High Precision (0.01 %/10 ppm/°C)
Conformal Coating Sil Resistor
CNS 020
Vishay Sfernice
www.vishay.com For technical questions, contact: sfer@vishay.com Document Number: 60051
84 Revision: 25-Aug-09
SCHEMATIC
FEATURES
•Tight TCR to 5 ppm/°C
•Incorporates high stability thin film element
(0.1 % at + 70 °C at Pn during 1000 h)
•Through hole (Sil)
•100 Ω to 10 MΩ
•Tight tolerance down to 0.01 %
•Compliant to RoHS directive 2002/95/0EC
TYPICAL PERFORMANCE
Note
(1) 15 ppm/°C for R ≥ 1.5M
DIMENSIONS AND IMPRINTING
CNS 020
In clear: Model, Vishay logo and manufacturing code
On back: Ohmic value (in Ω), tolerance (in %)
** Please see document “Vishay Material Category Policy”: www.vishay.com/doc?99902
ABS
TCR 5 ppm/°C
ABS
TOL. 0.01 %
STANDARD ELECTRICAL SPECIFICATIONS
TEST SPECIFICATIONS CONDITIONS
MATERIAL PASSIVATED NICHROME
Resistance range 100 Ω (minimum) to 10 MΩ (maximum)
Absolute TCR
Standard (1) ± 10 ppm/°C - 40 °C to + 125 °C
On request ± 5 ppm/°C 0 °C to + 70 °C
Tolerance: Absolute ± 0.01 % to ± 1 %
Power rating
0.5 W at + 70 °C
0.3 W at + 125 °C
Working voltage (maximum) 300 V
Operating temperature range - 55 °C to + 155 °C
B
A
E
D
C
F
G
DIMENSION INCHES MILLIMETERS
A 0.318 8.10
B 0.260 6.62
C 0.020 0.51
D 0.200 5.08
E 0.120 3.17
F 0.100 2.54
G 0.010 0.25
CNS 020
High Precision (0.01 %/10 ppm/°C)
Conformal Coating Sil Resistor Vishay Sfernice
Document Number: 60051 For technical questions, contact: sfer@vishay.com www.vishay.com
Revision: 25-Aug-09 85
ENVIRONMENTAL TEST
TEST
REQUIREMENTS
CONDITIONS
NFC 83220
CECC40300
MIL-PRF
55182E
DRIFTS
(max.)
Overload ± 0.01 % ± 0.05 % 0.01 % 2.5 Un/5 s
Umax. < 2 Un
Temperature cycling ± 0.01 % ± 0.05 % 0.01 % - 55 °C/+ 155 °C 5 cycles
CEI 63-2-14 Test No
Terminal strength ± 0.01 % ± 0.02 % 0.01 % CEI 68-2-21
Test Ua (pulling), Ub (bending), Uc (twisting)
Resistance to solder heat ± 0.01 % ± 0.02 % 0.01 % + 260 °C/10 s, CEI 68-2-20A
Test T6 (Met 1A)
Vibration ± 0.01 % ± 0.02 % 0.01 % 10 Hz to 500 Hz
10 g, 6 h Met B4; CEI 68-2-6 Test Fc
Climatic sequence
± 0.05 %
insulation resistance
> 102 MΩ
- 0.05 %
- 55 °C/+ 155 °C 6 cycles 95 % RH
RH 85 mbar
CEI68-1
Moisture
± 0.05 %
insulation resistance
> 102 MΩ
- 0.02 %
56 days 95 % RH
+ 40 °C
CEI 68-2-3
High temperature storage ± 0.05 % - 0.05 % 1000 h/+ 155 °C
CEI 68-2-20A; Test B
MECHANICAL SPECIFICATIONS
Resistive material Nichrome
Substrate material Alumina
Terminals Tin/silver on Cu alloy
Protection Conformal epoxy coating
GLOBAL PART NUMBER INFORMATION
New Global Part Numbering: CNS020-301KF (preferred part number format)
GLOBAL MODEL VALUE TOLERANCE
CNS 020 Decimal: R, K or ML = ± 0.01 %
P = ± 0.02 %
W = ± 0.05 %
B = ± 0.1 %
C = ± 0.25 %
D = ± 0.5 %
F = ± 1.0 %
Historical Part Number example: CNS 020 301K 1 % (will continue to be accepted)
CNS 020 301K 1 %
HISTORICAL MODEL VALUE TOLERANCE
CNS 0 2 0 - 3 0 1KF
Document Number: 91000 www.vishay.com
Revision: 18-Jul-08 1
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