Special coatings that provide a cushioning layer which isolates
the resistive element from external stresses and moisture
Electrostatic discharge (ESD) above 25 000 V
Non inductive, non capacitive design
Current noise < - 42 dB
Prototype sample available from 72 h
INTRODUCTION
Military Established Reliability resistors from Vishay Foil
Resistors are available in resistance values from 4.99
through 121 k and for tolerances from ± 0.005 % to ± 1.0
%. The same resistors are also available as a non-qualified
product for customers desiring higher or lower resistance
values and the same or better performance capabilities. (See
table 2) Both the qualified and the non-qualified version are
manufactured on the same production line facilities and are
subjected to the same process, lot control, conditioning, and
GRP A (100 %) screening. Qualified versions receive
additional MIL Group B and C testing.
TABLE 1 - SPECIFICATIONS COMPARISON
SPECIFICATION
Temperature
Coefficient of
Resistance
Resistance Range
Failure Rate
Load-Life Stability
0.3 W at + 125 °C
at 2000 h
at 10 000 h
Current Noise
High-Frequency
Operation
Rise Time
Inductance
3)
(L)
Capacitance (C)
Voltage
Coefficient
Working Voltage
4)
Thermal EMF
5)
RNC90Y (QUALIFIED)
RNC90Z (QUALIFIED)
S555 (NON-QUALIFIED)
MIL-PRF-55182/9
MIL-PRF-55182/9
VFR PERFORMANCE
CHARACTERISTIC Y LIMITS CHARACTERISTIC Z LIMITS
LIMITS
± 5 ppm/°C
± 2 ppm/°C
± 5 ppm/°C
(- 55 °C to + 125 °C)
(- 55 °C to + 175 °C)
(- 55 °C to + 125 °C)
± 10 ppm/°C
(+ 125 °C to + 175 °C)
4.99
to 121 k
Level R
30.1
to 121 k
Level R
1
to 150 k
Not specified
Z555 (NON-QUALIFIED)
VFR PERFORMANCE
LIMITS
± 3 ppm/°C ± 2.5 ppm/°C ± 2 ppm/°C
(- 55 °C to + 125 °C)
4.99
to
25
> 25
to
80
Not specified
> 80
± 0.05 % maximum
R
± 0.5 % maximum
R
Not specified
± 0.05 % maximum
R
± 0.5 % maximum
R
Not specified
± 0.015 % maximum
R
2)
± 0.05 % maximum
R
2)
- 40 dB minimum
1.0 ns at 1 k
0.1 µH maximum
0.08 µH typical
1.0 pF maximum
0.5 pF typical
0.0001 %/V
300 V maximum
0.1 µV/°C maximum
1 µV/W maximum
± 0.015 % maximum
R
2)
± 0.05 % maximum
R
2)
- 40 dB minimum
1.0 ns at 1 k
0.1 µH maximum
0.08 µH typical
1.0 pF maximum
0.5 pF typical
0.0001 %/V
300 V maximum
0.1 µV/°C maximum
1 µV/W maximum
Not specified
Not specified
Not specified
0.0005 %/V
300 V maximum
Not specified
Not specified
Not specified
Not specified
0.0005 %/V
300 V maximum
Not specified
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. µV/°C relates to EMF due to lead temperature differences and µV/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
Revision: 30-Jul-12
For any questions, contact:
foil@vishaypg.com
www.foilresistors.com
1
Military and Space Established Reliability
Vishay Foil Resistors
FIGURE 1 - COMPARISON OF RNC90Y TO RNC90Z TEMPERATURE COEFFICIENT OF RESISTANCE
+ 1000
RNC90Y
+ 1000
+ 1000
RNC90Z
+ 1000
+ 500
+ 400
ΔR/R
(ppm)
ΔR/R
(ppm)
+ 160
0
- 160
+ 300
+ 200
0
- 200
- 300
- 400
- 500
- 1000
- 55
25
Temperature (°C)
125
- 1000
175
- 1000
- 55
25
Temperature (°C)
125
- 1000
175
Specification ± 5 ppm/°C ± 10 ppm/°C
Specification ± 2 ppm/°C
FIGURE 2 - TRIMMING TO VALUES
(Conceptual Illustration)
FIGURE 3 - POWER DERATING CURVE
+ 70 °C
Interloop Capacitance
Reduction in Series
Current Path
Before Trimming
Current Path
After Trimming
Trimming Process
Removes this Material
from Shorting Strip Area
Changing Current Path
and Increasing
Resistance
Percent of Rated Power
200
150
100
50
0
- 50
Rated Power
Mutual Inductance
Reduction due
to Change in
Current Direction
- 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
L
VFR
S8016
XXXXX J
Side View
Manufacturers
Identification
Number
W
Resistance
Tolerance
Code
Lead Material
#22 AWG
(0.025 Dia.)
