参数资料
| 型号： | RW3R0DB68R0JET |
| 厂商： | Ohmite |
| 文件页数： | 3/4页 |
| 文件大小： | 0K |
| 描述： | RES POWER 68 OHM 3W 5% SMD |
| 产品培训模块： | Current Sensing Resistors |
| 产品目录绘图： | RW Series Front RW Series End RW Series Bottom |
| 标准包装： | 1,000 |
| 系列： | RW |
| 电阻（欧姆）： | 68 |
| 功率（瓦特）： | 3W |
| 复合体： | 绕线 |
| 特点： | 电流检测 |
| 温度系数： | ±20ppm/°C |
| 容差： | ±5% |
| 封装/外壳： | 6327（15969 公制），J 形引线 |
| 尺寸/尺寸： | 0.625" L x 0.273" W（15.88mm x 6.93mm） |
| 高度： | 0.226"（5.74mm） |
| 端子数： | 2 |
| 包装： | 带卷 (TR) |
| 产品目录页面： | 2258 (CN2011-ZH PDF) |
| 其它名称： | RW3R0DB68R0JETR |
WIREWOUND
SURFACE MOUNT
Surface Mount Power
200
180
160
140
120
100
80
60
40
20
Package limit hot spot temperature rise
Alumina
FR4
Solder joint
100% 200% 300%
The temperature rise graph
data was obtained by a
selection of test substrate
size and trace width for
each resistor size to limit
operating temperatures to
safe values.
The operating temperature
safe rises are either 100°C
substrate temperature rise
or 180°C package hot spot
temperature rise at 25°C
ambient.
FR4: 0.062 in. thick; 0.062
in. traces
Alumina: 0.040 in. thick;
0.010 in. traces
Molding material rated at
205°C continuous.
Percent Rated power
DIMENSIONS
(in./mm)
A
B
N
M
L
P
E
Note 2
J
K =0.006 Ref.
O
G
Note 1
D
H
F =0.005 ± .001
I
C
Recommended
for glue dot
application
Package Outline Dimensions
PC Board Land Pattern
Packages
A
B
C
D
G
I
J
L
M
N O P
BA
CA
CB
DA
DB
EA
BB
(in.)
(mm)
(in.)
(mm)
(in.)
(mm)
(in.)
(mm)
(in.)
(mm)
(in.)
(mm)
(in.)
(mm)
.246±.020
6.248±.508
.394±.020
10.008±.508
.407±.020
10.338±.508
.455±.020
11.557±.508
.625±.020
15.875±.508
.811±.020
20.599±.508
.202±.010
5.140±.508
.136±.005
3.454±.127
.159±.005
4.039±.127
.226±.005
5.74±.127
.240±.005
6.096±.127
.273±.005
6.934±.127
.273±.005
6.934±.127
.10±.010
2.54±.127
.133 REF .110±.010 .047 Nom.
3.378 REF 2.794±.254 1.194 Nom.
.156 REF .220±.010 .062 Nom.
3.962 REF 5.588±.254 1.575 Nom.
.222 REF .260±.010 .062 Nom.
5.639 REF 6.604±.254 1.575 Nom.
.236 REF .260±.010 .062 Nom.
5.994 REF 6.604±.254 1.575 Nom.
.268 REF .417±.010 .062 Nom.
6.807 REF 10.592±.254 1.575 Nom.
.268 REF .572±.010 .093 Nom.
6.807 REF 14.529±.254 2.362 Nom.
.095 REF .079±.010 .050 Nom.
