SURFACE MOUNT WIREWOUND RESISTORS
MELF AND GULLWING DESIGNS, 1/2 TO 5 WATT
RESISTORS CAPACITORS COILS DELAY LINES
MW SERIES
RoHS
Term.W is
RoHS
compliant
& 260°C
compatible
RCD MW3
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!
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).
OPTIONS
Option X:
Non-inductive
Option T:
PTC Temp. Sensitive (+80 to +6000ppm/°C)
Option P:
Increased Pulse Capability
Option F:
Flameproof (UL94V-0)
Option ER:
100 Hour Burn-In
Numerous options avail.: special marking, matched sets,
Hi-Rel screening, low thermal EMF, etc. Consult factory
.010”
[.25]
Max
TYPICAL PERFORMANCE CHARACTERISTICS
Load Life (1000 hours)
Moisture Resistance
Temperature Cycling
Short Time Overload
Resistance to Solder Heat (260°C, 5S)
Thermal Shock (gullwing only)
±0.5%
±0.2%
±0.2%
5x rated W, 5Sec
±0.1%
±0.2%
95% coverage
1uH to 10uH typ.
0.2uH max*
0.37uH max*
-55°C to +155°C
(275°C avail.)
C
MELF
A
A
GULLWING
.050 [1.27]
typ.
.
12 [3]
typ.
B
←
B
→
Solderability (<.032" from PCB )
Inductance: standard
Inductance: Option X
≤
50
Ω
Inductance: Option X
>
50
Ω
Operating Temperature Range
.10 [2.5]
typ.
C
P ackag e
Style
MELF
MELF
MELF
MELF
MELF
GULLWING
GULLWING
*
specify Opt.75 for inductance levels 50% that of Opt.X, or Opt.76 for 33% that of Opt.X
RCD
Type
MW1/2
MW1
MW2
MW25
MW35
MW3
MW5
1
Wattage
@ 25°C
0.5W
1W
2W
2.5W
3W
3W
5W
Wattage Derating Maximum Dielectric Resistance
above 25°C
Voltage
1
Strength
2
R an g e
2
3.85mW/°C
7.7mW/°C
15.4mW/°C
19.2mW/°C
23.1mW/°C
23.1mW/°C
37mW/°C
30V
40V
60V
100V
200V
200V
250V
200V
250V
250V
300V
400V
500V
500V
0.5
Ω
- 500
Ω
0.05
Ω
-1K
0.05
Ω
-2K
0.05
Ω
-5K
0.05
Ω
-10K
0.005
Ω
-25K
0.005
Ω
-50K
DIMENSIONS Inch [mm]
A
.180 ±.02
[4.57 ±.5]
.250±.02
[6.35 ±.5]
.350 ±.02
[8.89 ±.5]
.415 ±.02
[10.54 ±.5]
.500 ±.024
[12.7±.6]
.485 ±.04
[12.3 ±1]
.530 ±.06
[13.5 ±1.5]
2
B
.060 ±.008
[1.52 ±.2]
.085 ±.008
[2.16 ±.2]
.125 ±.008
[3.18 ±.2]
.144 ±.008
[3.66 ±.2]
.169 ±.010
[4.3 ± .25]
.165 ±.030
[4.19 ± .76]
.180 ± .035
[4.57 ± .89
C
.020 [.5] Min.
.020 [.5] Min.
.024 [.6] Min.
.032 [.8] Min.
.040 [1] Min.
.650 ± .04
[16.5 ± 1]
.715 ± .04
[18.2 ± 1]
Voltage determined by E =
√
PR , E not to exceed maximum voltage rating. Increased ratings available. Multiply by 0.7 for Opt. X.
Increased range available
SPECIFICATIONS
Resistance Range
R005-R0099
R010-R049
R050-R099
R100-R990
1R00-9R90
10R0 and above
Available
Tolerances
1% to 10%
0.5% to 10%
0.1% to 10%
0.05% to 10%
0.02% to 10%
0.01% to 10%
Temp. Coef. ( ppm/°C)
Standard
900
600
300
100
50
30
Optional
600, 300
300, 200
200, 100, 50
50, 30, 20
30, 20, 10
20, 10, 5
P/N DESIGNATION:
MW2
- 1001 - F T
W
RCD Type
Options:
X, T, P, F, ER (leave blank for std)
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,
(R01=0.01Ω, 1R0=1Ω, 100=10Ω, 101=100Ω, 102=1K, 103=10K, 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 (melf only)
Temp. Coef.
(leave blank for standard): 5 = 5ppm, 10 = 10ppm;
100ppm & above, use 3 digit code: 101=100ppm, 201=200ppm, etc.
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)
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.
22
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