Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
10/05/18
70
KOA Speer Electronics, Inc.
• 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
SR73
lo-ohm 0.5%, 1%, 2%, 5% tolerance thick film
current sense resistor
applications and ratings
(continued)
Part
Designation*
Power
Rating
@ 70°C
1/3W (.33W)
SR732A
(0805)
1/2W (.5W )
1
Rated
Ambient
Temp.
70°C
––
Rated
Terminal
Part Temp.
125°C
105°C
125°C
110°C
125°C
110°C
125°C
125°C
T.C.R.
(ppm/°C)
Max.
±100
±200
±500
±800
±100
±200
±500
±800
±100
±200
±500
±800
±100
±200
±500
±800
±100
±200
±500
±1000
±100
±200
±500
±800
±100
±200
±500
±800
±100
±200
±500
±800
Resistance Range
E-24, E-96
(D±0.5%)
0.15Ω -
—
—
—
0.15Ω -
—
—
—
0.15Ω -
—
—
—
0.15Ω -
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
10Ω
E-24, E-96
(F±1%)
0.1Ω - 10Ω
—
—
—
0.1Ω - 10Ω
—
—
—
0.1Ω - 10Ω
—
—
—
0.1Ω - 10Ω
—
—
—
0.1Ω - 10Ω
—
—
—
0.1Ω - 10Ω
—
—
—
0.1Ω - 10Ω
—
—
—
0.1Ω - 10Ω
—
—
—
E-24
(G±2%)
—
0.1Ω - 10Ω
—
—
—
0.1Ω - 10Ω
—
—
—
0.1Ω - 10Ω
—
—
—
0.1Ω - 10Ω
—
—
—
0.1Ω - 10Ω
—
—
—
0.1Ω - 10Ω
—
—
—
0.1Ω - 10Ω
—
—
—
0.1Ω - 10Ω
—
—
E-24
(J±5%)
—
0.1Ω - 10Ω
0.051Ω - 0.091Ω
0.030Ω - 0.047Ω
—
0.1Ω - 10Ω
0.051Ω - 0.091Ω
0.030Ω - 0.047Ω
—
0.1Ω - 10Ω
0.056Ω - 0.091Ω
0.030Ω - 0.051Ω
—
0.1Ω - 10Ω
0.056Ω - 0.091Ω
0.030Ω - 0.051Ω
—
0.047Ω - 10Ω
0.036Ω - 0.043Ω
0.024Ω - 0.033Ω
—
0.047Ω - 10Ω
0.036Ω - 0.043Ω
0.024Ω - 0.033Ω
—
0.1Ω - 10Ω
0.056Ω - 0.091Ω
0.033Ω - 0.051Ω
—
0.1Ω - 10Ω
0.056Ω - 0.091Ω
0.039Ω - 0.051Ω
10Ω
10Ω
1/3W (.33W)
SR732B
(1206)
1/2W (.5W )
1
70°C
––
70°C
––
10Ω
1/2W (.5W)
SR732E
(1210)
2/3W (.66W
1
)
SR732H/W2H
(2010)
SR733A/W3A
(2512)
3/4W (.75W)
1W
70°C
70°C
* Parentheses indicate EIA package size codes.
** 1H, 1E (F: ±1%) E-24 values only.
Operating Temp: -55C to +125°C (SR731H only), -55°C to +150°C
If any questions should arise whether to use the “Rated Ambient Temperature” or the “Rated Terminal Part Temperature,” please give priority to the “Rated Terminal
Part Temperature.” Prior to use and for more details refer to “Introduction of the derating curves on the terminal part temperature” in the beginning of the catalog.
1
Prior to use, refer to the “Higher Power Ratings” in the beginning of catalog. Rated voltage =
√Power
rating x resistance value or max. working voltage, whichever is lower
environmental applications
Derating Curve
1E, 1J
2A: 0.33W
2B: 0.33W
2E: 0.5W
W2H, W3A
SR73 2A (0.5W), SR73 2B (0.5W), SR73 2E (0.66W)
For resistors operated at an ambient temperature
of 70°C or above, a power rating shall be derated
in accordance with the derating curve.
For resistors operated at a terminal part temperature of described for each size or above, a power rating shall be derated in
accordance with the derating curve.
Please refer to “Introduction of the derating curve based on the terminal part temperature” on the beginning of our catalog before use.
为了在产品众多、竞争激烈的市场上使产品与众不同,手持设备的制造商们往往把电池寿命和电源管理作为手机、PDA、多媒体播放器、游戏机、其它便携式消费类设备等产品的关键卖点来考虑。用户是从电池寿命这方面来看待电源管理的成效,其实它是多种因素共同作用的结果,这些因素包括 CPU 功能、系统软件、中间件,以及使用户可以在更长的充电或更换电池的间隔时间内享用各自设备的策略。 电源管理范围 任...[详细]