RNCS Series — Anti-Corrosive Tantalum Nitride Replacement
Features
• Special passivation for moisture
sensitive applications
• Absolute TCR’s to ±25 ppm/°C
• Available in industry standard sizes
from 0201 to 2512
• Resistance range from 25Ω to 600KΩ
• Test proven immunity to humidity and
moisture corrosion
• Absolute tolerances to 0.1%
• Ideal replacement for costly Tantalum
Nitride resistors
• RoHS compliant / lead-free
The RNCS series employs a special manufacturing process to ensure high precision, ultra stable performance, and long
life in the harshest environments. In moisture comparison testing the RNCS series outperformed Nichrome Chip
Resistors and demonstrated the anti-corrosive claims characterized by Tantalum Nitride resistor products.
Electrical Specifications
Type / Code
Package
Size
Power Rating
(Watts) @ 70°C
Maximum
Working
Voltage*
25
Maximum
Overload
Voltage
50
Resistance
Temperature
Coefficient
±50 ppm/°C
±25 ppm/°C
±50 ppm/°C
±25 ppm/°C
±50 ppm/°C
±25 ppm/°C
±50 ppm/°C
±25 ppm/°C
±50 ppm/°C
±25 ppm/°C
±50 ppm/°C
±25 ppm/°C
Resistance
Range
Resistance
Tolerance
±0.10%
±0.25%
±0.50%
±0.10%
±0.25%
±0.50%
±0.10%
±0.25%
±0.50%
±0.10%
±0.25%
±0.50%
±0.10%
±0.25%
±0.50%
±0.10%
±0.25%
±0.50%
RNCS 10
0402
0.063W
25Ω – 25K
RNCS 16
0603
0.100W
50
100
25Ω – 332K
RNCS 20
0805
0.125W
100
200
25Ω – 800K
RNCS 32
1206
0.250W
150
300
25Ω – 1M
RNCS 57
2010
0.500W
150
300
25Ω – 1M
RNCS 63
2512
1.000W
150
300
25Ω – 1M
* Lesser of
√PR
or maximum working voltage.
How to Order
RNCS
SEI Type
20
Code
T9
TCR
4.75K
Nominal Resistance
0.5%
Tolerance
R
Packaging
Code
10
16
20
32
57
63
Wattage
0.063
0.100
0.125
0.250
0.500
1.000
Size
0402
0603
0805
1206
2010
2512
TCR
T2 = 50ppm
T9 = 25ppm
Tolerance
±0.10%
±0.25%
±0.50%
Values
E96,E24
E96,E24
E96,E24
Styles
10
16, 20, 32
57, 63
Pkg Qty
10,000
5,000
1,000
4,000
1,000
Code Description
R
R
I
R
I
7" reel
Toll Free: (888) SEI-SEIS
(888) 734-7347
www.seielect.com
19
email: marketing@seielect.com
RNCS Series — Anti-Corrosive Tantalum Nitride Replacement
Mechanical Specifications
Type / Code
RNCS 10
RNCS 16
RNCS 20
RNCS 32
RNCS 57
RNCS 63
L
Body Length
0.039 ± 0.002
1.00 ± 0.05
0.063 ± 0.008
1.60 ± 0.20
0.079 ± 0.008
2.00 ± 0.20
0.126 ± 0.008
3.20 ± 0.20
0.193 ± 0.006
4.90 ± 0.15
0.246 ± 0.006
6.30 ± 0.15
W
Body Width
0.020 ± 0.002
0.50 ± 0.05
0.032 ± 0.008
0.80 ± 0.20
0.049 ± 0.008
1.25 ± 0.20
0.063 ± 0.008
1.60 ± 0.20
0.09 ± 0.006
2.40 ± 0.15
0.122 ± 0.006
3.10 ± 0.15
H
Body Height
0.014 ± 0.002
0.35 ± 0.05
0.016 ± 0.004
0.40 ± 0.10
0.016 ± 0.004
0.40 ± 0.10
0.020 ± 0.004
0.50 ± 0.10
0.024 ± 0.004
0.60 ± 0.10
0.024 ± 0.004
0.60 ± 0.10
a
Top Termination
0.008 ± 0.004
0.20 ± 0.10
0.012 ± 0.008
0.30 ± 0.20
0.016 ± 0.008
0.40 ± 0.20
0.020 ± 0.012
0.50 ± 0.30
0.024 ± 0.012
0.60 ± 0.30
0.024 ± 0.012
0.60 ± 0.30
b
Bottom Termination
0.010 ± 0.002
0.25 ± 0.10
0.012 ± 0.008
0.30 ± 0.20
0.016 ± 0.008
0.40 ± 0.20
0.016 ± 0.008
0.40 ± 0.20
0.020 ± 0.010
0.50 ± 0.25
0.020 ± 0.010
0.50 ± 0.25
Units
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
Performance Characteristics
Test Results
Test
Test Conditions
Size
0603 / 0805 / 1206
/ 2012 / 2512
≤±0.02%
≤±0.02%
≤±0.05%
≤±0.05%
≤±0.05%
≤±0.02%
Size 0402
≤±0.1%
≤±0.1%
≤±0.25%
≤±0.5%
≤±0.5%
≤±0.1%
Short Time Overload
Thermal Shock
Load Life
Humidity (Steady State)
Resistance to Dry Heat
Resistance to Soldering Heat
*Storage Temperature: 25 ± 3°C; Humidity <80%RH
RCWV * 2.5 or Max Overloading Voltage, 2 seconds
MIL - STD - 202F Method 107G
-55°C - 125°C, 100 Cycles
MIL - STD - 202F Method 108A
RCWV, 70°C, 1.5 hours ON, 0.5 hours OFF, total 1000 - 1048 hours
MIL - STD - 202F Method 103B
40°C, 90-95% RH, RCWV 1.5 hours ON, 0.5 hours OFF, total 1000 -1048 hours
JIS - C 5202 - 7.2
1000 hours @ +125°C without load
MIL - STD - 202F Method 210E
260 ± 5°C, 10 ± 1 second
Toll Free: (888) SEI-SEIS
(888) 734-7347
www.seielect.com
20
email: marketing@seielect.com
Test/Measurement
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