CTN
Vishay Electro-Films
CHIP
RESISTORS
Nichrome Thin Film, Center Tapped Resistors
FEATURES
• Wire bondable
Product may not
be to scale
• Center tap feature
• Chip size: 0.030 inches square
• Resistance range total: 10 Ω to 1 MΩ
• Ratio tolerances to: 0.1 %
The CTN series is a center tapped nichrome resistor chip
providing excellent stability at 250 mW power levels. The
CTN offers the designer flexibility in use as either a single
value resistor or as two resistors with a center tap feature.
The CTNs six bonding pads allows the user increased layout
flexibility.
• Resistor material: Nichrome
• Oxidized silicon substrate for good power dissipation
The CTNs are manufactured using Vishay Electro-Films
(EFI) sophisticated thin film equipment and manufacturing
technology. The CTNs are 100 % electrically tested and
visually inspected to MIL-STD-883.
APPLICATIONS
The CTN center-tapped resistor chips are used mainly in feedback circuits of amplifiers where ratio matching, high power and
tracking between two resistors is critical.
Recommended for Hermetic environment where die is not exposed to moisture.
For low values, the resistance of the six bonding-pad configurations can vary, depending on the method of measurement used.
Vishay EFI measures low-value resistors by the four wire Kelvin technique.
TEMPERATURE COEFFICIENT OF RESISTANCE, VALUES AND TOLERANCES
Tightest Standard Tolerance Available
PROCESS CODE
0.1 %
0.5 %
CLASS H*
260
201
± 100 ppm/°C
262
200
± 50 ppm/°C
263
202
± 25 ppm/°C
CLASS K*
203
± 10 ppm/°C
261
*MIL-PRF-38534 inspection criteria
10 Ω
100 Ω
200 Ω
1 kΩ
1 MΩ
STANDARD ELECTRICAL SPECIFICATIONS
PARAMETER
TCR Tracking Between Halves (RA/RB)
± 2 ppm/°C *
Center Tap Ratio, RA/RB Tolerance
1 ± 1 % standard
Noise, MIL-STD-202, Method 308, 100 Ω - 250 kΩ
- 35 dB typ.
± 0.1 % ΔR/R
Stability, 1000 h, + 125 °C, 125 mW
Operating Temperature Range
- 55 °C to + 125 °C
Dielectric Voltage Breakdown
200 V
1012 min.
Insulation Resistance
Operating Voltage
100 V max.
DC Power Rating at + 70 °C (Derated to Zero at + 175 °C)
250 mW
* 20 ppm/°C for R < 20
www.vishay.com
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For technical questions, contact: efi@vishay.com
Document Number: 61024
Revision: 12-Mar-08
