303134, 303135, 303136, 303137, 303138
Vishay Foil Resistors
FIGURE 2 - TRIMMING TO VALUES
FIGURE 3 - TYPICAL RESISTANCE/
(Conceptual Illustration)
TEMPERATURE CURVE
TCR Values for Different Temperature Ranges
+ 500
+ 400
+ 300
+ 200
+ 100
0
Interloop
Current Path
Before Trimming
Capacitance
Reduction
in Series
ΔR
R
Current Path
After Trimming
(ppm)
Mutual
- 100
- 200
- 300
- 400
- 500
0.05 ppm/°C
Inductance
Reduction due
to Opposing
Current in
- 0.1 ppm/°C
0.1 ppm/°C
0.14 ppm/°C
Trimming Process
Removes this Material
from Shorting Strip Area
Changing Current Path
and Increasing Resistance
Adjacent Lines
- 0.16 ppm/°C
- 25
0.2 ppm/°C
- 55
0
+ 25
+ 60 + 75 + 100 + 125
Ambient Temperature (°C)
Note
Note: Foil shown in black, etched spaces in white
• The TCR values for < 100 are influenced by the termination
composition and result in deviation from this curve.
TABLE 2 - DIMENSIONS AND LAND PATTERN in Inches (Millimeters)
Top View
Recommended Land Pattern
L
Footprint
X
G
W
T
Z
D
MODEL
L
W
THICKNESS
D
Z (1)
G (1)
X (1)
(CHIP SIZE)
0.005 (0.13)
0.080 (2.03)
0.126 (3.20)
0.150 (3.81)
0.198 (5.03)
0.249 (6.32)
0.005 (0.13)
0.050 (1.27)
0.062 (1.57)
0.062 (1.57)
0.097 (2.46)
0.127 (3.23)
MAXIMUM
0.025 (0.64)
0.025 (0.64)
0.025 (0.64)
0.025 (0.64)
0.025 (0.64)
0.005 (0.13)
0.015 (0.38)
0.020 (0.51)
0.020 (0.51)
0.025 (0.64)
0.032 (0.81)
303134 (0805)
303135 (1206)
303136 (1506)
303137 (2010)
303138 (2512)
0.122 (3.10)
0.175 (4.45)
0.199 (5.05)
0.247 (6.27)
0.291 (7.39)
0.028 (0.71)
0.059 (1.50)
0.083 (2.11)
0.115 (2.92)
0.150 (3.81)
0.050 (1.27)
0.071 (1.80)
0.071 (1.80)
0.103 (2.62)
0.127 (3.23)
Note
(1)
Land Pattern Dimensions are per IPC-7351A
TABLE 3 - SPECIFICATIONS
MODEL
RATED POWER (mW)
MAX. WORKING
VOLTAGE ( P R )
RESISTANCE RANGE
MAXIMUM WEIGHT
(mg)
(CHIP SIZE)
at + 70 °C
()
303134 (0805)
303135 (1206)
303136 (1506)
303137 (2010)
303138 (2512)
100
150
200
300
400
22 V
46 V
10to 5K
10to 14K
10to 16K
10to 35K
10to 75K
6
11
12
27
40
57 V
102 V
173 V
TABLE 4 - PERFORMANCES
MIL-PRF-55342
CHARACTERISTIC E R LIMITS
TYPICAL
R LIMITS
MAXIMUM
TEST OR CONDITIONS
R LIMITS (1)
Thermal Shock, 100 x (- 65 °C to + 150 °C)
Low Temperature Operation, - 65 °C, 45 min at Rated Power
Short Time Overload, 6.25 x Rated Power, 5 s
High Temperature Exposure, + 150 °C, 100 h
Resistance to Soldering Heat
0.1 %
0.1 %
0.1 %
0.1 %
0.2 %
0.2 %
0.5 %
0.005 % (50 ppm)
0.005 % (50 ppm)
0.005 % (50 ppm)
0.01 % (100 ppm)
0.005 % (50 ppm)
0.005 % (50 ppm)
0.005 % (50 ppm)
0.01 % (100 ppm)
0.02 % (200 ppm)
0.02 % (200 ppm)
0.03 % (300 ppm)
0.02 % (200 ppm)
0.04 % (400 ppm)
0.03 % (300 ppm)
Moisture Resistance
Load Life Stability + 70 °C for 2000 h at Rated Power
Note
(1)
As shown + 0.01 to allow for measurement errors at low values.
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2
For any questions, contact: foil@vishaypg.com
Document Number: 63169
Revision: 29-Mar-10