x nominal prevalue (V15X10P)
Note
* The V5X5P chips are being gradually redesigned for a higher trimming factor -
1.3 or more instead of 1.2. For information about the availability of a specific
resistance value, contact the factory.
Option T (trimmed to value at Vishay)*
± 0.01 %; ± 0.02 %; ± 0.05 %; ± 0.1 %; ± 0.25 %; ± 0.5 %; ± 1 %; ± 5 %
Option U (for user trimming to any value within ± 0.005 %)
G.F. = Good for values
Note
* See table 1 for resistance/tolerance limits
V5X5P: 0.05 W (22 V maximum)
V15X5P: 0.1 W (54 V maximum)
V15X10P: 0.15 W (100 V maximum)
1 ns without ringing
0.1 µH maximum; 0.08 µH typical
1.0 pF maximum; 0.5 pF typical
< 0.010 µV
RMS
/V of applied voltage (< - 40 dB)
< 0.1 ppm/V
22 V (model V5X5P)
54 V (model V15X5P)
100 V (model V15X10P)
Trimming range
(Approximate adjustment capability)
Resistance tolerance
Power rating
(at + 70 °C ambient temperature), (see figure 3)
High frequency operation
Rise time
Inductance
Capacitance
Current noise
Voltage coefficient
Working voltage
TABLE 3 - ENVIRONMENTAL PERFORMANCE COMPARISON
TYPICAL VISHAY
Test group I
Thermal shock
Test group II
Low temperature operation
Short time overload
High temperature exposure
Resistance to bonding exposure
Test group III
Moisture resistance
Test group IV (Load Life Stability)
2000 h at + 70 °C
10 000 h at + 70 °C
Notes
(1)
MAXIMUM
± 0.04 %
± 0.01 %
± 0.04 %
± 0.05 %
± 0.05 %
± 0.1 %
± 0.015 %
± 0.05 %
± 0.02 %
± 0.005 %
± 0.02 %
± 0.02 %
± 0.02 %
± 0.03 %
± 0.005 %
± 0.01 %
TCR tracking is a measure of the similarity of resistance value change in two or more resistors which are undergoing the same temperature
changes. Tracking could be expressed as the difference in the temperature coefficients of the resistors, expressed in ppm/°C as (ΔR
1
/R
1
-
ΔR
2
/R
2
) x 10
-6
/ΔT °C.
Selected TCR tracking is available for specially ordered lots of resistors. The selected TCR tracking can be 3, 2, 1 and as close as 0.5 ppm/°C
throughout the full temperature range. Should close TCR tracking be required for differing resistance values, contact the factory.
(2)
Document Number: 63024
Revision: 13-Jan-11
For any questions, contact:
foil@vishaypg.com
www.vishayfoilresistors.com
3
V5X5P, V15X5P, V15X10P
Vishay Foil Resistors
FIGURE 4 - POWER DERATING CURVE
Discrete chips suitable for working temperatures of up to
+ 200 °C are available on request.
- 55 °C
100
FIGURE 5 - TRIMMING TO VALUES
(conceptual illustration)
+ 70 °C
Rated Power (%)
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
75
50
25
0
- 75
Mutual Inductance
Reduction due
to Change in
Current Direction
- 50
- 25
0
+ 25 + 50 + 75 + 100 + 125 + 150 + 175
Ambient Temperature (°C)
Note:
Foil shown in black, etched spaces in white
TABLE 4 - GLOBAL PART NUMBER INFORMATION
(trimmed option)
(1)(2)
NEW GLOBAL PART NUMBER: Y4045249R000Q0W (preferred part number format)
DENOTES PRECISION
Y
VALUE
R
=
Ω
K
= kΩ
CHARACTERISTICS
0
= standard
1 to 999
= custom
Y
4
0
4
5
2
4
9
R
0
0
0
Q
0
W
PRODUCT CODE
Trimmed
(2)
:
4045
= V5X5PT
4047
= V15X5PT
4475
= V15X10PT
RESISTANCE TOLERANCE
T
= ± 0.01 %
Q
= ± 0.02 %
A
= ± 0.05 %
B
= ± 0.1 %
C
= ± 0.25 %
D
= ± 0.5 %
F
= ± 1.0 %
J
= ± 5.0 %
PACKAGING
W
= waffle pack
FOR EXAMPLE: ABOVE GLOBAL ORDER Y4045 249R000 Q 0 W:
TYPE: V5X5P trimmed
VALUE: 249.0
Ω
ABSOLUTE TOLERANCE: ± 0.02 %
PACKAGING: waffle pack
HISTORICAL PART NUMBER: V5X5PT 249R00 Q W (will continue to be used)
V5X5PT
MODEL
V5X5PT
V15X5PT
V15X10PT
249R00
OHMIC VALUE
249R00
= 249.0
Ω
Q
RESISTANCE TOLERANCE
T
= ± 0.01 %
Q
= ± 0.02 %
A
= ± 0.05 %
B
= ± 0.1 %
C
= ± 0.25 %
D
= ± 0.5 %
F
= ± 1.0 %
J
= ± 5.0 %
W
PACKAGING
W
= waffle pack
Notes
(1)
(2)
For non-standard requests, please contact application engineering.
Vishay Foil Resistors to supply chips trimmed to the purchaser’s exact resistance and tolerance specifications, ready for insertion into a hybrid
microcircuit with no further processing other than bonding and termination. Specify exact resistance value(s) and tolerance(s).
For any questions, contact:
foil@vishaypg.com
Document Number: 63024
Revision: 13-Jan-11
www.vishayfoilresistors.com
4
PCB设计
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