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| 型号： | PTGL10BC100M8B52A0 |
| 厂商： | Murata Electronics North America |
| 文件页数： | 13/105页 |
| 文件大小： | 0K |
| 描述： | THERMISTOR |
| 标准包装： | 1,000 |
| 系列： | Posistor® |
| 在 25°C 时的电阻（欧姆）： | 10 |
| 电阻公差： | ±30% |
| 工作温度： | -10°C ~ 60°C |
| 功率 - 最大： | 1.5W |
| 安装类型： | 通孔 |
| 封装/外壳： | 圆盘 10mm |
| 包装： | 带盒（TB） |
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! Note ? Please read rating and ! CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
? This catalog has only typical speci?cations. Therefore, please approve our product speci?cations or transact the approval sheet for product speci?cations before ordering.
R90E.pdf
Mar.4,2014
Application Notes
c Current Limiter for LED
Chip POSISTOR r : PRG series
1. Applications
POSISTOR r is an effective current limit solution based
on LED's allowable current and temperature
characteristics.
(1) LED lighting instruments
(2) LED backlight of flat displays
See below figures.
Protected by
Higher brightness vs.
IC
IC
POSISTOR r
a fixed resistor
Current Limit by
LED Driving Circuit
2. Benefits
(1) Higher LED brightness versus a fixed resistor. LED
can work in the smaller series resistance with
POSISTOR r at normal operation temperature. The
number of LEDs is possibly reduced.
(2) LED lifetime may be extended due to the current
limiting function of the POSISTOR r in cases of
overheat or overcurrent situation.
(3) Small 0805 package allows the POSISTOR r to be
placed close to the LED. It offers accurate detection of
ambient temperature near LED and increases
flexibility of packaging.
3. Recommended part numbers
Choose an appropriate part number having max. voltage
and resistance value. Review the protective threshold
current range based on the operating current and
temperature of the LED.
Allowable LED
Working Zone
Ambient Temp.
Allowable LED
Working Zone
Ambient Temp.
LED Current
a fixed resistor
Part Number
PRG21BC0R6MM1RA
PRG21BC0R2MM1RA
PRG21BC1R0MM1RA
PRG21BC2R2MM1RA
PRG21BC3R3MM1RA
PRG21BC6R8MM1RA
PRG21BC4R7MM1RA
Max.
Voltage
(V)
6
6
12
16
20
30
30
Max.
Current
(A)
10
10
10
6.5
6.0
3.5
5.0
Hold Current
(at +60 °C)
(mA)
285
500
220
150
120
80
100
Trip Current
(at -10 °C)
(mA)
1100
2000
850
600
480
320
400
Resistance
(at +25 °C)
(ohm)
0.6 ±20%
0.2 ±20%
1.0 ±20%
2.2 ±20%
3.3 ±20%
6.8 ±20%
4.7 ±20%
Curie Point
(°C) *
90
90
90
90
90
90
90
More
Details
page 14
page 14
page 14
page 14
page 14
page 14
page 14
*Curie Point means the temperature at which the resistance value reaches twice the resistance at 25°C.
Please ask for details.
11
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