r
esIsTor
w
Irewound
P
recIsIon
smT
rwf s
erIes
k
ey
F
eatureS
• Resistance from 0.005 to 50kOhms
• Precision, Flame Proof and Pulse Withstanding
• Tolerance to ± 0.01%
• High Power to 4 Watts
• Flame Resistant UL 94V-0
• Superior Surge Handling Capability
• High Temperature Rating up to 275º
• Low Temperature Coefficient to ± 20ppm/ºC
• Non-Inductive Windings available
a
pplicationS
p
roduct
S
ummary
PRODUCT
SERIES
(RWF)
C1
C2
C3
C4
C5
D1
D2
1
• Motor Control
• Braking Systems
POWER
RATING (W) DIELECTRIC
@ 70 ºC
STRENGTH TOLERANCE
0.5
1
2
3
4
1
2
500 VAC
± 0.1%
to
± 5%
1000 VAC
± 0.01%
to
± 5%
>10Ω : ± 20ppm/°C
1Ω to 10Ω : ±
50ppmºC
<1Ω : Call Factory
± 200ppm/°C
Call Factory For Lower
120
• Power Supplies
• Pressure Transducers
TEMPERATURE INSULATION
RANGE
RESISTANCE
RESISTANCE
RANGE (Ω)
1
0.01 to 400
0.005 to 3k
0.01 to 15k
0.01 to 25k
0.01 to 50k
0.005 to 0.05
0.005 to 0.07
TEMPERATURE
COEFFICIENT
- 55°C
to
+ 275°C
>1000
MOhms / Dry
For non-inductive windings, divide max resistance by 2
Power Derating Curve
Rated Power (%)
100
80
60
40
20
0
0
50
100
150
200
250
300
350
Maximum Working Voltage =
a
Vailable
o
ptionS
(Consult Factory)
•
•
Special Testing Requirements
Special Pulse Requirements
H
ow to
o
rder
RWF
RESISTOR
WIREWOUND SMT
Ambient Temperature (ºC)
N
WINDINGS
C4
PACKAGE CODE,
WATTS, RESISTANCE
C1, 0.5W, [0.01 to 400]Ω
C2, 1.0W, [0.005 to 3k]Ω
C3, 2.0W, [0.01 to 15k]Ω
C4, 3.0W, [0.01 to 25k] Ω
C5, 4.0W, [0.01 to 50k]Ω
D1, 1.0W, [0.005 to 0.05]Ω
D2, 2.0W, [0.005 to 0.07]Ω
U
TEMPERATURE COEFFICIENT
OF RESISTANCE (TCR)
U = ± 20ppm/ºC
Q= ± 50PPM/ºC
L = ± 200ppm/ºC
Z = special
380R0
RESISTANCE
B
TOLERANCE
E
PACKING
S = Standard
N = Non-
Inductive
For Tin/Lead coated leads, add “- Pb” to part number.
Standard Termination Finish: Electroless Tin
Example P/N: RWFNC4U380R0BE is Resistor Wirewound Precision SMT Non-Inductive, 3.0W, ±20ppm/°C, 380Ω, ±0.1%, embossed tape &
reel
0R038 = 0.038Ω
003K8 = 3.8KΩ
038K0 = 38.0KΩ
380K0 = 380.0KΩ
003M8 = 3.8M Ω
Letter denotes decimal place.
R = decimal., “K” 10
3
, “M” 10
6
Remaining 4 digits are
significant placeholders
T = ± 0.01%
Q = ± 0.02%
A = ± 0.05%
B = ± 0.1%
F = ± 1.0%
J = ± 5.0%
E = Embossed
Tape & Reel
34
www.johanson dielectrics.com
r
esIsTor
w
Irewound
P
recIsIon
smT
rwf s
erIes
m
ecHanical
c
HaracteriSticS
Lead Thickness 0.006 [.015mm]
Tolerances
±0.002” [±0.05mm]
Package Code
A
(Tolerances)
±0.015” [±0.4mm]
C1
0.190
[4.83]
0.130[
3.30]
0.110
[2.79]
0.060
[1.52]
0.040
[1.02]
0.100
[2.54]
0.005
[0.13]
0.062
[1.57]
0.100
[2.54]
0.250
[6.35]
C2
0.260
[6.60]
0.155
[3.94]
0.125
[3.18]
0.070[1.78]
0.070
[1.78]
0.120
[3.05]
0.005
[0.13]
0.096
[2.44]
0.150
[3.81]
0.337
[8.56]
C3
0.450
[11.43]
0.250 [6.35]
0.180 [4.57]
0.120 [3.05]
0.100 [2.54]
0.190 [4.83]
0.005 [0.13]
0.150 [3.81]
0.200 [5.08]
0.540
[13.72]
C4
0.625
[15.83]
0.270[6.86]
0.250 [6.35]
0.120 [3.05]
0.135 [3.43]
0.150 [3.81]
0.005 [0.13]
0.200 [5.08]
0.220 [5.59]
0.700
[17.78]
C5
0.820 [20.83]
0.295 [7.49]
0.305 [7.75]
0.150 [3.81]
0.190 [4.83]
0.245 [6.22]
0.005 [0.13]
0.220 [5.59]
0.250 [6.35]
