MWM SERIES
RoHS
Term.W is
RoHS
compliant
& 260°C
compatible
Widest selection in the industry!
Tolerance to ±0.01%, T.C. to ±5ppm/°C
Available on exclusive
SWIFT
TM
delivery program!
OPTIONS
Option X: Non-inductive (refer to application note below)
Option P: Increased Pulse Capability
Option M: Power metal film element
Option L: Low profile non-inductive metal plate design
Option E: Low thermal EMF design
Special marking, high current, flame retardant, fusible,
temp.sensitive, hi-rel screening/burn-in, fusible, SnPb, etc.
A
↑
↓
→
D
←
←
G
→
↑
.010” MWM2 & 3S, .050” MWM3 & 5
↑
F
↓
Exceptional perfomance and reliability is
achieved via highest grade materials and
processing. An all-welded wirewound construction is standard,
featuring premium-grade wire for superior stability and surge
capability. Opt. L low profile models feature a non-inductive metal
plate element. The power film version (Opt.M) achieves values as high
as 1MΩ and is inherently low inductance thereby enabling stable
operation at high frequencies.
PERFORMANCE
(Typ)
Load Life (1000 hrs)
Moisture Resistance
Temperature Cycling
Short Time Overload
Temp. Coefficient
R0005-R024
R025-R049
R050-R099
R100-R990
1R00-9R90
10R0 & above
Dielectric Strength
1
Solderability
2
Operating Temp.
Available Resis. Tol.
1
C
B
↓
------
←
E
→
------
H
SUGGESTED
PAD LAYOUT
WW & Opt. L Metal Plate
±1% (MWM2S,3S,27=2%)
±0.25%
±0.2%
5 x rated W for 5 Sec
Standard
Optional
400ppm
100, 200
300ppm
100, 200
200ppm
50, 100
90ppm
20,30,50
50ppm
10,20,30
30ppm
5,10,20
500V Min.
1
, 1KV avail.
95% coverage
-55 to +175°C(+275° avail)
0.01% to 10%
2
Opt. M Film Element
±1%
0.5%
0.5%
5 x rated W for .5 Sec
Standard
Optional
n/a
n/a
n/a
n/a
n/a
n/a
350ppm 200
200ppm 100
100ppm 25,50
500V Min. (1KV avail.)
95% coverage
-55°C to +175°C
0.5% to 5%
Dielectric strength for low profile Opt. L is 100V ( 300V avail)
Tested within .032" [.8mm] of pcb surface
RCD TYPE
MWM1/2
MWM1
MWM2
MWM2S
MWM27
MWM3S
MWM3
MWM5
Wattage
Rating
0.5W
1W
2W
2W
2.7W
3W
3.5W
5W
Max
Voltage*
[Current]
33V [10A]
58V [20A]
120V [30A]
80V [25A]
180V [30A]
200V [30A]
250V [30A]
300V [32A]
Std Resis
Range
.01
Ω
- 2K
.001
Ω
-10K
.002
Ω
-25K
.1
Ω
- 200
Ω
.005
Ω
-20K
.005
Ω
-25K
.005
Ω
-50K
.005
Ω
-100K
Opt M Opt M
Resis Max.
Range Voltage
5Ω - 1M
.1
Ω
- 1M
.1
Ω
- 1M
1Ω - 1M
1Ω - 1M
1Ω - 1M
1Ω - 1M
n/a
200V*
200V*
250V*
250V*
250V*
300V*
350V*
n/a
DIMENSIONS Inch [mm]
A
.204± .02 [5.2 ± .5]
.258± .02 [6.55± .5]
.449± .032 [11.4± .8]
.297 ± .020 [7.5 ± .5]
.480± .032 [12.2± .8]
.625± .032 [15.9± .8]
.811± .020 [20.6± .5]
.811± .020 [20.6± .5]
B
(Max)
.111 [2.82]
.125 [3.17]
.208 [5.28]
.165 [4.19]
.230 [5.84]
.270 [6.86]
.295 [7.49]
.295 [7.49]
C
.125± .01 [3.2± .25]
.150± .015 [3.8± .4]
.225± .015 [5.7± .4]
.150± .015 [3.8± .4]
.228± .016 [5.8± .4]
.275± .015 [7± .38]
.273± .02 [6.9 ± .5]
.273± .02 [6.9± .5]
D
(Min)
.025 [.63]
.032 [0.8]
.060 [1.5]
.044 [1.1]
.05 [1.27]
.05 [1.27]
.063 [1.6]
.063 [1.6]
E
.045± .015 [1.14± .4]
.060± .015 [1.50± .4]
.070± .020 [1.78± .5]
.050± .016 [1.27± .4]
.070± .020 [1.78± .5]
.085± .016 [2.16± .4]
.102± .028 [2.6 ± .7]
.102± .028 [2.6 ± .7]
F
