ECONOMY WIREWOUND RESISTORS
1 WATT to 10 WATT
RESISTORS CAPACITORS COILS DELAY LINES
RW SERIES
RoHS
Term.W is
RoHS
compliant
& 260°C
compatible
Excellent performance at economy prices
Inherent stability due to all-welded wirewound construction
Wide resistance range: 0.01Ω to 25KΩ
Standard tolerance is 5% (2% and 10% available)
Available on exclusive
SWIFT
TM
delivery program
Available on horizontal Tape & Reel (1W-10W), or
vertical Tape & Reel (1W-3W)
RW Series resistors are manufactured on an exclusive
automated system, resulting in significant cost savings.
Ceramic core results in performance levels far superior to
conventional fiberglass cores, especially in regards to
overload capability, TCR, noise characteristics, and load life
stability. Coating is flame resistant and offers excellent
moisture and solvent resistance.
OPTIONS
Option X: Low Inductance
Option P: Increased Pulse Capability
Option FF: Flameproof Fusible (see application guide below)
Option E: Low Thermal EMF
Option F: Flameproof Coating
Also available: cut & formed leads (horizontal and vertical),
increased voltage, special marking, etc. Customized
components are an RCD specialty!
DERATING
% RATED POWER
100
75
50
25
0
RW1-RW3
RW5,
RW10
0
25
50
75
100
125 150 175
200 225
250
275 300
AMBIENT TEMPERATURE ( °C )
←
L
(Max)
.390 [9.9]
.500 [12.7]
.638 [16.2]
.74 [18.8]
1.7 [43.2]
H
→←
L
→
D
±.032 [.8]
.140 [3.56]
.180 [4.6]
.220 [5.6]
.256 [6.5]
.325 [8.26]
d
↓
↑
→
D
←
H Min.**
0.96 [24]
1.16 [30]
1.16 [30]
1.25 [32]
1.25 [32]
SPECIFICATIONS
RCD Type
RW1
RW2
RW3
RW5
RW10
Wattage
1
2
3
5
10
Voltage
Rating
60V
100V
140V
210V
700V
Resistance
R an g e
0.01
Ω
-2.4K
0.01
Ω
-10K
0.01
Ω
-20K
0.05
Ω
-25K
0.1
Ω
-25K
d
±.005 [.13]
.027 [.69]
.028 [.71]
.031* [.8]
.031* [.8]
.031* [.8]
* 0.040 lead dia. available, specify option ‘18’
** Lead length of parts supplied on tape may be shorter
TYPICAL PERFORMANCE CHARACTERISTICS
Temperature Range
-55°C to +275°C
1Ω and above: 100ppm/°C
0.05 to 0.99
Ω
: 300ppm/°C
Below 0.05
Ω
: 600ppm/°C
1000 Megohms
Color band (or alpha-numeric)
with res.value and tolerance
± 2%
∆
R
OPTION FF FUSE RESISTOR APPLICATION GUIDE
1. Opt. FF fusible version is available from 0.1
Ω
- 2.4K (RW1=1.2K max)
2. Fault level must be suitable to safely open the resistor. Option FF parts
are desgned to blow within 20S at 15x rated power if
≥1
Ω,
20x if<1
Ω
(
preferable if fault level is double this level to ensure quick fusing time).
3. Maximum fault must not exceed 200x W rating, or voltage rating,
whichever is less (increased levels avail).
4. For customized fusing, complete RCD’s fuse questionnaire, or advise the
desired fusing wattage/current, min/max blow times, continuous power, surge
reqts, ambient temp, physical constraints, fault voltage, inductance, etc.
5. Fuse types shouldn’t be mounted in contact with other components or PCB.
6. Residual resistance is
≥100x
initial value after fusing.
7. Verify selection by evaluating under the full range of fault conditions.
Place resistors inside a protective case when testing under overload.
Temperature Coefficient
Insulation Resistance
Marking
Moisture Resistance
Thermal Shock
Dielectric Strength
Load Life
Overload
P/N DESIGNATION:
± 1%
∆
R
500V
2%
∆
R (Option FF= 3% typ)
5 x rated W, 5 Sec.
(Option FF = 2xW, 5S)
RW3
- R01 - J T W
RCD Type
Options:
X, P, FF, E, 18 (leave blank for std)
Resis. Code:
2 signif. digits & multiplier, e.g. R01=.01Ω,
R015=.015Ω, R10=.1Ω, 1R0=1Ω, 100=10Ω, 101=100Ω, 102=1K, etc.
Tolerance Code:
G=2%, J=5% (std), K=10%
Packaging:
B=Bulk, T=Horiz Tape & Reel, APN=Vertical Tape & Box
Termination:
W= Lead-free, Q= Tin/Lead
(leave blank if either is acceptable)
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
FA046B
Sale of this product is in accordance with GF-061. Specifications subject to change without notice.
45
