Military and Space Established Reliability
Vishay Foil Resistors
Bulk Metal
®
Foil Technology
RNC90Y and RNC90Z (Z-Foil) to MIL-PRF-55182/9
www.vishay.com For any questions, contact: foil@vishay.com Document Number: 63007
2 Revision: 03-Sep-08
FIGURE 1 - COMPARISON OF RNC90Y TO RNC90Z TEMPERATURE COEFFICIENT OF RESISTANCE
+ 160
0
- 160
+ 100
- 1000
ΔR/R (ppm)
Temperature (°C)
Specification ± 2 ppm/°C
- 200
+ 300
- 1000
RNC90Z
+ 1000
- 55
25
125 175
- 300
+ 200
+ 400
0
- 400
+ 1000
- 1000
ΔR/R (ppm)
Temperature (°C)
Specification ± 5 ppm/°C
- 500
+ 500
± 10 ppm/°C
- 1000
RNC90Y
+ 1000
- 55
25
125 175
FIGURE 2 - TRIMMING TO VALUES
(Conceptual Illustration)
Mutual Inductance
Reduction due
to Change in
Current Direction
Current Path
Before Trimming
Note: Foil shown in black, etched spaces in white
Interloop Capacitance
Reduction in Series
Trimming Process
Removes this Material
from Shorting Strip Area
Changing Current Path
and Increasing
Resistance
Current Path
After Trimming
FIGURE 3 - POWER DERATING CURVE
200
150
100
50
0
- 50 - 25 0 + 25 + 50 + 75 + 100 + 125 + 150 + 175
Ambient Temperature °C
Percent of Rated Power
+ 70 °C
Rated Power
FIGURE 4 - IMPRINTING AND DIMENSIONS
Note
1. 0.200" (5.08 mm) lead spacing available - specify RNC90T for RNC90Y, and RNC90S for RNC90Z
RNC90Y and RNC90Z Military Approved Resistors
W
Lead Material
#22 AWG
(0.025 Dia.)
Solder Coated
Copper
Side View
Resistance
Value Code
XXXXX
100R01
B R
LL
SW
Model Number
Failure Rate Code
(Not Present If
Non-Qualified)
Resistance
Tolerance
Code
Rear View
LS
1)
Jan Designator
(Non Present If
Non-Qualified)
VISHAY
18612
XXXXX J
ST
H
L
Manufacturers
Identification
Number
Mfr. Code
B
Factory
07
Year
11
Week
Front View
