Rev Date: 08/25/2011 1 www.seielect.com
This specification may be changed at any time without prior notice marketing@seielect.com
Please confirm technical specifications before you order and/or use.
RNCS Series
Anti-Corrosive Tantalum Nitride Replacement Resistor
Stackpole Electronics, Inc.
Resistive Product Solutions
Features:
Special Passivation for moisture sensitive applications
Absolute TCR’s to ±25 ppm/ºC
Available in industry standard sizes from 0402 to 2512
Resistance range from 10 to 1M
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.
100
75
50
25
030 60
Ambient Temperature (ºC)
90 120 150 180
Percent Rated Power (%)Percent Rated Power (%)
Maximum Maximum Resistance
Working Overload Temperature
Voltage(1) Voltage Coefficient 0.1% 0.25% 0.5%
±15 ppm/ºC 49.9 - 12K 49.9 - 12K 49.9 - 12K
±25 ppm/ºC 25 - 25K 25 - 25K 25 - 25K
±50 ppm/ºC 25 - 25K 25 - 25K 25 - 25K
±15 ppm/ºC
±25 ppm/ºC
±50 ppm/ºC
±15 ppm/ºC
±25 ppm/ºC
±50 ppm/ºC
±15 ppm/ºC
±25 ppm/ºC
±50 ppm/ºC
±15 ppm/ºC 25 - 1M 25 - 1M 25 - 1M
±25 ppm/ºC 10 - 1M 10 - 1M 10 - 1M
±50 ppm/ºC 10 - 1M 10 - 1M 10 - 1M
±15 ppm/ºC 25 - 1M 25 - 1M 25 - 1M
±25 ppm/ºC 10 - 1M 10 - 1M 10 - 1M
±50 ppm/ºC 10 - 1M 10 - 1M 10 - 1M
(
1
)
Lesser of
PR or maximum workin
g
volta
g
e.
(
2
)
Hi
g
her
p
ower ratin
g
for each
p
acka
g
e size is valid if ambient tem
p
80ºC and terminal tem
p
105ºC
10 - 1M
300VRNCS2512 63 0.5W
(1W(2)) 150V
300VRNCS2010 57 0.25W
(0.5W(2)) 150V
300V 10 - 1M 10 - 1M 10 - 1MRNCS1206 32 0.125W
(0.25W(2)) 150V
200V 10 - 1MRNCS0805 20 0.1W
(0.125W(2)) 100V 10 - 1M
100V 25 - 332K 25 - 332K 25 - 332KRNCS0603 16 0.063W
(0.1W(2)) 50V
50VRNCS0402 10 0.063W 25V
Type / Code Old Pkg
Code
Power Rating
(Watts) @ 70ºC
Ohmic Range () and Tolerance
Electrical Specifications
Power Derating Curve:
Rev Date: 08/25/2011 2 www.seielect.com
This specification may be changed at any time without prior notice marketing@seielect.com
Please confirm technical specifications before you order and/or use.
RNCS Series
Anti-Corrosive Tantalum Nitride Replacement Resistor
Stackpole Electronics, Inc.
