SURFACE MOUNT WIREWOUND RESISTORS
MELF AND GULLWING DESIGNS, 1/2 TO 5 WATT
RESISTORSꢀCAPACITORSꢀCOILSꢀDELAY LINES
Term.W is
RoHS
compliant
& 260°C
compatible
MW SERIES
RoHS
RCD Series MW provide a cost-effective solution for demanding
applications. Advantages include superior surge capability, improved
temperature stability, moisture resistance, noise, and a significant
space and cost savings over molded models. MW3 & MW5 feature
compliant gullwing terminals, which act as standoffs to reduce
PCB temperature and help minimize TCE stress (utilize compliant
terminals in applications with wide temperature gradients).
ꢀ Inherent wirewound stability and overload capability
ꢀ Resistance range: 0.005Ω to 50KΩ
ꢀ Excellent T.C. stability (available to ±5ppm/°C)
ꢀ Standard tolerance: ±1% or ±5% (available to 0.01%)
ꢀ Available on exclusive SWIFT TM delivery program!
OPTIONS
TYPICAL PERFORMANCE CHARACTERISTICS
ꢀ Option X: Non-inductive
Load Life (1000 hours)
±0.5%
ꢀ Option T: PTC Temp. Sensitive (+80 to +6000ppm/°C)
ꢀ Option P: Increased Pulse Capability
ꢀ Option F: Flameproof (UL94V-0)
Moisture Resistance
±0.2%
ꢀ Option ER: 100 Hour Burn-In
ꢀ Numerous options avail.: special marking, matched sets,
Hi-Rel screening, low thermal EMF, etc. Consult factory
Temperature Cycling
±0.2%
5x rated W, 5Sec
±0.1%
Short Time Overload
C
Resistance to Solder Heat (260°C, 5S)
Thermal Shock (gullwing only)
Solderability (<.032" from PCB )
.010”
[.25]
Max
MELF
±0.2%
B
A
A
95% coverage
Inductance: standard
Inductance: Option X ≤50Ω
Inductance: Option X >50Ω
1uH to 10uH typ.
0.2uH max*
0.37uH max*
← B →
GULLWING
-55°C to +155°C
(275°C avail.)
Operating Temperature Range
.050 [1.27] typ.
.12[3]
typ.
.10 [2.5]
typ.
* specify Opt.75 for inductance levels 50% that of Opt.X, or Opt.76 for 33% that of Opt.X
C
DIMENSIONS Inch [mm]
RCD Package Wattage Wattage Derating Maximum Dielectric Resistance
Type
Style
@ 25°C
above 25°C
Voltage1 Strength2
Range2
A
B
C
.180 ±.02
[4.57 ±.5]
.060 ±.008
[1.52 ±.2]
MW1/2
MELF
0.5W
3.85mW/°C
30V
40V
200V
250V
250V
300V
400V
500V
500V
0.5Ω- 500Ω
.020 [.5] Min.
.020 [.5] Min.
.024 [.6] Min.
.032 [.8] Min.
.040 [1] Min.
.250±.02
[6.35 ±.5]
.085 ±.008
[2.16 ±.2]
MW1
MW2
MELF
MELF
1W
2W
7.7mW/°C
15.4mW/°C
19.2mW/°C
23.1mW/°C
23.1mW/°C
37mW/°C
0.05Ω -1K
0.05Ω -2K
.350 ±.02
[8.89 ±.5]
.125 ±.008
[3.18 ±.2]
60V
.415 ±.02
[10.54 ±.5]
.144 ±.008
[3.66 ±.2]
MW25
MW35
MW3
MELF
2.5W
3W
100V
200V
200V
250V
0.05Ω -5K
.500 ±.024
[12.7±.6]
.169 ±.010
[4.3 ± .25]
MELF
0.05Ω -10K
0.005Ω -25K
0.005Ω -50K
.485 ±.04
[12.3 ±1]
.165 ±.030
[4.19 ± .76]
.650 ± .04
[16.5 ± 1]
GULLWING
GULLWING
3W
.530 ±.06
[13.5 ±1.5]
.180 ± .035
[4.57 ± .89
Increased range available
.715 ± .04
[18.2 ± 1]
MW5
5W
1Voltage determined by E =
, E not to exceed maximum voltage rating. Increased ratings available. Multiply by 0.7 for Opt. X.
2
PR
√
SPECIFICATIONS
P/N DESIGNATION:
MW2
- 1001 - F T
W
RCD Type
Temp. Coef. ( ppm/°C)
Available
Tolerances
Resistance Range
Options: X, T, P, F, ER (leave blank for std)
Standard
900
Optional
600, 300
Resis.Code 0.01%-1%: 3 signif. figures & multiplier,
(R010=0.01Ω, 1R00=1Ω, 10R0=10Ω, 1000=100Ω, 1001=1K, etc).
Resis.Code 2%-10%: 2 signif. figures & multiplier,
R005-R0099
R010-R049
1% to 10%
0.5% to 10%
0.1% to 10%
0.05% to 10%
0.02% to 10%
0.01% to 10%
(R01=0.01Ω, 1R0=1Ω, 100=10Ω, 101=100Ω, 102=1K, 103=10K, etc)
600
300, 200
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%
R050-R099
300
200, 100, 50
50, 30, 20
30, 20, 10
20, 10, 5
Packaging: B = Bulk, T = Tape & Reel (melf only)
R100-R990
100
Temp. Coef. (leave blank for standard): 5 = 5ppm, 10 = 10ppm;
100ppm & above, use 3 digit code: 101=100ppm, 201=200ppm, etc.
1R00-9R90
50
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)
10R0 and above
30
-
-
-
-
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
FA002D Sale of this product is in accordance with GF-061. Specifications subject to change without notice.
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