Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
KOA SPEER ELECTRONICS, INC.
4. Standard Applications
Part
Designation*
SR731H
(0201)
SR731E
(0402)
SR731J
(0603)
Power
Rating
@ 70°C
0.1W
1/6W (.166W)
1/5W (.2W)
1/3W (.33W)
SR732A
(0805)
1/2W (.5W
1
)
1/3W (.33W)
SR732B
(1206)
1/2W (.5W
1
)
1/2W (.5W)
SR732E
(1210)
2/3W (.66W )
1
SS-239 R9
Rated
Rated
T.C.R.
Ambient Terminal (ppm/°C)
Temp. Part Temp.
Max.
70°C
70°C
70°C
70°C
––
—
125°C
125°C
125°C
105°C
125°C
110°C
125°C
110°C
125°C
125°C
0 - ±400
0 - ±500
±200
±300
±500
±200
±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 E-24, E-96
(F±1%)
(D±0.5%)
—
—
—
—
—
0.15Ω - 10Ω
—
—
—
0.15Ω - 10Ω
—
—
—
0.15Ω - 10Ω
—
—
—
0.15Ω - 10Ω
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
1Ω - 10Ω**
—
0.51Ω - 10Ω**
0.2Ω - 0.47Ω**
0.1Ω - 0.18Ω**
0.1Ω - 10Ω
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%)
—
0.51Ω - 10Ω
0.2Ω - 0.47Ω
0.1Ω - 0.18Ω
0.1Ω - 10Ω
—
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%)
0.27Ω - 10Ω
0.18Ω - 0.24Ω
0.51Ω - 10Ω
0.2Ω - 0.47Ω
0.1Ω - 0.18Ω
0.1Ω - 10Ω
—
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
Absolute Maximum
Maximum Overload
Working
Voltage
Voltage
(5 Secs. Max.)
1.0V
1.11V
1.41V
2.5V
2.79V
3.53V
1.58V
3.95V
70°C
––
70°C
––
1.81V
4.54V
2.23V
5.59V
SR732H/W2H
(2010)
SR733A/W3A
(2512)
3/4W (.75W)
1W
70°C
70°C
2.73V
3.16V
6.84V
7.90V
* 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.
Derating Curve
5. Rating
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.
PAGE 2 OF 6
Bolivar Drive
I
P.O. Box 547
I
Bradford, PA 16701
I
USA
I
814-362-5536
I
Fax 814-362-8883
I
www.koaspeer.com
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
KOA SPEER ELECTRONICS, INC.
5-2 Voltage Rating
Resistors shall have a rated direct-current (DC)
continuous working voltage or approximate
sine-wave root-mean-square (RMS) continuous
working voltage at commercial-line frequency
and waveform corresponding to the power rating,
as determined from the following formula:
Where:
E = Rated voltage (V)
P x R P = Rated power (W)
R = Nominal resistance (Ω)
SS-239 R9
E=
√
In no case shall be rated DC or R.M.S. continuous
working voltage be greater than the applicable
maximum value.
6. Body and Marking
Type
SR73
SR73
Tolerance
D (±0.5%)
F (±1%)
G (±2%)
J (±5%)
Coating
Color
Indigo
Indigo
Marking
Color
White/ 4 digit
White/ 3 digit
Marking: a effective number and a multiplier. R means a decimal point.
7. Marking Method
D, F
4 digit
This character indicate
Ω
unit and
express 4 effective numbers.
R means a decimal point.
This character indicate
Ω
unit and
express 3 effective numbers.
R means a decimal point.
3 Digit
4 Digit
R20
0.2
W
R200
G, J
3 digit
4R7
4.7
W
4R70
PAGE 3 OF 6
Bolivar Drive
I
P.O. Box 547
I
Bradford, PA 16701
I
USA
I
814-362-5536
I
Fax 814-362-8883
I
www.koaspeer.com
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
主题：自备终端(BYOD)发展趋势;用员工自己的移动设备来控制对工作设施及设备的使用，会对信息安全产生怎样的影响;在不使公司有安全风险或不损害员工隐私的前提下，有哪些方式能安全地实现这样的设施及设备使用。 自备终端(Bring Your Own Device，简称BYOD)，即企业允许员工离职时保留自己的手机，这种做法正日益流行。如今智能手机功能也越来越多，我们不仅能用自己的手机访问电脑、网...[详细]
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