RW1S0BAR300J Ohmite, RW1S0BAR300J Datasheet - Page 3

• Manufacturer Part Number: RW1S0BAR300J
• Description: RES POWER .300 OHM 1W 5% SMT
• Manufacturer: Ohmite
• Series: RWr

Specifications of RW1S0BAR300J

• Resistance (ohms): 0.3
• Power (watts): 1W
• Composition: Wirewound
• Features: Current Sense
• Temperature Coefficient: ±90ppm/°C
• Tolerance: ±5%
• Size / Dimension: 0.246" L x 0.136" W (6.25mm x 3.45mm)
• Height: 0.136" (3.45mm)
• Lead Style: Surface Mount (SMD - SMT)
• Package / Case: Non-Standard SMD
• Resistance In Ohms: 0.30
• Case: Non-Standard SMD
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: RW1S0BAR300; RW1S0BAR300JBK; RW1S0J.300BK

Ohmite Mfg. Co.
Base: standard
0.005
0.010
0.015
0.020
0.025
0.027
0.030
0.033
0.036
0.050
0.056
0.075
0.080
0.100
0.150
0.200
0.220
0.240
0.300
0.330
0.400
0.400
0.470
0.500
0.750
1.00
2.00
package style
Component type
R = resistor
or recessed
Wattage
part no.
Prefix 
Suffix
Component Modifier
C = carbon/ceramic
F = film
P = power film
W = wire
N = wirewound, non-inductive
–––R005–
–––R010–
–––R015–
–––R020–
–––R025–
–––R027–
–––R030–
–––R033–
–––R036–
–––R050–
–––R056–
–––R075–
–––R080–
–––R100–
–––R150–
–––R200–
–––R220–
–––R240–
–––R300–
–––R330–
–––R040–
–––R400–
–––R470–
–––R500–
–––R750–
–––1R00–
–––2R00–
RC
RF
RW
RP
RN
ALL models:
composition



� �
Tolerance suffix: F = 1% J = 5% K=10%
Construction
Carbon/Ceramic Composition
Metal Film
Wirewound
Power Film
Wirewound, Non-inductive
F/J
F/J
F/J
F/J
F/J
1600 Golf Rd., Rolling Meadows, IL 60008 • 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax [phone] • www.ohmite.com • [e-mail]
1.0
Ba
Type of Base
S = standard
R = recessed
J
J
J
F
J
J
J
J
J
J
J
J
J
s
1.5
Ca
J
J
J
J
J
J
J
J
J
J
J
s
� � �
Wattage
Examples:
1S3 = 1.25W
2S0 or 2R0 = 2.0W
3R5 = 3.5W
s t a n d a r d p a r t n u m b e r s f o r s u r f a c e m o u n t p o w e r r e s i s t o r s
Leaching (260°C Solder immersion, 60 sec.).......................
Thermal Shock (Units at -55°C, then rated power applied)..
Flammability .........................................................................
2.0
CB
J
J
J
J
J
J
J
J
J
s
Wirewound
2.0
CB
r
J
J
J
J
J
J
� �
Package
B = 12mm
C = 16mm
D = 24mm
E = 32mm
F/J
2.0
Da
F
F
J
F
J
J
s
Package Modifier
A, B sequential
� � � � �
Resistance Value
R = Decimal
K = 1,000
M = 1,000,000
2.0
Da
F
r
J
J
J
J
J
o r d e r i n g i n f o r m a t i o n
3.0
(-55°C to 125°C,
DB
J
J
J
J
r
Temp. cycle
1000 cycles)
±4.0%+.05Ω
±0.5%+.05Ω
±0.5%+.05Ω
±3.0%+.05Ω
±0.5%+.05Ω
3.5
ea
r
J
J
J
J
J
J
J
J
Examples:
R249 = 0.249 ohms
24R9 = 24.9 ohms
2K49 = 2,490 ohms
0.6
BB
Tolerance
F = 1%
G = 2%
H = 3%
J = 5%
K =10%
F
F
F
F
F
F
F
F
F
F
F
F
s
� �
p e r f o r m a n c e d a t a
1.0
ea
r
E = RoHS compliant
Available Jan. 2006
±10.0%+.05Ω
±0.5%+.05Ω
±3.0%+.05Ω
±5.0%+.05Ω
±3.0%+.05Ω
(1000 hours
Load Life
T = Tape
and Reel
(optional)
at 25°C)
100.00
120.00
180.00
300.00
470.00
10.00
15.00
20.00
22.00
24.90
33.00
36.00
47.00
50.00
51.00
68.00
82.00
4.7K
Base: standard
3.30
4.70
5.00
5.60
6.80
7.50
1K
package style
5K
or recessed
Wattage
part no.
Prefix 
Suffix
Surface Mount Power
–––6R80–
–––7R50–
–––10R0–
–––15R0–
–––20R0–
–––22R0–
–––24R9–
–––33R0–
–––36R0–
–––47R0–
–––50R0–
–––51R0–
–––68R0–
–––82R0–
–––100R–
–––120R–
–––180R–
–––300R–
–––470R–
–––1K00–
–––4K70–
–––5K00–
–––3R30–
–––4R70–
–––5R00–
–––5R60–
(For example, the part number
shown is a wirewound resistor, 3.5
watt, recessed base, 32mm tape
size, first case size [A], 1000 ohms
1% tolerance.)
±3.0%+.05Ω
±0.1%+.05Ω
±0.1%+.05Ω
±0.5%+.05Ω
±0.1%+.05Ω
Immersion
(260°C for



10 sec.)
Tolerance suffix: F = 1% J = 5% K=10%
1.0
Ba
J
J
J
J
J
J
J
No visible leaching
No mechanical damage
UL Material rating, UL94V0
s
1.5
Ca
J
J
s
2.0
CB
J
J
J
s
Wirewound
Momentary
Overload
6.3x rated power for 5 sec.
2x rated power for 0.1 sec.
5x rated power for 5 sec.
2x rated power for 0.1 sec.
5x rated power for 5 sec.
2.0
CB
J
J
r
2.0
Da
J
s
2.0
Da
J
r
3.0
DB
J
r
3.5
ea
J
J
J
J
r
0.6
BB
F
F
F
F
F
F
F
F
F
F
s
(continued)
1.0
K
K
K
K
K
K
K
K
K
K
K
ea
r
15