.080 [2.0]
.100 [2.5]
.160 [4.0]
.100 [2.5]
.160 [4.0]
.160 [4.0]
.200 [5.0]
.250 [6.4]
G
.100 [2.5]
.125 [3.2]
.157 [4.0]
.125 [3.2]
.18 [4.57]
.175 [4.5]
.200 [5.0]
.250 [6.4]
H
.08 [2]
.12 [3]
.20 [5]
.14 [3.6]
.20 [5]
.40 [10]
.60 [15]
.60 [15]
LOW PROFILE METAL PLATE MODELS
MWM1/2L 0.5W
√
(PR) [12A] .003
Ω
-.05
Ω
n/a
MWM1L
1W
√
(PR) [25A] .001
Ω
-0.1
Ω
n/a
MWM2L
2W
√
(PR) [30A] .002
Ω
-0.2
Ω
n/a
MWM2LS 2W
√
(PR) [45A] .0005 -.005
Ω
n/a
n/a
n/a
n/a
n/a
.200 ± .012 [5.1 ± .3] .053 [1.35]
.250 ± .012 [6.3 ± .3] .057 [1.45]
.330± .012 [8.38± .3] .057 [1.45]
.250 ± .012 [6.3 ± .3] .079 [2.0]
.100± .01 [2.54± .25]
.126 ± .012 [3.2 ± .3]
.157 ± .012 [4.0 ± .3]
.126 ± .012 [3.2 ± .3]
.025 [.63]
.025 [.63]
.032 [0.8]
.032 [0.8]
.060 [1.5] min
.070 [1.8] min
.100 [2.5] min
.080[.20] min
.080 [2.0]
.150 [3.8]
.197 [5.0]
.150[3.8]
D
10 M
0
Ω
W
M
1% 2
.100 [2.5]
.125 [3.2]
.157 [4.0]
.125[3.2]
.08 [2]
.120 [3]
.157 [4]
.120[.3]
SM POWER RESISTORS, 1/2W - 5W, .0005Ω - 1MΩ
Ω
Ω
WIREWOUND, FILM, & METAL PLATE
RESISTORS CAPACITORS COILS DELAY LINES
*Voltage determined by E =
√
PR , E not to exceed maximum voltage rating. Increased ratings available. Multiply by 0.7 for Opt. X
APPLICATION NOTES:
1.
Power Rating:
Resistors may be operated up to full rated power with
consideration of mounting density, pad & trace geometery, PCB material, and
ambient temperature. Standard parts should be derated (W&V) by .67%/°C
when ambient exceeds 25°C, low profile parts by 1%/ °C above 70 °C
2.
Inductance:
Standard wound parts are 1 - 20uH typ. For “non-inductive”
design, specify Opt.X (0.2uH max
≤50Ω,
.37uH >50Ω, 50nH avail). Opt. L
(metal plate element) and Opt.M (power film element) are inherently low
inductance (1 to 10nH typ). Consult factory for assistance.
3.
Pulse Capability:
standard MWM (wirewound) and Opt. L (metal plate)
offer excellent overload capability greatly exceeding that of film resistors.
The overload level can often be economically enhanced by a factor of 50%
or more via special processing (Opt.P). Pulse capability is highly dependent
on size & resistance (available up to 50 joules). Consult factory for assistance.
P/N DESIGNATION:
MWM2
- 1001 - F T
RC
W
RCD Type
Options:
X,P,M,L,F,E (leave blank if std)
Resis.Code .01%-1%:
3 signif. figures & multiplier,
e.g. R010=0.01Ω, R100=0.1Ω, 1R00=1Ω, 1000=100Ω, 1001=1K.
Resis.Code 2%-10%:
2 signif. figures & multiplier, R01=0.01Ω,
R10=0.1Ω, 1R0=1Ω, 100=10Ω, 101=100Ω, 102=1K.
Use extra digits as needed: R005, R0075, R012, etc.
Tolerance Code:
K=10%, J=5%, H=3%, G=2%, F=1%,
D=0.5%, C=0.25%, B=0.1%, A=0.05%, Q=0.02%, T=0.01%
Packaging:
B = Bulk, T = Tape & Reel
TC
(leave blank if standard): 5 = 5ppm, 10 = 10ppm, 20=20ppm,
30=30ppm,50=50ppm, 101=100ppm, 201=200ppm, 301=300ppm
Termination:
W= Lead-free, Q= Tin/Lead. Leave blank if either is
acceptable (RCD will select based on lowest price and quickest delivery).
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
FA015J
Sale of this product is in accordance with GF-061. Specifications subject to change without notice.
23
Power technology
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