Dozens of additional modifications are available...
special marking, positive TC, hermetic seal, 4-terminal,
low inductance, etc. Custom designs are RCD’s specialty!
LD
↑
B
↓
↑
B
↓
Series SA (standard), MA (mini), PC (radial), and Q (economy) are
designed for precision circuits (DC
5
and low frequency AC). The standard
construction features well-proven wirewound technology. Customized WW
and NiCr film designs are available for high-frequency operation. All
models are preconditioned thereby enabling excellent stability/reliability.
Performance (Opt ER, typ)
Load Life
Short Time Overload
High Temp Exposure
Moisture
Operating Temp
Shelf Life Stability
SA/MA/PC
±.03%
±.005%
±.05%
±.02%
-55 to
+1
45°C
±.002%/year
Q Series
±.05
%
±.02
%
±.1
%
±.03
%
-55 to +160°C
±.004%/year
Temp Coef
≥
10
Ω
1 - 9.9
Ω
<1
Ω
↓
20ppm (2,3,5,10 avail)
30ppm (5,10,20 avail)
90ppm (10,20,30 avail)
↓
↑
LD
↑
B
↓
20ppm (2,3,5,10 avail)
30ppm (5,10,20 avail)
90ppm (10,20,30avail)
↓
↑
B
↓
↓
↑
↓
←
A
→
LD
.200
.10
↓
↑ ↑
FIG. 1
A
FIG. 2
↑
LD
LS
↑
FIG. 3
LS
C
↑
FIG. 4
LS
↓
←
1.25 [32] Min.
→←
→
←
A
→←
.75 [19] Min.
→
←
A
→←
.75 [19] Min.
→
C
RCD
TYPE
S A 100
S A 101
S A 102
S A 103
S A 104
S A 105
S A 106
S A 107
S A 108
S A 109
SA110
S A 111
MA200
MA201
MA202
MA203
MA204
MA205
MA206
MA207
Q55
Q60
Q65
Q70
Q75
P C 400
P C 401
P C 402
P C 404
P C 405
P C 406
P C 407
P C 408
P C 451
P C 452
P C 454
P C 451G
1
Wattage Rating
FIG. MIL TYPE
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
3
3
3
4
RB/RBR56
RB/RBR55
RB/RBR54
-
RB/RBR53
RB/RBR52
-
-
-
RB/RBR57
RB/RBR58
RB/RBR59
-
-
-
-
-
-
-
-
RN/RNR55
RN/RNR60
RN/RNR65
RN/RNR70
RN/RNR75
-
RB/RBR71
-
-
-
RB70
-
-
RNC90
-
-
-
RCD
2
,4
MIL
4
Maximum
Voltage
2,3
200
400
400
500
400
600
400
700
400
800
900
1000
100
100
100
100
150
200
200
200
200
300
350
500
600
200
400
400
400
400
400
400
400
300
350
500
300
Res. Range
0.1
Ω
to ~
1.2 Meg
2.0 Meg
4.0 Meg
5.0 Meg
6.0 Meg
10.0 Meg
6.0 Meg
12.0 Meg
7.0 Meg
15.0 Meg
20.0 Meg
25.0 Meg
200K
250K
300K
400K
800K
900K
900K
1.2 Meg
100K
150K
200K
300K
500K
500K
750K
1 Meg
1 Meg
1 Meg
2 Meg
2 Meg
2 Meg
1 Meg
25K
100K
1 Meg
A
±.062 [ 1.6]
.350 [ 8.9]
.500 [12.7]
.750 [19.1]
1.00 [25.4]
.750 [19.1]
1.00 [25.4]
.675 [17.1]
1.00 [25.4]
.675 [17.1]
1.00 [25.4]
1.50 [38.1]
2.00 [50.8]
.250 [6.35]
.300 [7.62]
.250 [6.35]
.312 [7.92]
.380 [9.65]
.500 [12.7]
.380 [9.65]
.500 [12.7]
.250 [6.35]
.380 [9.65]
.520 [13.20]
.750 [19.10]
1.02 [25.9]
.250 [6.35]
.312 [7.29]
.375 [9.52]
.500 [12.7]
.375 [9.52]
.500 [12.7]
.500 [12.7]
.625 [15.9]
.336 [8.5] max
.370 [9.4] max
.390 [9.9] max
.336 [8.5] max
B
±.025 [.64]
.250 [6.35]
.250 [6.35]
.250 [6.35]
.250 [6.35]
.375 [9.52]
.375 [9.52]
.437 [11.1]
.437 [11.1]
.500 [12.7]
.500 [12.7]
.500 [12.7]
.500 [12.7]
.100 [2.54]
.100 [2.54]
.125 [3.18]
.125 [3.18]
.142 [3.61]
.160 [4.06]
.187 [4.75]
.187 [4.75]
.105 [2.67]
.142 [3.61]
.188 [4.78]
.250 [6.35]
.375 [9.53]
.250 [6.35]
.250 [6.35]
.250 [6.35]
.250 [6.35]
.375 [9.52]
.375 [9.52]
.500 [12.7]
.500 [12.7]
.320 [8.1] max
.610 [15.5] max
1.12 [28.4] max
.320 [8.1] max
LD
±.003 [.08]
.032 [.81]
.032 [.81]
.032 [.81]
.032 [.81]
.032 [.81]
.032 [.81]
.032 [.81]
.032 [.81]
.032 [.81]
.032 [.81]
.032 [.81]
.032 [.81]
.020 [.51]
.020 [.51]
.023 [.58]
.023 [.58]
.023 [.58]
.023 [.58]
.025 [.64]
.025 [.64]
.023 [.58]
.023 [.58]
.025 [.64]
.032 [.81]
.032 [.81]
.023 [.58]
.023 [.58]
.023 [.58]
.023 [.58]
.023 [.58]
.032 [.81]
.032 [.81]
.032 [.81]
.023 [.58]
.023 [.58]
.028 ±.004
.023 [.58]
LS
±.015 [.4]
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
.200 [5.08]
.200 [5.08]
.200 [5.08]
.200 [5.08]
.200 [5.08]
.200 [5.08]
.300 [7.62]
.300 [7.62]
.150 [3.81]
.500 [12.7]
.900 [22.9]
.150 [3.81]
C
(Max)
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
.120
.135
.260
.120
.25
.33
.50
.75
.60
1.00
.60
1.25
.60
1.25
1.50
2.00
.05
.05
.10
.10
.12
.125
.15
.2
.125
.250
.500
.750
1.00
.15
.25
.25
.30
.33
.33
.50
.63
0.3
1.0
2.0
0.3
.125
.150
.250
-
.33
.50
-
-
-
.75
1.00
1.25
-
-
-
-
-
-
-
-
.125
.250
.500
.750
1.00
-
.125
-
-
-
.250
-
-
0.3
-
-
-
Military p/n’s are given for reference only and do not imply qualification or exact interchangeability.
2
Increased ratings avail.
3
Max. voltage determined by E=(PR)
½
, E not to exceed value
listed.
4
Option ER burn-in is performed at Mil-power rating and 25°C ambient. Additional burn-in and Mil-screening options available.
5
Standard reactance levels are quite high limiting
use to DC or AC circuits <50KHz typ. (depending on size and resistance value). Specialty designs available for use at high frequencies, consult factory.
P/N DESIGNATION:
MA207
- 1003 - A B
W
POWER DERATING:
Series SA/MA/PC40 resistors shall be derated
according to Curve A; Series Q & PC45 per Curve B (resistors with 0.1% or
tighter tolerance to be derated 50% per Mil-Std-199).
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