2.41 REF 2.00±.254 1.280 Nom.
.054±.012
1.372±.305
.078±.012
1.981±.305
.084±.012
2.134±.305
.143±.012
3.632±.305
.143±.012
3.632±.305
.143±.012
3.632±.305
.065±.012
1.640±.305
.136±.005
3.454±.127
.159±.005
4.038±.127
.222±.005
5.639±.127
.226±.005
5.740±.127
.226±.005
5.740±.127
.273±.005
6.934±.127
.135±.005
3.420±.127
.150
3.81
.256
6.50
.276
7.01
.317
8.05
.474
12.040
.611
15.52
0.078
1.98
.346
8.79
.524
13.31
.537
13.64
.585
14.86
.742
18.85
1.000
25.4
0.328
8.33
.098 .126 .050
2.49 3.20 1.27
.134 .126 .060
3.40 3.20 1.52
.131 .126 .093
3.33 3.20 2.36
.134 .155 .093
3.40 3.94 2.36
.134 .155 .093
3.40 3.94 2.36
.195 .155 .093
4.95 3.94 2.36
0.125 0.126 0.026
3.18 3.20 0.66
Note 1: Packages BA and CA are only available with a pedestal base. Packages CB and DA are available in either pedestal or recessed base. Packages DB and EA
are only available in a recessed base.
Note 2: Test point is .020 above PCB.
Note 3: Tape and reel dimensions per EIA 481 A except “EA” size which is 12 mm component pitch versus 16mm pitch.
Reel Dimensions
Land pattern dimensions are for reference only
A
0.795*
20.2 min.
0.059*
1.5 min.
0.512 ± .008
13.0 ± .200
C
1.973
50 min.
Size A nom. B
12mm 13” 0.488" +0.078, –0.00
12.4mm +2.0, –0.0
16mm 13” 0.646" +0.078, –0.00
16.4mm +2.0, –0.0
24mm 13” 0.961" +0.078, –0.00
24.4mm +2.0, –0.0
32mm 13” 1.276" +0.078, –0.00
C max.
0.724"
18.4mm
0.882"
22.4mm
1.196"
30.4mm
1.52"
Quantity
2000 pcs. BA or
2500 pcs. BB
1500 pcs. CA or
1000 pcs. CB
1000 pcs. DA or DB
750 pcs. EA
Full
Radius
Tape Start Slot
0.098 / 2.5 min. width
B
Measured
at Hub
32.4mm +2.0, –0.0 38.4mm
All reels are compatible with major pick-and-place machines
and made in accordance with EIA 481 A (except EA size,
which is 12mm component pitch versus 16mm pitch).
0.394 / 10 min. depth
1-866-9-OHMITE ? Int’l 1-847-258-0300 ? Fax 1-847-574-7522 ? www.ohmite.com ? info@ohmite.com
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| RW3R0DB68R0JT | 功能描述:RES POWER 68 OHM 3W 5% SMD RoHS:否 类别:电阻器 >> 芯片电阻 - 表面安装 系列:RW 产品培训模块:Chip Resistor 产品目录绘图:Thick Film Resistor Top Thick Film Resistor Side 标准包装:5,000 系列:RC0805 电阻（欧姆）:1.58M 功率（瓦特）:0.125W，1/8W 复合体:厚膜 特点:- 温度系数:±100ppm/°C 容差:±1% 封装/外壳:0805（2012 公制） 尺寸/尺寸:0.079" L x 0.049" W（2.00mm x 1.25mm） 高度:0.024"（0.60mm） 端子数:2 包装:带卷 (TR) 产品目录页面:2236 (CN2011-ZH PDF) 其它名称:311-1.58MCRTR |
| RW3R0DB6R00F | 制造商:Ohmite Mfg Co 功能描述: |
| RW3R0DB750J | 功能描述:线绕电阻器 - SMD 3watt .75ohm 5% RoHS:否 制造商:Ohmite 电阻:4.99 Ohms 容差:1 % 功率额定值:2 W 外壳代码 - in:4023 外壳代码 - mm:10357 温度系数:50 PPM / C 系列:RW2 工作温度范围:- 55 C to + 125 C 封装:Bulk |
| RW3R0DB750RJ | 制造商:Ohmite Mfg Co 功能描述: |
| RW3R0DB7R50F | 制造商:Ohmite Mfg Co 功能描述:Res Wirewound 7.5 Ohm 1% 3W PPM/°C J-Lead SMD |
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