0.900 [22.86]
D1
0.260
[6.60]
0.155
[3.94]
0.100
[2.54]
0.070
[1.78]
0.070
[1.78]
0.120
[3.05]
0.005
[0.13]
0.096
[2.44]
0.150
[3.81]
0.337
[8.56]
D2
0.450 [11.43]
0.250 [6.35]
0.100 [2.54]
0.120 [3.05]
0.100 [2.54]
0.190 [4.83]
0.005 [0.13]
0.150 [3.81]
0.200 [5.08]
0.540 [13.72]
B
(Tolerances)
Dimensions
Inches [mm]
±0.015” [±0.4mm]
±0.015” [±0.4mm]
±0.015” [±0.4mm]
±0.015” [±0.4mm]
C
(Tolerances)
D
(Tolerances)
F
(Tolerances)
E
(Tolerances)
Stand-Off
Inches [mm]
±
0.015” [±0.4mm]
Height
(Tolerances)
±0.005”[±0.13mm]
±0.015” [±0.4mm]
Width
(Tolerances)
Solder Pad
Inches [mm]
Height
(Tolerances)
±0.015” [±0.4mm]
Length
(Tolerances)
±0.015” [±0.4mm]
e
nVironmental
p
erFormance
Environmental Performance (MIL-STD 202)
Load Life
Moisture Resistance
Dielectric
Storage
Shock
Thermal Shock
5X Overload (5s)
Resistance to Heat Solder (260C, 10s)
±0.5% + 0.05
Ω
D
R Maximum
±1% + 0.05
Ω
±0.5% + 0.05
Ω
p
ackaging
i
nFormation
Package Code
Reel/Tape Width [mm]
Small
Large
C1
12
650
3000
C2
16
600
2000
C3
24
250
1000
C4
24
125
500
C5
32
180
500
D1
16
600
2000
D2
24
250
1000
Humidity Packaging Notes:
Moisture Barrier Bags (MBB) are used to package surface mount components. These bags include a dessicant and a Humidity
Indicator Card to monitor humidity levels. All bags are marked with Moisture-Sensitive Identification Labels.
A Moisture Sensitivity Level (MSL) rating of 2 (1-year floor life) applies to the Johanson RWF Series.
This datasheet is subject to change without notice.
www.johanson dielectrics.com
35
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
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:
RWFSC2U001K0FE RWFSC3U020R0FE RWFSC2Q000R1FE RWFSC3U04K99FE RWFSC2Q00R05FE
RWFSC3U002K2FE RWFSC3Q000R5FE RWFSC3Q04R02FE RWFSC3U049R9FE RWFSC2U300R0FE
RWFSC2Q00R03FE RWFSC3U015K0FE RWFSC3U022R0FE RWFSC3U02K21FE RWFSC3U047R0FE
RWFSC2L000R2FE RWFSC3U057R6FE RWFSC2U001K5FE RWFSC2Q010R0FE RWFSC3U475R0FE
RWFSC2Q0R075FE RWFSC2Q003R3FE RWFSC2U030R1FE RWFSC3U221R0FE RWFSC3U681R0FE
RWFSC3Q001R0FE RWFSC3Q000R2FE RWFSC3U220R0FE RWFSC3U06K81FE RWFSC2Q00R15FE
RWFSC3U068R1FE RWFSC2Q0R033FE RWFSC3U004K7FE RWFSC2Q001R0FE RWFSC2U150R0FE
RWFSC3U604R0FE RWFSC2U475R0FE RWFSC2Q00R02FE RWFSC2U022R0FE RWFSC3U150R0FE
RWFSC3Q00R15FE RWFSC3U100R0FE RWFSC3U010K0FE RWFSC2Q000R3FE RWFSC3Q00R02FE
RWFSC2U680R0FE RWFSC3U124R0FE RWFSC3QR0301FE RWFSC3U680R0FE RWFSC3Q00R03FE
RWFSC2Q0R015FE RWFSC2U047R5FE RWFSC2U068R1FE RWFSC3U470R0FE RWFSC2U002K2FE
RWFSC3U015R0FE RWFSC2U022R1FE RWFSC3Q0R075FE RWFSC2Q01K21FE RWFSC2Q00R75FE
RWFSC2Q0R039FE RWFSC2U075R0FE RWFSC2U02K21FE RWFSC3Q000R1FE RWFSC2U221R0FE
RWFSC2U470R0FE RWFSC2U049R9FE RWFSC2Q000R2FE RWFSC3U001K5FE RWFSC3U006K8FE
RWFSC3U047R5FE RWFSC2U068R0FE RWFSC2Q0R047FE RWFSC2Q00R01FE RWFSC3U022R1FE
RWFSC2U015R0FE RWFSC3Q00R01FE RWFSC3U04K75FE RWFSC2U047R0FE RWFSC3Q000R3FE
RWFSC3Q010R0FE RWFSC2U681R0FE RWFSC2U100R0FE RWFSC3U068R0FE RWFSC3Q00R75FE
RWFSC2Q00R68FE RWFSC3Q00R05FE RWFSC3Q0R015FE RWFSC2Q000R5FE RWFSC2U220R0FE
RWFSC2U003K0FE
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