ULTRA PRECISION WIREWOUND RESISTORS
RESISTORS CAPACITORS COILS DELAY LINES
SA, MA, PC, & Q SERIES
Term.W is
Industry’s widest range of precision
RoHS
compliant
wirewound resistors! .1
Ω
to 25M
Ω,
50mW
RoHS
& 260°C
compatible
to 2W, ±0.005% to 1%, TC’s to 2PPM
All-welded construction, negligible noise, low thermal EMF
Available on RCD’s exclusive
SWIFT
TM
delivery program!
Series SA (standard), MA (mini), PC (radial), and Q (economy) are
designed for precision DC
5
circuits, such as Military & Space applications.
Precision WW resistors are often utilized to replace metal film or foil types,
enabling greater overload capability and lower cost. All models receive
preconditioning thereby enabling excellent stability and reliability levels.
Performance (Opt ER, typ)
Load Life
Short Time Overload
High Temp Exposure
Moisture
Operating Temp
Shelf Life Stability
OPTIONS
Option P: Increased pulse/overload capability
Option HS: High speed/fast rise time
Opt. ER: 100-hr stabilization burn-in
4
Matched tolerances, T.C. tracking to 1ppm/°C
Dozens of additional modifications are available... special
marking, positive TC, hermetic seal, 4-terminal design, low
inductance, etc. Customized designs are an RCD specialty!
LD
↑
B
↓
↑
B
↓
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
→
↓
↑
↓
FIG. 1
A
FIG. 2
↑
LD
LS
↑
FIG. 3
LS
C
↑
FIG. 4
↓
↑
LD
LS
↓
↑
←
1.25 [32] Min.
→←
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
→
←
A
→←
.75 [19] Min.
→
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
→←
.75 [19] Min.
→
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
C
.200
→
←
.10
→
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
800
400
800
400
800
400
800
900
1200
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
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
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.
1
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).
% RATED WATT
RCD Type
Options:
P, HS, ER (leave blank if standard)
Resis. Code:
3 digits &multiplier (R100= .1Ω, 1R00= 1Ω,
1000= 100Ω, 1001= 1KΩ, 1002=10K, 1003=100K,1004=1M)
Tolerance Code:
F=1%, D=0.5%, C=0.25%,
B=0.1%, A=0.05% Q=0.02%, T=0.01%, V=0.005%
Packaging
: B = bulk, T = Tape & Reel
Optional Temp. Coefficient
- leave blank for standard
(2 = ±2ppm/°C, 3=3ppm, 5=5ppm, 10=10ppm, 20=20ppm)
Termination:
W= Pb-free, Q= Sn/Pb (leave blank if either is acceptable)
100
75
50
25
0 40
70
80
90
100 110
AMBIENT TEMPERATURE (°C)
120
125
130 140
145
150
160
B
A
RCD Components Inc,
520 E.Industrial Park Dr, Manchester, NH, USA 03109
rcdcomponents.com
Tel: 603
-
669
-
0054 Fax: 603
-
669
-
5455 Email:sales@rcdcomponents.com
FA017E Sale of this product is in accordance with GF-061. Specifications subject to change without notice.
42
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