Solder Coated
Copper
Rear View
Model Number
XXXXX
100R01
B
R
H
Mfr. Code
07
11
B
Factory Year Week
Resistance
Value Code
Failure Rate Code
(Not Present If
Non-Qualified)
LL
ST
Jan Designator
(Non Present If
Non-Qualified)
SW
LS
1)
Note
1. 0.200" (5.08 mm) lead spacing available - specify RNC90T for RNC90Y, and RNC90S for RNC90Z
www.foilresistors.com
2
For any questions, contact:
foil@vishaypg.com
Document Number: 63007
Revision: 30-Jul-12
Military and Space Established Reliability
Vishay Foil Resistors
TABLE 2 - MODEL SELECTION
STANDARD RESISTANCE
TOLERANCE
TIGHTEST
LOOSEST
%
%
30.1 to 121K
± 0.005
± 1.0
RNC90Y
16.2 to 30.0
± 0.05
± 1.0
4.99 to 16.0
± 0.1
± 1.0
RNC90Z
30.1 to 121K
± 0.005
± 1.0
30.1 to 121K
± 0.005
± 1.0
20 to < 30.1
± 0.01
± 1.0
5 to < 20
± 0.05
± 1.0
S555
(NON QPL)
2 to < 5
± 0.1
± 1.0
1 to < 2
± 0.5
± 1.0
> 121K to 150K
± 0.005
± 1.0
30.1 to 121K
± 0.005
± 1.0
Z555
20 to < 30.1
± 0.01
± 1.0
(NON QPL)
4.99 to < 20R
± 0.05
± 1.0
Note
MODEL
NUMBER
RESISTANCE
RANGE
()
FAILURE
RATE
M, P, R
(See
Table 3)
AVERAGE
WEIGHT
(g)
at + 70 °C at + 125 ° C
0.6 W
0.6 W
0.3 W
0.3 W
0.6
0.6
W: 0.105 ± 0.010
L: 0.300 ± 0.010
H: 0.326 ± 0.010
ST: 0.015 ± 0.005
SW: 0.040 ± 0.005
LL: 1.000 ± 0.125
LS: 0.150 ± 0.005
2.67 ± 0.25
7.62 ± 0.25
8.28 ± 0.25
0.38 ± 0.13
1.02 ± 0.13
25.4 ± 3.18
3.81 ± 0.13
AMBIENT
POWER RATING
DIMENSIONS
INCHES
mm
-
0.6 W
0.3 W
0.6
-
-
0.4 W
0.6 W
0.2 W
0.3 W
0.6
0.6
• S555 and Z555 units are manufactured on the same production line facilities and are subjected to all the same process and lot control
requirements imposed on RNC90Y (Z) version, as well as all of the special screening, environmental conditioning and documentation
stipulations outlined in MIL-PRF 55182/9
TABLE 3 - GLOBAL PART NUMBER INFORMATION
NEW GLOBAL PART NUMBER: Y1189100R500AR0L (preferred part number format)
DENOTES PRECISION
Y
VALUE
R
=
K
= k
LIFE FAILURE RATE (LFR)
(1)
R
= ± 0.01 %
P
= ± 0.1 %
M
= ± 1.0 %
AER
(2)
0
= standard
1 - 999
= custom
Y
1
1
8
9
1
0
0
R
5
0
0
A
R
0
L
PRODUCT CODE
1189
= RNC90Z
0089
= RNC90Y
1508
= RNC90T
1506
= RNC90S
0088
= S555
1288
= Z555
RESISTANCE TOLERANCE
V
= ± 0.005 %
T
= ± 0.01 %
A
= ± 0.05 %
B
= ± 0.1 %
D
= ± 0.5 %
F
= ± 1.0 %
PACKAGING
L
= bulk pack
R
= tape and reel
FOR EXAMPLE: ABOVE GLOBAL ORDER Y1189 100R500 A R 0 L:
TYPE: RNC90Z
VALUE: 100.5
ABSOLUTE TOLERANCE: ± 0.05 %
LIFE FAILURE RATE (LFR): ± 0.01 %
AER: standard
PACKAGING: bulk pack
HISTORICAL PART NUMBER: RNC90Z 100R50 A R B (will continue to be used)
RNC90Z
MODEL
RNC90Z
RNC90S
RNC90Y
RNC90T
S555
Z555
Note
(1)
Applicable
(2)
For
100R50
OHMIC VALUE
100.5
A
RESISTANCE
TOLERANCE
V
= ± 0.005 %
T
= ± 0.01 %
A
= ± 0.05 %
B
= ± 0.1 %
D
= ± 0.5 %
F
= ± 1.0 %
R
LIFE FAILURE
RATE (LFR)
(1)
R
= ± 0.01 %
P
= ± 0.1 %
M
= ± 1.0 %
B
PACKAGING
B
= bulk pack
only for QPL part. For S555 and Z555 please assign "0" instead.
C++ 属于面向对象的编程语言，OOP的思想不必多说，特别对于复杂的软件工程来说，利用OOP绝对是事半功倍，相对于传统的C来说； 当然用C来写单片机程序无可厚非，已经延续了一个传统，从大学时学的开始到工作岗位，好多人都是一直用C来做，但是既然Keil支持C++编译， 可以用C++来编写你的代码，可以利用高级语言来结构化，清晰化你的程序，为嘛不用呢！哈哈，个人看法！下面进入正题： C+...[详细]
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