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.
B2
.125±.062 [3.2± 1.6] Typical*
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.
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 Rating1 Resistance A (lead spacing) ±.040 [1] B Max.2 Type Rating1 With Std.Lead With Opt. Lead R an g e Standard Optional2 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
.001Ω-.08Ω .001Ω-.08Ω .001Ω-.1Ω .001Ω-.1Ω .001Ω-.12Ω
.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]
.0025Ω-.15Ω .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 ≤1%,R01 ≥2%), . 012Ω ( R012), .015Ω ( R015), . 02Ω(R020 if ≤1%, R 02≥2%), .022 Ω (R022), .025Ω (R025), .03Ω (R030 if ≤1%, R03 ≥2%), .033Ω (R033), .04Ω (R040 if≤ 1%, R04 ≥2%), .05Ω (R050≤1%, R05≥2%), .068Ω(R068), .07Ω (R070 if ≤1%, R07 ≥2%), .075Ω (R075), .08Ω (R080 if≤1%, R08 ≥2%), .1Ω (R100 if≤1%, R10 ≥2%).
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:
