SC7, SCB
Vishay Electro-Films
Thin Film Resistors on Silicon, User Trimmable
CHIP
RESISTORS
FEATURES
Product may not
be to scale
•
Wire bondable
•
Chip sizes
SC7 - 0.030 inches square
SCB - 0.050 inches square
•
Resistance range
R
T
: 100
Ω
to 20 kΩ for SC7
Resistance range
R
T
: 100
Ω
to 50 kΩ for SCB
•
Silicon substrate
•
Power: 250 or 400 mW capability
•
Resistor material: Nichrome
•
User trimmable
The SC7 and SCB series resistor chips offer a combination
of nichrome user trimmability as a single resistor or as a ratio
trim while maintaining the excellent TCR tracking
characteristics of two resistors on the same chip.
The SC7 and SCBs are manufactured using Vishay Electro-
Films (EFI) sophisticated thin film equipment and
manufacturing technology. The SC7 and SCBs are 100 %
electrically tested and visually inspected to MIL-STD-883.
APPLICATIONS
Vishay EFI SC7 and SCB chip resistors have excellent power dissipation capability and are ideally suited for prototyping.
Typical application areas are:
•
Couplers
•
Amplifiers
•
Filters
•
Oscillators
•
Attenuators
Recommended for hermetic environments where die is not exposed to moisture
TEMPERATURE COEFFICIENT OF RESISTANCE, VALUES AND TOLERANCES
Tightest Standard Tolerance Available
0.1 %
± 25 ppm/°C
± 50 ppm/°C
± 100 ppm/°C
PROCESS CODE
SC7
CLASS H*
220
221
222
CLASS K*
224
225
226
CLASS H*
220
221
222
SCB
CLASS K*
224
225
226
100
Ω
200
Ω
50 kΩ
*MIL-PRF-38534 inspection criteria
R
A
user trimmable 50 % above
R
T
value specified in P/N
STANDARD ELECTRICAL SPECIFICATIONS
PARAMETER
Noise, MIL-STD-202, Method 308
Stability, 1000 h, + 125 °C at Rated Power
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 150 °C
5 x Rated Power Short-Time Overload, + 25 °C, 5 s
Note:
• Performance characteristics are not guaranteed once user trimmed
www.vishay.com
86
For technical questions, contact: efi@vishay.com
Document Number: 61011
Revision: 11-Mar-08
- 20 dB typ.
± 0.2 % max.
ΔR/R
- 55 °C to + 125 °C
± 0.25 % max.
ΔR/R
± 0.25 % max.
ΔR/R
200 V
10
12
min.
100 V max.
250 mW max. (0.030 inches)
400 mW max. (0.050 inches)
+ 0.25 % max.
ΔR/R
SC7, SCB
Thin Film Resistors on Silicon, User Trimmable
Vishay Electro-Films
DIMENSIONS
in inches
SC7
0.030
0.005
0.0075
CHIP
RESISTORS
SCB
0.050
0.005
0.005
0.016
0.030
0.035
0.050
0.005
0.005
SCHEMATIC
R
T
=
R
A
+
R
B
R
A
R
B
MECHANICAL SPECIFICATIONS
in inches
PARAMETER
Chip Size
Chip Thickness
Chip Substrate Material
Resistor Material
Bonding Pad Size
Number of Pads
Pad Material
Backing
Options:
Gold back for solder die attach
Consult Application Engineer
0.030 x 0.030 ± 0.003 (0.76 x 0.76 ± 0.076 mm)
0.050 x 0.050 ± 0.003 (1.27 x 1.27 ± 0.076 mm)
0.010 ± 0.002 (0.25 ± 0.05 mm)
Oxidized silicon, 10 kÅ minimum SiO
2
Nichrome
0.005 x 0.005 (0.127 x 0.127 mm) minimum
6
15 kÅ minimum gold standard
None, lapped semiconductor silicon
ORDERING INFORMATION
Example: 100 % visualled,
R
T
= 500, ± 10 %, ± 50 ppm/°C TCR,
R
A
user trim gold pads, class H visual inspection
Standard user trim versions will be supplied with
R
A
untrimmed
For custom
R
A
,
R
B
combinations consult Application Engineer
W
INSPECTION/
PACKAGING
W = 100 % visually inspected
parts in matrix MIL-STD-883
X = Sample, commercial visually
inspected parts loaded in matrix
trays (4 % AQL)
SC7
PRODUCT
FAMILY
SC7
SCB
221
PROCESS
CODE
See Process Code
table
5000
RESISTANCE
VALUE
Use first 4 digits
significant digits of the
resistance (R
T
)
A
MULTIPLIER
CODE
B
= 0.01
A
= 0.1
0
=1
1
= 10
K
TOLERANCE
CODE
B
= 0.1 %
D
= 0.5 %
F
= 1.0 %
G
= 2.0 %
H
= 2.5 %
J
= 5.0 %
K
= 10 %
M
= 20 %
www.vishay.com
87
Document Number: 61011
Revision: 11-Mar-08
For technical questions, contact: efi@vishay.com
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
www.vishay.com
1
Switching Power Supply Study Group
京公网安备 11010802033920号
EEWORLD
