OPEN-AIR LOW VALUE CURRENT SHUNT RESISTORS
0.001Ω to 0.15Ω, 1 WATT to 5 WATT
RESISTORS CAPACITORS COILS DELAY LINES
OA SERIES
RoHS
Term.W is
RoHS
compliant
& 260°C
compatible
New narrow profile design
offers significant space
savings!
Industry’s widest range and lowest cost!
Tolerances to ±0.5%, TC’s to ±20ppm
Available on exclusive
SWIFT
TM
delivery program!
Option S: Axial lead (unformed element)
Option E: Low Thermal EMF
Option A: Stand-offs formed into lead wires
Optional pin diameters and pin spacing
RCD’s OA series offers cost-effective performance for a wide range of
current shunt/sense applications. The non-insulated open-air design
features non-inductive performance and excellent stability/overload capacity.
Numerous design modifications and cutom styles are available...
current ratings up to 100A, surface mount designs, military screening/
burn-in, marking, insulation, intermediate values, etc. Custom shunts
have been an RCD specialty over 30 years! Contact factory for assistance.
B
2
Option ‘A’ Stand-offs:
Solderable to within
.062” [1.57] of element.
Resis. value measured
.062” [1.57] from element.
For stand-off, specify Opt. A
(e.g. OA2BA, OA5AA). Resis. value
is measured at bottom of stand-off.
.11±.04
[2.8±1]
.15 [3.8]
min.
.125±.062
[3.2± 1.6]
Typical*
A
.150”
Min.
C
Note 1
A
D
Stand-off
width = C+.01”
[.25] min
Typical shape depicted--actual shape may vary within envelope given.
Overall length not to exceed Dim.A +.12” [3]. Dimensions in inches [mm].
* Most values are .125 [3.2] wide, lowest 2W-5W are .187 [4.75] wide,
highest 1W-2W values are .062 [1.6] wide
Note 1
Note 1: resis.
value is tested
3/8” from body
Option ‘S’ Straight Axial Lead Design
(lead length = 1.25” [31.8] min)
SPECIFICATIONS
R C D P o w er
Current Rating
1
Resistance A (lead spacing) ±.040 [1]
B Max.
2
1
Type Rating With Std.Lead With Opt. Lead
R an g e
Standard
Optional
2
OA1A
OA1B
OA2A
OA2B
OA3A
OA5A
1
2
C (lead diameter)
Standard
Optional
20AWG
18AWG
20AWG
18AWG
18AWG
18AWG
D Max.
1W
1W
2W
2W
3W
5W
14A
17A
22A
24A
26A
32A
17A
14A
24A
22A
24A
40A
.001
Ω
-.08
Ω
.001
Ω
-.08
Ω
.001
Ω
-.1
Ω
.001
Ω
-.1
Ω
.001
Ω
-.12
Ω
.40 [10.5] .2"[5], .275" [7] .35 [8.9]
2
.45 [11.4] .2"[5], .275" [7] .30 [7.6]
2
.40 [10.5] .2"[5], .275" [7] .70 [17.8]
2
.60 [15.2] .2"[5], .275" [7] .60 [15.2]
2
.60 [15.2] .2"[5], .275" [7] .90 [22.9]
2
18AWG (Opt. 18) 1.20 [30.5]
20AWG (Opt .20) 1.20 [30.5]
18AWG (Opt. 18) 1.95 [49.5]
20AWG (Opt .20) 1.95 [49.5]
20AWG (Opt .20) 2.50 [63.5]
16AWG (Opt. 16) 2.94 [74.7]
.0025
Ω
-.15
Ω
.80 [20.3] .2"[5], .275" [7] 1.0 [25.4]
2
Units not to exceed wattage or current rating, whichever is less. Current rating is based on standard lead diameter, increased ratings available.
Dim.B applies only to parts formed to the standard lead spacing (increase accordingly for options 80 & 27). Custom pin spacings are available.
STANDARD RESISTANCE VALUES AND CODES
Intermediate values available, most popular values listed in bold:
.001Ω (R001), .0015Ω (R0015), .002Ω (R002), .0025Ω (R0025), .003Ω(R003),
.005Ω
(R005), .0068Ω (R0068), .0075Ω (R0075), .0082Ω (R0082),
.01Ω
(R010 if
Ω
Ω
≤
1%,R01
≥
2%), .012Ω (R012),
.015Ω
(R015),
.02Ω
(R020 if
≤
1%, R02≥2%),
Ω
Ω
≥
.022Ω (R022),
.025Ω
(R025),
.03Ω
(R030 if
≤
1%, R03
≥
2%), .033Ω (R033),
Ω
Ω
.04Ω
(R040 if≤1%, R04
≥
2%),
.05Ω
(R050≤1%, R05≥2%), .068Ω(R068),
Ω
≤
Ω
≤
≥
.07Ω
(R070 if
≤
1%, R07
≥
2%), .075Ω (R075),
.08Ω
(R080 if≤1%, R08
≥
2%),
Ω
Ω
≤
.1Ω
(R100 if≤1%, R10
≥
2%).
Ω
≤
TYPICAL OPERATING CHARACTERISTICS:
TEMPERATURE RANGE: -55 to +275°C
DERATING: derate power & current rating by 0.4%/°C above 25°C
OVERLOAD: 5 x rated power for 5 seconds
LOAD LIFE @ 25°C (1000 hrs): 1%∆R
MOISTURE No Load (1000 hrs): 1%
∆R
INDUCTANCE: <10nH
TEMP. CYCLING -40°C to+125°C (1000 cycles): 1%
∆R
TOLERANCE AND T.C. OPTIONS
Resistance Range
.001 to .0049
Ω
(
OA5A=.0025 to .005
Ω)
.005 to .0099
Ω
(
OA5A=.006 to .015
Ω)
.010 to .024
Ω (
OA5A=.016
to .025
Ω)
.025 to .049
Ω
.05 to .10
Ω
Tol. Range
3% to 10%
1% to 10%
1% to 10%
1% to 10%
1% to 10%
Temp. Coef. (ppm/°C)
Typical
900ppm
600ppm
200ppm
100ppm
50ppm
Best Avail.*
200ppm
100ppm
50ppm
30ppm
20ppm
P/N DESIGNATION: OA2A
- R001 - J B
W
RCD Type
Design Options:
S=unformed, E= low
thermal EMF, A=standoffs. Leave blank if std.
Lead Spacing Option:
80=.2” [5mm],
27=.275”[7mm]. Leave blank if std.
Lead Diameter Option:
20=20AWG, 18=18AWG,
16=16AWG. Leave blank if standard.
Resis.Code
(see table): R01, R010, R100, etc.
Tolerance Code:
D=0.5%, F=1%, G=2%, H=3%,J=5%, K=10%
Packaging:
B = bulk (standard)
TC
(see table for options): 20=20ppm, 30=30ppm, 50=50ppm, 101=100ppm,
201=200ppm, 301=300ppm. (leave blank if standard)
Termination:
W=Lead-free, Q=Tin/Lead (leave blank if either is acceptable)
* TC options vary depending on size and value (consult factory for availability)
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
FA007D
Sale of this product is in accordance with GF-061. Specifications subject to change without notice.
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