Military and Space Established Reliability
Vishay Foil Resistors
Bulk Metal Foil Technology
RNC90Y and RNC90Z (Z-Foil) to MIL-PRF-55182/9
FEATURES
QPL product with established reliability (ER): meets
requirements of MIL-PRF-55182/9
Load life stability: 0.005 % for 2000 h, 0.3 W at + 125 C
Temperature coefficient of resistance (TCR): 2 ppm/C max.
(- 55 C to + 175 C)
Resistance tolerance: to 0.005 %
Thermal EMF: < 0.1 V/C
Qualified resistance range: 4.99 to 121 k (RNC90Y)
INTRODUCTION
30.1 to 121 k(RNC90Z)
Military Established Reliability resistors from Vishay Foil
Specially conditioned non-QPL resistors available
Resistors are available in resistance values from 4.99
See data sheet Improved Performance Tested
through 121 k and for tolerances from 0.005 % to 1.0
Fast thermal stabilization
%. The same resistors are also available as a non-qualified
Rise time: 1 ns without ringing
product for customers desiring higher or lower resistance
Special coatings that provide a cushioning layer which isolates
values and the same or better performance capabilities. (See
the resistive element from external stresses and moisture
table 2) Both the qualified and the non-qualified version are
Electrostatic discharge (ESD) above 25 000 V
manufactured on the same production line facilities and are
Non inductive, non capacitive design
subjected to the same process, lot control, conditioning, and
Current noise < - 42 dB
GRP A (100 %) screening. Qualified versions receive
Prototype sample available from 72 h
additional MIL Group B and C testing.
TABLE 1 - SPECIFICATIONS COMPARISON
RNC90Y (QUALIFIED) RNC90Z (QUALIFIED) S555 (NON-QUALIFIED) Z555 (NON-QUALIFIED)
SPECIFICATION MIL-PRF-55182/9 MIL-PRF-55182/9 VFR PERFORMANCE VFR PERFORMANCE
CHARACTERISTIC Y LIMITS CHARACTERISTIC Z LIMITS LIMITS LIMITS
5 ppm/C 2 ppm/C 5 ppm/C
3 ppm/C 2.5 ppm/C 2 ppm/C
Temperature
(- 55 C to + 125 C) (- 55 C to + 175 C) (- 55 C to + 125 C)
Coefficient of
10 ppm/C
Resistance
(- 55 C to + 125 C)
(+ 125 C to + 175 C)
4.99 to > 25 to
Resistance Range 4.99 to 121 k 30.1 to 121 k 1 to 150 k > 80
25 80
Failure Rate Level R Level R Not specified Not specified
Load-Life Stability
0.3 W at + 125 C
2) 2)
at 2000 h 0.05 % maximum R 0.05 % maximum R 0.015 % maximum R 0.015 % maximum R
2) 2)
at 10 000 h 0.5 % maximum R 0.5 % maximum R 0.05 % maximum R 0.05 % maximum R
Current Noise Not specified Not specified - 40 dB minimum - 40 dB minimum
High-Frequency
Operation
Rise Time Not specified Not specified 1.0 ns at 1 k 1.0 ns at 1 k
3)
Inductance (L) Not specified Not specified 0.1 H maximum 0.1 H maximum
0.08 H typical 0.08 H typical
Capacitance (C) Not specified Not specified 1.0 pF maximum 1.0 pF maximum
0.5 pF typical 0.5 pF typical
Voltage
0.0005 %/V 0.0005 %/V 0.0001 %/V 0.0001 %/V
Coefficient
4)
Working Voltage 300 V maximum 300 V maximum 300 V maximum 300 V maximum
5)
Thermal EMF Not specified Not specified 0.1 V/C maximum 0.1 V/C maximum
1 V/W maximum 1 V/W maximum
Notes
1. Qualification and failure rate verification test data is maintained by Vishay Foil and is available upon request. Lot traceability and identification
data is maintained by Vishay Foil for 7 years.
2. Load life R Maximum can be reduced by 80 % through Enhanced Reliability Testing (ERT). Consult our Applications Engineering for details.
3. Inductance (L) due mainly to the leads.
4. Not to exceed power rating of resistor.
5. V/C relates to EMF due to lead temperature differences and V/W due to power applied to the resistor.
6. 0.200" (5.08 mm) lead spacing available - specify RNC90T for RNC90Y, and RNC90S for RNC90Z.
Document Number: 63007 For any questions, contact: foil@vishaypg.com www.foilresistors.com
Revision: 30-Jul-12 1Military and Space Established Reliability
Vishay Foil Resistors
FIGURE 1 - COMPARISON OF RNC90Y TO RNC90Z TEMPERATURE COEFFICIENT OF RESISTANCE
RNC90Y RNC90Z
+ 1000 + 1000 + 1000 + 1000
+ 500
+ 400
+ 300
+ 200
+ 160
0 0
- 160
- 200
- 300
- 400
- 500
- 1000 - 1000 - 1000 - 1000
- 55 25 125 175 - 55 25 125 175
Temperature (C) Temperature (C)
Specification 5 ppm/C 10 ppm/C Specification 2 ppm/C
FIGURE 2 -TRIMMING TO VALUES
FIGURE 3 - POWER DERATING CURVE
(Conceptual Illustration)
+ 70 C
200
Current Path
Interloop Capacitance
Before Trimming
Reduction in Series 150
Rated Power
Current Path
100
After Trimming
Mutual Inductance
Trimming Process
Reduction due
Removes this Material
50
to Change in
from Shorting Strip Area
Current Direction
Changing Current Path
and Increasing
0
Resistance
- 50 - 25 0 + 25 + 50 + 75 + 100 + 125 + 150 + 175
Ambient Temperature C
Note: Foil shown in black, etched spaces in white
FIGURE 4 - IMPRINTING AND DIMENSIONS
RNC90Y and RNC90Z Military Approved Resistors
Front View Side View Rear View
L
W
Model Number
Manufacturers
Identification
Resistance
VFR
XXXXX
Resistance
Number
Value Code
S8016 Tolerance 100R01
H
Code Failure Rate Code
XXXXX J B R
(Not Present If
ST
Non-Qualified)
Mfr. Code
Lead Material
B 07 11
LL
#22 AWG SW
Jan Designator
Factory Year Week (0.025 Dia.)
1) (Non Present If
LS Solder Coated
Non-Qualified)
Copper
Note
1. 0.200" (5.08 mm) lead spacing available - specify RNC90T for RNC90Y, and RNC90S for RNC90Z
www.foilresistors.com For any questions, contact: foil@vishaypg.com Document Number: 63007
2 Revision: 30-Jul-12
R/R (ppm)
R/R (ppm)
Percent of Rated Power