ATC WIRE BONDABLE RESISTIVE PRODUCTS
ATC WBR Series
Wire Bond Resistors
(Top Contact/Bottom Isolated)
Features:
• Resistance Range: 5
Ω
to 1 MΩ*
• Outline Size: 20 x 20 mils (0.51 x 0.51 mm)
• Passivated SiCr or TaN Resistor Material
• Gold Wire Bondable**
• Ultra-High Stability
• Extremely Low TCR available (±25 ppm/°C)
• Laser Trim for Tight Tolerances
• Top Contact / Bottom Isolated
• Unique A-Face Value Marking
• Ideal for Hybrid Circuit Applications
Please contact factory for the following:
* Custom designs up to 10 MΩ
are available
**Aluminum bond pads
are available
Applications:
• Hybrid Chip on Board
Circuits
• Multi Chip Module (MCM)
• Bias Networks
• Test and Measurement
Equipment
• Aerospace
• Medical
• Automotive
American Technical Ceramics offers the WBR Series
precision Wire Bondable Resistors. These resistors are
designed specifically for applications that require stable
thermo-compression, ultrasonic or epoxy die attach-
ment. This device is built in an 0202 chip outline and is
ideal for but not limited to hybrid circuit applications.
The WBR Series utilizes our proprietary thin film resistor
material sets. This results in extremely tight tolerances
and superior Temperature Coefficient of Resistance
(TCR). Tolerance of ±0.1%, with absolute TCR of ±25
ppm/°C is available. The WBR offers excellent stability
and reliability and is suitable for the most demanding
applications.
120
WBR Series Power Derating
% Res Change
0.000
-0.010
-0.020
-0.030
-0.040
-0.050
ATC WBR Life Test Data
% Power Applied
100
80
60
% Derating
40
20
0
-65 -45 -25
-5
15
35 55
75
95 115 135 155 175
0
200
400
600
800
1000
1200
Temperature (°C)
250 mW (70°C, derated to 0 at 150°C) on alumina
Time (hrs)
ATC # 001-1109
Rev C, 6/17
ATC WIRE BONDABLE RESISTIVE PRODUCTS
Resistor Materials
Substrate Material
Resistor Material
Backing
Bonding Pad Material
Oxidized Silicon
Silicon Chrome (SiCr)
None, Lapped Silicon
Gold
inches (mm)
Thickness (T)
Bond Pad
.010 ±.002
.0038 x .0038
(0.25 ±0.05)
(0.09 x 0.09)
0.020
(0.51)
0.002 (0.05)
0.002
(0.05)
Outline Dimensions
Mechanical Configurations
Size
0202
Length (L)
Width (W)
.020 ±.004 .020 ±.004
(0.51 ±0.10) (0.51 ±0.10)
0.004 (0.10)
inches (mm)
General Specifications
Package Outline
Resistance Range
Power Rating
Termination
Tolerances
Operating Temperature
Temperature Coefficient of Resistance
Maximum Rated Voltage
Insulation Resistance
*Custom Designs up to 10
MΩ available
Limit
±0.25% max
±0.25% max.
±0.25% max.
±0.25% max.
4 grams min. (1.25 mil wire)
±0.25% max.
Resistor
0202
5
Ω to 1 MΩ
*
250 mW (70°C, derated to 0 at 150°C) on alumina
Gold Wire Bond
0.1, 0.5, 1%
-55°C +125°C
±25, ±50, ±100 ppm/°C
125 volts
10
6
MΩ
Detail
Environmental Tests
Test
Life Test
Thermal Shock
High Temperature Exposure
Moisture Resistance
Wire Bond Test
Short-Time Overload
Condition
1000 hrs., 125°C @ 50 mW
IAW MIL-STD-202, condition B
100 hrs. @ 150°C
IAW MIL-PRF-55342
IAW MIL-PRF-55342
IAW MIL-PRF-55342
ATC Part Number Code
ATC WBR 1
Name
Type
Type 1: ≥ 2 KΩ
(SiCr)
Type 2: < 2 KΩ
(TaN)
Resistance Value (Ω)
3 significant digits
R = Decimal Point
Multiplier
The above part number refers to an ATC WBR1 (0202), 4700 Ohms, F tolerance (1%), Gold Wire Bond Terminations, TCR
of 100 ppm/°C, Waffle Pack Packaging
ATC accepts orders for our parts using designations with or without the “ATC” prefix. Both methods
of defining the part number are equivalent, i.e., part numbers referenced with the “ATC” prefix are
interchangeable to parts referenced without the “ATC” prefix. Customers are free to use either in
specifying or procuring parts from American Technical Ceramics.
470
1
F
G
E
W
Packaging: Waffle Pack, 400 pc. qty.
Temperature Coefficient
of Resistance (TCR - ppm/°C)
C = ±25, D = ±50,
E = ±100 (Std.)
Termination
G = Gold Wire Bond
Tolerance
RESISTOR TOLERANCE
F
Code
B
D
±0.1%
±0.5% ±1%
Tol.
F standard; consult factory for B and D
For additional information and catalogs contact your ATC
representative or call direct at +1-631-622-4700.
Consult factory for additional performance data.
Sales of ATC products are subject to the terms and conditions contained in American Technical Ceramics Corp. Terms and Conditions of Sale (ATC document #001-992 Rev. A 10/03). Copies of these
terms and conditions will be provided upon request. They may also be viewed on ATC’s website at www.atceramics.com/productfinder/default.asp. Click on the link for Terms and Conditions of Sale.
ATC has made every effort to have this information as accurate as possible. However, no responsibility is assumed by ATC for its use, nor for any infringements of rights of third parties which may
result from its use. ATC reserves the right to revise the content or modify its product line without prior notice.
© 2012 American Technical Ceramics Corp. All Rights Reserved.
ATC # 001-1109; Rev C, 6/17
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