Resistive Product Solutions
LWH a b
Body Length Body Width Body Height Top Termination Bottom Termination
0.039 ± 0.002 0.020 ± 0.002 0.012 ± 0.002 0.008 ± 0.004 0.008 ± 0.002 inches
1.00 ± 0.05 0.50 ± 0.05 0.30 ± 0.05 0.20 ± 0.10 0.20 ± 0.10 mm
0.061 ± 0.008 0.032 ± 0.008 0.018 ± 0.004 0.012 ± 0.008 0.012 ± 0.008 inches
1.55 ± 0.20 0.80 ± 0.20 0.45 ± 0.10 0.30 ± 0.20 0.30 ± 0.20 mm
0.079 ± 0.008 0.049 ± 0.008 0.022 ± 0.004 0.012 ± 0.008 0.016 ± 0.008 inches
2.00 ± 0.20 1.25 ± 0.20 0.55 ± 0.10 0.30 ± 0.20 0.40 ± 0.20 mm
0.120 ± 0.008 0.061 ± 0.008 0.022 ± 0.004 0.017 ± 0.012 0.014 ± 0.008 inches
3.05 ± 0.20 1.55 ± 0.20 0.55 ± 0.10 0.42 ± 0.30 0.35 ± 0.20 mm
0.193 ± 0.006 0.090 ± 0.006 0.022 ± 0.004 0.024 ± 0.012 0.020 ± 0.010 inches
4.90 ± 0.15 2.40 ± 0.15 0.55 ± 0.10 0.60 ± 0.30 0.50 ± 0.25 mm
0.246 ± 0.006 0.122 ± 0.006 0.022 ± 0.004 0.024 ± 0.012 0.020 ± 0.010 inches
6.30 ± 0.15 3.10 ± 0.15 0.55 ± 0.10 0.60 ± 0.30 0.50 ± 0.25 mm
Unit
RNCS0402
RNCS0603
Type / Code
RNCS2512
RNCS0805
RNCS1206
RNCS2010
Mechanical Specifications
Size
0603 / 0805 /1206 Size 0402
2012 / 2512
Short Time Overload RCWV 2.5 or Max Overloading Voltage, 2 seconds (1) ±0.02% ±0.1%
MIL - STD - 202F Method 107G
-55ºC - 125ºC, 100 Cycles
MIL - STD - 202F Method 108A
RCWV, 70ºC, 1.5 hours ON, 0.5 hours OFF, total 1000 - 1048 hours
MIL - STD - 202F Method 103B
40ºC, 90-95% RH, RCWV 1.5 hours ON, 0.5 hours OFF, total 1000 - 1048 hours
JIS - C 5202 - 7.2
1000 hours @ +125ºC without load
MIL - STD - 202F Method 210E
260 ± 5ºC, 10 ± 1 second
(1) Storage Temperature: 25 ± 3ºC; Humidity <80% RH
±0.1%
±0.25%
±0.5%
±0.5%
Load Life
Humidity
(Steady State)
Resistance to
Dry Heat
±0.1%
Resistance to
Soldering Heat ±0.02%
Thermal Shock
Test Test Conditions
Test Results
±0.02%
±0.05%
±0.1%
±0.05%
Performance Characteristics
Rev Date: 08/25/2011 3 www.seielect.com
This specification may be changed at any time without prior notice marketing@seielect.com
Please confirm technical specifications before you order and/or use.
RNCS Series
Anti-Corrosive Tantalum Nitride Replacement Resistor
Stackpole Electronics, Inc.
Resistive Product Solutions
How to Order
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
RNCS0805DTE4K75
Size
Anti-corrosive 0402 Code Tol Value Code Quantity Code ppm
Titanium-nitride 0603 B 0.1% 10,000 S 15
Replacement 0805 C 0.25% 5,000 E 25
1206 D 0.5% 4,000 C 50
2010
2512
RNCS
T
0402
0603, 0805, 1206
2010, 2512
7" Reel
Paper Tape
E192
(1)
, E96, E24
(1) E192 values are unmarked
0.063W
0.1W
1,000
0603, 0805, 1206
2010, 2512
10 ohm = 10R0
1 Mohm = 1M00
0.25W
800 Kohm = 800K
0.5W K
1W
Four characters
with the multiplier
used as the
decimal holder.
0.125W
SizeDescription
Product Series Power TCR Resistance ValuePackagingTolerance
Legacy Part Number (before January 3, 2011):
Nominal
Resistance
4.75K
Type Description Code Wattage Size Tol
V
alues SEI Types Pkg Qty Code Description
10 0.063W 0402 T2 50ppm ±0.1% 0402 10,000 R
16 0.1W 0603 T9 25ppm ±0.25% 5,000 R
20 0.125W 0805 TD 15ppm ±0.5% 1,000 I
32 0.25W 1206 4,000 R
57 0.5W 2010 1,000 I
63 1W 2512
T9
TCR
7" reel
paper tape
0603, 0805,
1206
2010, 2512
0.5% R
(1) E192 values are unmarked
E192(1), E96, E24
SEI Type Code Tolerance PackagingTCR
RNCS 20
Anti-corrosive
Titanium-Nitride
Replacement
RNCS