RESISTORSꢀCAPACITORSꢀCOILSꢀDELAY LINES
GENERAL PURPOSE 1W TO 25W
CERAMIC-ENCASED RESISTORS
RCD PW15 100Ω 5%
Term.W is
RoHS
RCD PW7A 10KΩ 5%
compliant
PW SERIES
& 260°C
compatible
RoHS
PW resistors are designed for general purpose and semi-precision
power applications. The fireproof ceramic construction provides
excellent thermal conductivity and resistance to moisture & solvents.
Typical marking is ‘RCD’, value, tol. &wattage (or type). The resistance
element is wirewound on lower values, & power film on higher values
depending on options (opt. P & T parts are always WW). If a specific
construction is preferred, specify opt.WW or M (not avail. in all values).
ꢀ Low cost and the industry’s broadest selection!
ꢀ Available from stock in popular sizes (5W&10W, 0.1Ω to5K)
and selected values in other sizes; non-stock items are
available on exclusive SWIFTTM delivery program
ꢀ Tolerance to ±0.05%, TCR to ±5 ppm/°C
ꢀ Wide resistance range: .05Ω to 1MegΩ
ꢀ Tape & Reel available up to 10W size (Opt.A not avail. on T&R)
APPLICATIONNOTE#1:ResistorComparison
OPTIONS
Series PW resistors offer moderate performance levels at prices
below that of other WW or film technologies. Other choices for
medium power applications are Series PV resistors (2W to 10W,
similar to PW in vertical package); Series 100 military grade WW
(1/2W to 50W, offers improved performance, pulse capability, and
reliability); Series RW (1W to 5W WW, offers space savings); and
Series RSF/RMF power film (1/2W to 9W, offers reduced inductance).
ꢀ Option X: Non-inductive (PW5X & smaller: ≤50Ω =0.2uH max,
>50Ω= 0.37uH max; PW7X & larger: ≤50Ω=0.3uH max,
>50Ω= 0.6uH max). Reduced inductance levels available
ꢀ Option T: Temp. sensitive (up to +6000ppm/°C)
ꢀ Option P: Increased pulse capability
ꢀ Option FF: Fuse within 10S at 30x rated W4 and within 45S
at 20x rated W (1Ω to 1K). Custom fusing characteristics avail.
ꢀ Option B: Increased power
APPLICATIONNOTE#2:TemperatureRise
ꢀ Option A: Standoffs built into ceramic case
ꢀ Additional options available... burn-in, special marking, non-
standard values, increased voltage, longer or heavier gauge
leads, specialty lead wire material/plating/insulation, cut & formed
leads, etc. Customized components are an RCD specialty!
Power resistors reach elevated temperatures (typically 125° to 250°C)
when operated at full wattage, so when utilizing above 50% power
rating, the bodies should be mounted off the PCB with adequate
clearance from heat sensitive components. Opt. A standoffs are
helpful in preventing heat transfer to PCB.
1.00” Min PW1,2
1.12” Min PW3,5
1.25” Min PW7-25
Rated
← B→
Wattage
DIMENSIONS Inch [mm]
A
Resis.
RCD
Type
Continuous
Range
↑
↓E
↑
Working
Opt.
Std.
B
C
D
E
C
(0.05Ω -
A (Max.)
Voltage1
1002
B
±.032 [.81] ±.05 [1.3]
Max.
±.004 [.1]
↓
PW1
PW2
PW3
PW5
PW7
1
2
3
5
7
2
3
5
1M
1M
1M
.62 [15.8]
.72 [18.3]
.91 [23.1]
.91 [23.1]
1.42 [36]
1.96 [50]
1.96 [50]
.25 [6.4]
.27 [ 6.8]
.31 [ 7.9]
.38 [ 9.7]
.38 [ 9.7]
.38 [ 9.7]
.50 [12.7]
.25 [6.4]
N/A
.028 [.7]
.028 [.7]
↑
Option A
(standoffs)
1002
.27 [6.8] .39 [4.9]
D
↓
1502
.31 [7.9] .43 [10.9] .031 [.8]3
.35 [8.9] .47 [11.9] .031 [.8]3
.35 [8.9] .52 [13.2] .031 [.8]3
.38 [9.7] .52 [13.2] .031 [.8]3
.50 [12.7] .68 [17.2] .031 [.8]3
7
10
-
1M
1M
2002
350
500
540
600
650
700
Stock
DERATINGCURVE:
PW10 10
PW15 15
PW20 20
PW22 22
PW25 25
1M
Stock
(derate W/V/A when ambient temp. > 25°C)
100
-
30K
40K
40K
40K
75
50
25
0
-
2.55 [65] .58 [14.7] max .50 [12.7] .70 [17.8] .031 [.8]3
2.55 [65] .58 [14.7] max .50 [12.7] .70 [17.8] .031 [.8]3
2.55 [65] .58 [14.7] max .50 [12.7] .70 [17.8] .031 [.8]3
-
-
-55 25 50
100
150
200
250
235°C
300
1
Maximum voltage rating is determined by E= PR, E should not exceed value listed.
AMBIENT TEMPERATURE (°C)
2 Specify opt. 59 for double voltage rating.
Specify opt.18 for 18AWG (.040”) diameter leads.
3
TYPICAL PERFORMANCE FOR SERIES PW
P/NDESIGNATION:
RCD Type
PW10
- 100 - J B
W
Temperature
CoefT25 -T100
1Ω and above
100ppm/°C typ., 300ppm max.1
200ppm/°C typ., 600ppm max.1
Options: X, WW, T, P, M, FF, B, A, 59, 18
(Leave blank if standard)
0.05Ω to 1Ω
Operating Temp.
Terminal Strength
Dielectric Strength
-55° to +235° C 2
Resis.Code .05%-1%: 3 signif. figures & multiplier,
R100=0.1Ω, 1R00=1Ω, 10R0=10Ω, 1000=100Ω, 1001=1K.
Resis.Code 2%-10%: 2 signif. figures & multiplier,
R10=0.1Ω, 1R0=1Ω, 100=10Ω, 101=100Ω, 102=1K.
If necessary, use additional (significant) digits, e.g. R005
for 0.005Ω, R0075 for 0.0075Ω in any tolerance.
5 lbs. minimum
1000V
5 Sec. overload (≤1.5x max V)
Moisture Resistance
3X rated wattage (Opt. WW = 5X)
3.0% 3
1.0% 3
3.0% 3
2.0% 3
1.0% 3
Tolerance: K=10%, J=5% (std), H=3%, G=2%,
F=1%, D=0.5%, C=0.25%, B=0.1%
High Temp. Exposure
Load Life (1000 hours)
Temperature Cycling
Packaging: B=Bulk (standard), T= Tape & Reel
Temp. Coefficient (leave blank for standard TC): 5=5ppm,
10=10ppm, 20= 20ppm, 50=50ppm, 101=100ppm, 201=200ppm
Shock and Vibration
Termination: W= Lead-free, Q= Tin/Lead (leave blank if either is acceptable,
in which case RCD will select based on lowest price and quickest delivery)
1
2
3
TC to 5ppm available >10Ω, 10ppm 1-10Ω, 20ppm 0.1-1Ω
275°C avail
Tightened
4
performance avail
Opt FF max fault nte 1.5x RCWV or 200x W rating
-
-
-
-
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
FA040G Sale of this product is in accordance with GF-061. Specifications subject to change without notice.
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